考虑时段校核和季节性储能的多区互联电力系统年度发电计划

Annual generation plan for multi-zone interconnected power system considering periodic verification and seasonal energy storage

随着新能源发电量占比的提高,新能源发电量季节性波动引起的年度电力电量平衡问题更加明显。建立年度发电计划模型,提出一种典型时段校核方法;在年度发电计划制定的过程中引入季节性储能设备,建立季节性储氢模型和考虑水头位置的季节性抽水蓄能线性化模型;为了应对新能源出力的不确定性,提出考虑时段校核和季节性储能的年度发电计划三阶段建模方法。算例结果验证了所提模型的有效性。

With the increase of ratio of renewable energy generation,the annual power and electricity balance problem caused by seasonal fluctuation of renewable energy generation becomes more obvious.An annual generation plan model is built,and a typical periodic verification method is proposed.The seasonal energy storage devices are introduced in the process of making annual generation plan,a seasonal hydrogen storage model and a linearized model of seasonal pumped storage considering the water head position are built.In order to deal with the uncertainty of renewable energy output,a three-stage modeling method for annual generation plan is proposed considering periodic verification and seasonal energy storage.The effectiveness of the proposed model is verified by example results.