Design And Simulation Of Marine Gas Turbine Plasma Ignition System Power Supply

In the actual work process of a gas turbine, it is often due to various reasons frequentlymobilize units, leading a large amount of light fuel consumption, maintenance costs willincrease. Therefore, in recent years, people have been looking for with poor quality fuel asgas turbine fuel, seeking low-cost but can also efficiently ignite the fuel, start the unit normaloperation. The level of efficiency of the combustion chamber has become a critical factor.Plasma ignition came into being as a new technology; it overcomes many of the drawbacks ofthe conventional spark ignition, with unparalleled advantages. The ignition discharge energy,full of the combustion process, lower environmental conditions require. It is a new andeffective way of ignition. The performance of power system design is a key prerequisite forstable and reliable operation of the plasma ignition system, developed with importanttheoretical value and practical guiding significance test of high reliability, high power, andsmall volume of the DC power supply system for plasma ignition device.This article is a detailed analysis of the study of the continuous arc plasma ignitionpower supply system to use. First, because of the demand for electricity bindingcharacteristics of the design of the continuous arc plasma and plasma arc, the arc power andarc main circuit are by means of combination. The design of the main circuit of a600WHalf-Bridge DC switching power supply scheme based on IGBT, overcomes the defects ofmain circuit of arc on large resistor consumes most energy, greatly improving the efficiency ofpower supply. And according to the characteristic curve of general arc fitting out load,formulates the design index of main circuit, and then the main circuit of power supply systemfor parameters design and simulation. Secondly, using the new high frequency pulse arcignition circuit for arc ignition circuit of the power supply system, and the capacitor energystorage part and the LC oscillation period are analyzed mathematical and simulation, the pulsehigh voltage waveform output end arc. Simulation of arc ignition circuit pulse charging maincircuit switching frequency and consistency, thus eliminating the need for a current sensorlink, so that the whole power supply system is more compact and reasonable. The main circuitpart increases the electromagnetic compatibility design, and the absorption circuit protectionswitch tube was simulated, verified by the protection circuit can effectively inhibit the switch voltage spikes tube, prevent the switch tube damage. In order to make the circuit more safeand reliable, power system using pulse width modulation (PWM) technology the feedbackvoltage closed loop control for the power supply, and joined the over-current protection,over-voltage protection, under-voltage protection circuit, protection circuit.The power modulecircuit simulation and the results were analyzed using PSPICE software, select the mostappropriate components and parameters of the power system. Subsequent tests can also beconducted on the basis of the simulation results, the results of this paper is a valid trialcomparative reference.In the continuous arc plasma ignition system ignition test, the simulation results in thispaper are effective reference test.