Power management and distribution with auxiliary DC bus
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-001/00
G05F-003/08
H01H-083/00
H02H-003/02
H02J-001/10
H02H-003/08
출원번호
US-0557783
(2012-07-25)
등록번호
US-9537299
(2017-01-03)
발명자
/ 주소
Rozman, Gregory I.
Moss, Steven J.
출원인 / 주소
Hamilton Sundstrand Corporation
대리인 / 주소
Kinney & Lange, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
A power management and distribution (PMAD) system includes a main DC bus, an auxiliary DC bus, a power converter, one or more hybrid solid-state circuit breakers, and a controller. The power converter converts power from the main DC bus to provide a regulated output to the auxiliary bus. Each hybrid
A power management and distribution (PMAD) system includes a main DC bus, an auxiliary DC bus, a power converter, one or more hybrid solid-state circuit breakers, and a controller. The power converter converts power from the main DC bus to provide a regulated output to the auxiliary bus. Each hybrid SSCB includes a main switch connected between the main DC bus and a load and an auxiliary switch connected between the auxiliary DC bus and the load. The controller selectively turns the main switch and the auxiliary switch On/Off to selectively supply power from the main DC bus and/or the auxiliary DC bus to the load, and to selectively regulate the voltage on the auxiliary DC bus.
대표청구항▼
1. A power management and distribution (PMAD) system comprising: a main direct current (DC) bus;an auxiliary DC bus;a controller;a power converter connected between the main DC bus and the auxiliary DC bus, the power converter comprising: a regulator switch that includes a regulator control terminal
1. A power management and distribution (PMAD) system comprising: a main direct current (DC) bus;an auxiliary DC bus;a controller;a power converter connected between the main DC bus and the auxiliary DC bus, the power converter comprising: a regulator switch that includes a regulator control terminal connected to the controller, wherein the controller is configured to control the regulator switch to control power from the main DC bus to the auxiliary DC bus;one or more hybrid solid-state circuit breakers (SSCBs) configured to receive power from the main DC bus as a first input and power from the auxiliary DC bus as a second input and provide a circuit breaker output to at least one load, each of the one or more hybrid SSCBs comprising: a main switch connected between the first input and the circuit breaker output that includes a main switch control terminal connected to the controller, wherein the controller is configured to control the main switch On to provide power from the main DC bus to the at least one load and Off to prevent distribution of power from the main DC bus to the at least one load; andan auxiliary switch connected between the second input and the circuit breaker output that includes an auxiliary switch control terminal connected to the controller, wherein the auxiliary switch is controlled by the controller to control the main switch On to provide power from the auxiliary bus to the at least one load and Off to prevent distribution of power from the auxiliary bus to the at least one load. 2. The (PMAD) system of claim 1, wherein during a pre-charge operation the controller turns Off the main switch, controls the regulator switch to regulate a converter voltage provided by the power converter to an initial voltage less than a main voltage on the main DC bus, and turns On the auxiliary switch. 3. The PMAD system of claim 2, wherein the controller controls the regulator switch to gradually increases the converter voltage and turns On the main switch when the converter voltage reaches a threshold level. 4. The PMAD system of claim 1, wherein during an overload operation the controller monitors current supplied to the at least one load, turns Off the main switch and turns On the auxiliary switch in response to the monitored current exceeding a first rated threshold. 5. The PMAD system of claim 4, wherein if the monitored current exceeds a second rated threshold while the auxiliary switch is On, the controller turns Off the auxiliary switch and controls the regulator switch to reduce a converter voltage supplied by the power converter to a minimum level, and wherein if the monitored current falls below the first rated threshold, the controller turns On the main switch. 6. The PMAD system of claim 5, wherein if the monitored current falls below a third rated threshold while the main switch and auxiliary switch are Off, then the controller controls the regulator switch to increases the converter voltage. 7. The PMAD system of claim 1, wherein during a current limiting operation the controller monitors current supplied to the at least one load, turns Off the main switch and turns On the auxiliary switch in response to the monitored current exceeding a first rated threshold, and controls the regulator switch to regulate a voltage supplied by the power converter based on the monitored current. 8. A controller that manages the distribution of power to one or more loads via a hybrid solid-state circuit breaker (SSCB) having at least a main switch connected between a first input and a circuit breaker output, and an auxiliary switch connected between a second input and a circuit breaker output, wherein a main direct current (DC) bus is connected to the first input, an auxiliary DC bus is connected to the second input and the circuit breaker output is connected to at least one load, and wherein a power converter that includes a regulator switch receives power from the main DC bus and provides a regulated output to the auxiliary DC bus, the controller configured for: providing a first control signal connected to a first control terminal of the main switch to control the state of the main switch, wherein the main switch distributes power from the main DC bus to the circuit breaker output when On and prevents the distribution of power from the main DC bus to the circuit breaker output when Off;providing a second control signal connected to a second control terminal of the auxiliary switch to control the state of the auxiliary switch, wherein the auxiliary switch distributes power from the auxiliary DC bus to the circuit breaker output when On and prevents the distribution of power from the auxiliary DC bus to the circuit breaker output when off; andproviding a third control signal connected to a third control terminal of the regulator switch to control a state of the regulator switch to regulate output voltage provided by the power converter to the auxiliary DC bus. 9. The controller of claim 8, wherein the controller pre-charges capacitive loads by turning Off the main switch via the first control signal, regulating the auxiliary DC bus to an initial level via the third control signal, and turning On the auxiliary switch to supply power to the load via the auxiliary DC bus. 10. The controller of claim 9, wherein the controller gradually increases the voltage on the auxiliary DC bus via the third control signal, and turns On the main switch and turns Off the auxiliary switch when the voltage on the auxiliary DC bus reaches a threshold level. 11. The controller of claim 9, wherein the controller provides overload protection by turning Off the main switch and turning On the auxiliary switch in response to a monitored current exceeding a first rated threshold. 12. The controller of claim 11, wherein the controller turns Off the auxiliary switch if the monitored current exceeds a second rated threshold, and decreases voltage on the auxiliary DC bus, wherein the second rated threshold is higher than the first rated threshold. 13. The controller of claim 12, wherein the controller turns On the main switch and turns Off the auxiliary switch if the monitored current decreases below the first rated threshold. 14. The controller of claim 9, wherein the controller provides current limiting by turning Off the main switch and turning On the auxiliary switch in response to a monitored current exceeding a first rated threshold value, wherein the controller regulates the voltage on the auxiliary DC bus based on the monitored current. 15. The controller of claim 14, wherein the controller reduces the voltage on the auxiliary DC bus to a minimum level if the monitored current exceeds the first rated threshold value for a pre-determined period of time.
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이 특허에 인용된 특허 (3)
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