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Elimination of partial overloading of generators Under Unbalanced Operating Conditions of Power Systems

CSEE Journal of Power and Energy Systems 2016年第1期2卷 81-87页

作者： Sudhakar Reddy Sama Subrata Paul Sunita Halder Nee Dey Department of Technical Education Andhra PradeshIndia Department of Electrical Engineering Jadavpur UniversityKolkataIndia

Unbalanced operating condition in a power system can cause partial overloading of the generators in the network,a condition where one or two of the three phases of the generator become overloaded even if the total 3-phase power output of the generator is within its specified *** overloading of generators beyond certain limits is undesirable and must be *** systems are often subjected to highly unbalanced operating *** of distributed generations(DGs),therefore,has rendered today’s distribution systems quite susceptible to this *** of this problem requires the issue to be addressed properly during analysis,operation and planning of such ***,operation and planning of power networks under unbalanced operating condition require 3-phase load flow *** existing methods of 3-phase load flow are not equipped to take into account any limit on the loadings of the individual phases of the *** the present work,a methodology based on NewtonRaphson(N-R)3-phase load flow with necessary modifications is *** proposed methodology is able to determine the safe loading limits of the generators,and,can be adopted for operation and planning of power networks under unbalanced operating conditions to overcome the above *** results on IEEE-37 bus feeder network are presented to demonstrate the effectiveness of the proposed method.

关键词： Newton Raphson 3-phase load flow partial overloading of generators unbalanced operating condition of power systems

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