Method for undisturbed switching between double power sources of hydraulic station of refuse incinerator

Abstract

The invention discloses a method for undisturbed switching between double power sources of a hydraulic station of a refuse incinerator. A plurality of super-capacitors are used as energy storage elements. The problem that during switching by a commonly-used switch for the double power sources, continuous control power cannot be output is solved. By means of a power failure detection signal of double groups of mains supply, a corresponding control program is designed in the PLC control system, and heavy-load starting or acceleration of a motor is avoided in a power source switching period; according to actual power source voltage class demand, a modularized equalization circuit is used for guaranteeing that the super-capacitors which are connected in series are charged equally, and the service life of the super-capacitors is prolonged.

Description

Technical field [0001] The invention belongs to the technical field of garbage power generation control, and relates to a method for undisturbed switching of dual power sources of a hydraulic station of a garbage incinerator. Background technique [0002] As the contradiction between increasing garbage and limited processing capacity continues to intensify, power generation through garbage incineration is the main method to achieve garbage reduction, recycling and harmlessness. Among various waste incineration technologies, mechanical grate furnace incineration technology will be the mainstream incineration technology for domestic waste at present and in the future. The garbage enters the incinerator through the movement of the feeder, and then the full mixing and combustion of the garbage and the air are realized through the reciprocating motion of the grate. With the help of the boiler and the turbo generator, the conversion of chemical energy → thermal energy → electric energy...

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the defects in the prior art, the present invention aims to simplify the existing control power supply scheme during the switching period of the dual power supply, and effectively solve the problem that when UPS is used as the control power supply during the switching period of the dual power supply, the problem of being unable to charge due to power loss ; With the help of power-off detection and contact signal, through program control, reduce the motor speed-up or start-up inrush current, improve the cost performance, reliability and maintainability of the power system, and reduce the weight and volume of the equipment

The present invention proposes a method for non-disturbance switching of dual power sources in the hydraulic station of a waste incinerator. The method uses a supercapacitor as an energy storage element to solve the problem that a common dual power source switch cannot output continuous control power during the switching period; Power-down detection signal, corresponding control program is designed in the PLC control system to avoid heavy-load start-up or speed-up of the motor during power switching; according to the actual power supply voltage level requirements, a modular equalization circuit is used to ensure that multiple super motors in series Capacitor balance charging to prolong capacitor life

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