Views: 79 Author: Site Editor Publish Time: 2021-03-14 Origin: Site
Choosing Siemens 6SE70 series inverters, through its internal software debugging technology, can solve many problems in light and heavy industries and information industries. In recent years, especially in the face of COVID-19, the domestic smart inverter industry has encountered unprecedented pressure. Although the current market situation of multi-function inverters has slowed down, there is still a long way to go before the ice breaks.
Here is the content list:
What is the analysis on basic composition of Siemens 6SE70 series inverters?
How to solve the braking problem of Siemens 6SE70 series inverters?
What inspiration does the success of Siemens 6SE70 series inverters have for domestic industry?
Unlike traditional diode or thyristor rectifier feedback units, Siemens 6SE70 series inverters can convert industrial frequency power into pulsating DC power through the AFE unit. The AFE of Siemens 6SE70 series inverters is an inverter with IGBT modules. The grid current can be adjusted to sinusoidal, which means that the harmonic energy fed back to the main power supply is minimal.
The control unit of Siemens 6SE70 series inverters include a control part, a pre-charge part, and a filter part. Among them, the control part is mainly composed of the main control board, drive board, power supply board, PG card, and communication card. It transmits control signals to the AFE unit and inverter as the start, stop and monitor protection of the inverter.
In addition, the main function of the pre-charging circuit of Siemens 6SE70 series inverters is to reduce the input inrush current. Because the voltage across the filter capacitor is zero volts at the moment when Siemens 6SE70 series inverters are switched on to the mains. If the filter capacitor is not pre-charged with current limit, the inrush current is quite large, which may burn out the insurance and rectifier bridge.
When the motor is in the process of deceleration and emergency stop, the motor is in the state of regenerative power generation. Siemens 6SE70 series inverters have many methods to deal, such as dynamic braking, energy storage braking, and energy feedback braking.
At present, Siemens 6SE70 series inverters generally adopt energy-consumption braking method. By using a braking resistor, the power generated by the motor is converted into heat energy through the resistor and dissipated.
Energy storage in the energy storage braking method is also limited, which is also a threat to Siemens 6SE70 series inverters.
Compared with the other two methods, energy feedback is a good way to deal with regenerative power generation and a good way to brake. It ensures the safety of Siemens 6SE70 series inverters, saves energy, and enhances the braking function of the motor.
In the future, the system concept of Siemens 6SE70 series inverters will be an important direction. The market is no longer a competition for a single product, but a competition for the value of the entire system.
1. The first is the development of industry-specific machines. In today's fierce competition in the general-purpose inverters market, industry-specific machines have been given more significance.
Siemens 6SE70 series intelligent inverters implement a customized route of strategic cooperation with customers, which not only provides customers with tailor-made integrated solutions, but at the same time, it also effectively expands the industry span of products.
2. The second is to do an intelligent upgrade of intelligent multifunction inverters products. With the advent of the Industry 4.0 era, Siemens 6SE70 series inverters not only improve energy-saving efficiency, but also have the characteristics of networking and intelligence.
3. Thirdly, all stable smart inverter companies should understand that system solutions are an important direction for the industry to make breakthroughs. Only products that can help customers save labor costs and improve production line efficiency and manufacturing precision and efficiency can be more competitive.
Siemens 6SE70 series intelligent inverters are at the forefront of the industry, giving practical conversion efficiency, providing a basis for future equipment selection and design optimization, and also providing strong data support for the development of intelligent inverters. Shenzhen Juson Automation Company Limited. provides Siemens 6SE70 series inverters with cutting-edge technology to provide you with one-stop service to ensure the safety and efficiency of your construction.
