TM452.94 99063822太阳能微功耗光纤传感式电流互感器=An opticalfiber sensing current transformer with a littlepower consumption supplied with solar cell[刊,中]/张培铭,张泳(福州大学电器系.福建,福州(350002))∥光电工程.—19...TM452.94 99063822太阳能微功耗光纤传感式电流互感器=An opticalfiber sensing current transformer with a littlepower consumption supplied with solar cell[刊,中]/张培铭,张泳(福州大学电器系.福建,福州(350002))∥光电工程.—1998,25(1).—33—38介绍了太阳能微功耗光纤传感器式电流互感器的基本原理。展开更多
An observer-based fault diagnosis method and a fault tolerant control for open-switch fault and current sensor fault are proposed for interleaved flyback converters of a micro-inverter system. First, based on the topo...An observer-based fault diagnosis method and a fault tolerant control for open-switch fault and current sensor fault are proposed for interleaved flyback converters of a micro-inverter system. First, based on the topology of a grid-connected micro-inverter, a mathematical model of the flyback converters is established. Second, a state observer is applied to estimate the currents online and generate corresponding residuals. The fault is diagnosed by comparing the residuals with the thresholds. Finally, a fault-tolerant control that consists of a fault-tolerant topology for the faulty switch and a simple software redundancy control for the faulty current sensor, is proposed to achieve a fault-tolerant operation. The feasibility and effectiveness of the proposed method has been verified by simulation and experimental results.展开更多
文摘TM452.94 99063822太阳能微功耗光纤传感式电流互感器=An opticalfiber sensing current transformer with a littlepower consumption supplied with solar cell[刊,中]/张培铭,张泳(福州大学电器系.福建,福州(350002))∥光电工程.—1998,25(1).—33—38介绍了太阳能微功耗光纤传感器式电流互感器的基本原理。
基金Project(2012AA051601)supported by the High-Tech Research and Development Program of China
文摘An observer-based fault diagnosis method and a fault tolerant control for open-switch fault and current sensor fault are proposed for interleaved flyback converters of a micro-inverter system. First, based on the topology of a grid-connected micro-inverter, a mathematical model of the flyback converters is established. Second, a state observer is applied to estimate the currents online and generate corresponding residuals. The fault is diagnosed by comparing the residuals with the thresholds. Finally, a fault-tolerant control that consists of a fault-tolerant topology for the faulty switch and a simple software redundancy control for the faulty current sensor, is proposed to achieve a fault-tolerant operation. The feasibility and effectiveness of the proposed method has been verified by simulation and experimental results.
