【摘要】 针对高比例新能源与抽水蓄能联合发电的送端电网协调关系复杂可能导致新能源消纳能力不足的问题，文章提出基于变速抽蓄的新能源送端电网能量平衡优化控制方法。首先，研究变速抽水蓄能机组的运行特性，分析基于变频器控制的变速抽水蓄能机组有功无功输出特性；其次，对变速抽蓄提升新能源发电能力进行分析，建立新能源送端电网能量平衡优化模型；再次，对量子粒子群算法进行改进，提出新能源送端电网能量平衡优化控制算法；最后，参考西北某地区的新能源基地外送模式，构建变速抽水蓄能电站以及常规抽水蓄能电站与新能源配合的典型场景，对比分析变速抽水蓄能电站与常规抽水蓄能电站提升新能源消纳的能力。仿真结果表明，基于变速抽水蓄能的送端电网能量平衡优化控制方法能够提高新能源利用率，可显著提升新能源的消纳水平。更多还原

【Abstract】 Aiming at the problem that the complex coordination relationship of the sending-end power grid with high proportion of new energy and pumped storage combined power generation may lead to insufficient new energy consumption capacity, an energy balance optimization control method of the new energy sending-end power grid based on variable speed pumped storage is proposed. Firstly, the operating characteristics of variable speed pumped storage units are studied, and the active and reactive power output characteristics of variable speed pumped storage units based on frequency converter control are analyzed. Secondly, the variable speed pumping is used to analyze the improvement of new energy generation capacity, and the energy balance optimization model of the new energy sending end power grid is established. Then, the quantum particle swarm optimization algorithm is improved, and the energy balance opti-mization control algorithm of the new energy sending end power grid is proposed. Finally, with reference to the delivery mode of new energy base in a certain area of Northwest China, a typical scenario of variable speed pumped storage power station and conventional pumped storage power station cooperating with new energy is constructed. The improved new energy consumption capacity of variable speed pumped storage power station and conventional pumped storage power station is compared. The simulation results show that the energy balance optimization control method of the sending end power grid based on variable speed pumped storage can improve the utilization rate of new energy and play a significant role in improving the level of renewable energy consumption.更多还原