• Duration:49 minutes and 54 seconds
  • Date:2021/02/16
  • Uploader:抛砖引玉
Introduction
keywords: Frequency Converter
 This course is a high-quality teaching video on the principles and applications of inverters taught by Professor Li Jiusheng of Harbin Institute of Technology. The complete course has a total of 36 hours.
The main circuit of the frequency converter is the power conversion part that provides voltage-regulated and frequency-modulated power to the asynchronous motor. The main circuit of the frequency converter can be roughly divided into two categories. The voltage type is a frequency converter that converts the DC of the voltage source into AC, and the filter of the DC circuit. It's a capacitor. The current type is an inverter that converts DC from a current source into AC, and its DC loop filter is an inductor. It consists of three parts: the "rectifier" that converts industrial frequency power into DC power, the "smoothing circuit" that absorbs the voltage pulsations generated in the converter and inverter, and the "inverter" that converts DC power into AC power. Transformer".
Unfold ↓

You Might Like

Recommended Posts

Will UWB positioning be as accurate as Beidou?
The deployment of the Beidou satellite navigation system was completed some time ago, which can provide global users with all-weather, all-day, high-precision positioning and navigation services. Posi
兰博 RF/Wirelessly
Brief Introduction of Non-Magnetic Coil Solution for National Technology Intelligent Water Meter
Solution IntroductionThe non-magnetic smart water meter solution is based on the MCU chip to realize the water meter related metering functions. The module is divided into a transmitting coil and a re
火辣西米秀 Domestic Chip Exchange
What is a Current Transformer? How to Design a Current Transformer?
Using a current transformer can reduce the loss when measuring the primary current of the converter. For example, in a high-power switching power supply, a current transformer coil is needed to monito
灞波儿奔 Analogue and Mixed Signal
Why are the edges of the lines always uneven when connecting manually?
Why are the lines drawn always uneven during the connection process? How to set this?
aixuexi呀呀呀呀 PCB Design
What are the conditions for program interruption in the figure?
This program is to make the P0.0 port output PWM waveform to control the LED light and form a gradual brightness effect.The while (1) loop that is always executed in the main function is to make the d
shaorc 51mcu
How is the current transformer used?
How is the current transformer used? Why are some models 20A/1A and some 20A/1mA? What is the difference? How to make the microcontroller measure?
sky999 Sensor

Recommended Content

可能感兴趣器件

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews


Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京B2-20211791 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号