US3790816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy storage and transfer power processor with self-contained parametric regulating loop
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1972-03-30
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Granted: 1974-02-05
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Expires: 1992-03-30
Abstract
Abstract An energy storage and transfer power processor having an inductive or inertial energy transformer for transferring energy from a power source to a load in repetitive energy transfer cycles each having an energy storage phase during which the transformer stores energy from the power source and an energy delivery phase during which the transformer delivers stored energy to the load. The power processor has its own parametric regulating loop for sensing a control parameter which deviates from a steady state value concurrently with deviation of the processor from an equilibrium condition wherein the energy stored in and the energy delivered by the energy transformer during successive transfer cycles remain equal and constant, such that average stored energy level in the storage means remains constant at a steady state level. The regulating loop regulates the transformer duty cycle in response to departure of the control parameter from its steady state value as a result of changes in the processor input and/or output conditions to instantaneously restore the processor to equilibrium. The invention may be utilized in both electrical and mechanical energy transfer systems to maintain a selected system output quantity at a steady state value which may be fixed or varied by command.
Inventors
- 👤 B Berman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:35
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/125; H02M3/135; H02M3/137; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/281
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
204 words
The method of delivering energy from a power source to a load which comprises the steps of: coupling an energy storage means to said source and load alternately to effect energy transfer from said source to said load in repetitive energy transfer cycles each having an energy storage phase during which said storage means receives and stores energy from said source and an energy delivery phase during which said storage means delivers stored energy to said load, whereby the energy transfer occurs in periodic fashion with a duty cycle which equals the ratio of one transfer cycle phase period to the total transfer cycle period and which duty cycle may be regulated to maintain an equilibrium condition wherein the energy stored in and the energy delivered by said storage means during successive energy transfer cycles remain substantially equal and constant such that the average stored energy level in said storage means remains substantially constant at a steady state level; sensing a control parameter which deviates from a steady state value in response to and concurrently with deviation of said average stored energy level from said steady state level; and regulating said duty cycle in response to said control parameter to maintain said equilibrium condition.
Claim 2
Independent Claim
204 words
The method of delivering energy from a power source to a load which comprises the steps of: coupling an energy storage means to said source and load alternately to effect energy transfer from said source to said load in repetitive energy transfer cycles each having an energy storage phase during which said storage means receives and stores energy from said source and an energy delivery phase during which said storage means delivers stored energy to said load, whereby the energy transfer occurs in periodic fashion with a duty cycle which equals the ratio of one transfer cycle phase period to the total transfer cycle period and which duty cycle may be regulated to maintain an equilibrium condition wherein the energy stored in and the energy delivered by said storage means during successive energy transfer cycles remain substantially equal and constant such that the average stored energy level in said storage means remains substantially constant at a steady state level; sensing a control parameter which deviates from a steady state value in response to and concurrently with deviation of said average stored energy level from said steady state level; and regulating said duty cycle in response to said control parameter to maintain said equilibrium condition.
Claim 3
Dependent Claim
29 words
The method of claim 1 wherein: said energy is electrical energy; and said control parameter is an electrical quantity related to the stored energy level in said storage means.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein: said storage means comprises and electrical inductor; and said control parameter is current flow through said inductor.
Claim 5
Dependent Claim
223 words
An energy transfer system for transferring energy from a power source to a load comprising: energy transfer means including input means for connection to said power source, output means for connection to said load, energy storage means, and time ratio means for effecting energy transfer from said input means to said output means in repetitive energy transfer cycles each having and Energy storage phase during which said storage means receives and stores energy supplied to said input means and an energy delivery phase during which said storage means delivers stored energy to said output means, whereby said transfer means has a duty cycle which equals the ratio of one transfer cycle phase period to the total transfer cycle period and which duty cycle may be regulated to maintain an equilibrium condition wherein the energy stored in and the energy delivered by said storage means during successive energy transfer cycles remain substantially equal and constant such that the average stored energy level in said storage means remains substantially constant at a steady state level; means for sening a control parameter which deviates from a steady state value in response to and concurrently with a deviation of said average stored energy level from said steady state level; and means for regulating said duty cycle in response to said control parameter to maintain said equilibrium condition.
Claim 6
Dependent Claim
223 words
An energy transfer system for transferring energy from a power source to a load comprising: energy transfer means including input means for connection to said power source, output means for connection to said load, energy storage means, and time ratio means for effecting energy transfer from said input means to said output means in repetitive energy transfer cycles each having and Energy storage phase during which said storage means receives and stores energy supplied to said input means and an energy delivery phase during which said storage means delivers stored energy to said output means, whereby said transfer means has a duty cycle which equals the ratio of one transfer cycle phase period to the total transfer cycle period and which duty cycle may be regulated to maintain an equilibrium condition wherein the energy stored in and the energy delivered by said storage means during successive energy transfer cycles remain substantially equal and constant such that the average stored energy level in said storage means remains substantially constant at a steady state level; means for sening a control parameter which deviates from a steady state value in response to and concurrently with a deviation of said average stored energy level from said steady state level; and means for regulating said duty cycle in response to said control parameter to maintain said equilibrium condition.
Claim 7
Dependent Claim
85 words
An energy transfer system according to claim 4 wherein: said power source and load comprise an electrical power source and an electrical load, respectively; said storage means comprises an electrical energy storage means; said time ratio means comprises electrical switching means operable alternately to one state to connect said storage means to said input means and to another state to connect said storage means to said output means; said control parameter is an electrical quantity related to the stored energy level in said storage means.
Claim 8
Dependent Claim
16 words
An energy transfer system according to claim 5 wherein: said storage means comprises an electrical inductor.
Claim 9
Dependent Claim
18 words
An energy transfer system according to claim 6 wherein: said control parameter is current flow through said inductor.
References Cited (Backward Citations)
US3566717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |