TBSC-TCR Compensator Simulation: A New Approach in Closed Loop Reactive Power Compensation of Dynamic Loads
نویسندگان
چکیده
Topology for reactive power compensation of dynamic load in closed loop is presented. The scheme consists of Thyristor Binary Switched Capacitor (TBSC) banks and a Thyristor Controlled Reactor (TCR). TBSC is based on a chain of Thyristor Switched Capacitor (TSC) banks arranged in binary sequential manner. TCR capacity is chosen to be smallest of TBSC step size. A transient free switching of TBSCs is carried out. Excessive KVAR given by TBSC is absorbed by TCR. Firing angle range of TCR is selected in such a way that harmonics produced by it are within the safe range. Proposed topology allows stepless reactive power compensation of dynamic load in closed loop. Simulation results show that the proposed scheme can achieve reactive power compensation in cycle by cycle basis and the harmonics content of source are maintained at low level due to filtering action of TBSC. Keywords—Reactive power compensation, TBSC, TCR, transient free switching, Total Harmonic Distortion(THD)
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An Innovative TCR Compensator for Closed Loop Reactive Power Compensation of Dynamic Loads
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