摘要
针对静态无功优化系统仅采集、计算当前数据断面的缺陷,引入相似日负荷预测方法,对短期和超短期负荷进行预测,并进行负荷曲线合理分段,为下一个调度周期各个时段的电压无功控制提供决策依据,避免了由于负荷波动造成的各变电所电容的投切和有载主变分接头调节振荡或者不必要操作,延长设备的运行寿命。通过对某地区实际系统的应用表明,合理利用系统负荷历史数据,在线数据和预测数据,不但能满足电网电压无功优化运行的要求,而且有效减少设备的动作次数。
To overcome the shortcoming of static reactive power optimization system that just acquires and computes the current data, the short-term load forecast is introduced. It aims to avoid the surge and unnecessary action of adjustment for capacitor and transformer, and to extend service life of equipment. The application to the area grid shows that the strategy can meet the optimal operation of the power grid voltage and reactive power requirements, and reduce the action of equipment effectively by use of historical data, future data and the current data of load.
出处
《现代电力》
2008年第4期11-14,共4页
Modern Electric Power
关键词
无功优化
SCADA
无功电压控制策略
短期负荷预测
reactive power optimization
SCADA
reactive power/voltage control strategy
short-term load forecast
