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恒磁链
相关语句
  constant-field
     A conclusion is made that it is reasonable to use ism=0 field-oriented control in the constant-field region and cos(?)
     证明了工程上同步电机在恒磁链运行区采用磁场定向ism=0控制方式,在弱磁运行区采用磁场定向cos(?)
  constant flux linkage
     The control strategy for the current i_d=0, power factor cosφ=1 and constant flux linkage are respectively studied.
     分析研究了同步电机的id=0 ,功率因数cosφ =1以及恒磁链控制策略。
短句来源
     Compared with constant flux linkage, exciting current is minished with light load.
     与恒磁链方案比较,该方案有效地减小初级电流中无功激磁分量。
短句来源
  “恒磁链”译为未确定词的双语例句
     Several current control strategies of permanent magnet synchronous motor (PMSM) were introduced.
     永磁同步电机的电流控制方法有id=0控制、转矩电流比最大控制、功率因数等于1的控制和恒磁链控制等。
短句来源
     Circuits and software are designed for the major parts of the system such as constant magnetic linkage control frequency converter and votating speed difference frequency fuzzy controller.
     对于系统的主要组成部分——恒磁链控制变频器和转差频率模糊控制器进行了设计。
短句来源
     It is found that the performance of DSPM motor is directly affected by the phase current, so the control strategy focuses on the current control and its influences.
     研究了i d=0控制、恒磁链控制等电流控制方法并进行了论证和比较,对于DSPM电机,最终选用了i d=0控制方法; 在电机高速运行时,针对反电势升高的特点,提出了弱磁控制的方法,拓宽了电机的调速范围;
短句来源
     An on_line identification project of load torque disturbance and rotor resistance for vector controlled induction motor is proposed,and then the adaptive control project with load torque disturbance and rotor resistance variation of vector_controlled induction motor is also presented. Theoretical analysis and computer simulation demonstrate that the method is effective and simple.
     在矢量控制感应电机的数学模型的基础上 ,通过理论推导和分析 ,建立了恒磁链矢量控制感应电机转矩扰动和转子电阻辨识模型及在线辨识的方法和方案 ,提出了矢量控制感应电机的自适应控制方案 ,理论推导分析和仿真结果表明该方法正确可行且具有快速简单等优点。
短句来源
     = 1 control modes. Also, the steady-state performance are simulated and analyzed.
     =1(功率因数为1)控制方式下,恒磁链、弱磁运行时的稳态特性方程,仿真并定量分析了其稳态特性。
  相似匹配句对
     Compared with constant flux linkage, exciting current is minished with light load.
     与磁链方案比较,该方案有效地减小初级电流中无功激磁分量。
短句来源
     Circuits and software are designed for the major parts of the system such as constant magnetic linkage control frequency converter and votating speed difference frequency fuzzy controller.
     对于系统的主要组成部分——磁链控制变频器和转差频率模糊控制器进行了设计。
短句来源
     The Working Situation of Constant Current Tube Scanning Circuit
     流管扫描电路的工作状态
短句来源
     Constant-Current Supply Coulometric Titration of Sulfa Drugs
     磺胺类药物电流库仑滴定法
短句来源
     Flux tracking control of induction motors
     感应电动机磁链跟踪问题
短句来源
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  constant-field
Two electroneutrality and constant-field solutions of the diffusion-migration problem in steady-state conditions on microelectrodes, where both approximations admit analytical solutions, are compared.
      
The drag-current density is calculated and its dependence on the constant-field strength E1 and the electromagnetic-wave intensity I is analyzed.
      
DNA damage was determined in non-synchronised cells by constant-field gel electrophoresis, and expressed as the fraction of DNA released.
      
They were converted to permeabilities by use of the constant-field equation and are in good agreement with the curves which had been calculated from conventional voltage-clamp data.
      
The organization of the mitochondrial genome in the IR36 indica variety of rice was analyzed using constant-field and CHEF gel electrophoresis.
      
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The basic principle of vector control of the three dimensional motor (3DM) is described. To achieve the vector control of 3DM, three conditions must be satisfied, that is, the field orientation, constant rotor flux linkage and full controllable torque, the key being the accurate control of the stator and rotor currents. The control circuit including the inverter circuit consisting of IGBT intelligent power module is presented and a detailed analysis is made of the current loop. Experimental results are given....

The basic principle of vector control of the three dimensional motor (3DM) is described. To achieve the vector control of 3DM, three conditions must be satisfied, that is, the field orientation, constant rotor flux linkage and full controllable torque, the key being the accurate control of the stator and rotor currents. The control circuit including the inverter circuit consisting of IGBT intelligent power module is presented and a detailed analysis is made of the current loop. Experimental results are given.

阐述了三维电动机矢量控制的基本原理.分析表明,只有在磁场定向、转子恒磁链运行及转矩全可控这三个条件都得到满足的情况下,才能正确实现三维电动机的电磁解耦控制.而其中关键在于电机的定转子电流能得到精确控制.给出了采用IGBT智能模块构成主电路的三维电动机控制系统,并对电流环部分进行了详细分析.给出了实测波形.

Even though two Japanese authors first proposed in the seventies a theoretical method for keeping flux linkage of motor as nearly constant as possible, yet there are practical factors that make flux linkage deviate considerable from being constant. We developed a method that is much simpler than past methods for reducing such deviation. We found that the two causes of deviation are: variation of supply voltage and the existence of the resistance voltage of the stator winding of the motor. They must be compensated...

Even though two Japanese authors first proposed in the seventies a theoretical method for keeping flux linkage of motor as nearly constant as possible, yet there are practical factors that make flux linkage deviate considerable from being constant. We developed a method that is much simpler than past methods for reducing such deviation. We found that the two causes of deviation are: variation of supply voltage and the existence of the resistance voltage of the stator winding of the motor. They must be compensated for if the deviation is to be held to a minimum. The circuit for accomplishing such compensation is shown in Fig.3. Fig.3 is based on the introduction of the concept of zero voltage vector and on making its working time proportional to the total deviation due to two causes. Nonzero voltage vector working time Δ t 1 can be computed with eq.(12), where Δ , dc ·R, V 1, V cc , C, R 3, R 4,R c can be understood by a careful lood at Fig.3, K C=2C V cc /3, K i=R 1/[R c(R 1+R 2)], K A=R 3/R 4. Computer simulation appears to indicate that our simple method is feasible.

按常规多边形磁链轨迹模型对电动机的恒磁链调频控制,在电源电压变化及定子电阻压降影响下,磁链幅值将产生较大偏差。本文采用对非零电压矢量作用时间进行补偿的方法,以减小所产生的偏差,给出了原理电路和参数关系,并用计算机仿真进行验证。

An on_line identification project of load torque disturbance and rotor resistance for vector controlled induction motor is proposed,and then the adaptive control project with load torque disturbance and rotor resistance variation of vector_controlled induction motor is also presented. Theoretical analysis and computer simulation demonstrate that the method is effective and simple.

在矢量控制感应电机的数学模型的基础上 ,通过理论推导和分析 ,建立了恒磁链矢量控制感应电机转矩扰动和转子电阻辨识模型及在线辨识的方法和方案 ,提出了矢量控制感应电机的自适应控制方案 ,理论推导分析和仿真结果表明该方法正确可行且具有快速简单等优点。

 
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