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Prediction of weather is determination of future weather condition based on different weather parameters. The different weather parameters were recorded day to day wise. In “Future Weather Forecasting using Soft Computing Technique” the neural network is trained using different combination of weather parameters, the parameter used are humidity, temperature, pressure, wind speed, dew point and visibility...
Precise electric load forecasting is very crucial in achieving better cost effective risk management plans. This can be achieved by a Short Term Electricity Load Forecasting (STLF) model. This paper proposed a Cascaded Feed-Forward BPN wavenet forecast model to perform the STLF. The model is composed of several neural networks along with wavelet transform. The historical electricity load data is processed...
Injection of the wind power into an electric grid affects the power quality. The performance of the wind turbine and their power quality are determined on the basis of measurements, and according to the guideline specified in International Electro-technical Commission, IEC 61400-21.The influence of the wind turbine in the grid system concerning the power quality measurements are-the active power,...
This paper describes the analysis and design of a grid connected wind generating system with voltage source converter (VSC). When wind generating system (WGS) is connected to grid create a problem of power quality such as poor power factor, voltage distortion, and harmonic distortion on the grid. The grid connection is realized by a controlled PWM voltage source inverter. The VSC is operated in hysteresis...
The wind energy generation, utilization and its grid penetration in electrical grid is increasing world wide. The wind generated power is always fluctuating due to its time varying nature and causing stability problem. This weak interconnection of wind generating source in the electrical network affect the power quality and reliability. The localized energy storages shall compensate the fluctuating...
Awareness of power quality is highly increased in a sensitive industry, where the standardization and performance is an important aspect. The connection of wind turbine to the grid affectpsilas the electric grid power supply quality. Therefore it is necessary to maintain the power quality norm at the interface of the grid from the disruptive effect caused by wind turbine such as voltage fluctuation,...
In the grid new renewable resources are added to extract more power. This adds more of problems to grid connection. They are voltage fluctuations and harmonic distortion. In this paper various interfacing topologies are analyzed to get wind turbine power within the norms specified in IEC 61400-21. In this paper, a simplified control strategy is used. The front-end voltage source inverter is operated...
This paper develops a systematic and mathematical study of the balancing theory of a three level DC-DC converter. It is proposed to make DC link voltages balanced across the capacitor stack. This voltage distribution gets equally distributed by selecting the appropriate switching frequency. This work is to investigate the new control scheme to incorporate the current adaptive switching in DC-DC converters...
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