基于转子动能优化的双馈风机一次调频综合协调控制策略  

Comprehensive Coordinated Control Strategy for Primary Frequency Regulation of Doubly-fed Induction Generator Based on Rotor Kinetic Energy Optimization

作　　者：杨波[1] 赵巧娥[1] 武晓冬[1] 杨杰 Yang Bo;Zhao Qiao e;Wu Xiaodong;Yang Jie(School of Electric Power,Civil Engineering and Architecture,Shanxi University,Taiyuan Shanxi 030006,China)

机构地区：[1]山西大学电力与建筑学院,山西太原030006

出　　处：《电气自动化》2022年第4期19-21,25,共4页Electrical Automation

摘　　要：在风电机组参与电力系统一次调频过程中,为解决传统虚拟惯量控制中所存在的缺陷,提出了一种频率综合协调控制策略。在转子动能优化的虚拟惯量控制基础上附加功率备用控制,优化风机惯量支撑的出力,并能够在给定的减载系数下确定超速控制和桨距角控制的风速界限,使得风机在不同风况下能够满足备用容量需求,持续参与系统一次频率调节。经过优化后的综合协调控制策略充分利用转子动能,调频容量能够满足要求。在此控制策略下频率恢复时间快,调频效果更好。In the process of wind turbine participating in primary frequency regulation of power system,in order to solve the shortcomings of traditional virtual inertia control,a frequency integrated coordinated control strategy was proposed.The general idea of this strategy was to add power reserve control on the basis of virtual inertia control optimized by rotor kinetic energy,optimize the output supported by wind turbine inertia,and determine the wind speed for overspeed control and pitch angle control under a given load shedding coefficient.The boundary allowed the wind turbine to meet the reserve capacity requirement under different wind conditions and continuously participate in the primary frequency adjustment of the system.The optimized integrated coordinated control strategy can make full use of the rotor kinetic energy,and the frequency modulation capacity can meet the requirements.Under this control strategy,the frequency recovery time is fast and the frequency modulation effect is better.

关 键 词：双馈风机 一次调频 转子动能 虚拟惯量 综合协调控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]