Appropriate placement of synchrophasor meters will save huge capital investment and give improved wide area monitoring, control, and protection. Being costly and having flexible channel capacity, the synchrophasor meters should be placed judiciously in the network to avoid unnecessary expenses. In this paper, the practical cost assessment of phasor measurement unit (PMU) placement has been done for different placement strategies considering different network contingencies for the first time. Cost study has further been investigated for the placement strategies in the presence/absence of dual-use line relays (DULRs). Different combinations of synchrophasor measurement meters (PMU and DULR) along with channel limitation property of the meters have been utilized to minimize the cost of observability. Modified Binary Symbiotic Organisms Search (MBSOS) has been used for the first time to solve the optimal PMU placement (OPP) problem. The simulated results show that the proposed method can give techno-economical solutions for various synchrophasor meter placement (SMP) strategies.

适当放置同步相量计将节省大量资本投资，并改善广域监视，控制和保护。同步相量计价格昂贵且具有灵活的信道容量，因此应明智地将其放置在网络中，以避免不必要的花费。本文首次针对不同的网络突发事件，针对不同的放置策略进行了相量测量单元（PMU）放置的实际成本评估。在有/没有两用线路继电器（DULR）的情况下，针对放置策略的成本研究已得到进一步研究。同步相量测量仪（PMU和DULR）的不同组合以及测量仪的通道限制特性已被用于使可观察性成本最小化。修改后的二元共生生物搜索（MBSOS）首次用于解决最佳PMU放置（OPP）问题。仿真结果表明，该方法可以为各种同步相量计放置（SMP）策略提供技术经济的解决方案。