The matching of the inverter and the motor - Delixi

Create Date: 2024-8-30 12:03:23|Source: Delixi

There are three types of motor inverters

●Ordinary function type. The fundamental V/F frequency conversion speed regulation function, speed regulation accuracy and torque control function requirements are not high for general use can be satisfied.

●High function type. V/F frequency conversion speed regulation with torque control function, and constant torque load of hoist is widely selected.

●Vector control or direct torque control type. It is necessary to choose vector control inverter for high-performance applications such as steel rolling and papermaking that require high dynamic functions.

                               The matching of the inverter and the motor - Delixi

The use of frequency converters

In the era when the inverter technology is not yet mature, most of the fans and pumps used in high-performance use are pole-changing multi-speed three-phase asynchronous motors, but because they are step-by-step speed regulation, they cannot do wide-scale smooth speed conditioning, let alone function optimization. Now the inverter is very widely used, and the inverter motor specially used for the load of fans and pumps has been planned and optimized, and the electrical functions such as speed regulation scale efficiency and power factor can be maintained at a high level.

Triple jump of load or output conditioning of fans, pumps, etc

● Traditional conditioning methods. After adjusting the baffle of the inlet or outlet and the opening of the valve to adjust the air supply and water supply, the input power is large, and a lot of energy is consumed in the interception process of the baffle and valve.

●Pole-changing multi-speed three-phase asynchronous motor has stepwise speed regulation. When running at full load, the pole-changing multi-speed three-phase asynchronous motor runs at high speed; The air volume or water supply needs to be adjusted to an hour, and the motor is converted to medium or low speed operation, and the input power is greatly reduced, achieving an extremely significant energy saving effect.

●Frequency conversion speed regulation, three-phase asynchronous motor, stepless speed regulation. When using frequency conversion speed regulation, if the flow requirement is reduced, the speed of the descending pump or fan can meet the requirements. Generally, the special inverter motor used has the optimal functional index within the wide speed regulation scale, and the ratio of "flow/energy consumption" has been maintained at a high level.

Soft start and permanent magnet synchronous frequency conversion application

The asynchronous motor is driven by an inverter, which not only completes the stepless speed regulation, but also controls the starting current of the motor within the scale of less than 2 times the rated current, and the starting torque can also reach about 2 times the rated torque. Therefore, there is no starting problem for the inverter-driven three-phase asynchronous motor, and the high-performance soft start is its innate characteristic.

High-performance permanent magnet synchronous motors, such as permanent magnet motors for new energy vehicles and permanent magnet motors for ship drives, are all driven by inverters, which are generally special drive power modules with a high degree of integration, which are integrated with the motor body to form a permanent magnet synchronous motor system.

Inverter drive has broadened the application field of motors, and many planning taboos have been broken because of this, such as low-speed direct-drive wind turbines as low as tens of revolutions and hundreds of revolutions, high-speed direct-drive spindles up to tens of thousands of revolutions, and special motors for automobile drives. With the promotion of application and the continuous refinement of professional needs, the inverter for motor will develop in the multi-dimensional direction of high-performance general-purpose, special-purpose mechatronics and intelligent manufacturing high-end application, and promote the continuous transformation and promotion of motor planning concept and motor production.

More on that
Delixi selection wire requirements Delixi selection wire requirements

1. Conductors 1. Color High-quality copper is called "red copper" or "red copper" – as the name suggests, this copper is reddish, purple, and dark red in color. The worse the copper, the lighter the color and the more yellow it is, which is called "brass". 2. Thickness ...

Delixi voltage regulator in the case of no load stable work? Delixi voltage regulator in the case of no load stable work?

Most modern LDOs and switching regulators operate reliably under no-load conditions, and some older power devices require a minimum load to ensure stability, because one of the electrodes that needs to be compensated is affected by the payload resistance. For example, the LM1117 requires a load current of at least 1.7 mA (most ...

The change of frequency conversion control mode - Delixi inverter The change of frequency conversion control mode - Delixi inverter

In the process of practical speed regulation, an ordinary frequency-adjustable communication power supply can not meet the requirements of speed regulation and control of asynchronous motors, and must also take into account the effective use of the motor magnetic field, the suppression of the starting current and the acquisition of the desired torque characteristics, such as low-frequency torque characteristics.

Delixi CDHR16 series strip fuse disconnector Delixi CDHR16 series strip fuse disconnector

CDHR16 series strip fuse disconnector with an additional frequency of 50Hz, an additional operating voltage of 500/690V, and an additional operating current of 630A, which is mainly suitable for power distribution circuits and motor circuits with high short-circuit current, is used as a power switch, isolation switch, and as AC circuit short-circuit protection.

Voltage regulator failure and solution - Delixi Voltage regulator failure and solution - Delixi

1. There is no output, no voltage indication or no start when the machine is turned on. Overvoltage or undervoltage maintenance 1. Adjust the internal output voltage adjustable potentiometer 2. The wrong phase and the lack of phase are maintained, and the two phases are arbitrarily replaced by three phases 3. The main control circuit board is broken 3. Replace 4. The output AC has been ...

Precautions for the use of Delixi leakage protector Precautions for the use of Delixi leakage protector

1. If the two branch lines are connected, the current in the zero line flows to each other, which destroys the working current balance in the zero sequence current transformer and causes the leakage protector to malfunction. If you want to use the neutral line of the power branch line as the neutral line of the lighting branch line nearby, it will cause the leakage of the power branch line.

