ABB frequency conversion technology will be more flexible and energy-efficient

Energy conservation and environmental protection industry is the first of the strategic emerging industries in the "12th Five-Year Plan". It aims to implement major demonstration projects of energy conservation and environmental protection, and promote the industrialization of high-efficiency energy conservation, advanced environmental protection and resource utilization. In the special plan during the "12th Five-Year Plan", it is clearly required that the energy consumption per unit of GDP should be reduced by 16% annually. Therefore, for the country to achieve such a goal, the pressure is also very great, but for the energy conservation and environmental protection market, the next five years will usher in a golden age of development.

In this plan, the main direction of energy-saving industry is to develop high-efficiency energy-saving technologies and equipment, including boilers, kilns, motor drive equipment, etc. To develop China's energy-saving market, the key is to solve the following problems: the development of new energy-saving technologies; energy-saving market financing; national policy support.

For China's automation companies, factory energy saving is very necessary. Usually, the electric energy consumed by motor loads accounts for about 65% of the total power demand of the factory, and the energy saving potential is usually 10% to 30%. Energy saving not only includes electricity saving, but also includes primary or secondary energy such as water saving, coal saving, natural gas saving, compressed air saving, steam saving, etc. As a device for controlling the motor speed, the frequency converter can help the motor drive system achieve energy saving.

After the fan and pump equipment is transformed by frequency conversion, the maximum energy saving can reach about 60%, and the energy saving of air compressors can reach about 30%. The service life of the frequency converter is generally about 20 years, and the investment payback period after installing the frequency converter is generally 1 to 3 years, so the benefits are obvious.

ABB inverter product series is complete and has a wide power range, covering various industrial fields and can meet the needs of various customers, from fans, pumps, conveyors, compressors to metallurgy, papermaking, textiles, ships and other industrial occasions.

Main features of ABB inverters:

The core of ABB's industrial drive is direct torque control - DTC technology. The control technology based on the DTC principle can provide excellent performance and significant advantages. For example, precise static and dynamic speed and torque control, high starting torque and longer motor cable connection; built-in drive options make installation quick and easy. ABB's industrial drive products have a long service life - this is one of the most important principles in product design. For example, consumable parts such as fans and capacitors are selected based on the principle of extending the service life of the product. At the same time, the product has strong protection capabilities, which makes ABB's drive products famous for their excellent reliability in the growing industrial field.

ABB industrial drives have a compact modular design, a wide power and voltage range and a variety of options, providing an optimized and simple cabinet installation method, especially providing redundant functions in high power.

ABB inverters have a friendly user interface, simple and fast commissioning and operation, and can be easily debugged, maintained, monitored and programmed using PC software tools. Flexible and programmable ABB industrial drives can meet the various application requirements of different industrial sites.

Optimization of process control: ABB drives can be well integrated with process control systems to achieve optimal speed and torque while maintaining high precision, thus ensuring the stable quality of the final product of the production line.

Reduced maintenance costs: ABB inverters can adjust the speed and torque of the motor, thus reducing wear on the motor and driven mechanical equipment.

In the context of energy conservation and consumption reduction, the combination of frequency conversion technology and new energy technology has a broad development prospect in the fields of wind power generation and solar power generation. With its leading frequency conversion technology, years of accumulated engineering experience and strong R&D capabilities, ABB has made great progress in the fields of wind power converters and solar power converters. In addition, frequency conversion technology can also be perfectly combined with electric vehicles.

If the customer's energy-saving solution is for the motor drive system, I think energy saving should be considered from the perspective of the entire system, which will be more effective. That is, the following aspects should be considered: use high-efficiency motors to achieve energy saving; match the motor and load reasonably, and try to avoid over-selection; use variable frequency speed regulators to achieve variable frequency speed regulation energy saving; pay attention to energy saving in the mechanical aspects of the system, such as the gearbox; try to use high-efficiency fans, water pumps and compressors; pay attention to the harmonics and three-phase balance of the power grid.