Analysis of the Pulsed Plasma Reactor Impedance For DeSOx and DeNOx

概要

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In this study, the impedance characteristics of the wire-plate pulsed plasma reactor for deSOx and deNOx were investigated. The experiments were carried out with a small size reactor (15 Nm3/h) and a prototype reactor (2000 Nm3/h, 0.5 MW) using a rotary spark gap switch and magnetic pulse compression (MPC) modulator, respectively. The impedance characteristics of the reactor were mainly varied by varying the charge voltage, wire length and wire-plate distance. With increasing charge voltage and wire length, the reactor impedance was decreased. From these experiments, the best condition for the impedance matching between the pulse generator and the reactor was achieved. In addition, we performed an analysis of the nonlinear reactor impedance on the basis of results of the experiment and electromagnetic transients program (EMTP) study. From these, we found that even though the electric equivalent circuit of the reactor may be described by a nonlinear resistance in parallel with a varying capacitance, the reactor impedance could be approximately analyzed using the equivalent resistance value of the flat zone and the reactor’s initial capacitance.
2001-02-28