مسعود هاشمي شرف ابادسفلي

With the ever-increasing consumption of electrical energy and the emergence of the phenomenon of restructuring in power networks and the existence of problems such as extensive blackouts of the power systems, etc., has increased the desire of power network operators to use WAMS instead of SCADA. On the other hand, taking into account that the basis of the work of extensive measurement systems is based on the placement of phasor measuring units in the power systems. It is considered a new proposal for safe and reliable operation of the power grid. Considering the high cost and budget limitations of power companies, installing PMUs in all buses is not cost-effective to provide network visibility. Therefore, the sufficient number and appropriate location of PMUs has raised the issue of optimal placement of PMUs as a challenge and research field. Since the goal of solving the problem of optimal placement of PMU is to minimize the number of PMUs in order to reduce the cost and maximize the visibility in order to increase the reliability of the network, therefore, this problem is considered as a multi-objective problem. Since the nature of the problem presented in this thesis is a multi-objective binary problem, a discrete or binary model of the Harris Hawk optimization Algorithm (HHO) is presented under the name Binary Harris hawks optimization Algorithm (BHHO) and further on with Taking from other algorithms such as multi-objective particle swarm optimization algorithm (MOPSO) and some other techniques, a new multi-objective algorithm called multi-objective Binary Harris-Hawks Algorithm based on Region selection (MOBHHO/R) has also been presented. . At the end of the problem of optimal placement of PMU, taking into account considerations and limitations such as zero connection bus, etc., using the proposed algorithm in the form of two scenarios on the standard IEEE 14 and 30 bus power systems, and the performance of the proposed algorithm compared to other Algorithms have been eva‎luated. The results show the superiority of the proposed algorithm compared to other algorithms.

جايابي بهينه واحد اندازه¬گير فازور , رؤيت¬پذيري , الگوريتم شاهين شكاري هريس چندهدفه

Optimal PMU Placement , Observability , multi-objective Harris-Hawks optimization algorithm

Masoud Hashemi sharafabad sofla

Dr. Mohsen Kalantar