Control Issues in Robust High-efficiency Energy Conversion with Application to Renewable Energy Systems

可再生能源系统中鲁棒高效能量转换的控制问题

• 批准号: RGPIN-2015-03811
• 负责人: Moallem, Mehrdad
• 金额: $ 2.19万
• 依托单位: Simon Fraser University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=589397
• 关键词: Control; Issues; Robust; efficiency; Energy

Modern renewable energy systems (RES) face two main challenges in their evolution: (1) Fundamental sciences and technologies to produce reliable and economical energy sources; and (2) Energy processing technologies for reliable and optimal conversion of energy into usable forms. Although the electronics technology has been perfected in the past decades, it has to be redesigned and adapted to match new challenges. To this end, control, communication, and computing technologies, along with new power electronics converters and devices are expected to become increasingly important in modern RES. An area of particular importance is stable and robust control of intermittent power sources, loads, and energy storage devices. In particular, switching power converters are intrinsically nonlinear, subject to strict input/state constraints, and suffer from various uncertainties. Most existing control methods utilize linearized steady state models that neglect the above constraints or cannot be used to design robust controllers required by intermittent energy sources. Another common feature of RES energy converters is the existence of an optimal power operating point, which is dependable on the available input power and load conditions. To maximally utilize such converters, the power processing stage has to autonomously track the optimal point in a reliable and accurate manner. Furthermore, renewable energy systems often have inherently nonlinear characteristics with significant parametric and dynamic uncertainties. Hence, design methods based on linearization may fail to provide the full benefits of feedback systems due to neglecting nonlinear effects.

现代可再生能源系统（RES）的基础科学和技术，以生产可靠的能源来源； ，随着新电源的转换器和设备在现代区域越来越重要。 /状态控制方法利用稳态模型上述约束或无法通过少量的能源来控制。因此，基于线性化的设计方法可能无法提供反馈系统的全部好处。