Optimal PMU Placement for Power System State Estimation with Random Communication Packet Losses

XIN TAI; DAMIÁN MARELLI; EDUARDO ROHR; MINYUE FU

Santiago

Conferencia; IEEE International Conference on Control & Automation (ICCA); 2011

Institute of Electrical and Electronics Engineers (IEEE)

Phasor measurement units (PMUs) become impor-tant to state estimation for power systems by providing globallysynchronized measurements of real-time phasors of voltageand currents with a high sampling rate. However the largequantities of measurement data produced by PMUs brings aserious burden to the communication system, which aggravatescommunication constraints such as the packet loss rate. In thispaper, a novel optimization criterion for choosing PMU place-ments is proposed, considering random communication packetlosses. Based on this criterion, a simplified optimal solutionsearching algorithm is given. Finally numerical simulations aregiven to test the validity of this algorithm. The dependence ofthe optimal PMU placement solution on the packet loss rate isindicated as well.