含风力发电的互联电力系统自动发电控制优化方法研究
摘要:随着大规模风电并网运行，单独依靠传统发电机组难以有效平抑风功率波动，有必要采用自动发电控制(automatic generation control，AGC)把风电场纳入电力系统调频控制，从而保证电力系统稳定运行。首先，通过分析双馈异步风力发电机(doubly fed induction generator，DFIG)的机械特性，兼顾风电并网运行的经济性，提出一种高风速工况下风电机组限功率运行参与电网二次调频以及平抑中低风速工况下的风功率波动的控制策略；其次，通过改进传统的桨距角控制使得高风速风电机组能够灵活响应电网的调度指令；最后，在4机2区域系统中搭建了含有风电场的自动发电控制模型，仿真结果验证了所提控制方案的有效性，说明风电机组可以快速灵活地响应系统的调度指令，减少联络线交换功率窜动以及频率变化，提高风电消纳能力和电力系统稳定性。
Abstract：With the large-scale wind power grid-connected operation, it is difficult to effectively suppress the wind power fluctuation by relying on the traditional generator set alone. It is necessary to adopt the automatic generation control (AGC) to incorporate the wind farm into the power system frequency modulation control to ensure the stable operation of the power system. Firstly, by analyzing the mechanical characteristics of the doubly fed induction generator (DFIG) and taking into account the economical efficiency of wind power grid-connected operation, the wind power fluctuation control of wind turbines under the high wind speed condition and the secondary power frequency regulation of the wind turbine under the low and medium wind speed conditions are proposed. Secondly, the strategy to improve the traditional pitch angle control enables the high wind speed wind turbine to flexibly respond to the grid's dispatch commands. Finally, the simulation of the automatic generation control control model with wind farm built in the 4-machine 2-area system verifies the effectiveness of the proposed control scheme. The wind turbine can respond to the system's dispatching instructions quickly and flexibly, reducing the power exchange frequency and frequency of the tie line exchange. It can also improve the wind turbine absorption capacity and power system stability.
标题：含风力发电的互联电力系统自动发电控制优化方法研究
title:Research on Automatic Generation Control Optimization Method of Interconnected Power System With Wind Power Generation
作者：杨仁杰,李宇星,吴绍云,刘柳,焦坤
authors:YANG Renjie,LI Yuxing,WU Shaoyun,LIU Liu,JIAO Kun
关键词：双馈异步风力发电机(DFIG),风功率波动,限功率运行,自动发电控制(AGC),桨距角控制,
keywords:doubly fed induction generator (DFIG),wind power fluctuation,limited power operation,automatic generation control (AGC),pitch angle control,
发表日期：2021-01-04
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