i-manager's Journal on Power Systems Engineering (JPS)


Volume 6 Issue 1 February - April 2018

Research Paper

Multi Area Load Frequency Control of a Hybrid Power System with Advanced Machine Learning Controller: Case Study of Andhra Pradesh

Mahaboob Shareef Syed * , Ch.V.Suresh**, S. Siva Nagaraju ***
* Research Scholar, Department of Electrical and Electronics Engineering, Jawaharlal Nehru Technological University Kakinada, Andhra Pradesh, India.
** Associate Professor, Department of Electrical and Electronics Engineering, Vasireddy Venkatadri Institute of Technology, Nambur, Guntur Andhra Pradesh, India.
*** Professor, Department of Electrical and Electronics Engineering, Jawaharlal Nehru Technological University Kakinada, Andhra Pradesh, India.
Syed, M. S., Suresh, V., and Sivanagaraju, S. (2018). Multi Area Load Frequency Control of a Hybrid Power System with Advanced Machine Learning Controller: Case Study of Andhra Pradesh. i-manager’s Journal on Power Systems Engineering, 6(1), 1-13. https://doi.org/10.26634/jps.6.1.14043

Abstract

In the present work, the Load Frequency Control (LFC) problem of a real time bus test system of Andhra Pradesh state 124 (AP-124), India, has been studied. The system comprises of hydro, thermal, gas, and nuclear plants. The entire system is segregated into four control areas. Area 2 and Area 4 form a hybrid power system with wind and solar plants integration, as the availability of wind and solar resources are abundant in the respective areas. To overcome the chaotic behaviour of load and renewable energy generation, it is indeed necessary to develop a sophisticated controller. A hybrid Persistent – Extreme Learning Machine (P-ELM) controller was used to encounter the frequency and tie-line power deviations. The LFC has been studied by the Conventional Integral Control, Neural Network (NN) Control and P-ELM Control, with variations in load, wind, and solar generations as well.

Research Paper

Pattern and Implementation of 800VA Uninterrupted Power Supply

S. Narasimha* , P. Laxman**
* Professor, Department of Electrical and Electronics Engineering, TKR College of Engineering and Technology (Autonomous), Hyderabad, India.
** Assistant Professor, Department of Electrical and Electronics Engineering, Scient Institute of Technology, Hyderabad, India.
Narasimha, S., and Lxman, P. (2018). Pattern and Implementation of 800VA Uninterrupted Power Supply. i-manager’s Journal on Power Systems Engineering, 6(1), 14-25. https://doi.org/10.26634/jps.6.1.14205

Abstract

In this paper, the proposed design is made to use the home appliances even in the absence of Alternating Current (AC) main power supply. The main characteristics of the design is that it produces pure sine wave as output without any harmonic distortion in Uninterrupted Power Supply(UPS). The change over time is very small which will result in no reboot of the computer connected to the UPS equipment. In this work, the 800 VA, single phase UPS system has been designed and implemented successfully. It has been examined with various types of loads with low cost

Research Paper

A New Hybrid Cuckoo Search-Artificial Bee Colony Approach for Optimal Placing of UPFC Considering Contingencies

Siva Sankar Akumalla* , Bharath Kumar Polineni **, Sujatha Peddakotla ***
* Senior Lecturer, Department of Electrical and Electronics Engineering, Government Polytechnic, Proddatur, Kadapa, Andhra Pradesh , India.
** Lecturer, Department of Electrical and Electronics Engineering, JNTUA College of Engineering, Ananthapuramu, Andhra Pradesh, India.
*** Professor, Department of Electrical and Electronics Engineering, JNTUA College of Engineering, Ananthapuramu, Andhra Pradesh, India.
Akumalla, S, S., Polineni, B. K., and Peddakotla, S. (2018). A New Hybrid Cuckoo Search-Artificial Bee Colony Approach for Optimal Placing of UPFC Considering Contingencies. i-manager’s Journal on Power Systems Engineering, 6(1), 26-34. https://doi.org/10.26634/jps.6.1.14308

