Ever-increasing energy demand has led to geographic expansion of transmission lines and their complexity. In addition, higher reliability is expected in the transmission systemsdue to their vital role in power systems. It is very difficult to realize this goal by conventional monitoring and control methods. Thus, phasor measurement units (PMUs) are used to measure system parameters. Although in...

the harmonic in distribution systems becomes an important problem due to an increase in nonlinear loads. this paper presents a new approach based on a graph algorithm for optimum placement of passive harmonic filters in a multi-bus system, which suffers from harmonic current sources. the objective of this paper is to minimize the network loss, the cost of the filter and the total harmonic disto...

With the adoption of the IEEE 1500 [1] Standard, the opportunity exists for System on Chip (SoC) designers to specify test systems in a generic way. As the IEEE 1500 Standard does not address the specification and design of the on-chip Test Access Mechanism (TAM), considerable effort may still be required if test engineers are to optimise testing SoCs with IEEE 1500 Wrapped Cores. This paper de...

Reactive power plays an important role in supporting real power transmission, maintaining system voltages within proper limits and overall system reliability. In this paper, the production cost of reactive power, cost of the system transmission loss, investment cost of capacitor banks and absolute value of total voltage deviation (TVD) are included into the objective function of the power flow ...

This paper proposes a method for the optimal placement of phasor measurement units (PMUs) complete observability power system based on degree neighbourhood vertices. A three-stage algorithm is used to determine minimum number PMUs needed make observable. The key objective proposed methodology minimize total completely observe network and thereby installation cost. In addition, technique also fo...

With the adoption of the IEEE 1500 [1] Standard, the opportunity exists for System on Chip (SoC) designers to specify test systems in a generic way. As the IEEE 1500 Standard does not address the specification and design of the on-chip Test Access Mechanism (TAM), considerable effort may still be required if test engineers are to optimise testing SoCs with IEEE 1500 Wrapped Cores. This paper de...

-  Power system state estimation is a central component in energy management systems of power system. The goal of state estimation is to determine the system status and power flow of transmission lines. This paper presents an advanced state estimation algorithm based on weighted least square (WLS) criteria by introducing virtual meters. For each bus of network, except slack bus, a virtual meter...

in trading electrical energy in deregulated power systems, violation of operation constraints such as transmission lines flow limits is possible. these conditions have been called “congestion”. one of the most important responsibility of independent system operator (iso) is congestion management in a manner that all the system equipments be operated in their nominal ranges. in this paper, usi...

In this study, a multiobjective optimization is applied to Optimal Power Flow Problem (OPF). To effectively achieve this goal, a Multiobjective Ant Lion algorithm (MOALO) is proposed to find the Pareto optimal front for the multiobjective OPF. The aim of this work is to reach good solutions of Active and Reactive OPF problem by optimizing 4-conflicting objective functions simultaneously. Here a...

The harmonic in distribution systems becomes an important problem due to an increase in nonlinear loads. This paper presents a new approach based on a graph algorithm for optimum placement of passive harmonic filters in a multi-bus system, which suffers from harmonic current sources. The objective of this paper is to minimize the network loss, the cost of the filter and the total harmonic disto...