本文从变频器电动机组成的系统角度出发,研究逆变器开关方式与电机磁场的关系及SPWM调制下电动机磁场的生成特点。
The relations of SPWM inverter switching model and motor field, and motor field characteristics in this circumstance are re-searched.
通过分析变换器在不同开关相角下滤波电感电流脉动的大小,得出了在同样的电流脉动要求下,采用交错开关方式与采用传统开关方式相比,滤波电感可减小的幅度。
By analyzing the current ripple of the filter inductor on the condition that the phase shift is different, the reduced value of the current ripple with the interleaving modulation strategy can be got.
这种编写脚本的方式非常好,因为这样一来,它更像是带有一些开关或者选项的UNIX命令。
This is a great way to write a script so that it is more like a UNIX command with switches or options.
这些开关的工作方式能够被非常直接明了地解释,细节上虽然精巧复杂。
The way these switches work is pretty straightforward to explain, albeit exquisitely intricate in detail.
这些设备按照某些方式布局,并由开关控制。
The equipments are arranged in a way where they could be controlled by switches.
它们以开关的方式工作,使得一个通路中的电流可以控制另一通路中的电流。
They are switches that enable one electric current to control the passage of another.
向后兼容(BC)和向前兼容(FC)方式都是通过version属性触发的,而不是处理程序开关或者启动选项。
Backwards compatibility (BC) and FC modes are always triggered by the version attribute, not by any processor switch or launch-time option.
XML并不能处理命令行开关,因而您必须使用不同的方式处理它们,也许会是Getopt,这个模块将会给您的程序带来复杂性。
XML has nothing to do with command-line switches, so you may have to do those differently, maybe with Getopt, which will add to the complexity of your program.
让我们分解perl脚本(用一种简化的方式-省略-p开关的一些复杂性)。
Let's decompose the Perl script (in a simplified fashion, omitting some of the complexities of the -p switch).
按照相反的方式处理(使用命令行文件开关读取文件,然后处理其他命令行开关)也是可能的。
Doing it the other way (just use the file switch from the command line, read the file, then process the other command-line switches) is also possible.
当提及类的打开关闭原则,它可以通过抽象类和实体类实现行为的方式来确保。
When referring to the classes Open Close Principle can be ensured by use of Abstract classes and concrete classes for implementing their behavior.
为了控制热量,消极供暖房屋通过开关门和窗户的方式把加热的气体留在房内或者流走。
To control the amount of heat in a passive solar house, the doors and windows are closed or opened to keep heated air in or to let it out.
这种编写脚本的方式非常好,因为这样一来,它更像是带有一些开关或者选项的UNIX X命令。
This is a great way to write a script so that it is more like a UNIX command withswitches or options.
FreeDB检索依照前面给出的检索标准完成,或者以交互的方式,或者以命令行开关的方式。
The FreeDB searches are done with the search criteria given earlier, either interactively or through command-line switches.
根据阀门的控制方式,可分为伺服型执行机构和开关型执行机构。
According to valve's control mode, it is divided into servo actuator and switch actuator.
在这里必须有一种方式去向对象发出一个请求,在对象收到请求后才能照指令去完成一个事务,在屏幕上打印一些东西,或是打开一个开关。
There must be a way to make a request of that object so it will do something, such as complete a transaction, draw something on screen or turn on a switch.
它的工作原理相同的方式,作为开关打开或关闭的发动机声音。
多路开关的输入端可以有多种输入连接方式,例如单端连接或者差分连接。
The multiplexer can be carried out in a variety of ways such as "single-end" and "differential" connection.
介绍一种以SCR作主开关器件的SPWM控制方式的变频调速系统,并通过实验对提出的方案进行了验证。
The paper presents a SPWM frequency variable and velocity variable system with SCR as main switching devices. The proposed scheme has been verified through experiment.
相对于降压式谐振开关电容变换器,升压式谐振开关电容变换器构成方式不同,潜电路发生条件也有较大区别。
Comparing to step-down resonant switched capacitor(RSC) converter, the composing principle of step-up RSC converter is different, so their sneak circuit conditions are not same.
算法只需通过设置参数开关来控制遍历的方式。
This arithmetic is simply achieved by setting parameter switch to control the traverse way.
指出了静触点结构、回位弹簧弹力以及通电方式是影响电磁开关粘连的主要因素;
The structure of fixed contact, return spring and conduction ways are the major factors influencing the power-on of electromagnetic switch.
空间矢量脉宽调制和双向开关多步换流方式是矩阵式变换器的基本控制策略。
Space vector pulse width modulation(SVPWM) and multi-step commutation method of bi-directional switches are the basic control strategies of the matrix converter.
本文提出恒频采样电流跟踪型PWM方式,并对其开关策略进行了理论分析。
The fixed frequency sample PWM method is put forward in this paper together with the theoretical analysis about their switch strategy.
该项目利用开关组件的方式来隐藏和显现空间。
Opening and closing elements are used to hide and reveal spaces.
它还支持飞艇的安全方式操作,通过一个开关可以选用手动无线电操作。
It also supports the airship security management, by switching on request to a manually radio control.
角度偏转是光操作的一种方式,在光开关和光衰减器有广泛的应用。
Angle deflection is an effective operation on optics, which is widely used in optical switch and variable optical attenuator.
角度偏转是光操作的一种方式,在光开关和光衰减器有广泛的应用。
Angle deflection is an effective operation on optics, which is widely used in optical switch and variable optical attenuator.
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