直流融冰装置不带换流变压器可行性探讨.PDF

2012 年 第 6 卷 第 2 期 南 方 电 网 技 术 研究与分析 2012 ，Vol. 6 ，No. 2 SOUTHERN POWER SYSTEM TECHNOLOGY Study Analysis 文章编号：1674-0629 (2012)02-0099-05 中图分类号：TM712 文献标志码：A 直流融冰装置不带换流变压器的可行性探讨 1 2 1 1 1 吴传奇 ，傅闯 ，何俊佳 ，董曼玲 ，万华 （1. 华中科技大学 电气与电子工程学院，武汉430074 ；2. 南方电网科学研究院，广州510080 ） 摘要：为了解可移动式直流融冰装置去掉换流变压器后对装置本体性能和接入系统的稳定性的影响程度，以典型结构和 参数的25 MW 6 脉动直流融冰装置为研究对象，通过仿真计算，研究了去掉换流变压器对系统电压稳定性、装置交流 滤波器、装置绝缘配合和装置融冰性能的影响，结论为：该类型小容量直流融冰装置可以采用不带换流变压器方式运行。 关键词：直流融冰；电压稳定性；滤波器；绝缘配合 On the Feasibility of DC De-icing Installation Without Converter Transformer 1 2 1 1 1 WU Chuanqi , FU Chuang , HE Junjia , DONG Manling , WAN Hua (1. College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; 2. Electric Power Research Institute, CSG, Guangzhou 510080, China) Abstract: For the movable DC de-icing installation, it is a question whether there is any effect of it being without converter transformer on its characteristics and the stability of the system connected with it. The possible effects on the stability of the system as well as the AC filter, insulation coordination, and de-icing capability of the installation are studied in this paper with a 25 MW 6 pulse-circuit DC de-icing installation that has the typical structure and parameters of the movable DC de-icing installation. It is concluded that such small capacity DC de-icing installation is able to work well without converter transformer. Key words: DC de-icer; voltage stability; AC filter; insulation coordi