The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지

The Reference Wave Generator for Dynamic Voltage Restorers by use of PQR Instantaneous Power Theory

PQR 순시전력이론에 의한 동적전압보상기의 기준파 발생기

  • 김효성 (천안공업대학 제어계측과) ;
  • 이상준 ((주)로템 중앙연구소) ;
  • 설승기 (서울대학교 전기ㆍ컴퓨터공학부)
  • Published : 2003.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

Dynamic Voltage Restorers (DVR)s are known as the best effective and economic means to compensate for voltage sags and swells. This paper proposes a novel method to generate reference voltages synchronized with the grid whether the line voltages are distorted by a fault or not. The proposed reference wave generator (RWG) looks for the original wave forms from the corrupted line voltages and synthesizes the expected positive sequence reference waves for DVRs. There is no transient problem on the generated reference waves when the line voltages are distorted by the fault.

순시전압강하보상기 (DVR)는 순시전압강하 및 상승을 보상하기 위한 가장 효과적이고 경제적인 수단으로 알려져 있다. 본 논문은 계통의 전압이 사고에 의해서 심하게 왜곡되는 경우에서도 계통과 동기된 정현적인 기준파를 생성하는 방법을 제시한다. 제안된 기준파발생기 (RWG)는 사고로 왜곡된 전압으로부터 원래의 정현적인 파형을 추출하고 정상 성분만의 전압을 합성하여 DVR의 제어에 사용하도록 한다. 전윈 전압의 사고 순간에도 RWG는 과도적인 문제가 없는 안정된 정현 파형을 출력한다.

Keywords

References

  1. C74 IEEE PES Monitoring of Computer Installation for Power Line Disturbances G.W.Allen;D.Segall
  2. IEEE Trans. on Industry Appl. v.27 no.1 Predicting and Preventing Problems Associated with Remote Fault-Clearing Voltage Dips L.Conrad;K.Little;C.Grigg
  3. IEEE Trans. on Industry Application v.31 no.4 Point of Utlization Power Quality Study Results D.S.Dorr
  4. 17th International Telecommunications Energy Conference INTELEC '95 National Power Laboratory Power Quality Study 1972 to 1979 Revisited J.J.Stanislawski
  5. IEEE Trans. on Industry Application v.34 no.5 Canadian National Power Quality Survey:Frequency and Duration of Voltage Sags and Surges At Industrial Sites D.O.Koval;R.A.Bocancea;K.Yao;M.B.Hughes
  6. Conference Records of CIRED'99 Statistical Analysis of Voltage DIPs and Interruptions Final Results form the EPRI Distribution System Power Quality Monitoring Surve D.D.Sabin;T.E.Grebe;M.F.McGranaghan;Sundaram
  7. Conference Records of CIRED '99 Is the Danish Power Quality in Accordance with International Standards? J.Knudsen;A.E.Petersen;A.Vikkelso
  8. IEEE Trans. on Industry Applications v.29 no.2 Voltage Sags in Industrial Systems M.F.McGranaghan;D.R.Mueller;M.J.Samotyl
  9. Proceedings of EMPD '98 v.2 The Role of Custom Power Products in Enhancing Power Quality at Industrial Facilitie's M.D.Stump;G.J.Keane;F.K.S. Leong
  10. ABB Review: Focus on Transmission and Distribution. The Corporate Technical Journal of the ABB Group no.3 Power Quality The News Paradigm for MV Power Distribution L.Heinemann
  11. Conference Records of CIRED'99 Innovative System Solutions for Power Quality Enhancement K.Chen;A.Kara;P.Daehler;J.Guay;R.Tinggren
  12. IEEE Conference Records on ISIE'99 Bled,Slovenia Three-Phase Static Series Voltage Regulator Control Algorithms for Dynamic Sag Compensation G.Joos
  13. IEEE Conference Records on APEC '01 Control Strategies for Dynamic Voltage Restorer Compensating Voltage Sags with Phase Jump J.G.Nielsen;F.Blaabjerg;N.Mohan
  14. IEEE Trans. on Power Electronics v.17 no.5 Instantaneous Power Compensation in Three-Phase Systems by Using p-q-r Theory H.Kim;F.Blaabjerg;B.Bak-Jensen;J.Choi
  15. IEEE Trans. on Power Electronics v.17 no.5 Spectral Analysis of Instantaneous Powers in Single-phase and Three-phase Systems with Use of p-q-r Theory H.Kim;F.Blaabjerg;B.Bak-Jensen