Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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地方电网线损分析及降损规划

来源:电工电气发布时间:2016-08-01 13:01 浏览次数:6
地方电网线损分析及降损规划
 
刘航1,沈天时1,李珂2,倪俊康1,刘崇新1
(1 西安交通大学 电气工程学院,陕西 西安 710049;
2 陕西省地方电力(集团)有限公司,陕西 西安 710061)
 
    摘 要:介绍了中低压电网电压质量及线损计算方法,分析了典型35 kV 输电线路的电压分布及10 kV 配电网电量损耗。采用牛顿拉夫逊算法、等值电阻法,计算了陕西某地区的电压分布及线损,并针对线损的影响因素进行了研究,提出了相应的降损方案,该方案对中低压配电网的改造具有一定的参考意义。
    关键词:输配电网;电压平衡;无功优化;线损;降损
    中图分类号:TM714     文献标识码:A     文章编号:1007-3175(2016)07-0047-05
 
Line Loss Analysis and Reducing Plan in Local Power System
 
LIU Hang1, SHEN Tian-shi1, LI Ke2, NI Jun-kang1, LIU Chong-xin1
(1 School of Engineering, Xi’an Jiaotong University, Xi’an 710049, China;
2 Shanxi Regional Electric Power Group Co., Ltd, Xi’an 710061, China)
 
    Abstract: introduction was made to the calculation method of voltage and line loss in medium and low voltage electrical network. Analysis was made to the voltage distribution of typical 35 kV transmission lines and the power loss of 10 kV distribution network. This paper used Newton-Raphson algorithm and the method of equivalent resistance to compute voltage distribution and line loss in a certain region of Shaanxi. In allusion to the factors of line loss, the corresponding loss reduction scheme was proposed. The scheme has reference significance for medium and low voltage electrical network transform.
    Key words: transmission and distribution network; voltage balance; reactive power optimization; line loss; loss reduction
 
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