Method for realizing voltage measurement abnormity detection in direct-current station control system
A technology of DC voltage and station control system, applied in the direction of measuring current/voltage, measuring device, measuring electrical variables, etc., can solve the problems of poor reliability and low efficiency, and achieve accurate judgment results, guarantee reliability, and strong engineering usability. Effect
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[0024] Such as figure 1 , figure 2 As shown, a method for detecting abnormal voltage measurement in a DC station control system includes the following steps:
[0025] A. Obtain the pole 1 DC voltage UdH_1 and pole 2 DC voltage UdH_OP_2 sent by pole 1 to the DC station control system, and the pole 2 DC voltage UdH_2 and pole 1 DC voltage UdH_OP_1 sent by pole 2 to the DC station control system, of which pole 1 and Pole 2 is the opposite DC pole, and the DC voltage of this pole will be sent to the opposite pole between pole 1 and pole 2;
[0026] B. Set two threshold values in advance, set the amplitude of the measurement system within the normal error range as the value K, when the two valve group trigger pulses of the DC pole and the pole are both in the enabled state, select the corresponding threshold value 2K, otherwise the selection threshold is K;
[0027] C. Calculate the absolute value of the difference between pole 1 DC voltage UdH_1 and pole 1 DC voltage UdH_OP_...
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