期刊名称：International Journal of Soft Computing & Engineering
电子版ISSN：2231-2307
出版年度：2012
卷号：2
期号：2
页码：366-373
出版社：International Journal of Soft Computing & Engineering
摘要：This paper shows various cases under which optimal PMU placement is done. Zero injection busses are also considered for the placement problem which reduces the number of PMU required. For this topology method is used. In case of failure of single PMU, the reliability of the system should be improved. For this the problem formulation is modified according to which each bus is observed by at least two PMUs. The PMU placement is then used to get data for state estimation. The results-voltages and phase angles of bus system are compared with and without PMU using two algorithms- WLS and LAV. It is found that LAV is better algorithm than WLS and errors are reduced if the PMU measurements are included. The PMU data is also used for the voltage stability analysis using two indices- FVSI and LQP. Contingency analysis is done using these under different operating conditions to get an idea of stressful situation of lines randomly chosen.
关键词：PMU; WLS and LAV; using two indices-FVSI;and LQP.
