Stand-Alone Single-Phase Power Generation Employing a Three-Phase Isolated Asynchronous Generator

Abstract

This paper deals with a stand-alone single-phase power generation using a three-phase isolated asynchronous generator (IAG) coupled with a wind turbine or a pico-hydro turbine. The proposed voltage and frequency controller (VFC) for a stand-alone single-phase power generation is used as a phase balancer for a three-phase IAG, a load leveler, and an active filter. The VFC is realized using a three-leg voltage-source converter and a battery energy storage system. The VFC ensures optimum utilization of a three-phase IAG for feeding a variety of single-phase loads, improves conversion efficiency, and reduces noise and vibration in the IAG. The rating considerations of an IAG and VFCs are also discussed for a single-phase power generation. The performance of an IAG system is demonstrated under steady-state and dynamic conditions of feeding single-phase linear and nonlinear loads. Simulated results are validated with test results on a developed system. Index Terms-Isolated asynchronous generator (IAG), picohydro generation, power quality, single-phase power generation, voltage-source converter (VSC), wind energy.

Voltage and frequency controllers for standalone wind energy conversion systems

“…The parallel circuit of C b and R b is used to describe the stored energy and the R b (considered 10 kΩ) responsible for self-discharging. The interface inductor is obtained as [36]…”

“…From the apparent rating of a VSC, the current rating is obtained as, I vsc = 76 A. For considering 5% of peak-peak ripple current (i pp ), the maximum current through an IGBT is obtained as [36]…”

Development of an SDBC-MMCC-Based DSTATCOM for Real-Time Single-Phase Load Compensation in Three-Phase Power Distribution Systems

“…As shown in Figure 2, for the single-phase load compensation, the DSTATCOM should compensate the entire negative-sequence component and imaginary part of the positive-sequence component currents generated by the single-phase load, as revealed in Equation (10) [21,22]. The source current only supplies the real part of the positive-sequence load current.…”

Implementation of Voltage Controller of Single-phase Self-excited Induction Generator

“…Numerous publications on steady-state and dynamic analysis of self-excited induction generators (SEIGs) and several schemes for improving voltage regulation of SEIGs based on the electronic load controller (ELC), static VAR compensator (SVC), and distribution static compensator (DSTATCOM) have been well documented in [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. For constant voltage operation at varying loads, it is necessary to adjust the excitation reactive power continuously with loads.…”