Synthetic regulating apparatus for digital hydro-turbo generator set and control method thereof

Abstract

The invention provides a digital comprehensive regulation device for hydroelectric generating sets, and a control method thereof. The device comprises a controller, wherein the controller is respectively connected with a Hall current sensor, a Hall voltage sensor, a current conditioning circuit, a voltage conditioning circuit A and a voltage conditioning circuit B through analog input interfaces, and is respectively connected with a shaping circuit A, a shaping circuit B, a circuit-breaker auxiliary contact and a shaping circuit C through high-speed digital input interface; the controller is respectively connected with a pulse amplification circuit and a circuit breaker through high-speed digital output interfaces; and the controller is also respectively connected with a digital mixing module and an analog input module. The device can control and regulate the dynamic performances of generating sets by measuring and calculating the parameters of power networks and generators. The device integrates synchronization, speed regulation and excitation, has the characteristics of high control performance, short response time, programming easiness, debugging convenience, high execution speed and the like, and is particularly applicable to the comprehensive control over medium / small-size hydroelectric generating sets.

Description

technical field [0001] The invention belongs to the technical field of electric power system automatic control, and relates to an adjusting device suitable for small and medium-sized hydroelectric generating sets, in particular to a digital integrated adjusting device for hydroelectric generating sets, and also relates to a control method of the device. Background technique [0002] The turbine speed governor, excitation device and automatic quasi-synchronization device are important control equipment for hydroelectric generating units. The turbine governor is mainly used to adjust the frequency and active power of the generator, and maintain the frequency of the power system within the specified range; the excitation device is mainly used to adjust the voltage and reactive power of the generator; the automatic quasi-synchronization device adjusts the Change the voltage and frequency of the generator with the given value of the excitation device, and when the synchronous con...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a digital comprehensive regulating device for hydroelectric generating sets, which is used for the control of small and medium-sized hydroelectric generating sets, and solves the complex structure, The shortcomings of low reliability and poor performance shorten the response time of the control system and improve the real-time and reliability of the system

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