Description
hardware flow control. It is an ideal choice in the field of industrial automation.
We can perform simulation algorithms on Matlab.
3. The role of frequency converter
1. Frequency conversion energy saving
The energy saving of frequency converters is mainly reflected in the application of fans and water pumps. In order to ensure the reliability of production, various
production machines have a certain margin when they are designed to be equipped with power drives. When the motor cannot operate at full load, in addition to
meeting the power drive requirements, the excess torque increases the consumption of active power, resulting in a waste of electrical energy. The traditional speed
adjustment method for fans, pumps and other equipment is to adjust the air supply volume and water supply volume by adjusting the opening of the baffles and valves
at the inlet or outlet. The input power is large, and a large amount of energy is consumed in the interception process of the baffles and valves. middle. When using variable
frequency speed regulation, if the flow requirement is reduced, the requirement can be met by reducing the speed of the pump or fan.
The purpose of using a frequency converter for a motor is to regulate speed and reduce starting current. In order to produce variable voltage and frequency, the device first converts
the alternating current from the power supply into direct current (DC), a process called rectification. The scientific term for a device that converts direct current (DC) into alternating
current (AC) is “inverter”. Generally, an inverter converts DC power into an inverter power supply with a certain fixed frequency and voltage. The inverter with adjustable frequency and
adjustable voltage is called a frequency converter. The waveform output by the frequency converter is a simulated sine wave, which is mainly used for speed regulation of three-phase
asynchronous motors, also called a variable frequency speed regulator. For variable frequency inverters that are mainly used in instrumentation and testing equipment and
have higher waveform requirements, the waveforms need to be sorted and can output standard sine waves, which are called variable frequency power supplies. Generally, the price
of variable frequency power supply is 15-20 times that of the inverter. Since the main device in the inverter equipment that produces changing voltage or frequency is called “inverter”,
the product itself is named “inverter”, that is: inverter.
Frequency conversion does not save power everywhere, and there are many occasions where using frequency conversion does not necessarily save power. As an electronic circuit,
the frequency converter itself also consumes power (about 3-5% of the rated power). A 1.5-horsepower air conditioner consumes 20-30W of electricity, which is equivalent to a
continuous light. It is a fact that the inverter runs at power frequency and has a power-saving function. But his prerequisite is:
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330703-000-070-10-02-05 Bently Nevada 11mm probe
330106-05-30-10-02-00 Bently Nevada 3300 XL 8 mm reverse mount probe
330104-00-05-10-02-CN Bently Nevada 3300 XL 8mm access probe
330130-040-00-00 Benty Nevada Extension cable
330103-00-04-10-02-00 Bently Nevada 3300 XL 8mm access probe
3300/16-11-01-03-00-00-01 Benty Nevada XY/Gap dual vibration monitor
Pilz 301140 Pilz Secure bus input/output module
146031-02 Benty Nevada 100Base-FX(Optical fiber)I/O module
125720-01 Benty Nevada Data Manager I/O module
128240-01 Benty Nevada Preloader/seismic monitor I/O module
086349-002 ABB Control card module
84152-01 Benty Nevada Input/output and recording terminal/four relay modul
6410-009-N-N-N PACIFIC SCIENTIFIC Pulse encoder
1785-L40C15 Allen-Bradley programmable logic controller
1785-CHBM Allen-Bradley backup module
1794-ASB Allen-Bradley remote I/O communication adapter module
1771-WH Allen-Bradley PLC-5 field wiring arm for I/O modules
1771-OX Allen-Bradley power contact output module
1771-OFE2 Allen-Bradley analog output module
1771-IXE Allen-Bradley Thermocouple input module
1771-IBD Allen-Bradley Digital DC input module
1771-A2B Allen-Bradley I/O chassis
1769-L23E-QB1B Allen-Bradley package controller
1768-L43 Allen-Bradley programmable logic controller
1761-NET-ENI Allen-Bradley Ethernet /IP communication interface
1756-TBS6H Allen-Bradley detachable junction board
1756-PSCA2A Allen-Bradley case adapter module
1756-PA75 Allen-Bradley Redundant DC power module
1756-PA72 Allen-Bradley Standard power supply
1756-L73XT Allen-Bradley ControlLogi-XT controller
1756-L61 Allen-Bradley ControlLogix controller
1756-CNB Allen-Bradley interface module
1747-L542 Allen-Bradley SLC 5/04 processor
1747-L553 Allen-Bradley SLC 5/05 processor
1747-L541 Allen-Bradley SLC 5/04 processor
1747-CP3 Allen-Bradley programmer cable
1747-ASB Allen-Bradley remote I/O adapter module
1747-ACNR15 Allen-Bradley Control network input/output adapter
1746-P2 Allen-Bradley SLC 500 power supply
1746-P1 Allen-Bradley SLC 500 power supply
1746-OX8 Allen-Bradley SLC 500 digital contact output module
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