电力市场下风电-抽水蓄能混合系统的运行优化

Operation Optimization of Wind－pumped Storage Hybrid Power System in Electricity Market

针对风电场与抽水蓄能电站联合运行中可能涉及的发电计划制定及运行优化问题,在风电场功率预测偏差及电价预测模型基础上,通过场景分析以应对风电场出力及电价的不确定性因素,将其划分为日前发电计划制定及运行方式调整的两阶段问题并建立了相应评价模型,在制定发电计划的基础上,通过运行方式调整能一定程度提高风电场及抽水蓄能电站的经济效益,最后通过对一实际算例进行分析,验证了该方法可行有效。

In order to solve the problem about generation scheduling and operation optimization of wind - pumped storage hy- brid power system in electricity market, the uncertainty of wind farm output and electricity price is solved by scenario analysis on the basis of wind power prediction error model and electricity price model. Then the operation optimization process is trans- lated to a two -stage problem about generation scheduling and operation adjustment. Firstly, the resonable generation schedule is calculated, then the operation adjustment based on the schedule is implemented, which can incease the revenue of genera- tion companies. The effectiveness of the proposed method is validated by studying a specified case at last.