【摘要】 变速抽水蓄能机组在电力系统中占比将越来越大，本文在已有的抽水蓄能电站全系统水力过渡过程计算模型的基础上，建立了双馈感应电机、水泵水轮机及调速器的耦合数学模型，实现了考虑电机暂态特性的水力过渡过程计算和基于定子电压定向矢量控制策略;建立了机组空载并网控制系统和并网运行的功率控制系统，实现了对机组有功功率和无功功率控制的解耦，以及对功率指令的快速响应。对机组启动空载并网、并网后负荷增加到满负荷及降低到空载过程进行了仿真，研究了机组对功率调节的动态响应，验证了控制策略的有效性。更多还原

【Abstract】 The proportion of variable speed pumped storage units in the power system will continue to increase. Based on the existing hydraulic transition process calculation model of pumped storage power stations,this paper establishes a coupled mathematical model of doubly fed induction motor,pump turbine and governor,which considers the transient characteristics of the motor for hydraulic transition process calculation,and based on stator voltage oriented vector control strategy. We have established no-load grid-connected control system and power control system for grid-connected operation,achieving decoupling of active and reactive power control of the unit and rapid response to power commands. Simulations were conducted on the process of starting the unit with no-load grid connection,increasing the load to full load and decreasing it to no-load after grid-connection. The dynamic response of the unit to power regulation was studied,and the effectiveness of the control strategy was verified.更多还原