The Architecture of a 24 Pulse Dynamic Voltage Restorer for Voltage Enhancement Incorporating Vector Control Methodologies

Abstract

The whole article is all about the advancement of an improved control system for investigating the compensation functionality of DVRs. To regulate this same switch signal in the voltage-sourced converter, a two-level, 24-pulse DVR is modeled with such an innovative control strategy. Along with order to make sure that P has been reduced, one analysis tries to explain and compares 4 distinct strategies: i.e. Voltage Tolerance Strategy; In-Phase Compensation; Phase Shift Compensation; Voltage Tolerance Strategy The latest model, as well as a control system, would be helpful for more research into PQ in such a distribution network. A detection unit must be fast enough to detect changes in all phase voltages, which would include amplitude, and to trigger the DVR to inject the adequate voltage level with the requisite phase angle magnitude in a short amount of time. To achieve phase and frequency details of the grid voltage and monitor the sag period, a DVR model, as well as a PLL with such a proportional-integral (PI) controller, have been used. This was discovered that only the proposed technique could even accurate deep voltage sag/swell and short interruptions faster than the traditional mechanism. This same proposed computation accuracy has been explained utilizing PSCAD/EMTD modeling on an 11-kV grid whenever the power system is confined to unbalanced three-phase deep voltage sag/swell and short disturbance.

Keywords: Dynamic Voltage Restorer (DVR), Voltage Sag/Swell, Two vector control algorithm, Phase-locked loop (PLL), Power quality (PQ)