CAJ | 학술논문

从频率稳定、电压稳定、功角稳定和动态稳定性的角度出发,全面研究了海南电网与南方主网联网对海南电网安全稳定的影响.联网后对海南电网的潮流和短路电流影响不大,海南电网的频率稳定性得到显著改善,电压稳定性有所提高,功角稳定性有所降低;联网后增加了海南相对于主网的振荡模式,可是其阻尼满足动态稳定要求;主网发生严重故障,可能导致海南电网频率或功角失稳;海南电网的运行方式改变,将对系统的稳定水平产生一定影响.综合各种稳定情况,联网后海南电网的稳定水平得到了提高,研究成果将为联网后电网的生产运行提供重要的依据和参考.
종빈솔은정、전압은정、공각은정화동태은정성적각도출발,전면연구료해남전망여남방주망련망대해남전망안전은정적영향.련망후대해남전망적조류화단로전류영향불대,해남전망적빈솔은정성득도현저개선,전압은정성유소제고,공각은정성유소강저;련망후증가료해남상대우주망적진탕모식,가시기조니만족동태은정요구;주망발생엄중고장,가능도치해남전망빈솔혹공각실은;해남전망적운행방식개변,장대계통적은정수평산생일정영향.종합각충은정정황,련망후해남전망적은정수평득도료제고,연구성과장위련망후전망적생산운행제공중요적의거화삼고.
From different viewpoints of frequency stability,voltage stability,transient stability,and dynamic stability,influence of the power grid interconnection between Hainan and China Southern Power Grid on Hainan Power Grid was analyzed in detail.The power grid interconnection has less influence on power flow and short circuit currents of Hainan Power Grid;and the frequency stability of Hainan Power Grid is remarkably enhanced,voltage stability is improved to a certain extent,however,transient angle stability is decreased;the frequency or angle stability may be caused by severe faults on the main power grid.The power grid interconnection brings a new low frequency oscillation mode between Hainan and the main grid,and its damping ration meets corresponding regulation,operation conditions may influence the stability of Hainan Power Grid.The conclusion is that the stability of Hainan Power Grid is enhanced after the power grid interconnection,which will give important guidance and reference to the operation of Hainan Power Grid after the interconnection.