Delixi low-voltage AC contactor can not be suction reason Delixi low-voltage AC contactor can not be suction reason

AC contactor can sometimes be used for a long time can not be suction situation, although this is not a common problem of AC contactor, but AC contactor can not be suction will affect the efficiency of the operation and even damage the production equipment, with the equipment for too long, together without outstanding maintenance, are ...

The difference between circuit breaker and disconnector - Delixi The difference between circuit breaker and disconnector - Delixi

The disconnector is a kind of switching equipment that is mainly used for "blocking the power supply, reversing the operation, and connecting and blocking the small current circuit", without arc extinguishing function. When the barrier switch is divided into directions, there is an insulation distance between the contacts that meets the specified requirements and a significant disconnection mark; When in the azimuth, it can carry ...

Characteristics and parameters of industrial molded case circuit breaker - Delixi Characteristics and parameters of industrial molded case circuit breaker - Delixi

1. Extra limit short-circuit breaking can be used for Icu There are two types of breaking capacity targets for circuit breakers: additional limit short-circuit breaking capacity of 4U and additional operating short-circuit breaking capacity Ics. As a characteristic parameter, ICS is not only a brief consideration of the breaking ability of the circuit breaker, but also a breaking purpose.

Circuit breaker tripping conditions and solutions - Delixi Circuit breaker tripping conditions and solutions - Delixi

1. The problem current reaches or exceeds the set operating current value. 2. The problem current continues to arrive at the set time of action. Therefore, it is necessary to ensure that the Delixi circuit breaker will not trip beyond its liquid level. Current setting ...

Delixi Electric CDW3 universal circuit breaker introduction Delixi Electric CDW3 universal circuit breaker introduction

The CDW3 series frame circuit breakers are rated from 400A to 6300A and 415V/690V AC for extreme environmental conditions of 50 Hz AC and -40°C to 70°C. It is mainly used in the distribution network, distributing electric energy, protecting lines and power supply equipment from ...

Delixi selection of wire points Delixi selection of wire points

When buying wires, the first thing to look at is two aspects: conductors and insulation. 1. Conductors 1. Color High-quality copper is called "red copper" or "red copper" - the color of this copper is red, purple, and purple-red. The worse the copper ...

Delixi meter is too fast or too slow causes and solutions Delixi meter is too fast or too slow causes and solutions

Common fault phenomenon: the meter is fast or slow. The error is positive (negative) and does not meet the requirements Causes: 1. The product has had severe impact and vibration during transfer, installation and transportation; 2. The ambient temperature, preheating and testing time of the product ...

Delixi inverter common problems Delixi inverter common problems

1. The pressure of Delixi inverter system is unstable and simple vibration? Answer: The pressure of the system is unstable, which may be due to the following reasons: A. There is a problem with the orientation of the pressure of the pressure sensor collection system, the pressure collection point is too close to the water pump outlet, and the pipeline pressure is affected by the water outlet ...

Delixi product parameter unit VF and V difference Delixi product parameter unit VF and V difference

Voltage vf and v difference: The two have different meanings, vf on the battery represents the feedback voltage, while v represents the capacity of the battery, which is the unit of measurement of voltage. Lithium battery is a kind of battery with lithium metal or lithium alloy as the positive/negative electrode data and the use of non-aqueous electrolyte solution. ...

The principle and operation method of Delixi inverter operation The principle and operation method of Delixi inverter operation

  The principle and operation method of Delixi inverter: 1. No-load energizing test of inverter 1. Ground the grounding terminal of the inverter. 2. Pass the power input terminal of the inverter through the leakage maintenance switch.

Delixi DZ47sGQF self-resettable over/undervoltage protector Delixi DZ47sGQF self-resettable over/undervoltage protector

In order to meet the needs of business development, Delixi Electric newly upgraded to create DZ47sGQF Navigator series of self-resettable over- and under-voltage protectors, the new products have a leading technology platform, better performance and quality, can completely replace the old product DZ47GQF. ...

The difference between the poles of Delixi circuit breaker The difference between the poles of Delixi circuit breaker

Circuit breakers account for a very large proportion of electrical sales and have a wide range of applications, but there are different standards for circuit breakers. For example, 1P, 1P+N, 2P, etc., there are also differences between them. 1. 1P circuit breaker, it is a single-stage ...

Capacitor identification method of Delixi inverter Capacitor identification method of Delixi inverter

1. The capacitance is generally indicated by "C" plus a number in the circuit (e.g., C25 indicates the capacitance numbered 25). A capacitor is an element composed of two metal films that are placed next to each other and separated by an insulating material. The characteristic of the capacitor is first and foremost the communication through the DC block. The size of the capacitance is ...

Working principle of linear voltage regulator - Delixi Working principle of linear voltage regulator - Delixi

1. The structure and working principle of the linear voltage regulator: A commonly used low-voltage communication regulated power supply. It consists of three parts: transformer, inductor, and capacitor divider. 2. Single-phase voltage regulator: Single...

CATEGORIES BYPASS
Customer Service Center

Online Consultation:QQ


ContactContact

Contact: Manager Huang

Contact QQ: 3271883383

Contact number: 13522565663


Scan the code to add WeChat (please save the picture first on the mobile phone)

working hoursworking hours

Weekdays: 9:00-17:00

Holidays: Only emergencies are handled

Contact us

Contact us

Contact number QQ consultation
QQ consultation

3271883383

Company address
Back to top