Secure and reliable opertation of the grid requires real time monitoring and control of entire power system. Phasor measurement units (PMU) are being deployed for real time monitoring and analysis of power system. The most important factor to be considered in placement problem is observability of power system with minimum number of PMUs. This paper proposed an Integer Linear Programming (ILP) b...

In order to obtain the transient power system measurement information, Wide Area Monitoring Systems (WAMS) should be able to collect Phasor Measurement Unit (PMU) data in a timely manner. Therefore along with the continual deployment of PMUs in Great Britain (GB) transmission system substations, a high performance communications infrastructure is becoming essential with regard to the establishm...

The volatile and intermittent nature of distributed generators (DGs) in active distribution networks (ADNs) increases the uncertainty operating states. introduction phasor measurement units (D-PMUs) enhances monitoring level. trade-offs computational performance robustness state estimation network states are great significance for ADNs with D-PMUs DGs. This paper proposes a second-order cone pr...

Phasor measurement units (PMUs) are considered as a promising tool for future monitoring, protection and control of power systems. In this paper, a novel approach is proposed in order to determine the optimal number and locations of PMUs to make the power system observable. The PMU placement problem is formulated as a binary integer linear programming, in which the binary decision variables (0,...

In this paper, an adaptive virtual inertia-damping system based on model predictive control (MPC) is proposed to enhance the frequency dynamic performance of islanded microgrids (MGs) considering a high penetration level renewable energy sources (RESs). Recently, large amount RESs replacing traditional generating units, causing undesirable effect MG stability and inertia, thus weakening MG. The...

The awareness of the state of the power grid, such as voltage magnitude, frequency and phasor angle is critical to maintain reliable and stable operations of the power grid. Synchronized by a common timing source, synchrophasors measure the electrical waves on power grids. The collected data are transmitted to the central server for further data processing and analysis, such as abnormal event d...

This paper presents a novel algorithm for recovering missing data of phasor measurement units (PMUs). Due to the low-rank property of PMU data, missing measurement recovery can be formulated as a low-rank matrix-completion problem. Based on maximum-margin matrix factorization, we propose an efficient algorithm based on alternating direction method of multipliers (ADMM) for solving the matrix co...

This paper is concerned with modeling and analysis of an interconnected electric power system for frequency ranges in which phasor dynamics of transmission lines and loads may be important to include. In most studies, only phasor dynamics of generators are taken into account. Dynamics of all other system components (transmission lines, loads, and generator stator windings) are assumed stable an...

The traditional black-box Thevenin equivalent method cannot analyze the influence mechanism of wind power integration on parameters. With increase in penetration, it will be difficult to accurately assess voltage stability systems with power. Therefore, a analytical is proposed system This adopts model based current source model. It establishes for by dividing node types. Then, expressions para...