陆佳政 1吴传平 1李波 1张红先 1朱思国 1谭艳军1
作者信息
- 1. 国网湖南省电力公司电力科学研究院，国家电网公司输变电设备防冰减灾技术实验室，湖南 长沙 410007
- 折叠
摘要
Abstract
This paper focuses on integrated comparative research on performance and economic usefulness of three typical topologies for DC de-icing equipment, including uncontrolled diode rectification integrated with adjustable rectiformer, thyristor-based half controlled rectifier, and insulated gate bipolar transistor (IGBT)-based full controlled rectifier. The operation principles of three topologies for DC de-icing are analyzed, and the rectifier models of the three topologies are established, then the comparative research on the performances for three topologies, including rectifier performance, characteristics of harmonic and reactive power, power loss, economic cost, and extended function, is carried out. Furthermore, the simulations for three topologies to realize DC de-icing for a transmission line are done to verify the contrastive analysis results. Some conclusions are obtained. First, uncontrolled diode rectification has advantages on simple structure, low cost, easy to realize, and simply maintenance, so this topology is appropriate to be applied to DC de-icing of large capacity and long distance transmission line. Second, thyristor-based half controlled rectifier can smoothly regulate the output DC melting-icing voltage, and it can be expanded to Static Var Compensator (SVC), so it can be applied to DC de-icing of transmission line with the demand of reactive power compensation. IGBT-based full controlled rectifier has advantages on strong regulation ability of output voltage, and it can be used as power quality regulator when no icing. But it has the weakness of high cost, complicated control, and relatively low reliability. So it is preponderant for DC-icing of low capacity and short distance transmission line. Research conclusions are very significant to provide references for selection and design of DC de-icing engineering equipments.关键词
直流融冰/拓扑结构/整流电压/线路覆冰/特性分析Key words
DC de-icing/topology/rectified voltage/ice covering line/characteristics analysis分类
信息技术与安全科学
