Description
PFTL101B-20.0kN 3BSE004203R1 Модуль ввода / вывода ABB
Швейцария, и входит в десятку крупнейших швейцарских транснациональных корпораций.PFTL101B-20.0kN 3BSE004203R1
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;PFTL101B-20.0kN 3BSE004203R1Строительная 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
Display operation panel SA801F
Display operation panel SA801F
Display operation panel SA610
Display operation panel SA168 3BSE003389R1
Display operation panel S900-BI100
Display operation panel S503X
Display operation panel S503X
Display operation panel S200-TB3T
Display operation panel S200-TB3
Display operation panel S200-PS13
Display operation panel S200-IR8
Display operation panel S-113N 3BHB018008R0101
Display operation panel S-113N 3BHB018008R0001
Display operation panel s-113N 3BHB018008R0001
Display operation panel S-093H 3BHB030478R0309
Display operation panel S-093H 3BHB030478R0309
Display operation panel S-076N 3BHB009884R0021
Display operation panel S-073N 3BHB009884R0021
Display operation panel S-073N 3BHB009884R0021
Display operation panel RXTUG 22H 1MRK000592-A
Display operation panel RXPPK 2H 1MRK001615-AA
Display operation panel RXIIK 4 1MRK001643-AA
Display operation panel RXIDK 2H 1MRK000838-HA
Display operation panel RXEDK 2H 1MRK000841-RA
Display operation panel RXDS 4 1MRK000344-A
Display operation panel RX865
Display operation panel RX845
Display operation panel RX835
Display operation panel RX835
Display operation panel RW857F
Display operation panel RW856F
Display operation panel RVC6-5A
Display operation panel RVC6-5A
Display operation panel RTAC-01
Display operation panel RMU811
Display operation panel RMIO-02C
Display operation panel RLY-100
Display operation panel RLM01 3BDZ000398R1
Display operation panel RLM01
Display operation panel RLM01
Display operation panel RLM01
Display operation panel RLM01
Display operation panel RINT-5521C
Display operation panel RINT-5521C
Display operation panel RID-04 3HNA020882-001
Display operation panel RFO810
Display operation panel RF620
Display operation panel RF615
Display operation panel RF615
Display operation panel RF533 3BSE014227R1
Display operation panel RF522 3BSE000743R1
Display operation panel REX521GHHGSH51G
Display operation panel REX521GBHPLB01G
Display operation panel REX010
Display operation panel REU615E_D
Display operation panel REU610CVVHCNR
Display operation panel RET670
Display operation panel RET670
Display operation panel RET670
Display operation panel RET650
Display operation panel RET650
Display operation panel RET630
Display operation panel RER133
Display operation panel REM615
Display operation panel REM545BM223AAAA
Display operation panel REM545BM222BAAA
Display operation panel REM543CM216AAAA
Display operation panel REM543CM214AAAB
Display operation panel REG670
Display operation panel REG216
Display operation panel REF620C
Display operation panel REF615R
Display operation panel REF615K
Display operation panel REF615F
Display operation panel REF615E
Display operation panel REF615C-E
Display operation panel REF615C-D
Display operation panel REF615A_E HAFAABAAABE1BCA1XE
Display operation panel REF615
Display operation panel REF611C-E
Display operation panel REF610C11LCLR
Display operation panel REF610
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