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发明公开
CN107579537A 柔性直流环网的过负荷保护方法及装置 无效 - 撤回

柔性直流环网的过负荷保护方法及装置
摘要：
本发明公开了一种柔性直流环网的过负荷保护方法，包括：在接收到水冷系统发送的降负荷请求指令时，按照预设斜率降低有功功率，得到降低后的有功功率，按照预设斜率降低无功功率，得到降低后的无功功率；根据降低后的有功功率生成有功功率指令，根据降低后的无功功率生成无功功率指令；根据有功功率指令和无功功率指令，降低换流器的桥臂的电流绝对值。本发明同时还公开了一种柔性直流环网的过负荷保护装置。
摘要（英）：

The invention discloses an over-load protection method for a flexible direct-current looped network. The over-load protection method for the flexible direct-current looped network comprises the following steps: when receiving a load down request command transmitted by a water-cooling system, reducing active power according to preset slope to obtain reduced active powder; reducing reactive power according to preset slope to obtain reduced reactive power; generating an active power command according to the reduced reactive power; generating a reactive power command according to the reduced reactive power; and reducing a current absolute value of a bridge arm of a current converter according to the active power command and the reactive power command. Meanwhile, the invention further disclosesan over-load protection device for a flexible direct-current looped network.

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