摘要
在分析、计算变压器经济运行区间的基础上,研究了负载功率因数对变压器经济运行的影响,提出通过晶闸管投切电容器组(TSC)补偿负荷侧无功功率,提高变压器负荷功率因数,以降低变压器综合功率损耗。为避免变压器完全根据负荷变化频繁切换经济运行区间,降低变压器及开关的使用寿命,引入了短期负荷预测,利用预测的日负荷曲线对变压器的投切进行优化,提高变压器经济运行水平。在MATLAB仿真平台下对以上两项优化措施进行仿真,仿真结果验证了理论的正确性及措施的可行性。
Based on the analysis and calculation of transformer economic operation range, this paper researched the impact of economic operation of transformer on the load power factor and proposed to compensate the reactive power on load side through thyristor switched capacitors （TSC）. The transformer load power factor was improved so as to reduce the transformer integrated power loss. In order to avoid frequently changing economic operation range according to load changes completely, and affecting lives of transformers and switches, the short-term load forecasting was introduced, the forecast daily load curve used to optimize the switching transformer and improve the level of economic operation of transformer. Simulation results in Matlab platform verifies the theoretical correctness and feasibility of the above two measures.
出处
《电工电气》
2010年第4期47-50,共4页
Electrotechnics Electric
关键词
变压器
经济运行
晶闸管投切电容器组
短期负荷预测
transformer
economic operation
thyristor switched capacitors
short-term load forecast
