光伏逆变器并网信号检测系统设计  

Design of Grid-Connected Signal Detection System of Photovoltaic Inverter

作　　者：王文 杨宝峰 韩俊飞[3,4] 张忠 王志文 WANG Wen;YANG Baofeng;HAN Junfei;ZHANG Zhong;WANG Zhiwen(School of Electric Power,Inner Mongolia University of Technology,Hohhot 010080,China;Xuejiawan Power Supply Bureau,Ordos 010300,China;Inner Mongolia Power Research Institute,Hohhot 010020,China;Inner Mongolia Enterprise Key Laboratory of Smart Grid Simulation of Electrical Power System,Hohhot 010020,China;Baotou Power Supply Bureau,Baotou 014030,China)

机构地区：[1]内蒙古工业大学电力学院,呼和浩特010080 [2]薛家湾供电局,内蒙古鄂尔多斯010300 [3]内蒙古电力科学研究院,呼和浩特010020 [4]内蒙古自治区电力系统智能化电网仿真企业重点实验室,呼和浩特010020 [5]包头供电局,内蒙古包头014030

出　　处：《内蒙古电力技术》2021年第6期6-10,共5页Inner Mongolia Electric Power

基　　金：内蒙古自治区科技重大专项“工业园区多元用户互动的配用电系统关键技术研究与示范”(2019ZD027);内蒙古工业大学科学研究项目“柔性化LCC换流技术研究”(BS2021011)。

摘　　要：针对并网信号采集、处理时,通过霍尔元件采样得到的信号无法满足数字信号处理(DSP)片内A/D采样模块采样电压要求的问题,设计了光伏逆变路并网信号检测系统。该系统可通过调理电路把霍尔元件采集的信号调理到DSP片内A/D采样模块采样的电压范围内。介绍了光伏并网发电逆变器中DSP28335内A/D采样模块的电压信号采样和调理电路的设计,并通过仿真验证了所设计的信号采样与调理电路可以满足DSP28335内A/D采样模块采样电压与响应速度的要求。In order to solve the problem that the signal sampled by Hall element cannot meet the sampling voltage requirements of A/D sampling module in Digital Signal Processing(DSP) during the acquisition and processing of grid-connected signal, a grid-connected signal detection system of photovoltaic inverter is designed. The system can adjust the signal collected by Hall element to the voltage range sampled by A/D sampling module in DSP chip by conditioning circuit. This paper introduces the design of voltage signal sampling and conditioning circuit of A/D sampling module in DSP28335 of photovoltaic grid-connected power inverter, and verifies that the designed signal sampling and conditioning circuit can meet the requirements of sampling voltage and response speed of A/D sampling module in DSP28335 through simulation.

关 键 词：DSP A/D采样模块 采样电路 调理电路 光伏逆变器 

分 类 号：TM464[电气工程—电器] TP311[自动化与计算机技术—计算机软件与理论]