On measurement unit placement for smart electrical grid fault localization

The use of conventional power flow measurements along with the phasor measurements from newly developed PMUs help us to achieve a cost effective solution for fault localization in power transmission network. However, the development of a methodology for the joint optimal placement of PMUs and power flow units in a transmission network is challenging. To this aim, we have proposed an optimization problem which can be solved using integer linear programming (ILP) implementation. We found that under mild assumptions we can develop a linear mathematical equation for fault localization by using the data from measurement units. The performance is evaluated by applying it for fault detection in IEEE bus systems.