Switch type DC electric machine having auxiliary excitation winding and conduction ring and brush

Patent metadata

Field	Value
Publication number	US-9419547-B2
Application number	US-201313914831-A
Country	US
Kind code	B2
Filing date	Jun 11, 2013
Priority date	Jun 11, 2012
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

The present invention provides an auxiliary excitation winding set to be installed at the rotary part of the electric machine ( 104 ) composed of a rotary part of the permanent magnetic electric machine or a rotary part of the reluctance electric machine of the switched DC electric machine with conduction ring and brush ( 1000 ), and an electric conduction ring and brush device ( 107 ) is served as an interface for transmitting the electric power, thereby inputting the excitation electric power to the auxiliary excitation winding set; and through controlling the value and the polarity of excitation voltage and current, the magnetic pole of the rotary part of magnet-motive electric machine ( 104 ) of the switched DC electric machine with conduction ring and brush ( 1000 ) can be performed with the excitation effect of auxiliary excitation or differential excitation or auxiliary compound excitation or differential compound excitation.

First claim

The invention claimed is:

1. A switch type DC electric machine ( 1000 ) having auxiliary excitation winding and conduction ring and brush, comprising:
a drive control device ( 103 ): constituted by a drive electric control device arranged to receive signals from a electric machine angular position sensor ( 106 ), for controlling the timing, the polarity, the phase sequence and the value of voltage and current of the power supply excitation when the magnetic field winding set ( 102 ) of a electric machine is operated as a motor, or controlling the timing, the polarity, the phase sequence and the value of voltage and current of outputting electric power when the magnetic field winding set of the electric machine is operated as a power generator; and controlling the voltage, the current and the polarity of excitation electric power passing a serial type auxiliary excitation winding set ( 105 ) and/or a parallel type auxiliary excitation winding set ( 108 );
a magnetic field structure ( 101 ) of the electric machine: installed with the magnetic field winding set ( 102 ) having two or more phases, coupled to a rotary part ( 104 ) of the electric machine, the magnetic loop formed by the magnetic field structure ( 101 ) and the rotary part ( 104 ) allowing the shifting magnetic field of the magnetic field winding set ( 102 ) to pass, thereby generating an electromechanical effect between the field structure ( 101 ) and the rotary part ( 104 );
the magnetic field winding set ( 102 ): constituted by a winding set installed in the magnetic field structure ( 101 ) having two or more phases; controlled by the excitation control of the drive control device ( 103 ) while being operated as a motor, thereby generating magnetic fields with opposite shifting directions, and generating a motor actuation effect with the rotary part ( 104 ); while being operated as a power generator, the magnetic field winding set ( 102 ) being controlled by the drive control device ( 103 ), thereby controlling the voltage and current of outputting electric power;
the angular position sensor ( 106 ): installed between the magnetic field structure ( 101 ) and the rotary part ( 104 ) which relatively revolve, thereby sensing the relative location relation between the shifting magnetic field generated by the magnetic field winding set ( 102 ) of the magnetic field structure ( 101 ) and the rotary part ( 104 ), and sending sensing signals to the drive control device ( 103 );
the rotary part ( 104 ): constituted by magnetic conductive materials, and coupled at a lateral side of the magnetic field structure, the rotary part ( 104 ) being provided with a magnetically-conductive pole structure having a number of magnetic poles that is the same as or different from that of the magnetic field structure ( 101 ), or having a permanent magnetic pole and a number of magnetic poles that is the same as or different from that of the magnetic field structure ( 101 ), the characteristic is that the magnetic pole of the rotary part ( 104 ) being installed with the auxiliary excitation winding set to thereby transmit the excitation electric power between the mentioned winding set and the exterior through the electric conduction ring and brush device ( 107 );
the auxiliary excitation winding set: wound on the magnetic pole of the rotary part ( 104 ), and transmitting the electric power between the mentioned winding set and the exterior through the electric conduction ring and brush device ( 107 ), wherein the serial type auxiliary excitation winding set ( 105 ) is connected in series through the electric conduction ring and brush device ( 107 ) with the electric power input end of the drive control device ( 103 ) having its output end serving to drive and control the magnetic field winding set ( 102 ), and then connected to the DC power source; and the parallel type auxiliary excitation winding ( 108 ) being connected in parallel with the DC power source or the output end of the drive control device ( 103 ) or two ends of the magnetic field winding set ( 102 );
the electric conduction ring and brush device ( 107 ): respectively installed between the revolving rotary part of electric machine and the exterior, so that while the rotary part is revolving, the electric power is enabled to be transmitted between the serial type auxiliary excitation winding set ( 105 ) and/or the parallel type auxiliary excitation winding set ( 108 ) and the exterior.

