Research on Three-Phase Shunt Reactor Compensation of UHV Transmission Lines

doi:10.11930/j.issn.10.11930.2015.4.95

Abstract

Abstract: The shunt reactor has the function of limiting the power frequency overvoltage, inhibiting secondary arc current, avoiding the resonance overvoltage and keeping reactive power balance in the ultra high voltage(UHV) transmission line. The characteristics of the shunt reactor for limiting power frequency overvoltage are studied firstly, which shows that the shunt reactors can only effectively suppressed the load shedding power frequency overvoltage where the shunt reactors are located. In order to ensure the voltage along the line controlled in the allowable range, sectional compensation should be used for the line of more than 550 km in length. Then an analysis is made on the principle of the secondary arc current and the non full phase resonance and their relationship with the shunt compensation degree. Finally, the configurations principles and calculation methods of shunt reactor are proposed.

Key words: ultra high voltage, transmission line, shunt reactor, secondary arc current, recovery voltage, non full phase resonance overvoltage

CLC Number:

TM47

SHANG Liqun, CHEN Qi,. Research on Three-Phase Shunt Reactor Compensation of UHV Transmission Lines[J]. Electric Power, 2015, 48(4): 95-100.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.10.11930.2015.4.95

https://www.electricpower.com.cn/EN/Y2015/V48/I4/95

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