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直流电机的励磁方法?

来源:http://www.jnmcd.com 发布时间:2018-12-31 浏览:
励磁方法是指旋转电机中发生磁场的方法,直流电机的励磁方法分为四种:
Excitation method refers to the method of magnetic field occurring in rotating generator. There are four kinds of excitation methods for DC motor:
1.他励直流电机
1. Excited DC Motor
励磁绕组与电枢绕组无联接关系,而由别的直流电源对励磁绕组供电的直流电机称为他励直流电机,永磁直流电机也可看作他励或自激直流电机,通常直接称作励磁方法为永磁。
There is no connection between the excitation winding and armature winding. The DC motor supplied by other DC power supply to the excitation winding is called the other excitation DC motor. Permanent magnet DC motor can also be regarded as the other excitation or self-excitation DC motor. It is usually directly called the permanent magnet excitation method.
2.并励直流电机
2. Parallel Excited DC Motor
并励直流电机的励磁绕组与电枢绕组相并联,作为并励发电机来说,是电机自身发出来的端电压为励磁绕组供电;作为并励电动机来说,励磁绕组与电枢共用同一电源,从性能上讲与他励直流电动机一样。
The excitation winding and armature winding of shunt excitation DC motor are connected in parallel. As a shunt excitation generator, the terminal voltage from the motor itself supplies power for the excitation winding. As a shunt excitation motor, the excitation winding and armature share the same power supply, which is the same as the other excitation DC motor in terms of performance.
山东微型电机
3.串励直流电机
3. Series Excited DC Motor
串励直流电机的励磁绕组与电枢绕组串联后,再接于直流电源。这种直流电机的励磁电流即是电枢电流。
The excitation winding of the series excitation DC motor is connected in series with the armature winding, and then connected to the DC power supply. The excitation current of this DC motor is armature current.
4.复励直流电机
4. Compound Excited DC Motor
复励直流电机有并励和串励两个励磁绕组。若串励绕组发生的磁通势与并励绕组发生的磁通势方向一样称为积复励。若两个磁通势方向相反,则称为差复励。
The compound excitation DC motor has two excitation windings: parallel excitation and series excitation. If the flux potential of series winding occurs in the same direction as that of shunt winding, it is called cumulative complex excitation. If the direction of two flux potentials is opposite, it is called differential compound excitation.
不一样励磁方法的直流电机有着不一样的特性。通常状况直流电动机的主要励磁方法是并励式、串励式和复励式,直流发电机的主要励磁方法是他励式、并励式和复励式。
DC motors with different excitation methods have different characteristics. In general, the main excitation methods of DC motor are parallel excitation, series excitation and compound excitation. The main excitation methods of DC generator are separate excitation, parallel excitation and compound excitation.
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