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出 处:《电力系统保护与控制》2013年第6期123-127,共5页Power System Protection and Control
基 金:广东省教育部产学研结合项目(2011A090200074)
摘 要:随着分布式电源接入电网数量增加,分布式电源之间的协调对提高电网运行的可靠性和灵活性具有重要意义。目前分布式电源接入换流控制器间缺乏信息交互,很难实现协调控制。设计了一种基于IEC61850的新型换流控制器,增强换流控制器的网络功能,以满足分布式电源间协调控制的需要。分析了分布式电源接入的逻辑功能节点,建立了符合IEC61850分布式电源接入的对象模型。详细介绍了换流控制器基于TMS320F28335的控制核心,驱动及隔离、信号调理、网络通信和人机交互等关键模块的软硬件实现。通过试验测试,验证了换流控制器能够满足分布式电源并网控制的需要,并能实现不同厂家设备间的信息交互。Coordinated control between distributed generations (DGs) is extremely significant to improve the reliability and flexibility of the power system, with the increase in the number of grid-connected DGs. Lack of communicating information makes it difficult to be controlled coordinately between DGs. A novel controller with the enhanced Ethemet function of inverter is proposed, which satisfies the coordinated control of DGs. The communication models suitable for the DGs are proposed with the analysis of the logic nodes. The core controller based on TMS320F28335 of the inverter controller is introduced in detail, as well as the hardware and software implementation for the driver and isolate module, signal conditioning module, network service module, and man-machine interface module. The test results show that the inverter controller can satisfy the interconnection of DGs and the information interaction between the controllers of different manufactures.
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