Application of PSAT to Load Flow Analysis with STATCOM under Load Increase Scenario and Line Contingencies

Original Contribution


Load flow analysis is the initial and essential step for any power system computation. It is required for choosing better options for power system expansion to meet with ever increasing load demand. Implementation of Flexible AC Transmission System (FACTS) device like STATCOM, in the load flow, which is having fast and very flexible control, is one of the important tasks for power system researchers. This paper presents a simple and systematic approach for steady state power flow calculations with FACTS controller, static synchronous compensator (STATCOM) using command line usage of MATLAB tool-power system analysis toolbox (PSAT). The complexity of MATLAB language programming increases due to incorporation of STATCOM in an existing Newton–Raphson load flow algorithm. Thus, the main contribution of this paper is to show how command line usage of user friendly MATLAB tool, PSAT, can extensively be used for quicker and wider interpretation of the results of load flow with STATCOM. The novelty of this paper lies in the method of applying the load increase pattern, where the active and reactive loads have been changed simultaneously at all the load buses under consideration for creating stressed conditions for load flow analysis with STATCOM. The performance have been evaluated on many standard IEEE test systems and the results for standard IEEE-30 bus system, IEEE-57 bus system, and IEEE-118 bus system are presented.


Load flow analysis Newton–Raphson (N–R) power flow FACTS STATCOM Voltage stability PSAT 


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Copyright information

© The Institution of Engineers (India) 2017

Authors and Affiliations

  1. 1.Department of Electrical EngineeringP. R. Patil College of EngineeringAmravatiIndia
  2. 2.Department of Electrical EngineeringGovernment College of EngineeringAmravatiIndia

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