torque current

A pulsating torque component can be compensated by inject a selected harmonic component to the phase current.

消除转矩脉动可以通过对定子电流加入谐波的方式完成。

Two torque estimate methods based on this nonlinear model are proposed: one method estimates torque value by current and rotor position, and the other one estimates torque by current and flux linkage.

在所建立模型的基础上设计了两种转矩估计器：一种通过电流和转子位置计算转矩，另一种则根据电流和磁链来估计转矩。

The author's special contribution lies in the development of the manual torque transducer using eddy current sensing theory, which is the most critical module of the system.

在这一系统中，本文的独特贡献在于采用电涡流感应原理研制了人力力矩传感器，解决了本系统实现智能化助动的关键问题。

To reduce the absorbing torque interference of eddy current dynamometer cased by variable rotating speed, the decoupling control project of compensation torque is put forward, which compensation torque is determined by the feedback and prediction of vehicle speed on testing conditions.

为降低转速变化对电涡流测功器吸收扭矩控制的影响，提出了测试工况扭矩车速反馈预测补偿解耦控制方案。

Further more, a detailed comparative study of two-level system and three-level system is conducted. The simulation results, three-phase current waveforms, the electromagnetic torque waveform are given.

并且与两电平系统从三相电流波形、电磁转矩波形进行了详细的对比分析，分析发现采用三电平变流器后，电流的谐波明显减少，更加接近正弦波，电磁转矩脉动得到改善。

Aiming to minimize the torque ripple in condition of non-perfect BEMF waveform, the dissertation present a optimum current tracking control technique.

实际中一般是这两种情况都存在。针对这种反电动势波形偏离理想波形的情况，本文提出了一种最优电流跟踪法来抑制转矩脉动。

Reduces start torque by the square of the current reduction.

起动扭矩减少值是电流降低值的平方.

A test method of torque synchro rotor quadrature axle damping short-loop loss and current was introduced.

介绍力矩式自整角机转子交轴阻尼短路环损耗和电流的一种测试方法.

A detailed study of EPS system from perspective of assist characteristic and control strategies was carried out. In order to get the target current of the motor, designed the fuzzy controller. It produced the assist characteristic curves at different velocity and torque input of steering wheel.

对EPS系统的助力特性与控制策略进行了深入的探讨，设计了电动机助力目标电流的模糊控制器，得到了在不同车速和转向盘力矩输入下的助力特性。

In variable-frequency drives of AC motor, it needs to control the relevant variables to ensure three-phase equilibrium of the sinusoidal input current in order to keep the electromagnetic torque of AC motor constant.

异步电机的变频调速，需要控制相关变量，保证异步电机输入三相平衡的正弦电流，这样才会合成恒定的电磁转矩。