Voltage and frequency controllers for standalone wind energy conversion systems

Abstract

This study presents the design, development and comprehensive analysis of voltage and frequency controllers (VFCs) for standalone wind energy conversion systems (SWECSs). An isolated asynchronous generator, a synchronous generator (SG) and a permanent magnet SG are used with these SWECSs. These VFCs are developed with three-phase generators driven through a wind turbine to feed three-phase and single-phase loads. A battery energy storage system is used invariably with each system configuration to facilitate load leveling under change in wind speeds and consumer loads. The performance of VFCs are demonstrated to validate its operation as a load leveler, load balancer, phase balancer, neutral current compensator and an active filter along with a VFC.

Decentralized Autonomous Hybrid Renewable Power Generation

“…Singh and Sharma presented design, development, and analysis of voltage and frequency controllers (VFCs) for standalone WECS. An isolated asynchronous generator, a synchronous generator (SG), and a PMSG are used with these WECS [37]. These VFCs are developed with threephase generators driven through a wind turbine to feed threephase and single-phase loads.…”

Steady‐state and small‐signal models of a three‐phase quasi‐Z‐source AC–DC converter for wind applications

“…In wind energy applications, AC–DC converters interface the generator to a DC link or DC transmission [4] while AC–DC–AC converters are used to interface generators to an AC system [5–7]. Moreover, AC–DC converters with suitable controllers are employed in wind energy conversion systems and other applications to accomplish tasks that include, but not restricted: voltage and frequency control [3, 8–10], harmonic mitigation and power quality support [2, 11, 12], fault‐ride‐through and voltage support during faults [3, 6, 8] as well as variable speed operation of generators [2, 4, 7, 13, 14]. Topologies previously used for active rectifiers have been mainly based on the conventional voltage source rectifier (VSR) and the current source rectifier (CSR) [1, 2, 4–7, 14–19].…”