| The national development and reform commission specific provision in" Eleventh Five-Year Plan" ten major energy conservation project implementation opinion. Motor system energy saving is one of the ten major energy conservation project, pointed out that the promotion frequency control of motor speed, permanent magnet motor speed control, and other advanced technology, improve fan and pump motor system adjustment methods. The current China motor system average efficiency than the advanced international level low10-15%, its energy-efficiency level is low20%, in our country’s industry shows that there are large motor system in the power saving potential.In the motor drive system in the industry, fan and pump the design of the system are working at maximum design. When used in the operation of disc, valve and adjust output flow, make fan and pump in a big pressure small flow state, have a lot of river closure loss, the amount of electricity consumption to pressure on top, wasted a lot of electricity. When the high voltage inverter and high motivation with combination of ac motor speed, gate valves open and there will be the largest, through the rotation speed adjust flow, eliminate closure loss. In the industrial system high voltage motor powered mechanical general is the biggest power within the enterprise application equipment, the heavy high-voltage inverter will achieve high voltage motor speed operation of heavy, From the gate, valve and backward system adjustment method to variable frequency speed regulation system way, will be able to save a large number of electric power.This paper expounds the heavy high-voltage inverter of the developing a technology, that is the internal variable flow unit of development Project named heavy high-voltage converter variable current unit, Heavy high-voltage converter variable current unit of power electronic design development belongs to the high-end category, the design requirements of the complex environment, Technology intensive, the production and the difficulty of the experiment. It is set high pressure&strong cooling&Strong electromagnetic environment comprehensive high technology products. In the research and development process, the specific situation fully combine units, in full operation and analysis of the premise, design the structure of virtual and models. And use of the existing technical conditions and tools to make initial sample testing technology parameters, and in the light of the parameters of the test again to improve Creatively developed variable current unit structured framework. In the cooling and assembly has great advantages, and from the technology and production of two aspects to speed up the development speed, to achieve high quality and highly efficient complete development goals. |
