Power System Stability Monitoring and Control Using Synchrophasors

停电！停电！我们真的不想这样，在加拿大，我们认为持续供电是理所当然的。在一个开关的翻转，我们 * 打开灯，热，空调，烤箱，微波炉，洗衣机，烘干机等停电造成重大的经济损失，影响 * 福祉，安全和保障的社会。电力公司喜欢减少（如果不是消除）停电的频率或实施适当的措施，以尽快恢复系统。我们面临的挑战是防止事件蔓延成为连锁故障。*世界各地的停电事故清楚地表明，电力系统是如何变得脆弱的，造成了重大的经济损失。现在必须考虑的电力公用事业行业的一些趋势是电力基础设施老化，劳动力老化以及可再生能源的增长等，确保安全可靠的电力供应所需的任务非常复杂。同步相量技术是过去十年中引入的最重要的电网监测和控制中心数据改进工具。同步相量是时间同步相量测量。相量测量单元（PMU）是电力系统应用中最广泛的同步测量设备。每个PMU通常监控6-8个相量，例如电压、电流和频率，所有这些都使用全球定位系统（GPS）卫星进行时间戳同步。随着PMU在不同公用事业中安装数量的增加，需要开发利用同步相量技术潜力的实时工具。这就是拟议研究背后的动机。使用医学类比，可以将常规测量（使用监控和数据采集系统）视为X射线，将PMU测量视为MRI。在这个建议中的新的和创新的方法是一个综合的方法，稳定性监测和控制的电力系统使用现有的同步相量测量。作为示例，当电力系统响应被预测为不稳定时，稳定性控制器将命令补救措施。时间同步的测量为实施这些控制提供了起点。电压稳定监测与控制和暂态稳定监测与控制将是本研究的重点。*这项研究的重大贡献将是利用同步相量的能力提高电力系统性能的战略的发展。这项发现补助金将为许多研究生提供机会，发展他们的技能，并在电力公用事业应用同步相量技术方面变得足智多谋。特别是对于加拿大电力公司的研究结果将是有用的，在运行的电力系统具有高水平的安全性。

Blackout ! Blackout ! We really do not want it. In Canada, we take continuous electricity supply for granted. At the flip of a switch, we***turn on lights, heat, air conditioners, ovens, microwaves, washers, dryers, etc. Blackouts cause significant economic loss, affect the***well-being, safety and security of a society. Power companies like to reduce (if not eliminate) the frequency of blackouts or implement***suitable measures to restore the system as quickly as possible. The challenge is to prevent events from spreading into cascading failure.***The blackouts in different part of the world have shown clearly how the power system can become vulnerable, causing significant***economic loss. Some of the trends in the electric utility industry that must be considered now are the aging electrical infrastructure, the***aging workforce, and the growth of renewable energy sources etc. The tasks required to ensure a secure and reliable supply of electrical***energy are very complex.***Synchrophasor technology is the most significant electric grid monitoring and control center data improvement tool introduced over the past decade. Synchrophasors are time-synchronized phasor measurements. Phasor measurement units (PMUs) are the most widely used synchronized measurement devices for power system applications. Each PMU typically monitors 6-8 phasor quantities, such as voltages, currents, and frequency, all of which are time-stamp synchronized using a global positioning system (GPS) satellite. With the increasing number of PMU installations in different utilities, there is a need to develop real-time tools which utilize the potential of synchrophasor technology. This is the motivation behind the proposed research. Using a medical analogy, one can think of the conventional measurements (using Supervisory Control and Data Acquistion systems) as X-Ray and PMU measurements as MRI.****The new and innovative approach in this proposal is an integrated approach to stability monitoring and control of power systems using available synchrophasor measurements. As an example, when the power system response is predicted to be unstable, remedial actions will be ordered by the stability controller. Time-synchronized measurements provide the starting point for the implementation of these controls. Voltage stability monitoring and control and transient stability monitoring and control will be the key focus of this research.***The significant contributions of this research will be the development of strategies for power system performance enhancement using the capabilities of synchrophasors. This Discovery Grant will provide opportunities for many Graduate students to develop their skills and ***become resourceful in applying synchrophasor technology for electric power utilities. Particularly for Canadian electric utilities the results of the research will be useful in operating the power system with a high level of security.