Wide-area control (WAC) of power systems is highly depended on synchronized measurements provided by the phasor measurement units (PMUs). However, the contemporary measurement chain and the communication network are far from ideal. Therefore, it is essential to identify the impact of the availability and quality of the synchronized measurements, on the wide-area controller's performance. This paper examines the effect of measurement errors and delays/dropouts on the damping capability of the wide-area controller. The measurement errors considered in this paper are according to the dynamic compliance requirements of the PMU during disturbances as it is imposed in the IEEE Synchrophasor Standard C37.118.1-2011. The delays are separated into measurement and feedback delays. The results indicate that delays along with dropouts deteriorate significantly the WAC performance, while the consideration of only the measurement errors (steady state and dynamic) in the simulation environment has a minor effect on its operation. For this reason, a linear predictor is proposed to compensate effectively and timely all the system's delays. The case studies are conducted on the IEEE 39-bus system and evaluated through the Prony analysis tool.

中文翻译：

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基于IEEE Std C37.118.1-2011的广域控制中的测量误差和延迟：影响和补偿

电力系统的广域控制（WAC）高度依赖于相量测量单元（PMU）提供的同步测量。但是，当代的测量链和通信网络远非理想。因此，必须确定同步测量的可用性和质量对广域控制器性能的影响。本文研究了测量误差和延迟/丢失对广域控制器阻尼能力的影响。本文考虑的测量误差是根据PMU在IEEE同步相量标准C37.118.1-2011中施加的动态顺应性要求而制定的。延迟分为测量延迟和反馈延迟。结果表明，延迟和丢失会大大降低WAC性能，而仅考虑仿真环境中的测量误差（稳态和动态）对其操作的影响较小。因此，提出了一种线性预测器，以有效及时地补偿系统的所有延迟。案例研究在IEEE 39总线系统上进行，并通过Prony分析工具进行了评估。