特高压半波长交流输电线路稳态电压特性-电网技术.pdfVIP

第 35 卷 第 9 期 电 网 技 术 Vol. 35 No. 9 2011 年 9 月 Power System Technology Sep. 2011 文章编号：1000-3673 （2011 ）09-0033-04 中图分类号：TM 734 文献标志码：A 学科代码：470·4054 特高压半波长交流输电线路稳态电压特性 张志强，秦晓辉，王皓怀，徐征雄，张东霞，林集明，郑健超 （中国电力科学研究院，北京市海淀区 100192 ） Steady State Voltage Characteristic of UHV Half-wavelength AC Transmission Line ZHANG Zhiqiang, QIN Xiaohui, WANG Haohuai, XU Zhengxiong, ZHANG Dongxia, LIN Jiming, ZHENG Jianchao (China Electric Power Research Institute, Haidian District, Beijing 100192, China) ABSTRACT: Due to its vast application prospect in China and 电送到负荷中心，把半波输电作为十分有竞争力的 the features of long distance power transmission and high 备选方案进行了研究[9-10] ；韩国也研究通过使用半 available transmission capacity (ATC), it is significant for the 波输电把西伯利亚的水电送至本国[11] 。 power system planning and operation in China to research 我国电力发展战略中，远距离、大容量的输电 steady state voltage characteristic of half-wavelength AC 方式不可避免，西部的能源基地到沿海负荷中心距 transmission (HWACT). Based on the theory of electric circuit, the line parameter model for HWACT line is derived, and in 离大约为 3 000 km[12-14]，输电距离恰好接近半波输 two aspects, namely the theory of incident and reflected wave 电要求的工频半波长范围，因此，可以考虑将半波 and the theory of reactive power, the steady state voltage 输电技术作为这些大容量电力送出的一种方案进 characteristic of HWACT line is analyzed. Finally, the voltage 行可行性研究。本文从入射波、反射波理论与无功 distribution along HWACT line is simulated by PSD software, 功率 2 个方面分析了半波输电线路稳态电压特性， thus the results of theoretical analysis are verified. 并进行了仿真