Operation and control of a stand-alone power system with integrated multiple renewable energy sources

Abstract

To overcome the difficulties of extending the main power grid to isolated locations, this paper proposes the local installation of a combination of three renewable energy sources, namely, a wind driven DFIG, a solar PV unit, a biogas driven squirrel-cage induction generator (SCIG), and an energy storage battery system. In this configuration one bi-directional SPWM inverter at the rotor side of the DFIG controls the voltage and frequency, to maintain them constant on its stator side, which feeds the load. The PV-battery also supplies the load, through another inverter and a hysteresis controller. Appropriately adding a capacitor bank and a DSTATCOM has also been considered, to share the reactive power requirement of the system. Performance of various modes of operation of this coordinated scheme has been studied through simulation. All the results and relevant waveforms are presented and discussed to validate the successful working of the proposed system.

A Single-Stage, Multi-Port Hybrid Power Converter Integrating PV and Wind Sources for a Standalone DC System

“…Thereon, the outputs of both conversions are connected to the DC link supported by the battery and this DC link is interconnected with the AC load via an inverter. The system presented in [8] is a standalone AC system with PV-wind in addition to a biomass source unit. Thereon, individual converters are used for each source that require an individual closed-loop control scheme as well.…”

Effect of Grid Faults on Dominant Wind Generators for Electric Power System Integration:A Comparison and Assessment

“…RESs offer a great potential to help certain regions grow sustainably while also giving a lot of socioeconomic advantages. Diversity of electricity supply, environmental sustainability, and the establishment of new industry and business possibilities are among the RES advantages [2,3].…”