Rotor coupling double-generator parallel motor generator set complete set and protection control system

Abstract

The invention relates to a rotor coupling double-generator parallel motor generator set assembly and protection control system. The system comprises a comprehensive protection system device; the system comprises a single-machine starting logic control module, a single-machine stopping logic control module and a single-machine excitation / field suppression logic control module. The single-machine starting logic control module controls the rotor coupling double-machine parallel motor generator set to execute single-machine starting; the single-machine outage logic control module controls the rotor coupling double-machine parallel motor generator set to execute single-machine outage; and the single-machine excitation / de-excitation logic control module controls the rotor coupling double-machine parallel motor generator set to execute excitation or de-excitation. The system control function is achieved through logic control of the comprehensive system device, the reliability of system operation is improved, the equipment investment is saved, faults can be effectively recognized, and the troubleshooting efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of electric power systems, and more specifically relates to a rotor-coupled double-machine parallel motor-generator assembly and protection control system. Background technique [0002] Rotor-coupled double-machine parallel motor-generator sets are widely used in nuclear power plants, ship power systems and other occasions that require high reliability of power supply. Since the two-machine parallel system not only has the stators parallel, but also the rotor excitation windings are coupled, its protection and control system is very complicated in the existing design, and the number of protection and control system equipment is large, the cost is high, and the reliability is low. At the same time, the past system design has incompleteness and imperfection, there are dead zones for some faults, and there is no fast protection for some near-zone faults. Contents of the invention [0003] The technical probl...

AI Technical Summary

Problems solved by technology

Due to the dual-machine parallel system, not only the stators are parallel, but the rotor excitation winding is also coupled, the protection and control system is very complicated in the existing design, the number of protection and control system equipment is large, the cost is high, and the reliability is low

At the same time, the past system design has incompleteness and imperfection, there are dead zones for some faults, and there is no fast protection for some near-zone faults, etc.

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