2. A switch type DC electric machine having auxiliary excitation winding and conduction ring and brush as claimed in claim 1 , wherein
the serial type auxiliary excitation winding set ( 105 ) is wound on the magnetic pole of the rotary part ( 104 ), and through the electric conduction ring and brush device ( 107 ) is connected in series with the electric power input end of the drive control device ( 103 ) having its output end serving to drive and control the magnetic field winding set ( 102 ) and then connected to the DC power source.

3. A switch type DC electric machine having auxiliary excitation winding and conduction ring and brush as claimed in claim 1 , wherein
the parallel type auxiliary excitation winding set ( 108 ) is wound on the magnetic pole of the rotary part ( 104 ), and through the electric conduction ring and brush device ( 107 ) is connected in parallel with the power end of the drive control device ( 103 );
the parallel type auxiliary excitation winding set ( 108 ) further being arranged to be connected in parallel with the output end after being controlled by the drive control device ( 103 ), thereby enabling the polarity, the excitation voltage and current to be individually controlled by the drive control device ( 103 ).

4. A switch type DC electric machine having auxiliary excitation winding and conduction ring and brush as claimed in claim 3 , wherein a negative terminal of the parallel type auxiliary excitation winding set ( 108 ) and a negative terminal of the serial type auxiliary excitation winding set ( 105 ) are jointly connected, thereby forming a long compound excitation connection, or the negative terminal of the parallel type auxiliary excitation winding set ( 108 ) is connected with the positive terminal of the serial type auxiliary excitation winding set ( 105 ), thereby forming a short compound excitation connection.

5. A switch type DC electric machine having auxiliary excitation winding and conduction ring and brush as claimed in claim 1 , wherein
the serial type auxiliary excitation winding set ( 105 ) is wound on the magnetic pole of the rotary part ( 104 ), and through the electric conduction ring and brush device ( 107 ) is connected in series with the electric power input end of the drive control device ( 103 ) having its output end serving to drive and control the magnetic field winding set ( 102 ), and then connected to the DC power source; and
the parallel type auxiliary excitation winding set ( 108 ) is wound on the magnetic pole of the rotary part ( 104 ), and through the electric conduction ring and brush device ( 107 ) is connected in parallel with the power end of the drive control device ( 103 );
the parallel type auxiliary excitation winding set ( 108 ) further being arranged to be connected in parallel with the output end after being controlled by the drive control device ( 103 ), thereby enabling the polarity, the excitation voltage and current to be individually controlled by the drive control device ( 103 ).

6. A switch type DC electric machine having auxiliary excitation winding and conduction ring and brush as claimed in claim 5 , wherein a negative terminal of the parallel type auxiliary excitation winding set ( 108 ) and a negative terminal of the serial type auxiliary excitation winding set ( 105 ) are jointly connected, thereby forming a long compound excit

Assignees

• Yang Tai-Her

Inventors

• Yang Tai-Her

Classifications

• H02K23/66

  Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches · CPC title

• H02K29/06

  with position sensing devices (H02K29/03 takes precedence) · CPC title

• H02K21/042 Primary

  with permanent magnets and field winding both rotating · CPC title

• H02P6/002 Primary

  Electricity · mapped topic

• H02P6/28 Primary

  Arrangements for controlling current (H02P6/10 takes precedence) · CPC title