Active Magnetic Bearing for Integrated Turbo-machines

主动磁轴承（AMBs）提供适合极高转速的低损耗高可靠性轴承。amb涉及非常快速的反馈控制，精确的系统动力学数值建模，高带宽电力电子和良好的磁路设计的组合，因此单套的开发成本仍然非常高。amb目前存在于中等价值的产品组（例如半导体/物理实验室的高真空泵或高速空气压缩组）中，其中合理的体积可以支付数千台以上的开发成本，或者在大型高价值机械中，缺乏替代品证明了极高的成本（例如管道压缩机，潜艇中的蒸汽轮机）。对于单个大型轴承套件，OEM的成本为25万英镑并不罕见。现在存在一个独特的商业机会，因为按照给定的设计重新生产多个轴承的总成本对于特定类别的客户来说相对较低-那些具有开发和制造电磁机器的内在能力的客户。这些客户缺少的元素是控制器的实现和电磁设计能力。JPE Systems打算通过应用复杂的转子动力学建模、新型磁铁线圈绕组以及开发低成本体积控制器硬件和电力电子设备来提供这种“专有技术”。经过验证的JPE系统“工具包”将使oem能够以显着降低的成本将内部amb集成到中速(

Active Magnetic Bearings (AMBs) provide low-loss high reliability bearings suited toextremely high rotational speeds. AMBs involve a combination of very fast feedback control,accurate numerical modelling of system dynamics, high-bandwidth power electronics & goodmagnetic circuit design, consequently the development costs of single sets have remainedextremely high. AMBs are presently found either in medium-value product sets (eg highvacuum pumps for semicon/physics labs or high speed air compression sets) where reasonablevolumes pay back development costs over many thousands of units or in large high-valuemachinery where the lack of alternatives justifies extremely high costs (eg pipelinecompressors, steam-turbines in submarines). It is not unusual for individual large bearing setsto cost £250K to the OEM.A unique business opportunity now exists due to the total cost of reproducing multiplebearings to a given design can be comparatively low to a particular class of customers – thosewith intrinsic capability to develop & manufacture electromagnetic machines. The missingelement for these customers is the controller implementation & electromagnetic designcapability. JPE Systems intends to provide this “know-how” through the application ofsophisticated rotordynamic modelling, novel magnet coil windings and the exploitation of lowcosthigh-volume controller hardware & power-electronics. The proven JPE Systems “toolkit”will enable OEMS to integrate in-house and at significantly reduced cost AMBs inproducts such as medium-speed (