查询词典 current coordinate

The speed-sensorless vector control and the identification of motor parameters in this paper are the two novel research of vector control.Using asynchronous machine's mathematic model in three-phase static reference frame, this paper has derived it's mathematic model in two-phase static reference frameand in two-phase rotating reference frame, and got the coordinate transformance formulus based on the constant magnetic force and power force, by compared different field orientation methods, we can find that field orientation at rotor field can realize the decoupling of the stator current flux component

无速度传感器矢量控制和电机参数辨识是矢量控制的两个新的研究方向，本文利用异步电机在三相静止坐标系下的数学模型推导出两相静止坐标系、两相同步旋转坐标系下的数学模型，根据磁动势守恒和功率守恒的原则，得出各坐标变换公式；通过不同磁场定向方式的比较发现，异步电机按转子磁场定向时定子电流励磁分量和转矩分量可以比较方便地实现解耦。

Permanent Magnet Synchronous Motor drived by triphase sinusoidal current is research object in this paper . Its mathematics models in several coordinate are set up , controlling principles of flux linkage and torque are discussed under DTC and the block diagram of PMSM with DTC is presented.

本文以三相正弦波驱动的永磁同步电机为研究对象，建立了其在不同坐标系下的数学模型，并深入探讨直接转矩控制中永磁同步电机的磁链和转矩的控制思想，给出控制方案。

At the same time, variational equations, their finite element formulations and numerical convolved integration algorithm of the model in current configuration usually called co-moving coordinate system are given.

基于非线性几何场论，建立了材料非局部连续模型、变分方程及相应的实时拖带系大变形有限元数值模型，设计了这一模型的数值卷积算法。

With regard to the lack of corresponding entity right backing for "execute the third party" according to the procedure law in current Chinese creditor"s subrogation system;the inconsistence between the entity law and the procedure law for the conditions to exercise creditor"s subrogation;the obscure effect of the exercising of the creditor"s subrogation;the indefiniteness of right and status of the parties in the subrogation proceeding and so on,it is suggested that amend the civil code,confine the creditor"s subrogation system,coordinate the rules in entity law and procedure law related to the debtees" to exercise their subrogation,define the creditor"s subrogation,the right and obligation of related parties in the procedure,perfect the rules in procedure law in order to provide proceeding procedure security for the realization of the creditors subrogation.

并针对我国现行债权人代位权制度在程序法中&执行第三人&缺乏相应实体权利依据、实体法与程序法有关债权人代位权行使条件规定不一致、债权人行使代位权效力不清、当事人在代位权诉讼中的地位和权利不明确等诸多缺欠，提出了制定民法典确定债权人代位权制度、协调实体法和程序法中关于债权人行使代位权的规定、明确债权人代位权诉讼相关当事人的权利义务、完善程序法规定为债权人代位权实现提供诉讼程序保障的意见。

My graduate thesis concentrates on the field of Automotive Industry, analyzes current automotive network protocols, and dicusses how to coordinate and connect numerous ECUs to make them communicate conveniently.

本论文就针对这个领域，以国内唯一通过OSEK/VDX国际认证的嵌入式实时操作系统SmartOSEK OS为基础，分析现有的汽车网络通信协议，探讨如何协同汽车中大量的电子控制单元，使其具备信息交互功能。

Three coordinate direction move and urge by direct current serve electrical machinery and realize half close ring system through speed feedback and position feedback.

三个方向通过速度反馈和位置反馈实现闭环系统。

Coordinate and make sure upgrade or new-built construction will not influence the current production

协调并确保改造／新建项目施工不会影响现有正常生产

Under a serious analysis of current commercial profile machine, a three-coordinate reverse model building machine is put forward according to the experimental requirement.

在认真分析了目前国内已有的商用三坐标轮廓仪机构的基础上，根据实验需求，设计研制了一套三坐标反求建模硬件试验机。

This thesis proposed the design and implementation of an ASIC for the motor control with DTC technology. Note that this ASIC is implemented by cell-based Design style with Verilog language.The basic principle of the Direct Torque Control is to select the switch sequence of the inverter. Those switches will control the magnetism and torque of the stator, to induce a fast response of the induction motor. Furthermore, the d-q axle's static coordinate, which is transferred from both the three-phase current and voltage, is used to compute the stator's magnetism and torque. By comparing with original values, those magnetism and torque will be calculated and set to new data. Then the switching table and the hysteresis controller are decided with the new data to generate a voltage vector and to control the stator magnetism and torque.

直接转矩控制的基本原理为经由侦测马达定子磁通与转子转速，来适当的选择变频器功率电晶体的切换状态，以获得快速且不易受外在环境影响的马达控制响应；首先，根据量测三相电流与利用变频器的切换状态取得马达的三相电压，将其转换至d-q轴静止座标，然后藉此估测马达的磁通量与转矩量，再分别与侦测的定子磁通量和转矩量比较后，得到定子磁通量与转矩量比较的结果，再利用DTC电压向量切换表(DTC Voltage Vector Switching table)，依定子磁通与转矩的比较值及马达所在的角度位置，来选择一个适当的电压向量，进而依切换顺序来激发功率电晶体，达到控制感应马达的目的。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