Description
CP676 3ABD00038801 Контроллер ABB
Швейцария, и входит в десятку крупнейших швейцарских транснациональных корпораций.CP676 3ABD00038801
химическая, нефтехимическая, фармацевтическая, целлюлозно – бумажная, нефтепереработка; Оборудование приборов: электронные приборы, телевизоры и оборудование для передачи данных,
генераторы, гидротехнические сооружения; Каналы связи: интегрированные системы, системы сбора и распространения;CP676 3ABD00038801Строительная промышленность: коммерческое и промышленное строительство.
2. Principle of frequency converter
In embedded development, the control of motors is often involved. Currently, frequency conversion control of AC motors is widely used, so let”s briefly introduce the
frequency converter by looking at the diagram, assuming that you already understand the principle of the motor.
The block diagram is as follows:
The frequency converter is mainly composed of rectifier (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit, microprocessing unit, etc.
The inverter relies on the switching of the internal IGBT to adjust the voltage and frequency of the output power supply, and provides the required power supply voltage
according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter also has many protection functions.
, such as overcurrent, overvoltage, overload protection, etc. With the continuous improvement of industrial automation, frequency converters have also been widely used.
A typical inverter system diagram is shown below. It mainly includes operation panel, VFD controller, motor and other parts.
1. Typical structure:
Mainly includes: control platform, measurement circuit, power circuit, protection circuit, etc.
There are two common types of frequency converters: voltage type and current type. Among them, the power inverter part mostly uses power
tubes such as IGBT and IGCT.
2. Typical algorithm:
Among them, the control algorithm represented by Siemens is mainly based on coordinate transformation (vector control). Friends who are
interested in the algorithm represented by ABB can search for information by themselves (direct torque control) and will not go into details here.
3. Vector control:
Many chip MCU and MPU manufacturers have provided block diagrams and algorithm libraries for variable frequency vector control. Those
who are interested can study it. For example, the following figure is a block diagram provided by Microchip
ABB 3BHB003152P201 3BHB003152P104
ABB GVC700AE01 3BHB003152P104
ABB GVC700AE01 3BHB003152P201
ABB 3BHB004027R0101 3BHB003152P104
ABB 3BHB004027R0101 3BHB003152P201
ABB 3BHB004027R0101 GVC700AE01
3BHB004027R0101 GVC700AE01 3BHB003152P104
3BHB004027R0101 GVC700AE01 3BHB003152P201
3BHB004027R0101 GVC700AE01 3BHB003152P201 3BHB003152P104
ABB 3BHB005171R0101
ABB CVC750AE101
ABB CVC750AE101 3BHB005171R0101
ABB 3BHE027632R0101
ABB DDC779BE02
ABB 3BHE006805R0002
ABB 3BHE006805R0002 DDC779BE02
ABB GVC736BE101
ABB 3BHE019719R0101
ABB 3BHE019719R0101 GVC736BE101
ABB 3BHE039204P106
ABB 3BHE036204P201
ABB GVC736CE101
ABB 3BHE039203R0101
ABB 3BHE036204P201 3BHE039204P106
GVC736CE101 3BHE036204P201 3BHE039204P106
ABB GVC736CE101 3BHE039204P106
ABB GVC736CE101 3BHE036204P201
3BHE039203R0101 GVC736CE101 3BHE036204P201 3BHE039204P106
3BHE039203R0101 GVC736CE101 3BHE036204P201
ABB 3BHE039203R0101 3BHE039204P106
ABB 3BHE039203R0101 3BHE036204P201
ABB 3BHE039203R0101 GVC736CE101
ABB FPX86-9345–B HL000986P0006
ABB 3BHL000986P0006
ABB LXN1604-6
ABB 3BHL000986P7000
ABB 3BHL000986P7000 LXN1604-6
ABB 3BHL000986P7001
ABB 3BHT300005R1
ABB 3BHE043576R0011
ABB UNITROL 1005-0011 ECO
ABB UNITROL 1005-0011 ECO 3BHE043576R0011
ABB UNS0121A-Z,V1
ABB 3BHE035301R1002
ABB automatic voltage regulator UNITROL 1010
ABB 3BHE035301R1002 UNS0121A-Z,V1
ABB UNITROL 1010 UNS0121A-Z,V1
ABB UNITROL 1010 3BHE035301R1002
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