Abstract

The Optimal Power Flow (OPF) is a specialised area of power system, that generally requires solving nonlinear optimization problems. The OPF formulation, when includes generators' operating constraints and Flexible AC Transmission Systems (FACTS) devices becomes profoundly complicate multi-objective optimization problem. To target the multi-objective solution, Metaheuristic algorithms have been favored as they give promising results in many such optimization cases. Herein, developing and evaluating a new hybrid method, such as a blend of two simulation-based metaheuristic methods, Cuckoo-Search (CS) and Artificial Bee Colony (ABC) algorithms was focussed. This approach helps the engineer in best locating Unified Power Flow Controller (UPFC), the versatile FACTS' controller, in a multimachine power system to preserve voltage stability and reduce the line power losses under contingencies. The CS algorithm, which was first presented in the mid of 2009 as a novel optimization technique, is motivated by the compel behavior, clearly, brood parasitism of the cuckoos. Here, the ABC feature alters the levy flight behavior and, in consequence, the searching ability of the CS algorithm is enhanced. The test results, when examined on IEEE 30-bus benchmark system, reveal the notable going of the combined approach over the original CS method.

Research Paper

Comparative Analysis of Harmonics by Shunt Active Filter using Resonant Current Control in Distribution System

B. Pattabhiram* , M. Sai Veerraju **
* PG Scholar, Department of Electrical and Electronics Engineering, SRKR engineering College, Bhimavaram, Andhra Pradesh, India.
** Professor, Department of Electrical and Electronics Engineering, SRKR Engineering College, Bhimavaram, Andhra Pradesh, India.
Pattabhiram , B., and Veerraju, M. S., (2018). Comparative Analysis of Harmonics by Shunt Active Filter using Resonant Current Control in Distribution System. i-manager’s Journal on Power Systems Engineering, 6(1), 35-40. https://doi.org/10.26634/jps.6.1.14306

Abstract

Wide-range utilization of nonlinear loads creates harmonic resonance issues in radial distribution system. This paper presents a comparative analysis of harmonic resonance using Proportional Resonant(PR) controller and Fuzzy controller based active filter, by using resonant current control. For controlling active filter as an approximately pure harmonic conductance, collections of different parallel band-pass filters are tuned for resonant current controller at harmonic frequencies. The MATLAB/SIMULINK results demonstrate that the fuzzy logic controller based active filter improves higher damping performance compared with PR controller.

Research Paper

Design of a Grid Connected PV System and Effect of Various Parameters on Energy Generation

Namita P. Deodhe * , Deepak Bankar**
* M.Tech Scholar, Department of Electrical Engineering, Bharati Vidyapeeth College of Engineering (Deemed to be University), Pune, Maharashtra, India.
** Professor and Head, Department of Electrical Engineering, Bharati Vidyapeeth College of Engineering , (Deemed to be University),Pune, Maharashtra, India.
Deodhe, P. N., and Bankar, D. (2018). Design of a Grid Connected PV System and Effect of Various Parameters on Energy Generation. i-manager’s Journal on Power Systems Engineering, 6(1), 41-48. https://doi.org/10.26634/jps.6.1.14023

Abstract

Power is one of the key infrastructures for growth of industry and economy. Over the past two years, India's economy expanded at an average annual rate of 7.3% to 7.6%, placing it among the top five fastest growing nations in the world. To promote the grid connected solar power plant among the residential areas is focused now a days. Photovoltaic system simulation software is very significant to estimate the output from photovoltaic system. This paper introduces PVSyst software for sizing of grid connected photovoltaic system at Bharti Vidyapeeth Deemed University College of Engineering, Pune, Maharashtra, India.

This paper introduces the detailed system design (PV array and Inverter), and system output and system losses are studied using PVSyst software. Also, loss diagram of PV array and Inverter is obtained. By changing tilt angle, optimum output is achieved for the system. Plant of AC capacity of 100kW is simulated in the software and it was found that the optimal energy generation will be at 18° tilt angle, which can provide electricity to university throughout the year. Pitch is varied to get optimum output. Also simulations for various PV cell technologies are carried out.