In terms of power supply, everyone may know that the inverter and the inverter power supply are auxiliary equipment for charging electrical appliances, but many people do not know what is the inverter power supply and what is the inverter. With the continuous progress of the times, electrical appliances will continue to be updated, auxiliary equipment is also constantly changing, the difference between inverter and inverter power supply, we only understand these auxiliary equipment, when buying them, we can also understand the principle, buy also centered.
What is an inverter power supply? A variable frequency power supply converts the alternating current from the main power supply from AC→DC→AC to a pure sine wave. The output frequency and voltage can be adjusted within a specific range. Unlike the inverter governor used for the speed control of electric motors, it is also different from ordinary AC power sources. The aspiring AC power supply features a stable frequency, stable voltage, zero internal resistance, and a pure sine wave (no distortion) voltage waveform. Variable frequency power supply is very close to the aspiring social AC power supply, so the advanced civilization development area is more and more using variable frequency power supply as a standard power supply, providing a superior power grid environment for public utilities, which helps to objectively evaluate the performance of electrical equipment skills and products. As you know, there are two types of variable frequency power supplies according to the different structures, namely linear amplification and SPWM switching type.
What is a frequency converter? The inverter is composed of AC-DC-AC (modulated wave) and other circuits, and the standard name of the inverter is the inverter governor. Its output voltage waveform is a square wave pulse and multiple higher harmonic components, and the voltage and frequency are not adjusted individually, but are proportionally changed, which cannot meet the requirements of AC power supply. Generally, it cannot be used as a power supply, and is generally only used for speed regulation of three-phase asynchronous motors.
Because the whole circuit of the variable frequency power supply is composed of information exchange-DC-AC-filtering, the signal waveform of the output voltage and current is pure sine wave, making it an AC power supply system with social aspirations. It is very simple to carry out the power supply system close to the social ambition of the AC.
The principle and main function of the inverter: The inverter is an electrical energy control device, which uses the on/off operation of power semiconductor equipment to convert the power of the industrial power supply into another frequency. It can be divided into AC-AC inverter and AC-DC-AC inverter. AC-AC drives are capable of converting alternating current directly into alternating current with variable frequency and voltage. The AC-DC-AC inverter first rectifies the alternating current into direct current through the rectifier, and then passes through the inverter to turn the DC power supply into alternating current with variable frequency and voltage.
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The difference between inverter and inverter power supply - Senland
What is a frequency converter?
Variable Frequency Drive (VFD) uses inverter technology and microelectronics to change the operating power frequency of the motor to control the power control unit of the communication motor.
The inverter is mainly composed of rectifier (from communication to DC), inverter, inverter (from DC to communication) ...
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Suppression method of electromagnetic interference of inverter - Sunland inverter
The operating principle of the inverter determines that it will have a certain disturbance, which may bring EMC (electromagnetic compatibility) problems to the equipment or system, and the inverter, as an electronic device, will also be affected by external electromagnetic disturbance.
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Sunland inverter control panel button function
1. The "FUNC/DATA" key is a programming key, press this button once to convert the operation mode, and press it again to read and write the function code;
2. The "SET/>>" button is the display switch and shift key, press this key to switch the display content, and press it again to ...
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The reason for adding a frequency converter to the crane control system - Senland
Prior to the introduction of frequency converters, overhead crane operators operated the cranes using contactor-based controls. For low-cycle cranes, the system is equipped with a single or two-speed motor. For cranes with higher load cycles, they use so-called wound rotor motors.
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According to the load characteristics, choose the inverter - Senland
The types of production machinery are complex, the functional and process requirements are different, and the torque characteristics are also different, therefore, before the application of the inverter, the first thing is to understand the nature of the load carried by the motor, that is, the load characteristics, and then select the inverter and the motor. There are three types of loads: ...
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Wiring specification of inverter control cabinet - Senland
The signal line and the power line must be routed separately: when using the analog signal to remotely control the inverter, the signal line of the control inverter and the strong current circuit (main circuit and sequential control circuit) can be separated from the inverter and other equipment to the analog interference, and the interval should be more than 30cm. Signal ...
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Methods to reduce the maintenance cost of inverter - Senlan inverter
Frequency converter is a widely used equipment in modern factories. This is a very expensive new type of equipment, and the maintenance price of the inverter is also very expensive, so in the process of using the inverter, we should pay attention to the use of the inverter.
