实现实际转子磁链定向矢量控制系统的关键是磁链模型的计算精度和环路PI调节器的正确整定。

The key to realize a practical rotor field oriented vector control system of inductive motor is both the calculative precision of flux model and the adjusting of PI regulator.

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直动式气门机构液压间隙调节器(HLA)，由于结构紧凑、气门机构传动链短，难以实现动态测量。

It is difficult to realize dynamic measuring for valve mechanism with a direct action type hydraulic lash adjuster (HLA) due to its compact structure and shorter driving chain of valve mechanism.

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针对PI参数对系统的影响，改进了PI速度调节器的设计，改善了系统的磁链和转矩控制性能。

The design of PI speed regulator is changed to improve the properties of the flux and torque of the system due to the effect of PI parameters to the system.

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