Active power control device and processing method for speed regulator of giant water-turbine generator set

Abstract

The invention relates to an active power control device and a processing method for a speed regulator of a giant water-turbine generator set, the active power control device comprises a PLC (Programmable Logic Controller) A, a PLC B, a power transmitter A and a power transmitter B, wherein the power transmitter A and the power transmitter B are respectively connected with the input ends of the PLC A and the PLC B, and the input ends of the PLC A and the PLC B are electrically connected with a power transmitter C. A two-out-of-three comparative analysis method is adopted for values of three sets of power transmitters, so that active power value fault judgment and processing logic is optimized, the active power fault of the speed regulator can be automatically diagnosed in real time, active power warning and judgment of serious fault signals are achieved, an occurrence rate of a single sensor element fault and an active power serious fault is reduced, the redundancy configuration of the active power transmitter of the speed regulator is realized, and the redundancy and the reliability of an active power acquisition signal are improved.

Description

Technical field [0001] The present invention relates to the field of water turbine speed regulator parameter adjustment, and specifically, a gauge power control device and processing method of giant water wheel generator set governor. Background technique [0002] The active power is one of the main parameters of the control of the turbine speed, and its stability and reliability of its sampling value directly affect the security and stable operation of the unit. Therefore, the governor has power monitoring is very necessary and is reliable and accurate. [0003] At present, the governor only configures a power transmitter. The two-set PLC controller share a powerful power signal, and the two controllers cannot collect signals, and there is no third-party data to determine the comparative analysis, each judges themselves collection. The sensor value is used as a control parameter or a fault judgment value. It controls a single control policy, there is no need to take advantage of...

AI Technical Summary

Problems solved by technology

[0003] At present, the governor is only equipped with one set of power transmitter, and the two sets of PLC controllers share one active power signal. The two sets of controllers cannot collect signals from each other, and there is no third-party data for comparison and analysis. Each judges and collects by itself. The value of the sensor is used as the control parameter or fault judgment value, and its control strategy is single. It cannot make full use of the two sets of sensor data, and cannot truly judge the real data collected by the sensor, and at the same time cannot truly perform fault judgment.

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