Study on System Stability Control Measures for Steady-state Overvoltage in UHV Half Wavelength Transmission Lines

doi:10.3969/j.issn.1000-7229.2019.02.014

Abstract

Abstract: Half wavelength AC transmission technology is a forward-looking and competitive new transmission technology. The steady-state overvoltage of ultra-high-voltage （UHV） half wavelength transmission lines is serious. It is necessary to focus on the stability control measures after fault. In this paper, the control measures is put forward, such as reducing power generation at the sending terminal, applying shunt reactive power compensation at the end of the line, and fast modulating direct current power. The relevant theoretical analysis is given, and the effectiveness of the control measures is verified by the large power grid simulation. The characteristic of UHV half wavelength transmission system is enriched and the theoretical and technical support is provided for the future new transmission technology by the paper research.

This work is supported by State Grid Corporation of China Research Program.

Key words: , half wavelength transmission, over voltage, control measure, direct current modulation

CLC Number:

TM 72

LIN Weifang, YI Jun, JIA Junchuan, WANG Ansi, YU Fangfang, FANG Shihui. Study on System Stability Control Measures for Steady-state Overvoltage in UHV Half Wavelength Transmission Lines

[J]. Electric Power Construction, 2019, 40(2): 109-.

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