Journal of Power Electronics and Power Systems
Volume 6, Issue 2 (2016)
Published
Table of contents
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Area Load Frequency Control (ALFC) using Different Conventional Algorithms
Abstract: In practical system, frequency is always changing because of changing load. So, load frequency control (LFC) is necessary to maintain the frequency at an optimum level. So, in the general system, integral (I), proportional integral (PI) and proportional integral derivative (PID) controller is used for compensation of frequency. In this paper, simulation for LFC is done on two area thermal systems and also different conventional PID tuning methods for minimization …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 1–7 Read article
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Optimal Capacity of Pump Storage System for Standalone Green Microgrid Interconnection with Main Grid in Deregulated Power Sector
Abstract: The energy crisis requires more generation capability, and is more importance to the storage technologies. To overcome this shortage of energy, pump storage system is used in the power system with great storing capacity up to this time. The isolated or regional grid in remote areas probably depends on renewable power sources such as wind; solar, geothermal, tidal, etc. with its availability is the main power resources. It is quite …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 100–114 Read article
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Improvement in Distribution System Performance by D-STATCOM
Abstract: Increasing use of power electronics devices in modern power system has many power quality problems arise in distribution system like voltage sag, voltage swell, harmonics, flickering, etc. This problem largely affects the performance of distribution system. Distribution static synchronous compensator (D-STATCOM) is a device which is used for the solution of power quality problems. In this paper, voltage sag and voltage swell were generated and mitigation of the same is …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 25–33 Read article
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Multi Objective GAPSO Hybrid Algorithm for Optimal Location of Unified Power Flow Controller in Power System
Abstract: In the new era, sometimes, power systems work with heavily loaded lines resulting in higher power loss and higher voltage deviation which makes the system unstable. It is owing to continuous growing demand of electrical power. This paper elaborates a multi objective GAPSO hybrid algorithm to solve a multi objective optimization problem to find optimal location and size of unified power flow controller. The objective functions are used to minimize …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 34–44 Read article
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Review: Distribution Generation and Islandin
Abstract: The demand for distributed generation (DG) has increased in recent years and many countries across the world are adopting it due to various factors such as improvements in technologies including renewable energy sources and the efficiency it provides. However, islanding detection is of prime importance as it can be hazardous to the maintenance workers. The increasing use of distributed generation causes more number of parameters to be controlled for the …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 45–54 Read article
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Transient Analysis of a Grid-Connected Hybrid Wind-PV System
Abstract: A new reliable hybrid distributed generation (DG) system based on photovoltaic (PV) and wind driven permanent magnet synchronous generator (PMSG) as sources, with only a boost converter followed by an inverter stage is being developed. The proposed hybrid generator has a PV array being directly connected to the dc link instead of a dc-dc converter. The dc-dc converter varies the dc-link voltage and is placed in between the rectifier fed …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 55–63 Read article
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Design of Active Power Based Relay Algorithm to Overcome Transient Instability: 220 kV Amravati Substation Case Study
Abstract: This paper presents a new protective scheme, i.e. new relay algorithm to protect small scale generators against transient instability. The demand of installing small generators in distribution networks has been increased now-a-days. Small scale generators have low inertia constant. The inertia constant minimizes the frequency deviation which depends on the kinetic energy. Therefore frequency dynamics becomes slower and hence it increases the response time to react to fault events. Due …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 64–73 Read article
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Optimal Placement and Location of Phasor Measurement Unit Considering Bus Voltage Using Genetic Algorithm
Abstract: This paper presents a procedure by which new PMU locations can be symmetrically determined in order to render an observable system. Monitoring and supervision of power systems are provided by the control centre, whose role is the design, coordination and network management. In this paper, an attempt has been made to control technique based on the implantation of measurement units at the network buses. A proposed methodology makes the system …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 74–84 Read article
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Control of a Grid-Connected Variable Speed Permanent Magnet Synchronous Generator Based Wind Power Generation System
Abstract: Variable speed wind turbines are more efficient compared to their fixed speed counterparts since maximum power is extracted over a wide range of wind speeds. In this work a grid-connected wind power generation system is modeled and implemented in Matlab/Simulink using a permanent magnet synchronous generator. A back to back space vector pulse width modulated voltage source converter converts the variable frequency generator currents and voltages into DC, then back …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 8–24 Read article
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Available Transfer Capability (ATC) under Deregulated Environment
Abstract: The structure of the power industry is moving towards deregulated environment from the regulatory environment (monopoly). With deregulation taking place in the power industry, it introduces a more competitive environment in terms of free choice of suppliers for the trading of electricity. Monopolies of an industry will lead to a poor performance from the sector as there are no competitions for the sole company to strive for improvement. It will …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 85–88 Read article
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Mitigation of Magnetizing Inrush Current for Unloaded Three Phase Electrically Coupled Power Transformers involving Remanence Effect using Distributed Asymmetrical Winding Configuration
Abstract: This paper demonstrates a novel approach to mitigate the magnetizing inrush current of a coupled unloaded transformer to a considerable extent having had the residual magnetism present in its core with the aid of a modern distributed asymmetrical winding configuration alike from the conventional methods. The proposed method has been analyzed on Power transformer with different configuration of winding, core design arrangement while feeding from the mains to star and …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 89–99 Read article