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1.新能源电力系统全国重点实验室(华北电力大学),河北省保定市 071003
2.国网冀北电力有限公司,北京市 100054
赵书强(1964—),男,博士,教授,博士生导师,主要研究方向:电力系统分析与控制、电力系统规划与可靠性。E-mail:zsqdl@163.com
高铭阳(2001—),男,硕士研究生,主要研究方向:新能源电力系统稳定与控制。E-mail:gaomingyang0116@163.com
王慧(1982—),男,通信作者,博士,高级工程师,主要研究方向:新能源电力系统的分析与控制。E-mail:wanghui@ncepu.edu.cn
收稿日期:2024-11-22,
修回日期:2025-03-11,
网络出版日期:2025-03-27,
纸质出版日期:2025-09-10
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赵书强,高铭阳,王慧等.基于频率-转速下垂控制的储能型双馈调相机惯量支撑方法[J].电力系统自动化,2025,49(17):112-121.
ZHAO Shuqiang,GAO Mingyang,WANG Hui,et al.Inertia Support Method of Energy Storage Doubly-fed Condenser Based on Frequency-Rotor Speed Droop Control[J].Automation of Electric Power Systems,2025,49(17):112-121.
赵书强,高铭阳,王慧等.基于频率-转速下垂控制的储能型双馈调相机惯量支撑方法[J].电力系统自动化,2025,49(17):112-121. DOI: 10.7500/AEPS20241122004.
ZHAO Shuqiang,GAO Mingyang,WANG Hui,et al.Inertia Support Method of Energy Storage Doubly-fed Condenser Based on Frequency-Rotor Speed Droop Control[J].Automation of Electric Power Systems,2025,49(17):112-121. DOI: 10.7500/AEPS20241122004.
作为一种新型调相机设备,储能型双馈调相机(ESDFC)不仅具备同步调相机的强电压支撑能力,而且可充分利用转子储能改善频率响应特性,为高比例新能源接入电力系统的安全稳定运行提供支撑。首先,针对当前有功型虚拟惯量控制方法难以兼顾储能型双馈调相机稳态定速运行、暂态惯量支撑及转速自恢复的问题,提出一种基于频率-转速下垂控制的惯量支撑方法,并阐明了频率扰动期间的转速调节过程。然后,通过小信号建模对不同控制参数下的等效惯量进行评估,构建了并网系统频率响应模型,并采用特征值法对小干扰稳定性进行分析,据此讨论了主要控制参数的选取原则。最后,通过新能源场站并网仿真算例验证了所提惯量控制策略对频率支撑的有效性。
As a new type of condenser equipment
the energy storage doubly-fed condenser (ESDFC) not only has the strong voltage support ability of the synchronous condenser
but also can make full use of the rotor energy storage to improve the frequency response characteristics
thus providing support for the safe and stable operation of the power system with the integration of high proportion of renewable energy. First
aiming at the problem that the current active virtual inertia control methods have difficulties in balancing the steady-state constant-speed operation
transient inertia support and rotor speed self-recovery of the ESDFC
an inertia support method based on the frequency-rotor speed droop control is proposed to clarify the rotor speed regulation process during the frequency disturbance. Then
the equivalent inertia with different control parameters is evaluated by small signal modeling
and the frequency response model of the grid-connected system is constructed. The eigenvalue method is used to analyze the small signal stability
and the selection principle of the main control parameters is discussed. Finally
the effectiveness of the proposed inertia control strategy for the frequency support is verified by the grid-connected simulation case of the renewable energy station.
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