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Radmanesh, Hamid
- Effect of the Series Resonance LC Tank on the Mitigation of Fault Current in Radial Distribution Networks
Abstract Views :185 |
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Authors
Affiliations
1 Electrical Engineering Department, Islamic Azad University, Takestan Branch, Takestan, Iran
2 Electrical Engineering Department, Aeronautical University of Science and Technology, Tehran, Iran
3 Electrical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
1 Electrical Engineering Department, Islamic Azad University, Takestan Branch, Takestan, Iran
2 Electrical Engineering Department, Aeronautical University of Science and Technology, Tehran, Iran
3 Electrical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
Source
Indian Journal of Science and Technology, Vol 9, No 7 (2016), Pagination:Abstract
This paper proposes a novel Fault Current Limiter (FCL) for the application on power systems to control voltage sags at the Point of Common Coupling (PCC) during faults. This new FCL is a resonance transformer, whose primary side is connected to a series capacitor and transmission line. Also, the secondary side of the transformer is switched by a semiconductor device to change the impedance of the primary side of the transformer. The main control component is a fast-closing switch connected in parallel with the secondary side of the transformer, which is driven by the power electronic switch. It can respond within 1 msec. When a fault occurs, the switch closes and bypasses the transformer secondary side and fault current is limited by the reactor. So, by increasing the existing resonant frequency, the fault current is limited. The simulated and experimental results show that it is feasible to develop the FCL with low cost and high reliability. The experimental results show the capability of the proposed FCL, tooKeywords
Fault Current Limiter (FCL), Point of Common Coupling (PCC), Power Quality, Resonance Transformer- Enhancement of Power System Oscillation Damping using Fuzzy Inference System based Coordinated Design of SSSC Controllers
Abstract Views :225 |
PDF Views:0
Authors
Reza Sharifi
1,
Reza Khamooshi
1,
Hamid Radmanesh
2,
G. B. Gharehpetian
1,
Seyyed Hamid Fathi
1,
Javad S. H. Moghani
1
Affiliations
1 Electrical Engineering Department, Amirkabir University of Technology, Tehran, IR
2 Electrical Engineering Department, Aeronautical University of Science and Technology, Tehran, IR
1 Electrical Engineering Department, Amirkabir University of Technology, Tehran, IR
2 Electrical Engineering Department, Aeronautical University of Science and Technology, Tehran, IR
Source
Indian Journal of Science and Technology, Vol 9, No 17 (2016), Pagination:Abstract
Nowadays, Flexible AC Transmission System (FACTS) devices are widely used in different power systems. As the application of these technologies increases, possible interferences in operational tasks of controllers and inappropriate oscillations in different situations like fault and post-fault conditions make the coordination of their controllers inevitable. In this paper, a Fuzzy Inference System (FIS) based coordinated design of Static Synchronous Series Compensator (SSSC) controllers is presented and discussed. The main advantages of the proposed scheme are good damping and overshoot reduction of oscillations and thereby improving power oscillations damping. The Trajectory Sensitivities (TS) analysis, which is a time domain method to evaluate the stability of a system in the presence of disturbances, is also used to assess the validity of this coordinated controller design method. The comparison of simulation results with the conventional Proportional-Integral-Derivative (PID) controller based system validates the effectiveness of this design.Keywords
Coordinated Design, Fuzzy Inference System, Flexible AC Transmission System, Power System Oscillations, Static Synchronous Series Compensator.- Online Voltage Estimation for Distribution Networks in Presence of Distributed Generation
Abstract Views :142 |
PDF Views:0
Authors
Affiliations
1 Electrical Engineering Department, Aeronautical University of Science and Technology, Tehran, IR
2 Electrical Engineering Department, Amirkabir University of Technology, Tehran, IR
1 Electrical Engineering Department, Aeronautical University of Science and Technology, Tehran, IR
2 Electrical Engineering Department, Amirkabir University of Technology, Tehran, IR