US3896349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric drive for motors interconnected to form a ring circuit
Assignee: Individual
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Filing: 1974-02-27
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Granted: 1975-07-22
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Expires: 1994-02-27
Abstract
Abstract This invention relates to electric drives. An electric drive comprising at least two gate-controlled electric motors, each of said motors comprising a synchronous machine having a rotor position sensor mounted on the shaft thereof, gate switching means provided with gate switch on and off control circuits, the output of said switching means being connected to armature winding sections of the synchronous machine, according to the invention, characterized in that said gate switch on control circuits of each of said gate switching means are connected to one output of the rotor position sensor of each subsequent synchronous machine thereby forming a ring circuit. This invention may find its use in the fields where stringent requirements are imposed upon synchronization of the electric drives.
Inventors
- 👤 Valery Konstantinovich Lozenko
- 👤 Vladimir Alexandrovich Morozov
- 👤 Vladimir Serafimovic Pavlikhin
- 👤 Anatoly Mikhailovich Santalov
- 👤 Leonid Nikolaevich Negodyaev
- 👤 Jury Ivanovich Kiryanov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:02
CPC Classifications
H; H02; H02P; H02P5/00; H02P5/74; H02P5/46; H02P5/52; H02P5/56
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
127 words
An electric drive comprising: at least two gatecontrolled electric motors, each of said gate-controlled electric motors comprising a synchronous machine, each of said gate-controlled electric motors having a rotor position sensor mounted on the shaft of said synchronous machine, each of said gate-controlled electric motors being provided with gate switching means, an output of said gate switching means being connected to armature winding sections of said synchronous machine; gates of said gate switching means; gate switch on control circuits for said gate switching means; gate switch off control circuits for said gate switching means, said gate switch on circuit of each of said gate switching means being connected to the first input of said rotor position sensor of each subsequent synchronous machine thereby forming a ring circuit.
Claim 2
Dependent Claim
127 words
An electric drive comprising: at least two gatecontrolled electric motors, each of said gate-controlled electric motors comprising a synchronous machine, each of said gate-controlled electric motors having a rotor position sensor mounted on the shaft of said synchronous machine, each of said gate-controlled electric motors being provided with gate switching means, an output of said gate switching means being connected to armature winding sections of said synchronous machine; gates of said gate switching means; gate switch on control circuits for said gate switching means; gate switch off control circuits for said gate switching means, said gate switch on circuit of each of said gate switching means being connected to the first input of said rotor position sensor of each subsequent synchronous machine thereby forming a ring circuit.
Claim 3
Dependent Claim
42 words
An electric drive according to claim 1, wherein said gate switch off control circuits for each of said gate switching means are connected to the second output of said rotor position sensor in each subsequent synchronous machine thereby forming a ring circuit.
Claim 4
Dependent Claim
37 words
An electric drive according to claim 1, wherein said gate switch off control circuits for each of said gate switching means are connected to the second output of said rotor position sensor of its own synchronous machine.
Claim 5
Dependent Claim
106 words
A electric drive according to claim 1 comprising: speed governors controlling the rotational speed of each of said gate-controlled electric motors; module-based and signbased phase-difference detectors for signals from said rotor position sensors of each pair of the correlated synchronous machines, said detectors being m(m- 1)/2 in number, the output of each of said module-based phase-difference detector being connected to inputs of two of said rotational speed governors of said pair of said correlated synchronous machines through controlled gates, the inputs of said controlled gates being connected to other two outputs of said sign-based phase-difference detector, wherein m is a number of said gate-controlled electric motors.
Claim 6
Dependent Claim
105 words
An electric drive according to claim 2, comprising: speed governors controlling the rotational speed of each of said gate-controlled electric motors; module-based and signbased phase-difference detectors for signals from said rotor position sensors of each pair of the correlated synchronous machines, said detectors being m(m-1)/2 in number, the output of each of said module-base phase-difference detector being connected to inputs of two of said rotational speed governors of said pair of said correlated synchronous machines through controlled gates, the inputs of said controlled gates being connected to other two outputs of said sign-based phasedifference detector, wherein m is a number of said gatecontrolled electric motors.
