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오원현(W.H Oh),유창훈(C.H. Yoo),신은철(E.C. Shin),박성민(S.M. Park),노학엽(H.Y. Noh),유지윤(J.Y. Yoo) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(2)
Hysteresis controllers are intrinsically robust to system parameters, exhibit very high dynamic response and are suitable for simple implementation But the current control using a conventional hysteresis controller has the disadvantage that high switching frequency may happen due to lack of coordination among individual hysteresis controllers of three phases This will of course increase the switching loss in addition, the current error IS not strictly limited So, In this paper to reduce the switching frequency, a double band hysteresis current contioller is proposed The presented control system was tested with digital simulation in the Borland C++ program and demonstrate the advantage of proposed hysteresis current controller
D-STATCOM의 스위칭 주파수 저감을 위한 이중밴드 히스테리시스 전류제어에 관한 연구
김범식(B.S. Kim),신은철(E.C. Shin),오원현(W.H. Oh),이상빈(S.B. Lee),유지윤(J.Y. Yoo) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
The current control using a conventional hysteresis controller of a STATCOM based on two level VSI has high switching frequency. This will increase the switching loss. In addition, the current error is not strictly limited. So, in this paper to reduce the switching frequency, a novel double band hysteresis current controller based on three level VSI(Voltage Source Inverter) is proposed. A conventional hysteresis current control and a novel hysteresis current control was tested with digital simulation in the Borand C++program and demonstrate the advantage of the novel hysteresis current controller.