시스템 응답을 고려한 UPS 인버터의 출력 LC필터 설계

Output LC Filter Design for UPS Inverter Considering the Response of System

  • 발행 : 2001.07.01

초록

The conventional output filter design methods of a voltage source inverter includes two main problems: the performance is not sure to satisfy the specification under the nonlinear load; the designed filter must be occasionally modified when the controller is designed. In this paper, we analyze the relation between both linear and nonlinear loads, the output voltage magnitude, LC lowpass filter parameters, and the control response time. Upon the basis, both filter and controller are simultaneously designed for the performance to satisfy the specification under the nonlinear load as well as linear load. The proposed method sharply enhances the reliability of the performance. P.U is used for the method to be applied to all the quantities of the system. The simulation and the experiment of the proposed method carried out respectively to verify the validity.

키워드

참고문헌

  1. 최재호, '전력품질 장애와 대책,' 전력전자 학회지, vol. 5, no. 1, pp. 13-18, 2000
  2. 유병우, 이상훈, 김병진, 김재식, 최재호, 김말수, 김민규, 최창호, '낮은 THD를 가지는 3상 UPS용 인버터의 이중제어기법,' 대한전기학회논문집, vol. 47, no. 8, pp. 1176-1181, 1998
  3. A. Kusco and D. Galler, 'Output Impedance of PWM UPS Inverter- Feedback VS. Filters, ' in Conf. Rec. IEEE PESC'90, pp. 1044-1048, 1990 https://doi.org/10.1109/IAS.1990.152313
  4. J. Kim and J.Choi, 'Output Filter Design of Voltage Source Inverter Considering the Performance of Controller,' in Conf. Rec. IEEE PowerCon' 2000, pp. 1659-1664, 2000 https://doi.org/10.1109/ICPST.2000.898225
  5. M. Boost and P. Ziogas, 'Towards a Zero-Output Impedance UPS system,' IEEE Trans. Ind. Appl., vol. 25, no. 3, pp. 408-418, 1989 https://doi.org/10.1109/28.31210
  6. S. B. Dewan and P. D. Ziogas, 'Optimum Filter Design for a Single-Phase Solid-State UPS System', IEEE Trans. Ind. Appl., vol. IA-15, no. 6, pp. 664-669, 1979
  7. S. Manabe, ' Coefficient Diagram Method, ' Proc. of 14th IFAC Symposium on Automatic Control in Aerospace, pp. 199-210, seoul, 1998. 8