A New Dynamic Optimization Method of Voltage and Reactive Power Control Strategy for UHV System
With the rapid development of electric power demand, a national wide and interconnected power grid based on ultra high voltage (UHV) technology is formed in China to improve further utilization of fossiland other renewable energy.The fluctuation of transmission power on UHV line, which is caused by uncertain power output of renewable energy or outages of main power plant, needs reactive power optimization and voltage control to ensure system safe and stable.From the time dimension, the dynamic optimizationmethodis used to switch on/off the low voltage capacitors or reactors to reduce the traversing reactive power in this paper.At the same time, the voltage of UHV line is dispatched to meet the demand of reactive power in the maximal degree.Finally, a simplified mathematical model of UHV grid is adopted to illustrate the proposed method.The simulation results showed that the DPM can effectively solve the sequential reactive power optimization problem.
Dynamic optimization Method Reactive power Renewable energy Ultra high voltage (UHV) Voltage control
Xin Wang Shicong Ma Jian He Shanshan Wang Zeng Bing Jian Zhang
CEPRI
国际会议
南京
英文
496-501
2015-09-21（万方平台首次上网日期，不代表论文的发表时间）