Voltage Stability Management in Malaysia Power System with Inverter-Based Distributed Generator

Salim, Norhafiz (2017) Voltage Stability Management in Malaysia Power System with Inverter-Based Distributed Generator. Doctoral thesis, Universiti Teknikal Malaysia Melaka.

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Abstract

In many countries, past large-scale blackouts were caused by voltage instability phenomenon and it is of prime importance to enhance the voltage stability to realize stable power supply.At initial, sort of estimation approach using the artificial neural network (ANN) for a predefined solution in the real practical power system is discussed in the investigation with distributed generators (DG) participation. Next, this thesis presents a methodology to increase loading margin (LM) in terms of voltage stability by using reactive power support of DG, in particular photovoltaic (PV), considering the operating limits of power system components such as generators. The proposed method is based on optimal active and reactive power dispatch from DGs under normal and contingency conditions. Here, a trade-off relationship between reactive power injection and active power curtailment was carefully considered in optimizing the DG’s contributions. The proposed method is based on Particle Swarm Optimization and its effectiveness was verified in Malaysian Electric Power System (MEPS) model along with constant power loads. It was observed through simulation results that optimal reactive power injection from DGs improved the maximum loading under the voltage stability constraint.

Item Type: Thesis (Doctoral)
Uncontrolled Keywords: Power systems, Voltage regulators, Electric power system stability, Voltage Stability Management, Power System, Inverter-Based Distributed Generator
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Electronics and Computer Engineering
Depositing User: Muhammad Afiz Ahmad
Date Deposited: 20 Sep 2017 04:44
Last Modified: 13 Jul 2020 15:14
URI: http://eprints.utem.edu.my/id/eprint/19038
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