Design Analysis and Implementation of a Dynamic Voltage Restorer

摘要

The paper describes the design, development and testing of a three phase prototype Voltage Source Inverter (VSI) as part of the Superconducting Magnetic Energy Storage (SMES) system technology development at Variable Energy Cyclotron Centre (VECC), Kolkata. Following a Dynamic Voltage Restorer (DVR) topology the paper details the electrical aspects of the design and the mathematical model thus formulated. Derivations of several electrical parameters have been made and block diagram of the digital control, implemented by a fixed point DSP based controller (DSC) has been explained with reporting of the test results on a nominal load. A generalized formulation has been attempted so as to allow designers to utilize it for future applications.