Description
SPASI23 Электрический фильтр ABB
The most fundamental reason for distinguishing these two motor types is that the
design of the air gap magnetic field is different. So the following differences arise
The back EMF waveform is different:
BLDC: Approximate trapezoidal wave (ideal state);
PMSM: sine wave (ideal state);
The three-phase current waveforms are different:
BLDC: Approximate square wave or trapezoidal wave (ideal state);
PMSM: sine wave (ideal state);
Differences in control systems:
BLDC: usually includes position controller, speed controller and current (torque) controller;
PMSM: Different control strategies will have different control systems;
Controls are different:
BLDC: 120-degree square wave current, using PWM control;
PMSM: Positive Xuan wave current, controlled by SPWM SVPWM.
However, in actual control, brushless DC can also be controlled by FOC, and permanent magnet
synchronous motors can also be controlled by square waves.
Just like the controllers of electric vehicles, I have disassembled and studied three or four. The interfaces are
all the same, the control chips are different, and of course the control algorithms are also different. Electric vehicles
controlled by sine waves have very low sound when starting and running, and there is no jitter during operation;
but electric vehicles controlled by square waves have very obvious sounds, and the jitter during operation can also
be felt. The judder is due to definite torque ripples.
Motors controlled by square waves have higher power efficiency, because motors controlled by sine waves have a lower effective voltage.
4. Control technology of permanent magnet synchronous motor
Permanent magnet synchronous motors and brushless DC motors can be operated using the same control method.
Excitation system ABB module TK890F
Excitation system ABB module TK854V030
Excitation system ABB module TK853V020
Excitation system ABB module TK851V010/3BSC950262R1
Excitation system ABB module TK850V007
Excitation system ABB module TK831F
Excitation system ABB module TK831F
Excitation system ABB module TK821F
Excitation system ABB module TK821F
Excitation system ABB module TK817F
Excitation system ABB module TK817F
Excitation system ABB module TK812V150
Excitation system ABB module TK812V050
Excitation system ABB module TK812V050
Excitation system ABB module TK812V015
Excitation system ABB module TK812V015
Excitation system ABB module TK811V150
Excitation system ABB module TK811V150
Excitation system ABB module TK811V050
Excitation system ABB module TK811V050
Excitation system ABB module TK811V015
Excitation system ABB module TK811V015
Excitation system ABB module TK811F
Excitation system ABB module TK811F
Excitation system ABB module TK809F
Excitation system ABB module TK809F
Excitation system ABB module TK808F
Excitation system ABB module TK807F
Excitation system ABB module TK807F
Excitation system ABB module TK803V018 3BSC950130R1
Excitation system ABB module TK802F
Excitation system ABB module TK802F
Excitation system ABB module TK801V012
Excitation system ABB module TK801V012
Excitation system ABB module TK801V006
Excitation system ABB module TK801V006
Excitation system ABB module TK801V003/3BSC950089R1
Excitation system ABB module TK801V003
Excitation system ABB module TK801V003
Excitation system ABB module TK701F
Excitation system ABB module TK527V030
Excitation system ABB module TK516 3BSE000388R1
Excitation system ABB module TK516
Excitation system ABB module TK212A
Excitation system ABB module TK212A
Excitation system ABB module TK212
Excitation system ABB module TK212
Excitation system ABB module TD951F
Excitation system ABB module TC630
Excitation system ABB module TC625
Excitation system ABB module TC562
Excitation system ABB module TC560V2 3BSE022178R1
Excitation system ABB module TC520 3BSE001449R1
Excitation system ABB module TC514
Excitation system ABB module TC512V1 3BSE018059R1
Excitation system ABB module TC512V1
Excitation system ABB module TC512
Excitation system ABB module TC405K03
Excitation system ABB module TBU810
Excitation system ABB module TB870F
Excitation system ABB module TB870F
Excitation system ABB module TB852
Excitation system ABB module TB852
Excitation system ABB module TB850 3BSC950193R1
Excitation system ABB module TB850
Excitation system ABB module TB850
Excitation system ABB module TB845
Excitation system ABB module TB842
Excitation system ABB module TB840A 3BSE037760R1
Excitation system ABB module TB840A
Excitation system ABB module TB840
Excitation system ABB module TB826 3BSE061637R1
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