Optimal placement of protective devices for improving reliability indices in Microgrid system

An increasing penetration of distributed generation (DG) in distribution systems has led to the concept of Microgrid. Reliability enhancement is one of benefits of Microgrid system because it can operate in both grid-connected mode and islanding mode. However, system protection is one of the important issues in Microgrid planning because operation mode and location of protective devices have effect on system reliability. This paper will present an algorithm to determine an optimal placement of protective devices in Microgrid system for improving reliability indices considering operation mode. The objective functions are to minimize three reliability indices that are system average interruption frequency index (SAIFI), system average interruption duration index (SAIDI) and energy not supplied (ENS). The proposed algorithms for solving the optimization problem and reliability evaluation are Particle Swarm Optimization (PSO) and Monte Carlo Simulation (MCS), respectively. Simulation results of implementing the proposed approach on modified feeder4 of RBTS bus 6 show the performance of this method.

[1]  M. Tadayon,et al.  A new method for optimal RCS placement in distribution power system considering DG islanding impact on reliability , 2009, 2009 Transmission & Distribution Conference & Exposition: Asia and Pacific.

[2]  Roy Billinton,et al.  A test system for teaching overall power system reliability assessment , 1996 .

[3]  Amany El-Zonkoly,et al.  Optimal placement of multi-distributed generation units including different load models using particle swarm optimisation , 2011 .

[4]  Wenxia Liu,et al.  Optimal Allocation of Switches in DG Enhanced Distribution Systems , 2011, 2011 Asia-Pacific Power and Energy Engineering Conference.

[5]  D. Singh,et al.  Multiobjective Optimization for DG Planning With Load Models , 2009, IEEE Transactions on Power Systems.

[6]  Roy Billinton,et al.  Optimal switching device placement in radial distribution systems , 1996 .

[7]  H. Askarian Abyaneh,et al.  Protective and switching devices allocation according to total cost minimization by genetic algorithm in distribution systems , 2011, 2011 7th International Conference on Electrical and Electronics Engineering (ELECO).

[8]  Wei-Chang Yeh,et al.  A Particle Swarm Optimization Approach Based on Monte Carlo Simulation for Solving the Complex Network Reliability Problem , 2010, IEEE Transactions on Reliability.

[9]  Gregory Levitin,et al.  Genetic algorithm for optimal sectionalizing in radial distribution systems with alternative supply , 1995 .

[10]  A. M. El-Zonkoly,et al.  Optimal placement of multi-distributed generation units including different load models using particle swarm optimization , 2011, Swarm Evol. Comput..

[11]  Lokesh Prakash Manohar.  Reliability Assessment of a Power Grid with Customer Operated Chp Systems Using Monte Carlo Simulation , 2009 .

[12]  Zhiqian Bo,et al.  MPSO based protective relay coordination for Micro-grid , 2010 .

[13]  Roy Billinton,et al.  A reliability test system for educational purposes-basic distribution system data and results , 1991 .

[14]  Arturo Suman Bretas,et al.  Optimal distribution protection design considering momentary and sustained reliability indices , 2010, 2010 Modern Electric Power Systems.

[15]  Mohamed Zellagui,et al.  Application MPSO Techniques for Setting Zones on Distance Protection in Presence Thyristor Controlled Series Capacitor , 2013 .

[16]  Patrik Hilber,et al.  Maintenance Optimization for Power Distribution Systems , 2008 .

[17]  Gerald T Heydt,et al.  Distribution System Reliability Evaluation Using Enhanced Samples in a Monte Carlo Approach , 2010, IEEE Transactions on Power Systems.

[18]  M.-R. Haghifam,et al.  Optimal placement of protective devices in distribution networks based on risk analysis , 2010, 2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA).

[19]  Ulaş Kılıç,et al.  Artificial bee colony algorithm solution for optimal reactive power flow , 2012, Appl. Soft Comput..

[20]  M. Fotuhi-Firuzabad,et al.  Optimized Sectionalizing Switch Placement Strategy in Distribution Systems , 2012, IEEE Transactions on Power Delivery.

[21]  Lingfeng Wang,et al.  Reliability-Constrained Optimum Placement of Reclosers and Distributed Generators in Distribution Networks Using an Ant Colony System Algorithm , 2008, IEEE Transactions on Systems, Man, and Cybernetics, Part C (Applications and Reviews).

[22]  F. Von Zuben,et al.  Optimal allocation of remote controlled switches in radial distribution systems , 2012, 2012 IEEE Power and Energy Society General Meeting.

[23]  W. Ongsakul,et al.  Improved reliability model and optimal protective device placement in Micro Grid by Improved Binary Particle Swarm Optimization , 2011, 8th International Conference on Power Electronics - ECCE Asia.