Monitoring and controlling of power systems using phasor measurement data

拟议的研究计划的主要目标是开发新的监测和控制技术 电力系统，以最大限度地利用现有基础设施，并最大限度地减少可能导致 到重大停电/停电。相量测量单元(PMU)的成功应用使之成为现实 电力系统的时间监控成为现实。随着电力部门测量数据的可用性 在这一系统中，该行业现在需要使用这些数据的有效方法。拟议的研究计划将 调查满足这一需求的两个方面。为了进行监控，需要高效而准确的方法来提取对系统操作员有意义的有用信息。这些有意义的信息包括电力系统当前的运行状态是否安全、电力系统是否以足够的稳定裕度运行，以及是否有任何可用的预防措施。根据拟议的研究计划，将有几个项目致力于电力系统的适当建模和开发数学工具，以向系统操作员提供此类信息。利用相量测量单位数据的第二个级别是用于控制。广域测量技术已经非常成熟。将这项技术提升到下一个水平，即使用PMU测量作为反馈信号来控制设备，需要技术上的巨大飞跃。虽然这项新技术为控制器设计提供了更多的自由度，但挑战在于开发能够处理传输延迟并对反馈信号丢失具有鲁棒性的控制算法。这项研究的新颖之处在于开发了控制器设计算法，以利用这种程度的灵活性来实现与系统稳定性相关的多个目标。我的研究小组最近提出的将动态相量应用于次同步共振研究的概念使我们能够以一种新的方式看待次同步共振筛选问题。提出的研究方案也将通过应用频域技术来分析基于电压源控制器的系统的次同步谐振，从而推进这一思想。

The main objective of the proposed research program is to develop new techniques to monitor and control power systems to maximize the use of available infrastructure and minimize risks of instabilities that can lead to major black/brown outs. The successful application of Phasor Measurement Units (PMUs) has made the real time monitoring of power systems a reality. With the availability of the measurements taken across the power system, the industry now needs effective methods of using this data. The proposed research program will investigate two areas of fulfilling this need. For the purpose of monitoring, one needs efficient and accurate methods of extracting useful information that are meaningful to the system operators. Such meaningful information include whether the current operating state of the power system is secure, whether the power system is operating with sufficient margin of stability, and whether there any preventive actions available. Several projects under the proposed research program will be devoted to appropriate modeling of the power system and developing mathematical tools to produce such information to the system operator. The second level of utilizing the phasor measurement unit data is for Control. The technology of wide area measurements is very mature. Taking this technology to the next level, which is to control the devices using PMU measurements as feedback signals, require a quantum leap in technology. While the new technology offers additional degrees of freedom for controller design, the challenge is to develop control algorithms that can handle transport delays and are robust against loss of feedback signals. The novelty of this research is to develop controller design algorithms to utilize this degree of flexibility to achieve multiple system stability related objectives. The concepts of applying dynamic phasors for Sub-synchronous Resonance studies recently presented by my research group enable a new way of looking at the problem of Sub-synchronous Resonance screening. The proposed research program will also advance this idea by applying frequency domain techniques to analyze Sub-synchronous Resonance on Voltage Sourced Controller based systems.