Phasor assisted state estimation for NYS transmission system --Implementation & testing
Phasor assisted state estimation for NYS transmission system --Implementation & testing
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纽约州输电系统相量辅助状态估计--实现
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
B. Fardanesh
中科院分区：
文献类型：
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作者：
A. Ghassemian;B. Fardanesh
本文介绍了纽约电力局 (NYPA) 工业状态估计中相量测量的实施、测试和性能。具有 GPS 同步功能的相量测量单元 (PMU) 被纳入能源管理系统 (EMS) 的数据采集子系统中。修改后的状态估计器经过了现场安装前和安装后测试。进行预现场安装测试是为了验证求解算法的正确性，确定相量计量精度对估计器求解质量的影响，显示相量测量相对于其他测量的相对有效性，确定参考总线选择的影响，检测 PMU 对状态估计器收敛的影响，并确定 PMU 所需的最小时钟同步采样精度 [10]。进行后现场安装测试是为了使用实时数据来确定状态估计器解决方案中 PMU 的有效性，并检测时间偏差和测量权重对状态估计器解决方案的影响。
This paper describes the implementation, testing, and performance of phasor measurements in an industrial state estimation at the New York Power Authority (NYPA). Phasor Measurement Units (PMU) with GPS synchronization were incorporated into the data acquisition subsystem of the Energy Management System (EMS). The modified State Estimator was subjected to pre- and post-field installation testing. The pre-field installation testing was done to verify the correctness of the solution algorithm, to identify the impact of phasor metering accuracy on the quality of estimator solution, to show the relative effectiveness of phasor measurements with respect to other measurements, to identify the effect of the reference bus selection, to detect the impact of PMUs on the State Estimator convergence, and to establish the minimum clock synchronization sampling accuracy required for the PMUs [10]. The post-field installation tests were conducted to identify the effectiveness of the PMUs in the State Estimator solution using the real-time data as well as to detect the effect of time skewing and measurement weights on the State Estimator solution.