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AC 계통 무효전력 제어를 위한 HVDC 시스템 설계

HVDC System Design for AC Network Reactive Power Control

  • 투고 : 2012.05.08
  • 심사 : 2012.09.24
  • 발행 : 2013.01.01

초록

This paper deals with the concept design of HVDC system for controlling AC network reactive power. HVDC system can control active power and reactive power and the control concept of reactive power is similar to SVC(Static Var Compensator). Reactive power is controlled by adjusting firing angle of HVDC system under the condition that AC filters are switched. Reactive power depends on AC voltage condition, considering the steady-state and transient state to maintain the stable operation of AC network in the viewpoint of voltage stability. Therefore, in the design stage of HVDC, the reactive power required in the AC network must be considered. For the calculation of operation angle in HVDC system, the expected reactive power demand and supply status is examined at each AC system bus. The required reactive power affects the determination of the operation angle of HVDC. That is, the range of "control deadband" of operation angle should have the capability supplying the required reactive power. Finally, the reactive power control concepts is applied to 1GW BTB Pyeongtaek-Dangjin HVDC system.

키워드

참고문헌

  1. E.W.Kimbark, "Direct Current Transmission", Vol. 1, John Wiley & Sons, 1971
  2. "Use of DC Converters for VAR Control," CIGRE 82, Feb 1994
  3. Chan-Ki Kim et al. "HVDC Transmission - Power Conversion Applications in Power Systems", IEEE PRESS, WILEY, 2009
  4. "Main Circuit Parameters", #2 HVDC ALSTOM Report 2009