Charging control and protection device of gas turbine

Abstract

The invention discloses a charging control and protection device of a gas turbine. The device comprises a differential protector and an excitation adjuster, wherein the differential protector is provided with a first input port, a first output port and a judging control unit, the first input port is connected with a power input terminal of a power generator of the gas turbine, the first output port is connected with a power storage unit, the judging control unit is arranged between the first input port and the first output port, the judging control unit is used for controlling the engaging and disengaging of the first input port and the first output port according to the comparison result of the output voltage of the power generator and the residual voltage of the power storage unit, and the excitation adjuster is used for connecting a power output terminal of the power generator and an excitation coil of the power generator so as to control the output voltage of the power generator to supply power for the excitation coil of the power generator. The device has the advantage that the power storage unit is charged by the self power generator of the gas turbine, the consumed power of the power storage unit can be timely supplemented, and the charging circuit is timely cut off, so the reverse charging of the power generator by the power storage unit is avoided, the power generator is protected, and the over-charging of the power storage unit is prevented.

Description

technical field [0001] The invention relates to the field of gas turbine control, in particular to a charge control and protection device for a gas turbine. Background technique [0002] Ground gas turbines can be used as power for armored vehicles and small ships, and the distributed energy system composed of the core mechanism has broad application prospects in the fields of electric power, petroleum, chemical industry, metallurgy, ships, and railway locomotive power. A certain type of gas turbine needs to use a battery as a power source during use, so as to meet the needs of rapid starting and loading without external power supply. However, the capacity of the existing storage battery is limited, especially the gas turbine needs to be discharged with a large current during the starting process, so the storage battery needs to be recharged in time. In the prior art, gas turbine batteries are all float-charged. If there are no charging control and protection measures, on t...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a charging control and protection device for a gas turbine, so as to solve the technical problems in the existing gas turbine that the storage battery is not charged in time, which leads to starting failure and overcharging, which causes the service life to be damaged.

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