This paper analogy the selection of voltage space vector and the flux linkage estimate model of the direct torque control system of PMSM, and the realizing project of the system.
文章分析了永磁同步电机直接转矩控制系统的电压空间矢量选择和磁链估计模型，并提出了系统的实现方案。
The gas-lift pumping plant is the power source, the gas volume has a direct effect on the scale of gas lift and the selection of power motor will directly affect the cost of gas-lift system.
压缩机组作为气举采油的动力源，其气量直接影响气举采油的规模，而动力机的选择也将直接影响整个气举系统的经济效益；
Improper selection and protection of low voltage cables will have direct impact on safety and reliability of the power supply system.
低压电缆如选择与保护不当，直接影响供电系统的安全性、可靠性。
The radar waveform not only direct the signal processing, also affect the system resolution, measure precision, power of suppress clutter and so on. So its design and selection is very important.
雷达发射波形不仅决定了信号处理方法，而且直接影响系统的分辨力、测量精度以及抑制杂波能力等性能，因而它的设计和选择至关重要。
For enterprises, the direct application value of the ECDS system to the enterprise is mainly reflected in: the selection of the target more clear, more clear standards.
对企业而言，ECDS体系对企业的直接应用价值主要体现在：选人目标更明确，标准更清晰。
For enterprises, the direct application value of the ECDS system to the enterprise is mainly reflected in: the selection of the target more clear, more clear standards.
对企业而言，ECDS体系对企业的直接应用价值主要体现在：选人目标更明确，标准更清晰。
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