Semi-closed loop test method for voltage reactive automatic control system

Abstract

A semi-closed loop test method for a voltage reactive automatic control system comprises the S01 stage of displaying a control window, the S02 stage of judging whether an operation order is executed or not, the S03 stage of inputting operator information, the S04 stage of judging whether the information is correct or not, the S05 stage of confirming operation rationality, the S06 stage of issuing the operation order, the S07 stage of judging whether the execution operation is correct or not, the S08 stage of judging whether the number of times of movement rejection exceeds the standard number of times, the S09 stage of giving up the operation order, the S10 stage of delaying for a period and the S11 stage of closing an operation window. The semi-closed loop test method for the voltage reactive automatic control system aims at guaranteeing safe production to the maximum degree, and a semi-closed loop test link is added, namely a manual intervention link is added, so that the method better guarantees the accuracy and the safety of the test process, and compared with an open loop test method and a closed loop test method, the semi-closed loop test method for the voltage reactive automatic control system is more convenient to implement and capable of achieving the set test target more easily.

Description

technical field [0001] The invention belongs to the field of automatic control of high-voltage electric power, and relates to a semi-closed-loop test method used in an automatic control system of voltage and reactive power. Background technique [0002] In order to improve the reactive power and voltage management level of Tianjin's 220kV main network and strengthen the optimal control of system reactive power and voltage, the automatic voltage and reactive power control (AVC) system was gradually added to the 220kV substation on December 1, 2010. Whether the access of a new system can ensure the stable operation of the main station monitoring system has always been a concern for us, so it is particularly important to complete the AVC debugging work under the premise of ensuring production safety. At present, the AVC system that has been put into operation only uses two test methods to test the correctness of the strategy, that is, open-loop test and closed-loop test. Both m...

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Problems solved by technology

At present, the AVC system that has been put into operation only uses two test methods to test the correctness of the strategy, that is, open-loop test and closed-loop test. Both methods have certain security risks: the open-loop test cannot find policy loopholes in time; It is not easy to attract the attention of the operating personnel. If the operating personnel rely too much on the program, once there is a problem with the strategy, the control command has been issued, which is an irreversible problem, which may easily cause reactive power and voltage failure.

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