The Hybrid Electric Business Unit of Parker Hannifin Corporation launched its new EHP (electro-hydraulic pump) System at the opening of MINExpo International in Las Vegas. The EHP System, which combines a high-efficiency permanent magnet AC (PMAC) motor/generator and high-performance mobile inverter with a Parker hydraulic motor, offers significant design and performance benefits for mining machinery and equipment applications.
EHP系统的核心是一种移动逆变器，可提供实时速度/扭矩命令，并能够使用所有传统的液压泵流/压力控制体系结构。控制，操作性能和诊断监视是通过逆变器的离散I/O或Canopen接口来完成的。
The EHP System enables electro-hydrostatic actuation (EHA). In mining equipment applications, EHA is used for the mining implement (e.g. shovel, scoop) and allows the implement to be decoupled from the internal combustion engine. By decoupling the mining implement, the power draw on the engine is reduced and the engine size can be optimized, thus reducing emissions and achieving fuel savings.
EHP系统也非常适合开发混合和全电动设备解决方案。它的需求功能，可变速度控制和高效率组件，以及将能量再生到电池组/超电脑电容器中的能力，都有助于在电池充电之间延长设备的运行时间。
The EHP PMAC motor/generator is available in a wide range of voltage configurations (24 to 800 Vdc) and four diameters (142, 210, 310 and 470 mm). With patent-pending cooling technology for optimum performance, the EHP motor has a power density up to 3.9 kW/kg. EHP motors can also couple to virtually any Parker hydraulic pump, creating significant flexibility when designing a hydraulic system.
The Hybrid Electric Business Unit of Parker Hannifin specializes in hybrid electric and all-electric system solutions for mobile equipment. Whether the machine function is traction, implements or an ancillary system, the Hybrid Electric Business Unit can provide the expertise needed for designing system architectures, advanced control schemes and validating total system performance and energy savings potential.
帕克·汉尼芬
www.parker.com
Filed Under:Mobile Hydraulic Tips
