Performance Study of Distributed Generation System in Grid Connected/Isolated Modes
The Microturbine Generations (MTG) system is becoming one of the promising sources of Distributed Generation (DG) due to their fuel flexibility, reliability and power quality. Thus, the accurate model of MTG system is required for the grid connected operation and its perturbations. This article presents the performance study of MTG based DG system in grid connected, islanding and re-closed modes of operation. The developed model of MTG system includes a microturbine as prime mover, Permanent Magnet Synchronous Machine (PMSM) and power electronics interacting circuit along with control schemes. The MTG system uses the turbine speed to control the microturbine output power in comparison with the reference speed and shaft speed. The generated AC power is converted to DC using a passive rectifier and this DC power is inverted back to AC power to mach grid frequency. The DC link power is delivered to the grid, islanding load using a three phase voltage source inverter with Pulse Width Modulation (PWM) techniques. While delivering the DC link power to the grid and islanding load, the respective Active, Reactive Power (PQ) and Voltage Frequency (VF) control strategies are used for inverter operation. The detailed model of MTG system along with control schemes is developed using Matlab/ Simulink environment and the simulation results show the performance of MTG based DG system. From the simulation study, it is ascertained that, the developed model of MTG system can delivers the power to grid and isolated load significantly, by shifting the converter controller manually.
Barker P P and De Mello R W, ‘Determining the impacts of distributed generation
on power system Part 1 Radial distribution system, Proceedings of IEEE Power Eng.
society summer meeting, 2000, 3, pp.1645-2000.
Villeneuve P L, ‘Concerns generated by islanding’. IEEE Power Energy Magazine,
, 57, pp.49-53.
Barsali S, Ceraolo M, Pelancchi P, Poli D, ‘Control techniques of dispersed
generiaon to improve the continuity of electricity supply’. Proceeding of IEEE PES
winter meeting, 2002, 2, pp.27-31.
IEEE, ‘IEEE standards for interconnecting distributed resources with electric
power systems’. IEEE Std.1547-2003,2003.
Bettain A, Bossi C, Fornari F, Massucco S, Spelta S, ‘A Microturbine Generation
System for Grid Connected and Islanding Operation’. IEEE Conference PSCE-2004
New York, pp1-6.
Gaonkar D N, G N Pillai, Patel R N, ‘Dynamic Performance of Microturbine
Generation System Connected to Grid’ Journal of Electric Power Systems and
Components, 2008, 36, pp.1031-1047.
Tirumala R, and Mohan N, Henze C, ‘Seamless transfer of grid connected PWM
inverter between utility interactive and stand alone modes’, Proceedings of 17th
annual IEEE appeal, Power Electronics Conference, 2002, 2, pp.1081-1086.
Illinda M, and Venkataraman G, ‘Control of Distributed Generators Systems to
mitigate load and line imbalance’. Proceeding of IEEE Electronics and Specialist
Conference, 2002, 4, pp.2013-2002.
H. Nikkhajoei, M. Reza Iravani, A Matrix Converter Based Microturbine
Distributed Generation System’ IEEE Transaction on Power Delivery, 20, 3, July-2005,
Noroonian R, Abidi M, Gharepetian G B, Hosseini S H, Modelling and Simulation
of Microturbine Generation System for Grid and off grid operation Modes’
University of Zanjan, Iran.
Xunwei Yu, Zhenhua Jiang, and Atideh Abbasi, Dynamic Modeling and Control
Design of Microturbine Generation Systems’ IEEE International Conference on Electric Machines and Drives, IEMDC 09, May-2009, pp.1239-1243.
A K Saha, S Chowdhury, S P Chowdhury, P A Crossley, Microturbine Based
Distributed Generation in Smart Grid Application’ CIRED Seminar 2008, Smart
Grid for Distribution, Fankfurt, 23-24 June 2008, pp.1-4.
R E Sonntag, G V Wylen.: ‘Introduction to Thermodynamics Classical and
statically,’ New York, Johan Wily and Sons, 1982.
Timothy T, Fred Wang, Dushan B, Islanding Control of a Distributed Generation
Unit’s Power Conversion System to the Electric Utility Grid’ IEEE Conference on
Power Electronics Specialists,2005 PESC-05, pp.210-216.
J E Kim, J S Hwang, Islanding Detection Method of Distributed Generation
Units Connected to Power Distribution System’ IEEE Conference on Power System
Technology, 2000, 2, pp.643-647.
H H Zeineldin, E F El Saadany, M M A Salama, Islanding Detection of Inverter
Based Distributed Generation’ IEEE Pooc-Gener, Transmission and Distribution, 153,
Nov 2006, pp.644-652.
J.B. Ahn, Y H Jeong, D H Kang, ‘Development of High Speed PMSM for
Distributed Generation Using Microturbine’ IEEE 30th Annual Conference on
Industrial Electronics Society, November 2-6 2004, Busan, Korea.