CAJ | 학술논문

超高压输电通道与受端电网大量的无功功率交换将对受端电网的无功电压调节带来困难, 造成受端电网无功电压支撑能力减弱, 对受端电网的安全稳定运行产生不利的影响. 基于高压输电线路模型, 分析了超高压输电通道与受端电网之间的无功交换量和电压水平、有功功率潮流之间的相关性, 建立了评价指标"边界电压( boundary of voltage, BV)"及"边界功率( boundary of power, BP)"以量化评估受端电网的无功电压支撑能力, 对电网大方式运行时提升BV、 BP的几种措施进行了仿真和对比分析并提出了较优的策略.
초고압수전통도여수단전망대량적무공공솔교환장대수단전망적무공전압조절대래곤난, 조성수단전망무공전압지탱능력감약, 대수단전망적안전은정운행산생불리적영향. 기우고압수전선로모형, 분석료초고압수전통도여수단전망지간적무공교환량화전압수평、 유공공솔조류지간적상관성, 건립료평개지표"변계전압( boundary of voltage, BV)"급"변계공솔( boundary of power, BP)"이양화평고수단전망적무공전압지탱능력, 대전망대방식운행시제승BV、 BP적궤충조시진행료방진화대비분석병제출료교우적책략.
Reactive power exchange amount between EHV transmission line and receiving power network makes it difficult for reactive power voltage adjustment in receiving power network, which may lead to weakened capability of reactive power voltage support of re-ceiving power network and adverse impact on safe and stable operation of power network. Based on EHV transmission line model, the correlation between voltage and active power flow and the reactive power exchange amount between EHV transmission line and receiv-ing power network is analyzed in this paper. The evaluation indexes, i. e. , boundary of voltage( BV) and boundary of power( BP) are established to quantify the reactive power and voltage support ability of receiving power network. Finally comparative simulations on several existing measures are carried out and the superior proposal to improve BV and BP under heavy load flow mode is put forward.