IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0099463
(2002-03-14)
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발명자
/ 주소 |
- Hammerstrom, Donald J.
- Harman, Patrick
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출원인 / 주소 |
- International Power Systems, Inc.
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대리인 / 주소 |
Marger Johnson & McCollom, P.C.
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인용정보 |
피인용 횟수 :
133 인용 특허 :
7 |
초록
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An interface between software and hardware, as well as a fuzzy logic control algorithm, for controlling a DC-DC converter or an AC-DC or DC-AC inverter are provided. A control circuit receives commands from a control logic to operate a converter or inverter in various operation modes. Control softwa
An interface between software and hardware, as well as a fuzzy logic control algorithm, for controlling a DC-DC converter or an AC-DC or DC-AC inverter are provided. A control circuit receives commands from a control logic to operate a converter or inverter in various operation modes. Control software inputs can be translated into signals to operate the converter or inverter. Control variables in the control software can be configured to operate under various control modes. If the converter or inverter cannot simultaneously meet the demands placed on two or more variables, the control logic can use prioritization to choose a more important constraint.
대표청구항
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1. A controller configured to control voltages and current direction in a converter or inverter, comprising:a control logic configured to detect voltage levels on each side of a converter or inverter; anda control circuit configured to receive commands from the control logic to select an operation m
1. A controller configured to control voltages and current direction in a converter or inverter, comprising:a control logic configured to detect voltage levels on each side of a converter or inverter; anda control circuit configured to receive commands from the control logic to select an operation mode;wherein the converter or inverter is configured to be operated based on signals from the control circuit to control voltage and current in the converter or inverter. 2. A controller according to claim 1, wherein the operation mode is selected from a group comprising a boost right mode, a buck right mode, a boost left mode, and a buck left mode. 3. A controller according to claim 1, further comprising control software configured to control the control logic. 4. A controller according to claim 3, wherein the control software comprises a plurality of control variables. 5. A controller according to claim 4, wherein each control variable is configured to operate freely with no constraints, to operate freely within specified limits, to maintain a specified set point, or to track a variable analog input signal. 6. A controller according to claim 1, wherein the control logic is further configured to prioritize demands for control variables. 7. A controller according to claim 6, wherein the control logic is configured to choose a more important control variable when the converter or inverter cannot simultaneously meet the demands placed on two control variables. 8. A controller according to claim 1, wherein the controller is used in conjunction with a DC to DC converter. 9. A controller according to claim 8, wherein the DC to DC converter is used in conjunction with a step wave power converter. 10. A method of controlling voltages and current direction in a converter or inverter, comprising:detecting inputs on each side of a converter or inverter;selecting an operation mode for the converter or inverter based upon a difference between the inputs; andcontrolling the converter or inverter to cause it to operate in the selected operation mode. 11. A method according to claim 10, wherein the operation mode comprises a mode selected from a group comprising a boost right mode, a buck right mode, a boost left mode, and a buck left mode. 12. A method according to claim 10, further comprising configuring one or more control variables to operate freely with no constraints. 13. A method according to claim 10, further comprising configuring one or more control variables to operate freely within specified limits. 14. A method according to claim 10, further comprising configuring one or more control variables to maintain a specified net point. 15. A method according to claim 10, further comprising configuring one or more control variables to track a variable analog input signal. 16. A method according to claim 10, further comprising prioritizing demands for control variables by selecting a more important constraint where the converter cannot simultaneously meet the demands of two or more control variables. 17. A fuzzy logic controller, comprising:a control logic;a control circuit configured to receive instructions from the control logic and to control voltage inputs and current direction in a converter or inverter; andcontrol software comprising a plurality or control variables configured to monitor and respond to voltage and current demand. 18. A fuzzy logic controller according to claim 17 wherein the control software is configured to track a voltage demand on each side of the converter or inverter. 19. A fuzzy logic controller according to claim 17, wherein the control circuit is configured to modify a duty cycle of a converter or inverter based on fuzzy set memberships of the control variables. 20. A fuzzy logic controller according to claim 17, wherein the fuzzy logic controller is configured to prioritize a response to control variables where the demands of two or more control variables conflict with each other. 21. A controller configured to c ontrol voltages and current direction in a converter or inverter, comprising:a control logic configured to detect voltage levels on each side of a converter or inverter;a control circuit configured to receive commands from the control logic to select an operation mode, wherein the operation mode is selected from a group consisting of a boost right mode, a buck right mode, a boost left mode, and a buck left mode; andwherein the converter or inverter is configured to be operated based on signals from the control circuit to control voltage and current in the converter or inverter. 22. A controller configured to control voltages and current direction in a converter, wherein the converter comprises a DC to DC step wave power converter, comprising:a control logic configured to detect voltage levels on each side of the converter;a control circuit configured to receive commands from the control logic to select an operation mode; andwherein the converter is configured to be operated based on signals from the control circuit to control voltage and current in the converter. 23. A method of controlling a converter or inverter, comprising:detecting inputs an each side of a converter or inverter;selecting an operation mode for the converter or inverter in response to a difference between the inputs, wherein the operation mode comprises a mode selected from a group consisting of a boost right mode, a buck right mode, a boost left mode, and a buck left mode; andcontrolling the converter or inverter to cause it to operate in the selected operation mode.
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