| In today’s world,energy shortages and environmental pollution are two major problems facing mankind.China ranks the highest in energy storage in the world,but due to the large population in our country,the per capital energy share is very low.In the case of total energy can not be changed,energy saving has become an important way to solve the energy crisis.In energy consumption,electricity consumption accounts for a large proportion.Asynchronous motors are the main consumers of electric energy.However,over-supply of energy and low energy conversion efficiency in practical application are generally presented,resulting in a great deal of energy wasted.If energy-saving control is adopted to improve the efficiency of the asynchronous motor,the amount of power-saving will be more impressive.The two most difficult problem are: how to respond to shock load in time;energy-saving in the motor drive devices of high load constant operation.These two technical problems in electrical energy-saving products are difficult to solve.In view of these,it is necessary to develop a smart motor controller applied for all low-voltage three-phase induction motors under any operating conditions,and set up the energy-saving experimental platform of the motor to test the energy-saving effect of the power saver,which is of great significance to the development of the key technology of motor energy conservation.The main contents of this article are as follows:1.This dissertation introduces the research background and significance of the subject;the current research status and existing shortages of the motor saver,including phase-controlled technology products and frequency conversion technology products;the research status and existing problems of motor energy-saving experimental platform at home and abroad.2.A deep study in the energy-saving principle of intelligent motor saver,a detailed analysis of the smart motor saver’s principle under high load and shock load are conducted.In addition,some experiments are adopted to testify the the principle of energy saving of smart motor energy.3.The program design and key technologies of smart motor saver are analyzed.In the simulation environment of MATLAB,pressure regulating and smart motor saver simulation analysis verify the correctness of the smart motor saver principle.4.The hardware and software design of the motor energy-saving experiment platform is conducted,and the motor energy-saving experiment platform is put up in the laboratory,which laid the foundation for the research and test of smart motor saver.5.Experiments and results analysis of smart motor saver is made on the motor energy-saving experimental platform to separately test the energy saver effect of the smart motor saver under the low load rate,moderate load rate and high load rate.By comparing theenergy consumption of the motor before and after,the energy-saving effect of the saver is summarized. |
