摘要
孤岛检测是光伏并网逆变器必备的功能之一。孤岛检测技术决定孤岛检测性能。介绍了一种简单且易于实现的孤岛检测方法——滑动频率偏移(SMS)法,并将该方法成功应用到一台100 kW光伏并网逆变器中。孤岛性能检测试验结果表明,SMS法能够快速、准确地检测孤岛状态的发生。
Islanding detection is a mandatory function for photovoltaic grid-connected inverter, and the islanding detection strategy decides the performance of the islanding detection. An islanding detection slip-mode frequency shift（SMS） method which was simple and easy to implement was described. This paper applied the SMS method to a 100 kW photovoltaie grid-connected inverter successfully for testing the anti-islanding capability. The islanding performance test shows that the SMS method can quickly and accurately detect the occurrence of island states.
出处
《低压电器》
2014年第4期37-39,共3页
Low Voltage Apparatus
关键词
滑动频率偏移法
孤岛检测
光伏并网逆变器
盲区
slip-mode frequency shift （SMS）
islanding detection
photovoltaic grid-connectedinverter
dead zone