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The reason for adding a frequency converter to the crane control system - Senland
Prior to the introduction of frequency converters, overhead crane operators operated the cranes using contactor-based controls. For low-cycle cranes, the system is equipped with a single or two-speed motor. For cranes with higher load cycles, they use so-called wound rotor motors.
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Senlan SV1000 servo drive wearing parts replacement
The wearing parts of the driver mainly include electrolytic capacitors for filtering and cooling fans, and their service life is closely related to the environment and maintenance of the operation.
Depending on the operating moment, the user can determine whether a wear part needs to be replaced.
Cooling ...
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The difference between a voltage signal and a current signal
The general voltage in industry is 0... 5(10)V or current 0(4)... 20mA is used as an analog signal transmission method, and it is also a method often used by program control machines. So what is the difference between the transmission method of voltage and current, and when to choose what method, the following will be briefly introduced.
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Excessive capacity of the inverter causes harm to electrical equipment - Senlan inverter
(1) The harmonic current generated will directly cause the additional heating of the motor, so that the stator of the motor surpasses the additional temperature rise of the motor itself, so that the additional output capacity of the motor will be greatly reduced.
(2) The current output of the inverter ...
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Introduction to the main series of Sunland inverter products
SB150
SB150 is a delicate and practical inverter launched by Sunland, with exquisite and delicate appearance, exquisite and perfect circuit, simple and practical function, and clear and reasonable menu distinction. At the center of the SB150 is Sunland's high-performance optimized space vector ...
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Senlan brought its products to the Guangxi International Sugar Technology and Equipment Exhibition
Recently, it is expected that Sunland will successfully participate in the 8th Guangxi World Sugar Industry Skills and Equipment Expo with excellent inverter products. According to the expected Sunland company leakage, the exhibition of the World Sugar Industry Skills and Equipment Expo, throughout the exhibition to domestic equipment manufacturers, there is no lack of foreign outstanding enterprises, exhibitors ...
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Sunland low-voltage inverter division series
1.HG1000 high-performance light-load intelligent inverter, the most cost-effective, the new series is widely used in medicine, food, packaging, cable, printing and dyeing, washing, centrifuge, dehydrator, sewage treatment, HVAC, constant pressure water supply, constant temperature control, flow control and other industries, such as fans and pumps, ...
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It is hoped that Sunland inverter will help enterprises produce sustainably
With the rapid development of the national economy, the installed capacity of captive power plants and the planning of transmission and distribution networks have been expanding. After the power system fails, if the power supply cannot be quickly restored, it will cause huge economic losses and severe social impact. How to ensure the safety and stability of the enterprise, long-term production ...
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Calculation method of braking resistance and power of inverter - Sunland inverter
(1) Brake usage rate ED%
Brake usage rate ED%, that is, the brake usage rate in the clarification book ED%. The brake utilization rate ED% is said to be the deceleration time T1 divided by the deceleration cycle T2, and the brake utilization rate is mainly to allow the braking unit and the brake resistance to have sufficient time to dissipate ...
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The remote control of the inverter meets the function - Sunland inverter
In general, the long-distance operation of the frequency converter requires the following functions:
1) Long-distance setting, if the parameters only need to be set for the first time, and do not need to be adjusted during operation, then long-distance setting is not required.
2) Long-distance start-stop, long-distance start or stop inverter, and ...
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Sunland won the "well-known brand of China's domestic inverter" for the fifth time in a row
On April 15, 2011, the "Century Tour of China's Automation Industry (CAIE2011)" was held in Beijing, and Sunland inverter was once again re-elected as "China's well-known brand of domestic inverter". Dr. Chen Bin, President of Continental Hope Group and Chairman of Hope Sunland Technology Co., Ltd., personally ...
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The manufacturing standard of Sunland inverter cabinet
Planning specifications: The planning of inverter cabinets should conform to relevant national norms and industry norms, such as GB/T15576-2018 "Low-voltage Distribution Cabinet", GB7251.1-2017 "Low-voltage Complete Switchgear and Control Equipment", etc.
Material specifications: The materials of the control cabinet should conform to the relevant codes and regulations.
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Selection and capacity matching of inverter - Senlan
1. Select the inverter according to the load characteristics
Second, when selecting the inverter, the actual motor current value should be used as the basis for the selection of the inverter, and the extra power of the motor can only be used as a reference. Secondly, it should be fully considered that the output of the inverter contains higher harmonics, which will form the power factor of the motor.
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