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Photovoltaic (PV) generation involves the direct conversion of sunlight into electrical energy. In recent years it has proved to be a cost-effective method for generating electricity with minimum environmental impact. Due to the environmental and economic benefits PV generation is now being deployed worldwide as an embedded renewable energy source and extensive research is being performed in order...
In a broad-spectrum, power generation is effected primarily through coal, nuclear and natural gas power plants, but the contributions of renewable energy sources also play an essential role in expanding the energy portfolio. The most significant issues in this industry are the recent deregulation initiatives, which influence company decisions as regards the construction of new generation plants and...
With the present global scenario of electricity generation, distribution and meeting the consumer demand, fuel cell power generation technology is gaining importance on its own way as it has many advantages like less environmental pollution, high efficiency, cleanliness and safe operation. Several research works have been done in this area of power generation. In this paper, a dynamic model of a proton...
Fuel cell power generation technology is gaining importance on its own way as it has many advantages like less environmental pollution, high efficiency, cleanliness and safe operation with the present global scenario of electricity generation, distribution and meeting the consumer demand. Several research works have been done in this area of power generation. In this paper, a dynamic model of a Proton...
The topology of an electrical distribution system (EDS) can be suitably modified to minimize the real and reactive losses. EDS is normally unevenly loaded and hence often need load balancing, which can also be achieved by suitably reconfiguring the network. This paper presents a new approach for reconfiguration of EDS based on efficient analysis in Cymdist software package. The proposed method is...
The need for higher frequency in state estimation execution covering larger supervised networks has led to the investigation of faster and numerically more stable state estimation algorithms. However, technical developments in distributed energy management systems based on fast data communication networks open up the possibility of parallel or distributed state estimation implementation. In this paper,...
Micro grid is an epitome of a macro grid but works in low voltage comprising of various small-distributed energy resources (DERs), energy storage devices, and controllable loads being interfaced through fast acting power electronic devices. Combined heat and power (CHP) produced by DERs are utilized in the local market where Micro Grid operates either in island mode or in grid-connected mode. The...
Anodic bonding of single crystal silicon wafer with glass and subsequent splitting of the silicon wafer is done by ion-cut technique that involves proton bombardment at desired energies at a dose level >5×10 16 cm −2 and then subjected to the bond pair for heat treatment at ∼550 °C. Details of the bonding and splitting processes have been discussed in the present study. The high...
The fuel management system forms an integral part of the management process in a power plant and hence is one of the most critical areas. It deals with the management of commercial, operational and administrative functions pertaining to estimating fuel requirements, selection of fuel suppliers, fuel quality check, transportation and fuel handling, payment for fuel received, consumption and calculation...
Energy accounting system (EAS) is required to account the energy flows through various feeders, transformers, substations or various electrical equipment of network systems. Such auditing and accounting shall provide precise accounting of the input and output of energy for any desired time period. The system shall be capable of providing customizable management reports of identifying gaps in the energy...
A dynamic model of a proton exchange membrane (PEM) fuel cell (FC) has been developed to study its dynamic behaviors along with a fuzzy logic controller (FLC) to control the fuel flow to the reformer. The model can be used to study the dynamic behavior of the system in stand-alone and grid connected mode. The dynamic behavior of the fuel cell system with FLC and PI controller were studied and compared...
After enactmentment of Electricity Act 2003, the power utility sector in India is changing from monopoly to a competitive industry. The reformation of power utility sector has paved path for the development of a power market in India in the recent years. Now it has become essential to design an appropriate power market applicable to Indian utility sector in this transition phase. The design of the...
Phasor measurement units are power system devices that provide synchronized measurements of real-time phasors of voltages and currents.The aim of this paper is to provide comprehensive survey on optimum phasor measurement unit (PMU) for power system placement .The different Algorithm used for the optimum PMU placement are discussed in detail.
There is an essential need for a newly formed Power Distribution Utility (DISCOM) to take a lot of initiatives to become reliable power supplier in a competitive market. The initiatives taken by a DISCOM in different areas like Process Improvement in technical areas like Operation & Maintenance, Commercial areas like Customer Care to enhance all the related performances. Key challenges involving...
A number of computing models based on adaptive network-based fuzzy inference system (ANFIS) are proposed in this paper to forecast peak load demands of an electric power utility. The models are capable of forecasting the peak demands both week-days and weekend-days i.e. Sundays and holidays as well. At the same time the models possess adaptability to the changing data pattern which may occur in case...
Accurate monitoring of power system operation has become a very important function in today’s deregulated power markets and thus, state estimators have become the essential tools of choice for the implementation of this function. Determination of the best possible combination of meters for monitoring a given power system is referred to as the optimal meter placement. Whether a new state estimator...
The operation of distribution systems requires a rather high number of planned or forced switching operations. In order to prepare them, it is necessary to estimate loads at different levels in the system. This paper proposes a load estimation method for distribution systems with weighted least square estimation and back propagation artificial neural network. The above methods are demonstrated with...
Induction motors are, without any doubt, the most used in industry. Motor drive efficiency optimization is important for two reasons: economic saving and reduction of environmental pollution. In this paper, advantages of using fuzzy logic in steady-state efficiency optimization for induction motor drives are described. Experimental results of a fuzzy logic based optimum flux search controller are...
In this paper, the authors report on the design, simulation and validation of an adaptive neuro-fuzzy inference system (ANFIS) based power system stabilizer (PSS) for a single-machine-infinite-bus (SMIB) and a multi-machine power system and investigate its performance in damping low frequency local and inter-area oscillations. The design employs a first order Sugeno fuzzy model, whose parameters are...
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