Optimum placement of PMU for wide area measurement systems

Wide Area Measurement Systems

A Methodology for Unified Assessment of Physical and Geographical Dependencies of Wide Area Measurement Systems in Smart Grids

Wide Area Measurement Systems (WAMS) enable real time monitoring and control of smart grids by combining digital measurement devices, communication and control systems. As WAMS consist of various infrastructures, they imply complex dependencies among their underlying systems and components of different types, such as cyber, physical and geographical dependencies. Although several works exist in...

Support for Object Placement in Wide Area Heterogeneous Distributed Systems

One of the open challenges in distributed computing systems is determining how to place tasks onto processors when they are needed (in the Legion project being developed at UVA the basic computational units are modelled as objects, so the problem is one of object placement). The placement decision is crucial because it determines the run-time behavior of an object, including performance, cost a...

Replica Placement Strategies for Wide-Area Storage Systems

Wide-area durable storage systems trigger data recovery to maintain target data availability levels. Data recovery needs to be triggered when storage nodes permanently fail, i.e., data is lost. Transient failures, where nodes return from failure with data, add noise to determining that a node has failed permanently. Replica placement strategies maintain data availability while minimizing cost, ...

Optimal PMU Placement in Power System Considering the Measurement Redundancy

In this paper, Integer Programming based methodology is presented for the optimal placement of Phasor Measurement Unit (PMU) that minimizes the cost of installation and provide the entire power system observability. The concepts of zero injection buses are used in this paper for further reduction in number of PMUs. Integer Programming may produce multiple results if neighboring buses to zero in...