IGCT-Plus换流阀的阳极电抗散热特性仿真与验证  

Simulation and Verification of Heat Dissipation Characteristics of Anode Reactance for IGCT-Plus Converter Valve

作　　者：刘成柱 刘洋 张猛 张云鹏 王红斌 韩迪 王雪薇 姚建华 LIU Cheng-zhu;LIU Yang;ZHANG Meng;ZHANG Yun-peng;WANG Hong-bin;HAN Di;WANG Xue-wei;YAO Jian-hua(Beijing Power Equipment Group Co.,Ltd,Beijing 101100,China)

机构地区：[1]北京电力设备总厂有限公司,北京101100

出　　处：《电工电气》2025年第3期41-45,共5页Electrotechnics Electric

摘　　要：阳极电抗对换流阀的运行起到稳定和保护作用,从基于IGCT-Plus器件的柔直换流阀用阳极电抗器运行工况出发,分析阳极电抗发热机理,得到了阳极电抗电流波形,并通过对阳极电抗结构与散热特性分析,得到了等效热路模型。建立阳极电抗三维模型,并开展了实际尺寸的有限元仿真分析,根据仿真结果,搭建了柔直换流阀MMC换流阀单模块试验回路。通过试验验证了基于IGCT-Plus器件的柔直换流阀用阳极电抗散热分析与仿真结果的准确性,同时表明在阳极电抗满足温升要求的前提下,优化散热水路流量可进一步减低阳极电抗成本,并通过试验验证方案的合理性,为基于IGCTMMC换流阀用阳极电抗的热仿真与工程实践提供了依据。The anode reactance plays a stabilizing and protective role in the operation of the converter valve,according to the operating conditions of the anode reactance for flexible HVDC valve based on IGCT-Plus,analyzing the anode inductor heating mechanism,then obtaining the anode reactance current waveform,and the equivalent thermal circuit model is obtained by analyzing the structure and heat dissipation characteristics of anode reactance.A three-dimensional model of the anode reactance is established and finite element simulation analysis is carried out based on actual dimensions.According to the simulation results,a single-module test circuit for an MMC(modular multilevel converter)converter valve in a flexible HVDC(high-voltage direct current)system has been constructed.The accuracy of the heat dissipation analysis and simulation results of the anode reactor for flexible HVDC valve based on IGCT-Plus devices is verified by experiments,and it is shown that under the premise that the anode reactance meets the temperature rise requirements,the cost of anode reactance can be further reduced by optimizing the flow rate of the cooling channel,and the rationality of the scheme is verified by the experiment,which provides a basis for the thermal simulation and engineering practice of the anode reactor based on IGCT MMC converter valve.

关 键 词：IGCT-Plus 柔直换流阀 阳极电抗 热仿真 

分 类 号：TM47[电气工程—电器]