波动电源及冲击性负荷接入电网电能质量评估分析  

Analysis of Power Quality Assessment of Fluctuating Power Sources and Impulse Loads Connected to the Power Grid

作　　者：赵普志 侯冰 王佩 李骑 李东阳[3] ZHAO Puzhi;HOU Bing;WANG Pei;LI Qi;LI Dongyang(State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830000,China;State Grid Xinjiang Turpan Power Supply Company,Turpan 838000,China;Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]国网新疆电力有限公司,新疆乌鲁木齐830000 [2]国网吐鲁番供电公司,新疆吐鲁番838000 [3]西南交通大学,四川成都611756

出　　处：《电工技术》2025年第6期113-115,共3页Electric Engineering

摘　　要：牵引负荷、多晶硅厂负荷类的非线性冲击负荷接入电网,会引起电网电压偏差、谐波等电能质量问题,进而造成邻近用户脱网,此外,兼顾经济效益和无环境污染的新能源场站大量接入电网,波动电源的接入同样严重影响电网安全运行,因此对电网中波动电源及非线性冲击负荷进行电能质量评估是有必要的。以某电网结构为例开展供电质量综合测试,并参考国家标准对波动电源及非线性冲击负荷的电压偏差、谐波指标进行定量评估分析,为电网稳定运行提供可靠数据支撑。Non-linear impulse loads,such as traction loads and polysilicon plant loads,are connected to the grid,which may cause power quality problems such as grid voltage deviation and harmonics,which in turn may cause adjacent users to go off-grid.In addition,taking into account the economic benefits and no environmental pollution of new energy field station access to the grid in large quantities,fluctuating power access also seriously affect the safe operation of the grid.Therefore,it is necessary to assess the power quality of fluctuating power sources and nonlinear impact loads in the power grid.This paper takes a certain grid structure as an example to carry out a comprehensive test of power supply quality,and with reference to the national standards,quantitative assessment and analysis of voltage deviation and harmonic indexes of fluctuating power sources and nonlinear impact loads are carried out to provide reliable data support for the stable operation of the grid.

关 键 词：冲击性负荷 波动电源 谐波 电能质量 

分 类 号：TM714[电气工程—电力系统及自动化]