High voltage DC power transmission converter station real-time monitoring system and its realizing method

The invention relates to a high-voltage direct-current transmission detecting system and relative method, wherein it is formed by data collector, server and user terminal; the server comprises a forward data server, a real-time data server, a communication manage server and a history data server; the user terminal displays variable data information and supply graph detecting operation; he collector converts the collected analogue signal into digit signal, via network to be sent to the forward data server; the forward data server processes and calculates out relative signal value, and transmits the data to the real-time data server; the real-time data server stores the digit signal value, according to the request of user terminal, to send displayed data to relative user terminal, or transmit the user operation command via forward data server to the operator; the operator will control the executer to complete the operation; the server has stable and reliable operation; the user interface is friend, with simple operation.