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电网技术  2011 

光伏并网逆变器检测平台的研制

, PP. 138-142

Keywords: 光伏并网逆变器,电网接口,孤岛保护,检测平台

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Abstract:

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、RS485和通用接口总线(general-purposeinterfacebus,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RS485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。

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