Optimal PMU placement based on improved binary artificial bee colony algorithm

In this paper, a new method called the improved binary artificial bee colony algorithm(ABC) is applied to solve the optimal phasor measurement units (PMU) placement problem, this method has redefined the neighborhood of the food source, so a new equation takes place of a traditional equation in the step of generating new solutions. In addition, the penalty function and the weighting factor are used to modify the objective function, this modification can make power system fully observable while using fewer PMU and having higher measurement redundancy. What's more, a topological conversion is used to modified the connectivity matrix, so the newly proposed method can be applied to different situation such as the presence of zero injection buses (ZIB) and conventional flow measurements (CFM). And the newly proposed method has an advantage, it can get reasonable results no matter single CFM or multiple CFM connected to the bus. Finally, the newly proposed method is verified in two standard IEEE system, and the obtained results have verified the effectiveness of the improved binary ABC.