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Content Provider | IEEE Xplore Digital Library |
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Author | Singh, B. Kasal, G.K. Chandra, A. Al Haddad, K. |
Copyright Year | 2008 |
Description | Author affiliation: Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi (Singh, B.; Kasal, G.K.) |
Abstract | This paper presents an investigation on a voltage and frequency controller (VFC), which functions as an improved electronic load controller (IELC) for parallel operated isolated asynchronous generators (IAGs) in an autonomous micro hydro power generation system. In such type of micro hydro scheme whole generating system is isolated from the grid and supply electricity to the remote communities. The single point operation of these generators is realized, in such a manner that excitation capacitors, speeds, voltage, currents of generators remain constant under various operating loads conditions. The proposed controller consists of a 3-leg IGBT (Insulated Gate Bipolar Transistor) based voltage source converter (VSC) and a DC chopper with an auxiliary load at the DC bus of the VSC. The IELC controls the reactive and active power simultaneously for controlling the voltage and frequency under varying consumer loads. Along with voltage and frequency control through single point operation of IAGs driven by uncontrolled micro hydro turbines, the IELC meets the power quality standard an IEEE-519 and it keeps the total harmonic distortion (THD) of the terminal voltage and generator currents within the limit of 5%. Here the proposed electrical system along with its controller is modeled in MATLAB along with Simulink and PSB (Power System Block-set) toolboxes. Simulation results are presented to demonstrate the capability of proposed controller for an isolated generating system. |
Starting Page | 1 |
Ending Page | 9 |
File Size | 644826 |
Page Count | 9 |
File Format | |
ISBN | 9781424419050 |
ISSN | 19325517 |
DOI | 10.1109/PES.2008.4596127 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2008-07-20 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Voltage control Generators Frequency control Choppers Load modeling Capacitors Converters Single Point Operation Parallel Operation of Isolated Asynchronous Generators Voltage and Frequency Controller |
Content Type | Text |
Resource Type | Article |
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