| 1. | The first one is based on keeping the input current vector in phase with the input voltage vector
第一种方法基于使输入电流矢量与输入电压矢量保持固定偏置角。 |
| 2. | The initial position can he measured accurately through controlling a given position current vector of motor stator
提出了一种电机初始位置的确定方法，通过输出给定位置的定子电流矢量的方法，可以精确检测出电机初始位置。 |
| 3. | The duty expressions of mc have been derived by the method of separate modulation and then combination of input current vector and output voltage vector
采用对矩阵变换器的输入电流矢量和输出电压矢量分别调制然后组合的方法得到矩阵变换器的占空比表达式。 |
| 4. | The varying properties for local nodal voltage and current are analyed theoretically . the method of using local nodal voltage and current change to estimate equivalent impadence
提出了用局部电压、电流矢量变化估计电网侧等值阻抗模的方法和对用于估计的电压、电流矢量变化数据的筛选。 |
| 5. | Furthermore , vector control methods to pmsm are studied with the result that the current vector decouple is actually an approximate static linear decouple control , viz . an incomplete decouple . 3
研究了pmsm的矢量控制方法，通过分析得出电流矢量解耦实际上一种近似的线性化的静态解耦控制，是一种不完全解耦。 |
| 6. | After simulating the reverse recovery characteristics , the forward and backward i - v characteristics , carries distribution and current vectors et al by medici , the optimal design to some key parameters is proposed
同时对器件反向恢复特性、正反向-特性及载流子分布、电流矢量等物理量进行了模拟和详细的机理分析。 |
| 7. | In the second one , the input current displacement angle is dynamically modulated as a function of positive and negative sequence components of the input voltages . in both cases , the harmonic content has been evaluated analytically
第二种方法中，输入电流矢量根据输入电压正、负序成分进行动态调制，并对两种情况下的输入电流的谐波成分都进行了分析。 |
| 8. | This strategy has many advantages : solving the problems that the system is unsteady under super - synchronization ; improving power factor of stator ( it is unity relative to that of rotor ) ; no rotor position sensor and no initial position measurement , easily building up doubly fed speed adjustment system with speed sensorless because adjusting speed is taken in the rotor coordinate and rotor current vector fixing is implemented
该方案由于引入了定子电流励磁分量的闭环控制，使系统同时具有转速和励磁调节两个调节通道，具有如下优点：一、解决了超同步工作工况不稳定的问题；二、提高了定子侧的功率因数(与转子侧功率因数为1相比) 。三、由于速度调节在转子坐标系下进行，并以转子电流矢量定向，所以无须转子位置传感器，也不用检测初始位置，易于组成无速度传感器双馈调速系统。 |
| 9. | According to the relationship of the angle of the maximum torque and the q axis , the reluctance torque for salient pmsm is made full use of and the sator current amplitude is reduced by a large percentage , so that the system robustness is greatly increased . at the speed loop , this paper presents a single value model algorithmic control strategy which is the simplied form of normal model algorithmic control and has less computation work than the latter , so the real - time performance is very good
对于嵌入式pmsm ，根据在电流幅值一定的条件下最大输出转矩与(为等效电流矢量和q轴之间的相位角)之间的关系，将磁阻转矩转换为输出转矩从而提高了输出转矩，改善了系统的控制性能；在速度环采用单步模型算法控制，其计算量比较少，提高了系统的实时性和鲁棒性。 |
| 10. | The pwm subdivision driving based on single - chip processing unit control using electric current vector even rotation with uniform amplitude method is presented , after analyzing two methods of subdivision driving : equal electric current and electric current vector even rotation with uniform amplitude , realizing 32 subdivision driving of stepper motor
分析了两种细分驱动方法：等电流法和电流矢量法恒幅均匀旋转法，提出了基于单片机控制的pwm电流矢量恒幅均匀旋转的细分驱动技术，实现了步进电机32细分驱动。 |
