摘要
针对最严重的电能质量问题电压跌落 ,建立了一种使用固态电子转换开关治理的模型 ,采用基于广义瞬时无功功率的快速检测电压跌落的算法和解决谐波分量影响检测精度的问题的方法 ,并通过控制策略的优化解决实际运行中主、备用电源电压幅值相位不一致时的切换问题。仿真结果验证了提出的模型和控制策略。
A SSTS model to solve the most serious problem of power quality caused by voltage sag is developed.The model adopts an algorithm on the basis of instantaneous theory of reactive power to detect voltage sag quickly and provides a strategy designed to solve the problem of inaccuracy caused by harmonics. However, the differences of amplitude and phase angle between main power source and alternative source exist in practice, which lead to the incapability of quickly transferring. By optimizing the control strategy, a solutioned is presented in this paper. All the models and strategy were verified by simulation.
出处
《电工技术杂志》
2004年第9期90-93,共4页
Electrotechnical Journal
