光伏逆变器低电压穿越检测装置对比试验分析  

Comparative Test Analysis on Low Voltage Ride through Testing Device for Photovoltaic Inverters

作　　者：张军军[1] 郑飞[1] 张晓琳[1] 董颖华[1] 孙耀杰[2] 马磊[2] 

机构地区：[1]中国电力科学研究院,江苏南京210003 [2]复旦大学光电源研究所,上海200433

出　　处：《电网与清洁能源》2015年第5期84-88,共5页Power System and Clean Energy

基　　金：国家电网公司科技项目(NY71-13-036)~~

摘　　要：依据我国低电压穿越检测技术规定与测试规程,采用2种不同类型的低电压穿越检测装置对光伏逆变器开展不同工况下低电压穿越测试,对比研究2种检测装置性能,得出结论:2种检测装置均能模拟低电压穿越曲线簇,实现低电压穿越测试功能;模拟电网性检测装置响应时间和稳态跌落精度等稳态特性模拟上明显优于阻抗分压型低电压穿越检测装置,但是在对电网暂态特性模拟上阻抗分压型检测装置更优。According to the low voltage ride through testing technology and testing regulations,a comparative analysis is done on the sag accuracy of both the impedance divider type and simulation grid type testing devices based on testing the same type of photovoltaic inverter low voltage ride through under different conditions. The analysis concludes: both the two detection devices can simulate the low voltage curve cluster,but the simulation grid type testing device is better than the impedance divider type testing device in the simulation of steady state characteristics,such as response time,steady sag accuracy and so on. However, the impedance divider type testing device is better in the simulation of the power grid transient characteristics.

关 键 词：光伏逆变器 低电压穿越检测 阻抗分压型 模拟电网型 

分 类 号：TM464[电气工程—电器] TM615