M. Venkateswara Rao ¹, Chintalapudi V. Suresh ², S. Sivanagaraju ³

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

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.

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Chintalapudi V. Suresh ¹, M. S. Giridhar ², S. Sivanagaraju ³, U. Ramanaiah ⁴

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

Abstract

Objectives: This paper presents a two stage solution strategy to solve multi objective optimization problem in the presence of Distributed Generators (DG) in planning a primary distribution system. Methods/Statistical Analysis: Using this, the economical aspects such as net savings and the technical aspects such as voltage deviation and section current index objectives are optimized while satisfying system equality and in-equality constraints. The optimum number of DGs and its optimal locations are identified in a given system so as to enhance the system security by minimizing the system power losses. The proposed methodology uses fuzzy decision approach to select the best compromised solution from the total generation Pareto solution as per the operators' requirement. Findings: According to the analytical results, the proposed framework in the presence of DGs enhances the system performance more effectively. Application/Improvements: The feasibility and effectiveness of the proposed method are examined on standard 15-node, 33-node and 69-node test systems.

Keywords

Effect of Distributed Generators, NSMCSA, Optimal Placement, Savings, Section Current Index, Voltage Deviation.

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