Adaptive coordinated control of engine speed and battery charging voltage

In this paper, the control problem of auxiliary power unit （APU） for hybrid electric vehicles is investigated. An adaptive controller is provided to achieve the coordinated control between the engine speed and the battery charging voltage. The proposed adaptive coordinated control laws for the throttle angle of the engine and the voltage of the power-converter can guarantee not only the asymptotic tracking performance of the engine speed and the regulation of the battery charging voltage, but also the robust stability of the closed loop system under external load changes. Simulation results are given to verify the performance of the proposed adaptive controller.

机场飞机地面空调设备选型和推广研究

近年来,经济全球化迅速完善,经济、文化以及政治等方面的发展为人们的生活提供了更大的便捷,但是在该种生活状态下的人们也逐步意识到环境的重要性。为了能够在后续发展的阶段中,不断的降低资源消耗、减弱环境污染,机场地面技术人员应该从飞机地面空调设备的选型入手,选择更加适合的飞机地面空调,来完成节能减排,夺取蓝天保卫战的胜利。