US-Nigeria Cooperative Research: Power Flow Control and Stability Improvement in Longitudinal Power Systems Using Power Flow Controllers

该奖项支持田纳西理工大学电气工程系的Joseph O.Ojo教授和尼日利亚Obafemi Awolowo大学电子和电气工程系的Michael O.Omoigui教授之间为期三年的合作研究项目。研究人员将使用潮流控制器研究纵向电力系统中的潮流控制和稳定性改善。许多发展中国家的电力系统通常很小，而且径向/纵向连接很少，使得它们像孤立系统一样运行。它们容易受到长时间中断、电压电流波动和电压调节不佳的影响，结果是输电和配电系统通常过载。尼日利亚正在从更传统的机械动力系统转向更电子化的系统，该系统将使用基于变流器的设备，从而提供更大的灵活性和改进的操作。研究人员将开发电力系统的模型，并使用它们来分析电力系统在不同条件下使用统一潮流控制器的性能。作为该项目的一部分，他们将研究使用多端、基于变流器的潮流控制器拓扑来改善弱电力系统和纵向电力系统的潮流能力和增强电压系统稳定性，特别是在放松管制的环境中。这个项目结合了Ojo博士在电力电子学方面的专业知识和Omoigi博士在电力系统分析和控制方面的知识。目前在美国，关于小型和纵向电力系统的独特问题的研究很少，但随着更多的美国电力系统放松管制，这些问题将变得越来越重要。预计该项目的成果将为解决纵向电力系统中常见的常年电力系统扰动问题提供可行和有效的解决方案。这两位研究人员在研究生教育方面都有很好的记录，他们也预计这个项目将在他们的学生中发生大量的知识转移。国际科学与工程办公室和电气和通信系统司共同支持这个项目。

0217829OjoThis award supports a three-year collaborative research project between Professor Joseph O. Ojo, with the Department of Electrical Engineering at Tennessee Technological University, and Professor Michael O. Omoigui, with the Department of Electronic and Electrical Engineering at Obafemi Awolowo University in Nigeria. The investigators will study power flow control and stability improvement in longitudinal power systems using power flow controllers.Electric power systems in many developing countries are usually small and radial/longitudinal with little connectivity, making them operate like isolated systems. They are susceptible to lengthy time interruptions, fluctuations in voltage currents, and poor voltage regulation, and as a result the transmission and distribution systems are generally overloaded. Nigeria is moving away from the more traditional mechanical power systems towards a more electronic system that will use converter-based devices, which can then offer greater flexibility and improved operation. The investigators will develop models for the power systems, and use them to analyze the power systems' performance using a unified power flow controller under varying conditions. As part of the project, they will study the use of multi-terminal, converter-based power flow controller topologies to improve power flow capability and enhance the voltage system stability of weak and longitudinal power systems, especially in a deregulated environment. This project combines Dr. Ojo's expertise in power electronics with Dr. Omoigui's knowledge of power system analysis and control.Currently in the United States little study is being done on the unique problems of small and longitudinal power systems, but they will become increasingly important as more US power systems become deregulated. It is anticipated that the results of this project will provide viable and efficient solutions to perennial power system disturbances that are common in longitudinal power systems. Both investigators have a strong record in graduate education, and they also expect that a significant amount of knowledge transfer will occur among their students as a result of this project.The Office of International Science and Engineering and the Division of Electrical and Communications Systems are jointly supporting this project.