Claim 7
Dependent Claim
80 words
An electric drive according to claim 2, wherein said gate switch on and off control circuits for each gate switching means are connected respectively to the first and to the second outputs of the rotor position sensors of each subsequent synchronous machine through normally closed circuits of a twoposition multichannel relay while said circuits being connected to the first and the second outputs of the rotor position sensors of its own synchronous machine through normally opened circuits of said relay.
Claim 8
Dependent Claim
79 words
An electric drive according to claim 4, wherein said gate switch on and off control circuits for each gate switching means are connected respectively to said first and said second outputs of said rotor position sensors of each subsequent synchronous machine through normally closed circuits of a two-position multichannel relay while said circuits being connected to the first and the second outputs of said rotor position sensor of its own synchronous machine through normally opened circuits of said relay.
Claim 9
Dependent Claim
23 words
An electric drive according to claim 6, wherein said circuit controlling the operation of the relay is connected to a square-wave pulse generator.
Claim 10
Dependent Claim
23 words
An electric drive according to claim 7, wherein said circuit controlling the operation of the relay is connected to a square-wave pulse generator.
Claim 11
Dependent Claim
37 words
An electric drive according to claim 6, wherein said circuit controlling the operation of the relay is connected to a controlled-parameter sensor, said parameter being controlled, e.g. by the current in each of said gate-controlled electric motors.
Claim 12
Dependent Claim
38 words
An electric drive according to claim 7, wherein said circuit controlling the operation of the relay is connected to a controlled parameter sensor, said parameter being controlled, e.g. by the current in each of said gate-controlled electric motors.
Claim 13
Dependent Claim
161 words
An electric drive according to claim 1, wherein each of said gate-controlled electric motors is provided with a two-position multichannel controlled relay, normally closed circuits of said relays connecting said gate switch on and off control circuits of said gate switching means to said first and said second output of said rotor position sensor of each subsequent synchronous machines thereby forming a ring circuit for the electric drive comprising m gate-controlled electric motors, normally opened circuits of said relays connecting said gate switch on and off control circuits for said gate switching means to said first and said second outputs of the rotor position sensor of its own synchronous machine, while the first and the second outputs of said rotor position sensor of the subsequent synchronous machine are connected to said gate switch on and off control circuits for said gate switching means of the previous synchronous machine thereby forming a ring circuit of the electric drive comprising (m-1) electric motors.
Claim 14
Dependent Claim
160 words
An electric drive according to claim 2, wherein each of said gate-controlled electric motors is provided with a two-position multichannel controlled relay, normally closed circuits of said relays connecting said gate switch on and off control circuits of said gate switching means to said first and said second output of said rotor position sensor of each subsequent synchronous machines thereby forming a ring circuit for the electric drive comprising m gate-controlled electric motors, normally opened circuits of said relays connecting said gate switch on and off control circuits for said gate switching means to said first and said second outputs of the rotor position sensor of its own synchronous machine, while the first and the second outputs of said rotor position sensor of the subsequent synchronous machine are connected to said gate switch on and off control circuits for said gate switching means of the previous synchronous machine thereby forming a ring circuit of the electric drive comprising (m-1) motors.
Claim 15
Dependent Claim
160 words
An electric drive according to claim 4, wherein each of said gate-controlled electric motors is provided with a two-position multichannel controlled relay, normally closed circuits of said relays connecting said gate switch on and off control circuits of said gate switching means to said first and said second output of said rotor position sensor of each subsequent synchronous machines thereby forming a ring circuit for the electric drive comprising m gate-controlled electric motors, normally opened circuits of said relays connecting said gate switch on and off control circUits for said gate switching means to said first and said second outputs of the rotor position sensor of its own synchronous machine, while the first and the second outputs of said rotor position sensors of the subsequent synchronous machine are connected to said switch on and off control circuits for said gate switching means of the previous synchronous machine thereby forming a ring circuit of the electric drive comprising (m-1) electric motors.
Claim 16
Dependent Claim
89 words
An electric drive according to claim 14, wherein said circuit controlling the operation of each of said relays is connected to the output of a coincidence circuit, the first input of said coincidence circuit being connected through a threshold element to a controlled parameter sensor, e.g. by the rotational speed of the electric motor, while the second input of said circuit is connected to the output of the signbased phase-difference detector for signals generated by the rotor position sensors mounted on the delayed-by-phase rotating rotor of the synchronous machine.
References Cited (Backward Citations)
US3229179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |