基于风电极限穿透功率的经济调度优化模型研究

Research on optimization model of economic dispatch based on wind power penetration limit

风电出力的时变特性,决定了风电极限穿透功率对大规模风电并网系统的调度策略有重要的影响。在充分体现环境保护和风电特性的火电和风电的运行价格模型基础上,基于风电场极限穿透功率和风电场出力预报可信度,建立了风电并网电力系统经济优化调度模型。基于新疆乌鲁木齐电网对该调度模型进行算例仿真,并采用遗传算法(GA)实现模型求解,结果表明提出的清洁经济调度模型合理、有效。

The time-varying characteristics of wind power output determines that the wind power penetration limit has important influence on dispatch strategy of large-scale wind power integrated system.In the foundation of operation price model for thermal power and wind power,which reflects the characteristics of environment protection and wind power,an economic optimization dispatch model based on penetration limit of wind power and credibility of wind power output forecast is built.The simulation test for the model based on Urumqi grid is conducted,genetic algorithm（GA） is used to calculate the model,and the results indicate that the clean economic scheduling model is reasonable and effective.