在高性能的直接转矩控制系统中，速度闭环是必不可少的。
The closed-loop of speed is essential in the high-performance direct torque control system.
在常规直接转矩控制系统中，每一采样周期中只施加一个电压空间矢量。
Only one space voltage vector is applied in each sampling period in the implementation of the conventional PMSM DTC system.
直接转矩控制系统在低速运行时，电机定子电阻的变化影响了系统的性能。
The change of the stator resistance of induction motor will greatly effect the performances of direct torque control (DTC) system at low speeds.
针对电动汽车实际控制条件，提出了电动汽车直接转矩控制系统的实现方案。
Driving system of electric vehicle based on DTC is researched according to the actual control condition of the electric vehicle.
针对异步电动机直接转矩控制系统低速性能差的问题，提出了两项改进措施。
Direct Torque control (DTC) is a AC speed regulation method with high dynamic performance developed after vector control.
本文设计了一种自适应模糊pd型速度调节器，应用于模糊直接转矩控制系统。
This paper presents an adaptive PD type fuzzy logic speed controller, which is applied to fuzzy direct torque control system.
实验结果表明，IS C控制策略能够有效地改善直接转矩控制系统的低速特性。
The experiment results show that control performance has been improved by means of ISC in low-speed operation.
因此研究和开发高性能的电励磁同步电动机直接转矩控制系统具有重大的经济价值。
Therefore, research and development of high-performance direct torque control system of electrically excited synchronous motor is of great economic value.
如何提高定子电阻的观测精度是改善无速度传感器直接转矩控制系统低速特性的关键。
How to enhance resistance detector precision is the key to improve the low-speed performance of DTC system.
因此本文对基于二极管筘位式三电平逆变器的异步电动机直接转矩控制系统进行了研究。
This paper focuses on the study of direct torque control of induction motor drive based on diode-clamped three-level inverters.
介绍了异步电动机直接转矩控制系统中状态选择器的一种新型设计方法—神经网络设计方法。
A new design method of state selector in asynchronous machines direct torque control system-neural networks design method is introduced.
在直接转矩控制系统中，异步电动机定子电阻为一变化值，从而影响了控制系统的低速性能。
The stator resistance of asynchronism electromotor in direct torque control system, is a variable value which influence the low speed performance of the system.
以TMS320F 2812为核心构成控制器，实现异步电机无速度传感器直接转矩控制系统。
Based on controller's core TMS320F2812, the speed sensor-less direct torque control emulation system has been designed.
研究结果表明：直接转矩控制系统结构简单，调速性能优越，对电机参数不敏感，很有发展前途。
The results show that the direct torque control system is simple in structure, superior in performance and insensitive to electric motor parameters, and is a promising control strategy.
异步电机的直接转矩控制系统以其思路新颖、控制方案简单及性能优越等特点受到人们的普遍重视。
Direct torque control (DTC) system for induction motor has got wide attention with the advantages such as its new thoughts, simple control scheme and excellent performance.
本文实现了以TMS320 LF 2407ADSP为控制核心的无速度传感器直接转矩控制系统。
A speed sensorless direct torque control (DTC) system that USES TMS320LF2407A DSP as its core is designed in this paper.
仿真结果表明了模糊神经网络观测器可实现对定子电阻的精确检测，从而提高直接转矩控制系统的低速性能。
Simulation results show that this fuzzy-neural network estimator can precisely measure the value of resistance and improve the low-speed performances of DTC system efficiently.
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。
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.
本文设计了以TMS320F 240DSP为控制核心、三相异步电机为研究对象的直接转矩控制系统。
A DTC controlled asynchronous motor drive system that USES TMS320F240 DSP as its core is designed in this paper.
介绍了一种直接转矩控制系统的基本控制方法，推导了这种控制方法的理论依据，同时提出了死区补偿的新方法。
A basic control method for direct torque control system is introduced, the theory gist of this method is proved. A new method of dead time compensation is also put forward.
最后设计调试了永磁电机直接转矩控制系统，包括IPM驱动和保护电路，电流电压采样电路以及转速采样电路等。
At last, the control system including the drive and protect circuits of the IPM and the current sample circuits and so on are designed.
针对异步电动机直接转矩控制系统，基于三相异步电机方程提出一种新型的采用人工神经网络辨识电机转速的方法。
The paper presents a novel speed identification scheme based on the BP Neural Network for the DTC motor drive system.
在深入研究直接转矩控制系统速度辨识的基础上，提出了一种改进的转子磁链计算方法，并应用于系统的速度辨识中。
On the basis of studying the speed estimation of direct torque control, a calculate method ameliorated on rotor flux is presented and is applied to the speed estimation.
仿真结果表明，采用低通滤波器补偿法， 直接转矩控制系统的低速性能有十分明显的提高，证实了该方法的有效性。
The simulation results showed that the performances have been improved by the compensation method based on low-pass filter in low speed in DTC system, confirming the validity of the method.
基于全阶观测器，采用李亚普诺夫稳定性理论对电机转速进行在线辨识，实现了异步电机无速度传感器直接转矩控制系统。
Motor speed was estimated on line base on Lyapunov's stability theory, and in this the speed sensorless direct torque control emulation system was designed.
提出了一种基于DSP（TMS320LF2407A）无速度传感器直接转矩控制系统，给出了硬件设计和软件设计方案。
This paper gives a design of sensor-less direct torque control system based on DSP (TMS320LF2407A). The hardware and software schemes are introduced.
研究采用高频注入法的无传感器直接转矩控制系统，通过注入特定的高频信号来追踪电机转子的空间凸极效应，以此得到转子位置和速度值。
In the sensorless control system, a specified high frequency signal is injected in to trace the magnetic anisotropy of the motor, by which we can get the value of rotor speed and position.
研究采用高频注入法的无传感器直接转矩控制系统，通过注入特定的高频信号来追踪电机转子的空间凸极效应，以此得到转子位置和速度值。
In the sensorless control system, a specified high frequency signal is injected in to trace the magnetic anisotropy of the motor, by which we can get the value of rotor speed and position.
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