Minimizing Power Pulsations in a Free Piston Energy Converter Paper presented at the IEEE 2005 European Conference on Power Electronics and Applications Dresden, Germany September11-14, 2005 10.1109/EPE.2005.219541 Development of Free Piston Engine Linear Generator System Part 2 - Investigation of Control System for Generator SAE Technical Pa10.4271/93 Development of Free Piston Engine Linear Generator System Part 1 - Investigation of Fundamental Characteristics SAE Technical Pa10.4271/03 The Free Piston Power Pack: Sustainable Power for Hybrid Electric Vehicles SAE Technical Pa10.4271/77 Prototype testing and analysis of a novel internal combustion linear generator integrated power system Applied Energy 87 4 1342 1348 2010 10.1016/j.apenergy.2009.08.027Ĭarter, D. Homogeneous Charge Compression Ignition with a Free Piston: A New Approach to Ideal Otto Cycle Performance SAE Technical Paper 982484 1998 10.4271/982484 The Free Piston Linear Generator - Development of an Innovative, Compact, Highly Efficient Range-Extender Module SAE Technical Pa10.4271/27 These conclusions were confirmed through experiments with the prototype FPEG. Simulations conducted with this model clarified that the FPEG can be operated stably and efficiently with high robustness under the conditions of this study and that the base pressure of the air spring chamber must be set in accordance with the injected fuel mass. To investigate the potential of this control method, a one-dimensional simulation model was developed. To control the piston position at the beginning and end of the stroke, speed control commands for the linear generator are determined based on the position errors at the beginning and end of the stroke. Thus, it is preferable for the linear generator to function only in the middle of the stroke, allowing the piston to move freely during the remainder of the stroke. The piston speed is zero at the beginning and end of the stroke and reaches a maximum at the middle of the stroke. In general, the generating efficiency of linear generators is low in the low-speed region. This paper describes a novel linear generator control method which realizes the simple harmonic oscillation governed by the piston mass and the air spring pressure. Among these technical challenges, the piston motion control is the most significant factor in improving the robustness and efficiency of the FPEG because the combustion characteristics depend strongly on the piston motion, which is controlled by the linear generator. There are some technical challenges in ensuring an FPEG can achieve continuous operation over a long period, including lubrication, cooling, and piston motion control. The FPEG consists of a two-stroke combustion system, a linear generator, and a gas spring chamber. You may have to select a menu option or click a button.A free piston engine linear generator (FPEG) with potential for compact build, high efficiency and high fuel flexibility was developed in this study. Follow the instructions for disabling the ad blocker on the site you’re viewing.You may have more than one ad-blocker installed. You’ll usually find this icon in the upper right-hand corner of your screen. Click the icon of the ad-blocker extension installed on your browser.When it turns gray, click the refresh icon that has appeared next to it or click the button below to continue.Click on the large blue power icon at the top. ![]() Click the UBlock Origin icon in the browser extension area in the upper right-hand corner.It will turn gray and the text above will go from “ON” to “ OFF”. ![]() ![]() Click on the “ Ad-Blocking” button at the bottom. ![]()
0 Comments
Leave a Reply. |