光伏并网逆变器检测平台的研制  

Development of Detection Platform for Grid-Connected Photovoltaic Inverters

作　　者：闫华光[1] 章欣[1] 杨湘江[1] 王鹤[1] 范滢[1] 蒋利民[1] 李涛永[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2011年第6期139-143,共5页Power System Technology

摘　　要：为保证光伏并网逆变器的性能及安全,研制了检测平台,分析了并网逆变器的测试方法和步骤,介绍了光伏并网逆变器检测平台的开发。整个检测平台由控制计算机、数据采集系统、RS 485和通用接口总线(general-purpose interface bus,GPIB)系统组成。检测平台由可编程的直流电源、交流电源和RLC负载分别模拟太阳能电池板、电网特性以及负荷特性。整个系统通过LabVIEW软件界面控制,由GPIB和RS 485总线实现仪器间的通信控制,提高了系统的自动化程度。该检测平台可用于光伏并网逆变器电气性能测试、保护功能测试、电磁兼容测试等。实践证明该系统结构配置合理、设备可靠、精度高。To ensure both performance and security of grid-connected photovoltaic inverters,a detection platform for grid-connected photovoltaic inverters is researched and developed;the testing method and procedures of grid-connected photovoltaic inverter are analyzed and the development course of this detection platform is described in detail.The detection platform consists of control computer,data acquisition system,RS 485 and general-purpose interface bus（GPIB） system.In this platform,the solar-cell panel is simulated by programmable DC source,the power grid characteristics of power grid by programmable DC source and the load characteristic by programmably controlled RLC load.The whole detection system is controlled by LabVIEW software interface,the communication among instruments is implemented by RS 485 and GPIB bus,thus the automation level of this platform is evidently enhanced.The proposed detection platform can be used in the electric performance testing of grid-connected photovoltaic inverters,testing of protection function,testing of electromagnetic compatibility（EMC） and so on.Practical application shows that the configuration of this detection platform is rational and reliable,and its detection results are accurate.

关 键 词：光伏并网逆变器 电网接口 孤岛保护 检测平台 

分 类 号：TM91[电气工程—电力电子与电力传动]