特性 （Features） | 永磁直驱式和双馈式风机比较 (the comparasion between PMDD and Doube Fed ) | 分析 两只乌龟溪西水库(Analysis) |
电网兼容性 (Grid Compatibility) | 永磁直驱风机更强 (Better Compatibility for PMDD) | 永磁直驱风机具备较强电容补偿、低电压穿越能力，对电网冲击小对新生儿的祝福语 (PMDD is well equipped with the stronger capacitor compensation and low voltage ride through ability and there is only a minor impact on the grid) |
维护成本(Maintenance Cost) | 永磁直驱风机更低 (Lower Cost for PMDD) | 永磁直驱风机省去齿轮箱维修费用 ( the maintenance cost for the gear box can be saved for the PMDD) |
空气动力学性能年夜饭必备的十二道菜 (Aerodynamics Performance) | 永磁直驱式受风速限制较小 (Lower Speed Limit for PMDD) | 永磁直驱风机通过电磁感应原理发电，在额定的低转速下输出功率较大、效率较高 (PMDD generated the power by electromagnetic induction and the output power and output efficiency much higher under the rated low rotational speed) |
噪音 (Noi Level) | 永磁直驱风机噪音更低 (Lower Noi Level for PMDD) | 永磁直驱风机省去了齿轮箱，噪音低懦弱反义词>虚伪的话 (The noi level is much lower due to the removal of the gearbox.) |
效率 (Efficiency) | 永磁直驱风机效率更高，发电效率平均提高5-10% (Higher Efficiency for PMDD with approximate 5-10% than Double Fed turbine) | 双馈式风机支持齿轮箱工作，本身也耗电 (There are much power loss on the operaiton of the gearbox for the double fed turbine) |
运输难度 (Transportation) | 永磁直驱风机运输难度更大 吃汤圆是什么节日( Difficulter than Double Fed for Transporation) | 永磁直驱风机体积较大，运输难度更大 (It is a little bit more difficut than double fed turbine for the PMDD for the transportation due to its volume size) |
电控要求 (Electronic Control Requirement) | 永磁直驱风机要求更高 (Higer Request for PMDD) | 永磁直驱风机省去齿轮箱，全功率逆变节制闸 (PMDD removed the gearbox and can be full power invertered) |
改进空间 (Room for Improvement) | 永磁直驱风机改进空间更大 (Much More Room can be Improved for PMDD) | 永磁直驱风机技术较新，电子化程度高 (Adavanced technique and electronization for the PMDD) |
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