A method of controlling a hydroelectric generator

Abstract

The invention discloses a control method for a hydroelectric generator. The control method integrates the control function and the protection function, various state data of input and output of a hydroelectric generating set can be detected automatically, and all the links are controlled according to the normal procedure sequence. The operating procedure of the hydroelectric generating set can be controlled automatically only in combination with a small number of parts of a middle relay and a contactor in the hydroelectric generating set. A hydroelectric generating set control system adopting the method as the core can achieve the automatic power on function, the automatic voltage buildup function, the automatic frequency adjustment and voltage adjustment functions, the automatic quasi-synchronizing parallel function and the automatic active and inactive adjustment function, the normal halt function and the abnormal shutdown function can be achieved, and the protection and control functions on the voltage, the current, the frequency and the like can be achieved as well. After the system is electrified, the system enters the protection and the monitoring state, and the normal operation of the generating set is reliably guaranteed. According to the method, remote digital management is achieved through the Internet.

Description

Technical field [0001] The invention relates to the technical field of generator intelligent numerical control, in particular to a control method of a hydroelectric generator. Background technique [0002] For traditional old-fashioned power generation equipment, mechanical control systems are currently used. The disadvantages of mechanical control systems are: [0003] 1. The failure rate is high. The current relay used for current protection and the voltage relay used for voltage protection often make mistakes and mistakes in protection. The protection function is very few. All of them are pointer meters with large reading errors; [0004] 2. The power factor is adjusted manually at any time, and manual operation is labor intensive; [0005] 3. There is no protection function for accidents such as runaway, lightning strike, excessive bearing temperature, and carbon brush (brush unit) fire caused by the power outage; [0006] 4. Semi-automatic power generation equipment using single-...

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Problems solved by technology

[0003] 1. The failure rate is high. The current relay used for current protection and the voltage relay used for voltage protection often make mistakes and errors in protection. There are very few protection functions. All pointer instruments are used, and the reading error is large;

[0004] 2. The power factor is adjusted manually at any time, and manual operation is labor-intensive;

[0005] 3. There is no protection function for accidents such as flight, lightning strike, excessive bearing temperature, carbon brush (brush unit) fire and other accidents caused by grid power outage;

[0006] 4. The semi-automatic power generation equipment using single-chip microcomputer has the disadvantages that it cannot be unattended, cannot be remotely controlled, and cannot be remotely monitored.

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