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Sivanagaraju, S.
- Generalized Unified Power Flow Controller for Optimal Reactive Power Dispatch by Considering Practical Constraints
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Authors
Affiliations
1 Department of EEE, GMRIT, Rajam - 532 127, Andhra Pradesh, IN
2 Department of EEE, VVIT, Guntur - 522509, Andhra Pradesh, IN
3 Department of EEE, JNTUK, Kakinada - 533003, Andhra Pradesh, IN
1 Department of EEE, GMRIT, Rajam - 532 127, Andhra Pradesh, IN
2 Department of EEE, VVIT, Guntur - 522509, Andhra Pradesh, IN
3 Department of EEE, JNTUK, Kakinada - 533003, Andhra Pradesh, IN
Source
Indian Journal of Science and Technology, Vol 10, No 5 (2017), Pagination:Abstract
Objectives: One of the drawbacks of the power system network, i.e. Optimum Reactive Power Dispatch (ORPD) is optimized. Due to this, system transmission power losses and bus voltage magnitudes are optimized Methods/Statistical Analysis: A unique optimization rule, Uniformly Distributed Two-stage Particle Swarm Optimization (UDTPSO) are enforced in conjunction with the traditional Particle Swarm Optimization (PSO).The power injection model for the Generalized Unified Power Flow Controller (GUPFC) is used to enhance the power flow in a power system network. Findings: The proposed technique has fast convergence rate in less number of iterations which validates the effectiveness of UDTPSO. The study is tested on a standard IEEE-30 bus system and the results obtained with UDTPSO are valid with the existing PSO. Applications: Effective utilization of a Flexible Alternating Current Transmission system (FACTS) device called Generalized Unified Power Flow Controller (UPFC) for power flow control which will improve existing transmission capability.Keywords
Generalized Unified Power Flow Controller, Loss Minimization, Optimal Reactive Power Dispatch, Uniformly Distributed Two Stage Particle Swarm Optimization, Voltage Deviation.- Short Term Wind Speed Forecasting using Hybrid ELM Approach
Abstract Views :175 |
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Authors
Affiliations
1 EEE Department, UCEK, JNTUK, Kakinada - 533003, Andhra Pradesh, IN
1 EEE Department, UCEK, JNTUK, Kakinada - 533003, Andhra Pradesh, IN
Source
Indian Journal of Science and Technology, Vol 10, No 8 (2017), Pagination:Abstract
Objectives: To enrich the accuracy of the wind speed forecasting to calculate wind power generation connecting to grid with the help of machine learning algorithms. Methods/Statistical Analysis: A novel hybrid method, Persistence - Extreme Learning Machine (P-ELM) algorithm is proposed. It uses the features of both Persistent and Extreme Learning Machine algorithms. The historical data of meteorological parameters viz. pressure, temperature and past wind speeds are considered as input parameters and wind speed for the next instant as the output, measured at one hour interval for a period of a month are used for the study. Findings: The forecasting is carried out for three areas Guntur, Vijayawada and Ongole of Andhra Pradesh state, India for winter, summer and rainy seasons. The performance of the P-ELM is evaluated in terms of Mean Absolute Error (MAE) and Root Mean Square Error (RMSE). From the results obtained it can be concluded that the P-ELM algorithm leaves behind the fundamental Persistent and Extreme Learning Machine algorithm not only in terms of error metrics but also in simulation time. The entire simulation is carried out with the help of MATLAB 2013a software. Application/Improvements: This technique is very much helpful in real time forecasting of wind speed to avoid the high level of uncertainty involved in wind generation, there by increases the power system security and stability.Keywords
Extreme Learning Machine (ELM), Forecasting, Machine Learning Algorithms, Persistent Extreme Learning Machine (P-ELM), Wind Speed- Analyzing the Effect of Distributed Generators on Economical and Technical Aspects of Distribution Systems
Abstract Views :220 |
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Authors
Affiliations
1 Department of EEE, Vasireddy Venkatadri Institute of Technology, Guntur – 522508, Andhra Pradesh, IN
2 Department of EEE, Lakireddy Bali Reddy college of Engineering, Mylavaram, Vijayawada – 521230, Andhra Pradesh, IN
3 Department of EEE, UCEK, JNTUK, Kakinada – 533003, Andhra Pradesh, IN
4 EEE, Vasireddy Venkatadri Institute of Technology, Guntur – 522508, Andhra Pradesh, IN
1 Department of EEE, Vasireddy Venkatadri Institute of Technology, Guntur – 522508, Andhra Pradesh, IN
2 Department of EEE, Lakireddy Bali Reddy college of Engineering, Mylavaram, Vijayawada – 521230, Andhra Pradesh, IN
3 Department of EEE, UCEK, JNTUK, Kakinada – 533003, Andhra Pradesh, IN
4 EEE, Vasireddy Venkatadri Institute of Technology, Guntur – 522508, Andhra Pradesh, IN