Optimal PMU Placement Considering Controlled Islanding of Power System

Optimal PMU Placement Considering Controlled Islanding of Power System
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考虑电力系统受控孤岛的PMU优化布局

DOI:
10.1109/tpwrs.2013.2285578
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发表时间:
2014-03
影响因子:
6.6
通讯作者:
Wu, Z.
Wu, Z.
中科院分区:
工程技术1区
文献类型:
--
作者:
Huang, L.;Sun, Y.;Xu, J.;Gao, W.;Zhang, J.;Wu, Z.

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提出了一种考虑电力系统受控孤岛的最优相量测量单元(PMU)配置模型,使电网在受控孤岛条件下和正常运行状态下均保持可观测状态。该模型的优化目标是最小化PMU的安装数量和最大化测量冗余度。将这两个目标与一个加权变量相结合,从模型中得到具有最小PMU数目和最大测量冗余度的最优解。为了减少所需的PMU数量,考虑了零注入母线的影响,并将其纳入模型中。此外,还推导了在单个PMU故障或线损后保持可观测性的附加约束。最后,用几个IEEE标准系统和波兰2383节点系统对该模型进行了验证。仿真结果验证了该方法的有效性。
This paper proposes an optimal phasor measurement unit (PMU) placement model considering power system controlled islanding so that the power network remains observable under controlled islanding condition as well as normal operation condition. The optimization objectives of proposed model are to minimize the number of installed PMUs and to maximize the measurement redundancy. These two objectives are combined together with a weighting variable so that the optimal solution with minimum PMU number and maximum measurement redundancy would be obtained from the model. To reduce the number of required PMUs, the effect of zero-injection bus is considered and incorporated into the model. Furthermore, additional constraints for maintaining observability following single PMU failure or line loss are also derived. At last, several IEEE standard systems and the Polish 2383-bus system are employed to test the presented model. Results are presented to demonstrate the effectiveness of the proposed method.
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