System stability study is the important parameter of economic, reliable and secure power system planning and operation. Power system studies are important during the planning and conceptual design stages of the project as well as during the operating life of the plant periodically. This paper presents the power system stability analysis for IEEE9 bus test system. The fault is created on differe...

Using ambient excited data under PMU measurements to identify the low frequency oscillation mode and oscillation modes parameter information corresponding, has good prospects in power system analysis and control. This article discusses the applicability by using the natural excitation technique (NExT) in conjunction with the eigensystem realization algorithm for low frequency oscillation modes ...

This paper presents the solution of economic load dispatch (ELD) with Lineflow constraints through the application of genetic algorithm (GA). Two representative systems, i.e. IEEE 14 bus [Calculations and programs for power system networks (1986)] and IEEE 30 bus [Calculations and programs for power system networks (1986)] systems have been considered for the investigations. The ELD results wit...

This paper describes research into the application of evolutionary algorithms for generating failure scenarios for bulk power systems. We focus on a modified Ward Hale 6 bus system. An evolutionary algorithm is presented in detail. The developed EA proves to perform well on the test system and successfully generates a ‘compact’ failure scenario, requiring delibrate outaging of only two out of s...

This paper presents a performance comparison between three optimization techniques, namely, quantum-inspired binary particle swarm optimization, binary particle swarm optimization and genetic algorithm in application to optimal power quality monitor (PQM) placement method for voltage sag assessment. The optimization handles the observability constraints based on the topological monitor reach ar...

State estimation and power flow analysis are important tools for analysis, operation and planning of a power system. In this paper, a new state estimation method based on the extended weighted least squares (WLS) method for considering both measurement errors and model inaccuracy is presented. Two bus, three bus, and IEEE 14 bus test cases are employed to evaluate the accuracy of the method. Th...

The optimal reactive power dispatch (ORPD) is a complex, nonlinear, and constrained optimization problem. This paper presents the application of new metaheuristic technique called slime mold algorithm (SMA) for solving developed objective function ORPD combining with renewable energy sources. presented to minimize total operating cost system through minimization all costs, real loss, voltage de...

In this paper, effect of the islands number variation in restoration process is investigated and a graph based method for determination of optimum islands boundaries is presented. Also, the effect of number and location of black-start units on the restoration process is evaluated. In optimization process, objective function is minimizing Energy Not Supplied (ENS) and constraints are voltage mar...

In this paper, we report our experiences and findings on the design of a fault-tolerant bus architecture comprised of two COTS buses, the IEEE 1394 and the I2C. This fault-tolerant bus is the backbone system bus for the avionics architecture of the X2000 program at the Jet Propulsion Laboratory. COTS buses are attractive because of the availability of low cost commercial products. However, they...