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发明公开
CN105162409A 分布式光伏并网模块化发电系统嵌入式防窃电装置 有权 转让

分布式光伏并网模块化发电系统嵌入式防窃电装置
摘要：
本发明公开了一种分布式光伏并网模块化发电系统嵌入式防窃电装置。目前基于微处理器的防窃电技术存在使用不便及可靠性差的缺陷。本发明包括直流模块防窃电计算通讯单元和交流模块防窃电计算通讯单元，根据相应的分布式光伏并网模块化发电系统进行设计和安装；直流模块防窃电计算通讯单元的报警电路在接收到来自RS485通讯接口的任何一个窃电报警信号后立即进行指示灯及蜂鸣报警；当判断发生窃电行为或接收到来自RS485通讯接口的任何一个窃电报警信号后，交流模块防窃电计算通讯单元立即进行指示灯及蜂鸣报警。本发明能识别分布式光伏并网模块化发电系统是否存在窃电行为，同时在发生窃电行为时能准确计算窃电量并进行报警处理。
摘要（英）：

The invention discloses a distributed photovoltaic grid-connected modularized power generation system embedded electricity stealing prevention device. The existing microprocessor-based electricity stealing prevention technology has defects of inconvenient use and poor reliability. The device of the invention comprises a DC module electricity stealing prevention calculation communication unit and an AC module electricity stealing prevention calculation communication unit, and design and mounting are carried out according to the corresponding distributed photovoltaic grid-connected modularized power generation system. After receiving any electricity stealing alarming signal from an RS485 communication interface, an alarming circuit of the DC module electricity stealing prevention calculation communication unit instantly carries out lamp indication and buzzer alarm. After an electricity stealing behavior is judged to happen or any one electricity stealing alarming signal from the RS485 communication interface is received, the AC module electricity stealing prevention calculation communication unit instantly carries out lamp indication and buzzer alarm. Whether the electricity stealing behavior happens to the distributed photovoltaic grid-connected modularized power generation system can be recognized, and when the electricity stealing behavior happens, the electricity stealing amount can be accurately metered, and alarming processing is carried out.

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