新能源发电低电压穿越的VSG实验平台研制  

Design of VSG testbed for LVRT of renewable energy

作　　者：周稳[1] 毕大强[2] 戴瑜兴[1] 成林俞 熊书华[1] ZHOU Wen BI Daqiang DAI Yuxing CHENG Linyu XIONG Shuhua(Zhejiang Province Engineering Laboratory of Electrical Digital Design Technology,Wenzhou University Wenzhou 325035,China State Key Lab of Power Systems,Department of Electrical Engineering, Tsinghua University,Beijing 100084,China)

机构地区：[1]温州大学电气数字化设计技术浙江省工程实验室,浙江温州325035 [2]清华大学电机系电力系统国家重点实验室,北京100084

出　　处：《电力自动化设备》2017年第1期107-111,共5页Electric Power Automation Equipment

基　　金：国家高技术研究发展计划(863计划)资助项目(2012AA051201)~~

摘　　要：针对低电压穿越(LVRT)试验所需电压跌落发生器(VSG),提出一种基于LabVIEW上位机控制的变压器形式VSG设计方法。重点分析了所研制VSG实验平台的设计原理,通过LabVIEW设计上位机与本地VSG控制器进行通信控制,VSG控制器采用STM32F103作为主控芯片构建控制系统。VSG主体结构主要包括抽头变压器、继电器与限流电阻。研制的实验平台可实现上位机安全可靠操作VSG,能精确设置电压跌落持续时间,模拟不同跌落深度的电网故障电压,满足LVRT试验要求。实验结果表明所研制VSG实验平台的有效性与可靠性。A method of transformer-type VSG（Vohage Sag Generator） design based on the LabVIEW control system is proposed for the LVRT（Low Voltage Ride Through） test and the design principle of the VSG testbed is analyzed. The control of communication between the supervisory computer and the local VSG controller is designed by LabVIEW and the VSG control system adopts STM32F103 as its master control chip. The main structure of VSG includes tapped transformer,relay and current-limiting resistor. In order to meet the requirements of LVRT test,the developed testbed operates the VSG safely and reliably via the supervisory computer,sets the voltage sag duration accurately,and simulates the grid fault voltage with different drop depths. The experimental results validate the effectiveness and reliability of the designed VSG testbed.

关 键 词：电压跌落发生器 通信 控制 LAB VIEW 低电压穿越 可再生能源 

分 类 号：TM712[电气工程—电力系统及自动化]