Optimal phasor measurement unit placement for numerical observability in the presence of conventional measurements using semi-definite programming

PROJECT TITLE :

Optimal phasor measurement unit placement for numerical observability in the presence of conventional measurements using semi-definite programming

ABSTRACT:

This study presents a brand new approach for optimal placement of synchronised phasor measurement units (PMUs) to ensure complete Power System observability in the presence of non-synchronous standard measurements and zero injections. Currently, financial or technical restrictions prohibit the deployment of PMUs on each bus, which in flip motivates their strategic placement across the ability system. PMU allocation is optimised here based mostly on measurement observability criteria for achieving solvability of the ability system state estimation. Most of the previous work has proposed topological observability based mostly methods for optimal PMU placement (OPP), which may not perpetually guarantee numerical observability required for successful execution of state estimation. The proposed OPP method finds out the minimum variety and therefore the optimal locations of PMUs needed to create the Power System numerically observable. The matter is formulated as a binary semi-definite programming (BSDP) model, with binary call variables, minimising a linear objective operate subject to linear matrix inequality observability constraints. The BSDP problem is solved using an outer approximation theme based mostly on binary integer linear programming. The developed technique is conducted on IEEE customary test systems. A large-scale system with 3120 buses is also analysed to exhibit the applicability of proposed model to sensible Power System cases.

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