Design, Simulation and Prototype Construction of a Pulsed Power Source for Use in Electrostatic Precipitators

Subject Areas : system

Mohammad Reza Memar ¹ , Amir Baktash ²

1 - Najafabad Branch, Islamic Azad University
2 - Department of electrical engineering., Najafabad Branch, Islamic Azad University, Najafabad, Iran

Received: 2022-08-24 Accepted : 2022-11-14 Published : 2023-03-01

Keywords: pulse power, saturable inductors, magnetic switches, pulse magnetic compressor, electrostatic filters,

Abstract :

Among the common structures of filters, electrostatic filters have been very important in the indu stry due to their various advantages. Pollutant separation in these filters happens by charging them and absorbing them in the electric field. Using a high-amplitude dc voltage to create a strong field and as a result discharging the corona and charging the pollutant particles are the basis of this sys tem. However, the use of pulsed voltages with high amplitude can bring better efficiency and lower energy consumption. For this reason, in this article, a pulsed voltage source for starting an ele ctrostatic filter is investigated. The existing pulse structures have been investigated and by combining two of them, a new structure including the energy storage capacitor network and a magnetic switch to produce the required pulse has been presented. In this structure, a saturable inductor plays the role of a switch, which can overcome the voltage limitations of semiconductor switches and cover any voltage level. The proposed structure is analyzed and simulated for a specific example.