Industrial energy saving will bring huge automation market
With the continuous improvement of industrial automation, industrial energy conservation has become one of the core of industrial development, the inverter also got a very wide range of applications, energy conservation and environmental protection at the core of the industrial economic development of our country, for the sustainable development of China's industrial direction at the same time, also in the effective drive inverter industry sustainable development in our country.
With the continuous improvement of industrial automation, industrial energy conservation has become one of the core of industrial development, the inverter also got a very wide range of applications, energy conservation and environmental protection at the core of the industrial economic development of our country, for the sustainable development of China's industrial direction at the same time, also in the effective drive inverter industry sustainable development in our country, the inverter industry continue to expand the market share in China, and with a strong force of development has become an important basis of our country's industrial economic development.
Frequency converter products due to the speed adjustment with flexible, obvious advantages in the field of electric power and energy saving.
From the current development trend, the inverter industry will continue to be on the development road of speed regulation and energy saving.
Mainly used in the need to change the implementation of ac motor speed, change the drive mechanical properties to meet the requirements of production process, more on the fan and water pump applications.
When the motor can only be run at the rated speed, the driving mechanical also can run at a rated speed.
Taken together, frequency converter mainly through power factor compensation and soft start two ways to achieve energy saving effect.
Power factor compensation, due to the reactive power will increase the fever of line loss and equipment, combined with the low power factor resulting in a loss of active power grid, a large number of reactive power consumption line of equipment efficiency is low, waste is serious.
In the use of variable frequency speed regulating device, frequency converter internal filter capacitance effect, thus reducing reactive power loss, increase the active power of power grid.
Energy-saving aspects of soft start, the motor can cause serious impact to the grid, at the same time also to the requirement of grid capacity is too high, produce large current when starting and vibration when the damage to the baffle and valve, to the detriment of the service life of equipment, piping.
And the use of frequency converter, soft start function makes the starting current starting from scratch, to reduce the impact of power grids and the requirement of power supply capacity, prolong the service life of the equipment and valves, thereby saving the maintenance cost of the equipment.
But it is important to note that in the use of frequency converter should avoid small horse-drawn cart.
Causes of this problem is based on the production of the design of working conditions, so that the design and installation for saving money, many places have adopted the variable frequency power is less than the motor rated power Settings.
But with the development of technology, process condition change, small horse-drawn cart problems inevitably occur, causing the inverter can not run normally.
Inverter industrial application advantages obviously five-year the frequency conversion technology was first used to industry planning to stepless speed regulation of motor, by controlling the on-off of the semiconductor devices change the output frequency, in order to realize to the back-end drag ac motor soft start and frequency control of motor speed and improve the operation accuracy, and achieve over-current, over-voltage protection, overload protection.
Contrast the past mechanical speed control mode, a wide range of frequency control of motor speed, can reach 100% ~ 5%;
High control precision, can achieve & plusmn;
Because it is infinitely adjustable-speed, can achieve motor soft start and automatic control of the whole production system, and then reduce the impact on the grid.
Experts compare the effect of several major energy-saving products in the electrical equipment, including the inverter efficiency is as high as 30% ~ 60%, simply add in motor front when using, small to change the original equipment.
Therefore, in the 12th five-year plan proposed by manufacturing equipment upgrading and industrial energy conservation and environmental protection projects, established the future industry will continue to walk the path of the speed regulation and energy saving and development.
Subdivided into products and is expected to low voltage frequency converter in an automated transformation and import substitution for the main line, domestic enterprises will focus on the development of control and drive technology;
Downstream of the high voltage inverter based on the national energy conservation and environmental protection policy, still in electric power, metallurgy, cement and other large industrial equipment modification is given priority to, accelerated the competition will stimulate high-performance product localization.