考虑风电机组调控潜力的交直流有功功率协调控制策略  

Active Power Coordination Control Strategy of AC/DC System Considering Wind Turbine Regulation Potential

作　　者：熊浩 葛亚明 黄曲粲 杨丽 曹帅 王博仑 周霞 丁苍璧 XIONG Hao;GE Yaming;HUANG Qucan;YANG Li;CAO Shuai;WANG Bolun;ZHOU Xia;DING Cangbi(State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 210008,China;NARI Technology Development Co.,Ltd.,Nanjing 211106,China;Institute of Advanced Technology,Nanjing University of Posts and Telecommunications,Nanjing 210023,China)

机构地区：[1]国网江苏省电力有限公司,南京210008 [2]国电南瑞科技股份有限公司,南京211106 [3]南京邮电大学先进技术研究院,南京210023

出　　处：《南方电网技术》2023年第8期37-47,共11页Southern Power System Technology

基　　金：国家自然科学基金资助项目(61933005)。

摘　　要：在含高比例新能源送端电网经交直流混联外送系统中,换相失败将引起交直流混联系统潮流转移,并导致交流传输系统出现过载现象,因此提出了一种考虑风电机组调控潜力的交直流有功协调控制策略。首先,基于K-means聚类算法的风电机组工作状态判别模型对其工作状态进行分类,采集特征数据训练自组织映射神经(SOM)网络,采用最小量化误差(MQE)评估风电机组调控潜力;其次,通过调节直流传输功率的方法抑制直流连续换相失败,并基于风电机组主动功率控制原理降低具有调控潜力的风电机组的有功功率输出,达到减小交流传输系统过载危害的目的;最后,根据实际风电机组运行数据构建了基于SOM-MQE的风电机组调控潜力评价模型,同时在仿真平台上验证所提策略的有效性。In the AC/DC hybrid transmission system of sending-terminal power grid containing a high proportion of new energy,the commutation failure(CF)will cause power flow transfer of AC/DC hybrid system,and lead to overload phenomenon of AC transmis⁃sion system.This paper proposes an AC/DC active power coordination control strategy considering wind turbine(WT)regulation potential.Firstly,based on K-means clustering algorithm,the discrimination model of WT operation states classifies its operation states,and characteristic data are collected to train self-organizing map(SOM)network,minimum quantization error(MQE)is used to evaluate WT regulation potential.Secondly,the DC subsequent CF is suppressed by adjusting DC transmission power,and the ac⁃tive power output of WTs with regulation potential is reduced based on the active power control principle of WTs,which can reduce the overload harm of AC transmission system.Finally,the SOM-MQE based evaluation model of WT regulation potential based on actual WT operaiton data is built,and the effectiveness of the proposed strategy is verified on the simulation platform.

关 键 词：直流换相失败 交直流协调控制 风电调控潜力 SOM网络 

分 类 号：TM615[电气工程—电力系统及自动化]