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Your location: Home > Related Articles > What are the reasons for the inverter\’s common faults, mainly the following three points

What are the reasons for the inverter\’s common faults, mainly the following three points

Author:QINSUN Released in:2023-04 Click:109

What are the most common inverter faults?

Inverter maintenance Faults are subdivided in Internal and external factors mainly include the following three points:

1, the impact of the installation environment and prevention

Because the frequency converter is an electronic device, there are strict requirements for the environment. For example, vibration can cause damage to electronic devices, and humid environments, corrosive gases and dust can cause device corrosion, poor contact and reduced insulation performance.

Temperature is another important \"cause\" that affects inverter performance. Since the temperature of the inverter itself will continue to rise during operation, if the external temperature is the same. If it is high, the heat dissipation is not good, which will affect the function of the inverter.

2, abnormal power supply and operation

Because the power cable is visible outside, must withstand the invasion of wind, rain, snow and frost, resulting in line aging, phase loss, low voltage, power failure and other phenomena during power supply, and the changing voltage wave is easy to affect the frequency converter, resulting in abnormal operation and affect other performance , is doomed to failure over time.

3, External Electromagnetic Induction Interference and Treatment

If there is interference around the inverter They will penetrate the inside of the inverter through radiation or power lines, causing the control circuit to malfunction, resulting in abnormal operation or shutdown, and in severe cases even damage the inverter. It is important to check the anti-interference ability of the inverter itselfe improve, but due to the limitation of device cost, it is more reasonable and necessary to take external noise reduction measures to eliminate sources of interference.

The new development direction of frequency converter:

1, network intelligence.

Intelligent frequency converter does not need to set many parameters when it is used, it has fault diagnosis function, and it has high stability, high reliability and practicability. Using the Internet can realize the linkage of multiple frequency converters, and even the comprehensive management and control system of factory-based frequency converters.

2, specialization and integration.

Specialized frequency converter manufacturing can enhance the performance of the frequency converter in some field, such as fan and water pump frequency converters, special frequency converters,m inverters for elevators, Special frequency converter for hoisting machines, special frequency converter for voltage regulation, etc. In addition, the frequency converter is usually integrated with the motor, which makes the frequency converter a part of the motor, which can make the volume smaller and make the control more convenient.

3, energy saving, environmental protection and pollution-free.

Protect the environment, manufacture\"Green\" products are a new concept of man. The electrical drive device should be aimed at energy saving and low pollution during the energy conversion process of the frequency converter, so as to minimize the noise of the frequency converter during operation and the pollution of the power grid by current harmonics.

4. Adapt to new energy sources.

Now power electronics technology, microelectronics technology and modern control technology are developing withan astonishing speed. These advances concentrate in the large capacity of the AC speed control device, the high performance and multi-functionality of the frequency converter, and the miniaturization of the structure.

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