PV-grid Performance improvement through Integrated Intelligent Water Drop Optimization with Neural Network for Maximum Power Point Tracking
A Digital Healthcare Monitoring System with Real-Time Analysis
Advancements in Smart Meter Design and Integration for Enhanced Energy Management and Efficiency
Electric Vehicles in Modern Transportation: Environmental Impacts, Configurations, and Future Trends – A Review
GTO Technique Based Hybrid Power System Controller Design
Design and Development Of Paddy Cutter Using Solar Energy
Design Of Double-Input DC-DC Converter (DIC) Solar PV-Battery Hybrid Power System
Comparison of Harmonics, THD and Temperature Analysis of 3-Phase Induction Motor with Normal Inverter Drive and 5-Level DCMI Drive
Application of Whale Optimization Algorithm for Distribution Feeder Reconfiguration
Detection and Classification of Single Line to Ground Boundary Faults in a 138 kV Six Phase Transmission Line using Hilbert Huang Transform
The Modeling of Analogue Systems through an Object-Oriented Design Method
Circuit Design Techniques for Electromagnetic Compliance
A Technological Forecast for Growth in Solid-State Commercial Lighting using LED Devices
Testing of Analogue Design Rules Using a Digital Interface
Simulation and Transient Analysis of PWM Inverter Fed Squirrel Cage Induction Motor Drives
Subsynchronous resonance (SSR) oscillations is a problem of great interest in the industry. SSR causes torsional oscillations with ever-increasing amplitudes occurring in the machine shaft sections resulting in a significant premature loss of fatigue life of the shaft metal with the consequent irrevocable fatigue cracks or even a shaft fracture. The main objective of this article is to implement a modern dynamic braking resistor model, namely rectifier controlled braking resistor, controlled via fuzzy logic controller for tempering SSR oscillations. The proposed scheme is authenticated in this work using the wellknown IEEE second benchmark model via MATLAB/Simulink-based modeling and simulation environment. Comparative simulation study of the test system with and without the proposed scheme should demonstrate its effectuality for mitigation of SSR oscillations.
This work focuses on a unique approach for an on-line adaptive tuning of Support Vector Machine (SVM) controller to regulate power system frequency whenever load perturbation occurs. A multi-area power system integrating with Hybrid Wind-Diesel system is considered for the present analysis. The proposed SVM controller is trained by input-output dataset of Proportional-Integral-Derivative (PID)-Load Frequency Controller. Primarily, the SVM controller is trained and analyzed with a three-area, nine-machine power system by neglecting system non-linearities. Further, to account for real-time conditions of the power system, all non-linearities and system uncertainties including variable wind input power are considered for the simulation to test the efficacy of the designed controller. The results show the robustness of the designed SVM controller over conventional PID controller. SVM based Load Frequency Controller ensures the zero steady state error for deviations in the frequency and maintaining minimum over/undershoots, the settling time of the frequency and deviation in the tie-line power under all operating conditions.
This paper proposes a novel method of rapid calculation of the peak amplitude of the power surge at one of the AC side in the asynchronous grid connected with a HVDC network due to other AC side fault. The proposed approach is based on simple linear modeling of a HVDC network connecting two asynchronous AC grids. The proposed approach helps in the rapid estimation of peak value of power surge at the AC grid and hence quickly initiating protection measures. The proposed method has been implemented on standard PSCAD HVDC system and results have been compared with calculated values which verify the aforementioned approach.
Several renewable sources are utilized with parallel operation with sharing of load depending on dynamic changes in the environmental parameters. Compared to other renewable energy sources, wind is the second largest and highest energy sharing renewable energy source. However, the initial construction cost is high as compared to other renewable sources. After wind systems, solar power generation (PVA) are considered to be most promising renewable sources followed by fuel cell stack. In this paper, we have modeled a standalone renewable source microgrid with multiple sources, viz. wind power generation using PMSG, PVA and battery storage system. Performance of each source is done with respect to variation of load and variation of source parameters such as wind speed, irradiation, temperature and state of charge of the battery. For backup power supply to the load during failure of the renewable sources a battery storage source is provided. This storage source (battery) can be charged when excess power is generated from the solar (PVA) and wind power generation system. Analysis on each sources with dynamic changes of parameters are produced with explanatory graphical representations is done using ‘powergui’ block available in MATLAB Simulink software.
In last few years, photovoltaic (PV) system become quite popular in domestic level to due to generate electricity, technical feasibility and easy installation. Government is also promoting this by providing subsidies to install solar PV systems. In this study, grid integrated solar PV system is proposed and various powers quality issues in integration are studied. The proposed system comprises of a PV system with variable irradiance which gives variable voltage and current, the PWM type inverter is used to reduce harmonic and convert DC power into AC power for grid integration. These results show various power quality (PQ) issues, i.e., voltage sag swell and harmonic distortion during grid integration occurs on grid. The STATCOM based compensator is proposed to improve power quality to keep different problems within the IEEE standards. The proposed model is developed, simulated and analyzed in MATLAB /SIMULINK environment and the results are discussed.