Advanced High-Power Converters and Controls for Medium Voltage Drives

高功率变换器在几乎每个工业领域都有广泛的应用。随着最近的技术进步，兆瓦级功率变流器正在扩展到许多新的应用领域。其中一个重要的应用是变速电机驱动器，越来越多地用于工业中，以节省能源，提高生产率和提高产品质量。其他重要的应用是可再生能源系统、石化、水泥、采矿、金属、造纸和纸浆、电力和能源、海洋和运输系统。然而，在开发具有高效，可靠和成本效益的特定应用控制系统的中压（2.3 - 15kv）大功率变流器时，存在许多技术挑战问题。经过与加拿大中压（MV）驱动行业专家的广泛互动，我发现对大功率15 kv级无变压器中压驱动器的需求不断增长，以满足目前的行业需求。在未来五年的NSERC发现资助计划中，我将重点研究和开发一种创新的15 kv级无变压器中压驱动技术。该研究计划将解决三个研究目标：1)创新高效且具有成本效益的15 kv级驱动大功率变换器；2)设计可靠且高性能的15 kv级驱动模型预测控制方案；3)无变压器大功率中压驱动系统。拟议的研究为当今工业面临的技术问题提供了重要的知识和实用的解决方案。通过行业合作，将研究成果转移到加拿大电力驱动行业进行商业化，使加拿大经济受益。此外，高素质的人才将接受培训，以发展分析和计算机模拟技能，沟通技巧，技术写作和演示技巧以及测试/实验技能。

High power converters have found a wide range of applications in almost every industry sector. With recent technological advancements, power converters in the megawatt range are expanding into many new application areas. One of the important applications is variable speed motor drives that are increasingly used in the industries to conserve energy, increase productivity and improve product quality. Other important applications are renewable energy systems, petrochemical, cement, mining, metal, paper and pulp, power and energy, marine, and transportation systems. However, there are many technically challenging issues in developing the medium-voltage (2.3 - 15 kV), high-power converters with application-specific control systems that are efficient, reliable, and cost-effective. After extensive interaction with Canadian medium-voltage (MV) drive industry experts, I found a growing demand for high-power 15 kV-class transformerless MV drives to meet the present industry needs. During the next five years of NSERC Discovery Grant program, I will focus on the research and development of an innovative 15 kV-class transformerless MV drive technology. This research program will address three research objectives: 1) innovation of efficient and cost-effective high-power converters for 15 kV-class drives, 2) design of reliable and high-performance model predictive control schemes for 15 kV-class drive and 3) transformerless high-power medium-voltage drive system. The proposed research provides vital knowledge and practical solutions to the technical problems facing today's industry. Through industry collaboration, the research outcomes will be transferred to the Canadian electric drive industries for commercialization, benefiting the Canadian economy. Also, the highly qualified persons will be trained to develop analytical and computer simulation skills, communication skills, technical writing and presentation skills and testing/experimental skills.