3BHE009681R0101 Power filter ABB Product details:
3BHE009681R0101 is an interface communication module from ABB, with product model 3BHE009681R0101. This module is commonly used in industrial automation systems,
especially in the field of process control. Here are some possible application and product operation areas:
Industrial automation: Th3BHE009681R0101 communication module may be used to communicate with other automation equipment, control systems,
or sensors to achieve automation and integration of industrial production lines.
Process control: This module may be used to monitor and control various processes, such as chemical plants, power plants, pharmaceutical plants,
etc. Through communication with other devices, it can achieve data exchange and control instruction transmission.
PLC (Programmable Logic Controller) system3BHE009681R0101 may be integrated into the PLC system for communication with other PLC modules or
external devices, achieving centralized management of the entire control system.
Data collection and monitoring: In the data collection system3BHE009681R0101 can be used to obtain data from various sensors and devices,
and transmit this data to the monitoring system for real-time monitoring and analysis.
Remote monitoring and operation: Through collaborative work with other communication modules3BHE009681R0101 may support remote monitoring and operation,
allowing operators to monitor and control the production process from different locations.
Contact person: Mr. Lai
Mobil：17750010683
WeChat：17750010683
WhatsApp：+86 17750010683
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.
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