风电-抽水蓄能联合系统的优化运行模型

拟定了风电-抽水蓄能联合系统3种可行的运行方案:全部风电供给抽水蓄能电站抽水;根据电网容量和风电场出力情况,部分风电直接输入电网,其余风电供给抽水蓄能电站抽水;风电全部直接输入电网.建立了风电-抽水蓄能联合系统的优化运行模型,计算得出了常规发电厂稳定运行的最小容量以及含一定容量风电的电网所需的抽水蓄能电站装机容量,建立了经济评价模型,根据综合经济评价结果,优选出了风电-抽水蓄能联合系统的最佳运行方案.

Optimal operation model for wind-powered pumped storage system

Three feasible schemes for operation of wind-powered pumped storage system were proposed as follows: all of wind power was supplied to pumped storage plants for water pumping;part of wind power was directly transported to grid,while the rest was supplied to pumped storage plants for water pumping based on the capacity of grid and output of wind farm;all of wind power was directly transported to grid.An optimal operation model for wind-powered pumped storage system was established.With the model,the minimum capacity for conventional power plants in normal operation and the installed capacity for pumped storage plants needed in grid with certain amount of wind power were calculated,and an economic evaluation model was developed.Based on the evaluated result,the optimal operation scheme for wind-powered pumped storage system was selected.