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The optimal configuration of hybrid renewable energy (RE) system is useful for ensuring enough power is generated to meet the demand with reliable and cost effective manner. This is an alternative environmental friendly approach to reduce the use of diesel generators and cost of power generation. It is also a step to support the government's intention to move towards green energy. In this paper, the...
Vehicle-to-Grid (V2G) operation has gained immense popularity in the smart grid environment. Furthermore V2G could offer various ancillary services to the power grid. Frequency regulation is one of the ancillary services which offer highest profit to vehicle owner once participated in regulated market. This paper presents the maximum profit for the vehicle owner who participates in the V2G operation...
This paper introduces a new concept of artificial intelligence based algorithm for clustering the placement of SVCs in power system. The algorithm is based on particle swarm optimization (PSO) technique with objective function to minimize the transmission loss in the system. Experiments were performed on the IEEE 30- and IEEE 118-bus RTS to realize the effectiveness of the proposed technique, while...
The concept of non-discrimination in deregulated power system is still in debate as the conventional techniques are incapable of establishing fair losses charge allocation. Some of the recent power tracing techniques is workable for non-discriminatory allocation; however, only at certain power system conditions. To provide effectiveness for such purpose, this paper proposes a power tracing technique...
Protection system hidden failure was identified as one of the main causes of cascading failure. However, in the current practice of power system analysis, protection system is assumed to be perfect and the impact of hidden failures of a protection system is neglected. This paper proposes a systematically accurate technique to evaluate the impact of protection system hidden failures to the probability...
Unit commitment is among of the key elements in power system planning. Unit commitment is extensively applied by the power utilities to plan the optimal dispatch of generating units in the system. In the deregulated power system industry, it is important to consider several uncertainty constraints during the planning process. This research proposes the application of fuzzy set modeling to determine...
This paper introduced a new swarm based optimization technique for tuning Power System Stabilizer (PSS) that attached to a synchronous generator in a single machine infinite bus (SMIB) system. PSS which is installed with Lead-Lag (LL) controller is introduced to elevate the damping capability of the generator in the low frequency mode. For tuning three PSS-LL parameters, a new Particle Swarm Optimization...
This paper presents an overcurrent relays coordination study for an 11 kV commercial building in southern Malaysia. Nevertheless, the actual study that covers the over-current relays, earth fault relays and earth leakage relays were executed by providing optimum and functionable relay settings prior to commissioning of the building. The calculated settings and proposed adjustment settings have been...
This paper presents an overview on optimal overcurrent relay coordination in protection system and protective relays. Efforts have been made to include all methods used for the coordination of overcurrent relays. It includes techniques, such as Artificial Intelligence (AI) and Nature Inspire Algorithm (NIA) as well as other conventional methods used for overcurrent protection. A brief mentioned is...
A distinctive optimization technique known as Ant Colony Optimization (ACO) has gained huge popularity in these recent years. This algorithm has turned into a candidate approach to many optimization problems. Unfortunately, this attractive algorithm suffers several drawbacks, including stagnation and slow convergence toward optimal solution. Thus, a new algorithm, termed as Differential Evolution...
Distributed Generation (DG) integrated into distribution networks continued to grow both in number and size. Governments' incentives and obligations for a sustainable energy ensure that DG is going to be an important element in the future distribution systems. To achieve the maximum benefits of DG, factors such as the number and the capacity of the units and the best location have to be considered...
Distributed Generation (DG) is an auspicious solution to many power system problems such as voltage regulation, power loss minimization, effective operating power factor, etc. This paper presents a modified Artificial Bee Colony (ABC) algorithm to suit the searching for the optimal DG sizing and placement in a distribution network. The problem formulation and the proposed technique are tested on a...
In a modern urbanization metropolitan country, energy especially electrical energy is considered as an inevitable necessity because of their need have been seen apparently increase every year. Since then, the congestion in the power system had brought serious problems for the utility in particula. If the problems are not handled with care, a grisly catastrophic event is waiting, thus an appropriate...
The capacity benefit margin (CBM) must be considered in the determination of power transfer so-called as the ATC. A new methodology of CBM considering interconnected system reliability will be discussed in this paper. This is to ensure that the ability of one area to accommodate generation deficiency in the other area depends on the reliability of interconnected systems that used as a medium of power...
This paper presents the effect of supply voltage on partial discharge properties in solid dielectric. The study characterizes a pre-developed model which represents void in a solid dielectric. This model is used to investigate the interaction between discharges in such void in a solid dielectric when high AC voltage is applied to the system. Void and solid dielectric parts are represented as lumped...
This paper presents the artificial neural network (ANN) that used to perform STLF for the next 24 hours. The feature extraction involves a transformation of raw data that is from the chronological hourly peak loads to the multiple time lags of hourly peak loads. This is used to improve the input data which will significantly enhance the performance of ANN in forecasting the hourly peak loads with...
The power transfer between areas so-called as the available transfer capability (ATC) must accommodate a reasonable range of capacity benefit margin (CBM) so that the transmission system is secure from the occurrence of generation deficiency. This paper presents the CBM determination that takes into account the reliability assessment of interconnected system. This paper also presents a new approach...
Electric utilities are the companies responsible for ensuring energy supply meets their customers' requirement. While ensuring the energy is generated in the right amount, they have to guarantee that the energy is generated within feasible cost. Economic Load Dispatch (ELD) problem involves the scheduling of generating unit outputs that can satisfy load demand at minimum operating cost. Several approaches...
Locating the suitable locations in power system for the purpose of Flexible Alternating Current Transmission System (FACTS) devices installation can be realized via wide variety of techniques, and commonly applied by many researchers are sensitivity analysis and optimization approach. On the other hand, there are also various power tracing techniques have been invented by researchers, but their application...
With the advent of deregulation in electric utilities, short-term load forecasting (STLF) becomes even more important especially to the system operators and market participants in which this may assist them towards organizing appropriate planning strategies of risk management and competitive energy trading. This is important to ensure the electric utilities are operating in an economic, reliable,...
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