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Chandragupta Mauryan, K. S.
- Microcontroller Based Light Load Efficiency Optimization for an AC-DC Converter
Authors
1 EEE Department, VLB Janakiammal College of Engineering and Technology, Coimbatore, IN
2 VLB Janakiammal College of Engineering and Technology, Coimbatore, IN
Source
Programmable Device Circuits and Systems, Vol 3, No 6 (2011), Pagination: 319-322Abstract
In this paper the method of maintaining high power conversion efficiency across the entire load range and its simple microcontroller based circuit implementation is described. This method substantially increases the conversion efficiency at light loads by minimizing switching and driving losses of semiconductor switches, core losses of the magnetic components, as well as transformer losses. These losses are minimized by periodically turning OFF and ON of the power converter. The converter is turned ON only when it operates at power level that exhibits the maximum efficiency and turned OFF at low load and supplied through the battery which is charged simultaneously during high load condition where efficiency is maximum. So eliminating the constant losses which are independent on any load, the efficiency of the system gets improved to considerable amount. The proposed method is implemented for 230/12V single phase fully controlled rectifier.Keywords
Efficiency Optimization, Light Load, Maximum Efficiency, Power Management.
- Analysis and Viability of H.264 Algorithm for Faulty Product Detection
Authors
1 Department of EEE, VLB Janakiammal College of Engineering & Technology, Cbe-42, IN
Source
Programmable Device Circuits and Systems, Vol 3, No 4 (2011), Pagination: 173-176Abstract
In traditional industrial system there is a possibility of faulty products being produced along with the good products. These may sometimes go unnoticed to the packing sector and they mix up with the good ones. This leads to many controversies from the customers. There is a need for automation to detect these faulty products so that only good products are packed and sent out to the world and the status of the company is maintained. The implementation is done by attaching a video camera over the conveyor where the finished products come out. The implementation also has a compression process to compress and store the captured frame to store it for future reference. H.264 algorithm is used here for compression. This uses discrete cosine transform to do the compression.Keywords
Sobel Operator, H.264 Algorithm.- Improved Particle Swarm Algorithm Applied to Optimal Real Power Loss Control
Authors
1 Department of Electrical and Electronics Engineering, VLB Janakiammal College of Engineering and Technology, Coimbatore, IN
2 Akshaya College of Engineering and Technology, Coimbatore, IN
3 VLB Janakiammal College of Engineering and Technology, Coimbatore, IN
Source
Programmable Device Circuits and Systems, Vol 3, No 4 (2011), Pagination: 187-192Abstract
This paper presents an optimization algorithm to solve the optimal real power loss control problem. In PSO, particle studies from itself and the best one among the group only. In the proposed Improved Particle Swarm Optimization (IPSO) it studies from itself, the best one among the group and also from neighboring particles. By this enhanced behavior of IPSO, the opportunity to find the global solution is guaranteed and the speed of convergence is improved. The feasibility of the proposed method is demonstrated and results are compared with classical PSO. The developed IPSO has been tested on 6 bus Ward-Hale system and modified IEEE 14 bus system for optimal real power loss control problem.Keywords
IEEE 14 Bus Systems, Improved Particle Swarm Optimization, Optimal Real Power Control, Ward-Hale 6 Bus System.- Optimization of Reactive Power Using Colonial Algorithm
Authors
1 Department of Electrical and Electronics Engineering, Sri Krishna College of Technology, Coimbatore, IN
2 Akshaya College of Engineering and Technology, Coimbatore, IN
3 Department of Electrical and Electronics Engineering, Sri Krishna College of Technology, Coimbatore, IN
Source
Automation and Autonomous Systems, Vol 4, No 4 (2012), Pagination: 130-135Abstract
This paper presents the algorithm to optimize the reactive power using colonial behavior of the ants. The reactive power problem has become a major threat and has been given much of importance since many blackouts occurred in USA and some European countries. The reactive power is essential to drive the active or real power that is needed on the load side. Especially the generator and transformer loads require reactive power for efficient functioning. But excess amount of the reactive power increases the loss as it contributes nothing to the load. The voltage profile is made as the major concern and it is modified using the proposed algorithm in order to minimize the loss. In this proposal of ant colonization algorithm, the particle taken to consideration interacts with its surroundings and its neighboring particles. Thereby the particle is updated periodically. By this phenomena the power flow problem at various points are updated periodically from which the optimization is being performed. Though various other algorithms have dealt with the same issue the ant algorithm provides a better result at higher convergence rate with better voltage profile. The developed algorithm deals with IEEE 14 bus system.