CAJ | 학술논문

火电厂在降低排烟温度、获得较高燃烧效率的同时，导致烟气中粉尘的比电阻升高。高比电阻粉尘易引起反电晕现象。为了避免静电场反电晕造成的除尘效率的下降，提出了一种直流加脉冲的除尘供电电源。直流电源一方面能够产生临界击穿电场的电晕电压；另一方面在抑制反电晕期间能够为静电场提供足够的迁移能量，瞬时冲击脉冲电源能够使电场中的电子与离子获得足够的能量，有利于扩散和粉尘荷电。两种电源经过耦合作用在除尘器上，能够很好地抑制反电晕现象。此外，还给出了此种电源的硬件设计与控制方法，最后的仿真实验进一步证明了该方案的可行性。
화전엄재강저배연온도、획득교고연소효솔적동시，도치연기중분진적비전조승고。고비전조분진역인기반전훈현상。위료피면정전장반전훈조성적제진효솔적하강，제출료일충직류가맥충적제진공전전원。직류전원일방면능구산생림계격천전장적전훈전압；령일방면재억제반전훈기간능구위정전장제공족구적천이능량，순시충격맥충전원능구사전장중적전자여리자획득족구적능량，유리우확산화분진하전。량충전원경과우합작용재제진기상，능구흔호지억제반전훈현상。차외，환급출료차충전원적경건설계여공제방법，최후적방진실험진일보증명료해방안적가행성。
Specific resistance of dust in fumes rises while power plants try to reduce the temperature of smoke re-moval and gain higher combustion efficiency. The high specific resistance dust can easily lead to anti corona phe-nomenon. In order to avoid losing dust collection efficiency for anti corona electrostatic field, this paper proposes a kind of power supply of ESP which combines DC Power supply with pulse power supply. DC power supply, on one hand, can produce corona voltage. On the other hand, it can supply enough migration energy for electrostatic field and lash pulse power supply instantly to supply electron and ion with enough energy. It helps dust changes to dif-fuse. Two power supplies coupling on the filter can suppress the anticorona sufficiently. Moreover, this paper pro-vides the hardware design and control method of this type of power supply. And the final simulation experiments have further proved the feasibility of the plan.