Matrix converters are a well-known class of direct AC-AC power converter topologies that can be used in applications, where compact volume and low weight are necessary. For good performance, special attention should b...
详细信息
Matrix converters are a well-known class of direct AC-AC power converter topologies that can be used in applications, where compact volume and low weight are necessary. For good performance, special attention should be paid to the control scheme used for these converters. The model predictivecontrol strategy is a promising, straightforward and flexible choice for controlling various different matrix converter topologies. This work provides a comprehensive study and detailed classification of several predictive control methods and techniques, discussing special capabilities they each add to the operation and control scheme for different matrix converter topologies. This study also considers the issues regarding the implementation of model predictivecontrol strategies for matrix converters. This survey and comparison are intended to be a useful guide for solving the related drawbacks of each topology and to enable the application of this control scheme for matrix converters in practical applications.
This study aims to investigate the potential improvement of energy efficiency and emission performance for a ground transportation system equipped with connected and automated vehicles (CAV) by means of intelligent an...
详细信息
This study aims to investigate the potential improvement of energy efficiency and emission performance for a ground transportation system equipped with connected and automated vehicles (CAV) by means of intelligent and coordinated control design from vehicle powertrain and aftertreatment perspectives. First, a dedicated control algorithm is designed for heavy-duty vehicle exhaust emission aftertreatment system against unknown catalyst aging condition. To reduce the tailpipe NO[subscript x] emissions, urea-based selective catalytic reduction (SCR) systems, which utilize ammonia as the reducing agent for deNO[subscript x] reactions, have become indispensable for Diesel engine powertrains in ground vehicles. A closed-loop cost-friendly SCR controller is designed for the implementation purpose. Second, predictive control methods for vehicle powertrain and aftertreatment systems utilizing information induced by road environment perception and connectivity of vehicles are proposed. Simulation results indicate the overall emission performance as well as energy efficiency can be improved with a proper synthesis of preview information and coordinated control design. Third, the impacts of human driver behaviors variation on vehicle fleet energy consumption and travel time are evaluated providing insights on future CAV control design for efficiency improvement. Through a proper integration of these three interconnected aspects, an energy-efficient mobility for future transportation system is envisioned
Advances in communication, information technology, and computation have led to a rapid change of today's world. Actuation, communication, sensing, and control are becoming ubiquitous. While this offers many possib...
详细信息
暂无评论