Method and apparatus for high efficiency operation of electromechanical energy conversion devices

Claim 1

A method for minimizing, by use of a predetermined optimizing function, the loss of power in a separately excited electromechanical energy conversion device and in a controller of said energy conversion device, said energy conversion device having n spatially fixed windings, n≧1, for producing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said method comprising: the step of first generating a command signal having a magnitude A; the step of generating currents I 1 (A), I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and the step of generating currents I n+1 (A), I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A),I n+2 (A), . . . , I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal having a magnitude A satisfy said predetermined optimizing function; and wherein said predetermined optimizing function takes into account the incremental changes in said first and second magnetic fields caused by each of said n+m currents in each of said n+m windings.

Claim 2

A method for minimizing, by use of a predetermined optimizing function, the loss of power in a separately excited electromechanical energy conversion device and in a controller of said energy conversion device, said energy conversion device having n spatially fixed windings, n≧1, for producing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said method comprising: the step of first generating a command signal having a magnitude A; the step of generating currents I 1 (A), I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and the step of generating currents I n+1 (A), I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A),I n+2 (A), . . . , I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal having a magnitude A satisfy said predetermined optimizing function; and wherein said predetermined optimizing function takes into account the incremental changes in said first and second magnetic fields caused by each of said n+m currents in each of said n+m windings.

Claim 3

An apparatus for minimizing, by use of a predetermined optimizing function, the loss of power in a separately excited electromechanical energy conversion device and in a controller of said energy conversion device, said energy conversion device having n spatially fixed windings, n≧1, for producing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal having a magnitude A; means for generating currents I 1 (A), I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A), I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A),I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal having a magnitude A satisfy said predetermined optimizing function; and wherein said predetermined optimizing function takes into account the incremental changes in said first and second magnetic fields caused by each of said n+m currents in each of said n+m windings.

Claim 4

An apparatus for minimizing, by use of a predetermined optimizing function, the loss of power in a separately excited electromechanical energy conversion device and in a controller of said energy conversion device, said energy conversion device having n spatially fixed windings, n≧1, for producing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal having a magnitude A; means for generating currents I 1 (A), I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A), I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A),I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal having a magnitude A satisfy said predetermined optimizing function; and wherein said predetermined optimizing function takes into account the incremental changes in said first and second magnetic fields caused by each of said n+m currents in each of said n+m windings.

Claim 11

A method for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said method comprising; the step of first generating a command signal A; the step of generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and the step of generating currents I n+1 (A),I n+2 (A), . . . , I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . I n (A),I n+1 (A), I n+2 (A), . . . I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said first and second magnetic fields caused by each of said n+m currents in each of said n+m windings.

Claim 12

A method for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said method comprising; the step of first generating a command signal A; the step of generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and the step of generating currents I n+1 (A),I n+2 (A), . . . , I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . I n (A),I n+1 (A), I n+2 (A), . . . I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said first and second magnetic fields caused by each of said n+m currents in each of said n+m windings.

Claim 13

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . , I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said first magnetic field caused by said n currents in each of said n windings.

Claim 14

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . , I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said first magnetic field caused by said n currents in each of said n windings.

Claim 15

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings, m≅1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said first magnetic field caused by said m currents in each of said m windings.

Claim 16

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings, m≅1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said first magnetic field caused by said m currents in each of said m windings.

Claim 17

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings having resistance, n≧1, for providing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said resistance of said n windings as a function of said n currents.

Claim 18

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings having resistance, n≧1, for providing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said resistance of said n windings as a function of said n currents.

Claim 19

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings having resistance, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said resistance of said m windings as a function of said m currents.

Claim 20

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings having resistance, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said resistance of said m windings as a function of said m currents.

Claim 21

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings having resistance, n≧1, for providing a first magnetic field, and having m movable windings having resistance, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said resistance of said n+m windings as a function of said n+m currents.

Claim 22

An apparatus for minimizing, by use of an optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings having resistance, n≧1, for providing a first magnetic field, and having m movable windings having resistance, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said resistance of said n+m windings as a function of said n+m currents.

Claim 23

An apparatus for minimizing, by use of a predetermined optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said first and second magnetic fields caused by each of said n+m currents in each of said n+m windings.

Claim 24

An apparatus for minimizing, by use of a predetermined optimizing function, the total loss of power in a circuit having power loss components including a separately excited electromechanical energy conversion device, a controller of said energy conversion device, and a power source if said energy conversion device is a motor or a load if said energy conversion device is a generator, said energy conversion device having n spatially fixed windings, n≧1, for providing a first magnetic field, and having m movable windings, m≧1, for producing a second magnetic field which opposes said first magnetic field produced by said n spatially fixed windings, such that said first magnetic field produced by said n spatially fixed windings can be varied, at least in part, independently of said second magnetic field produced by said m movable windings, said apparatus comprising: means for first generating a command signal A; means for generating currents I 1 (A),I 2 (A), . . . ,I n (A) in said n spatially fixed windings, respectively; and means for generating currents I n+1 (A),I n+2 (A), . . . ,I n+m (A) in said m movable windings, respectively; wherein said currents I 1 (A),I 2 (A), . . . ,I n (A),I n+1 (A), I n+2 (A), . . . ,I n+m (A) are selected in such a manner that their magnitudes as a function of said command signal A satisfy said optimizing function; and wherein said optimizing function takes into account the incremental changes in said first and second magnetic fields caused by each of said n+m currents in each of said n+m windings.