Design and Simulation of a Zero Crossing VSC Based Phase Synchronous Inverter for Microgrid System

Tawfikur Rahman, Mohammad Kamrul Hasan, Musse Mohamud Ahmad, AKM Zakir Hossain

Abstract


A microgrid is a system which consists of the transmission line and loads capable of operating in parallel with the national grid and distributed power sources such as power generation, storage and demand management. However, to connect the wind, solar and electrostatic power generation system together with microgrid, a phase synchronisation issue arises. For the electrostatic system, generated DC voltage needs to be converted into AC to connect with the transformer-less microgrid system. This process inherently produces very low output current and also degrades the phase synchronization of the system. To counter these issues, a zero-crossing voltage source controller based phase synchronous inverter system has been designed and implemented in this paper. In addition, an active LCL filter has been designed to reduce the high harmonic distortion. Moreover, to verify the result, MATLAB2014a software has been used. In this design, input DC voltage of 10kV, switching frequency of 1.65 kHz, grid frequency of 50Hz and balanced grid loads of star configuration (00, 1200, and 2400 degree) are considered. The simulated result has shown that inverter inversion efficiency is 96.8% and phase angle error is only 3.50 degrees.

Keywords


Microgrid; LCL Filter; VSC; Zero Crossing; PSI;

Full Text:

PDF

References


T. Rahman, S. M. A. Motakabber, M. I. Ibrahimy, and M. G. Mostafa, “Simulation and evaluation of a phase synchronous inverter for microgrid system,” ARPN J. Eng. Sci., vol. 11, no. 1, pp. 1-2, Jan. 2016.

T. Rahman, S. M. A. Motakabber and M. I. Ibrahimy, “Phase synchronous inverter for microgrid system,” in Int. Conf. on Computer and Communication Engineering., IEEE-ICCCE, pp. 167-171, 2016.

S. Bal, D. Srinivasan, and A. K. Rathore, “Modular bidirectional current-fed three-phase inverter for microgrid application” In Power Electron., Intelligent Control and Energy Systems (ICPEICES), IEEE Int. Conf., pp. 1-6, Jul. 2016.

G. Gohil, L. Bede, R. Teodorescu, T. Kerekes, and F. Blaabjerg, “Optimized Integrated Harmonic Filter Inductor for Dual-ConverterFed Open-End Transformer Topology,” IEEE Trans. Power Electron., vol. 32, no. 3, pp. 1818-1831, Mar. 2017.

T. Rahman, S. M. A. Motakabber and M. I. Ibrahimy, “Design of a switching mode three phase inverters,” in Int. Conf. on Computer and Communication Engineering., IEEE-ICCCE, pp. 155-160, 2016.

L. Yang, J. Wang, Y. Ma, J. Wang, X. Zhang, L. M. Tolbert, F. F. Wang, and K. Tomsovic, “Three-Phase Power Converter-Based RealTime Synchronous Generator Emulation,” IEEE Trans. Power Electron., vol. 32, no. 2, pp. 1651-1665, Feb. 2017.

R. J. Van de Graaff, J. G. Trump, and W. W. Buechner, “Electrostatic generators for the acceleration of charged particles,” Reports on Progress in Physics, vol. 11, no. 1, pp. 1, 1948.

T. Rahman, S. M. A. Motakabber and M. I. Ibrahimy, “Low noise inverter for poly phase microgrid system,” in Int. Conf. on Computer and Communication Engineering., IEEE-ICCCE, pp. 172-176, 2016.

C. Chen, J. Xiong, Z. Wan, J. Lei, and K. Zhang, “A Time Delay Compensation Method Based on Area Equivalence for Active Damping of an LCL-Type Converter,” IEEE Trans. Power Electron., vol. 32, no. 1, pp. 762-772, Jan. 2017.

T. Rahman, S. M. A. Motakabber and M. I. Ibrahimy, “Three Phase Three Layer Phase Synchronous Inverter for Microgrid System. In Computer and Communication Engineering,” in Int. Conf. on Computer and Communication Engineering., IEEE-ICCCE, pp. 44- 47, 2014.

D. Brandao, T. Caldognetto, P. Fernando, Marafão, G. Marcelo, Simões, A. José Pomilio, and Paolo Tenti. “Centralized control of distributed single-phase inverters arbitrarily connected to three-phase four-wire microgrids,” IEEE Trans. on Smart Grid., vol. 8, no. 1, pp. 437-446, Jan. 2017.


Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

ISSN: 2180-1843

eISSN: 2289-8131