Shandong developed a motor speed control system with a power saving rate of more than 5%
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The appraisal team composed of experts from the Chinese Academy of Engineering Yao Fusheng and Tsinghua University professor Li Fahai believes that its "technical performance has reached the international advanced level", it is recommended to further optimize the design, reduce costs, increase promotion efforts, and form a market scale as soon as possible.
Electric motor is the most important power consumption equipment. In China, only small and medium-sized electric motors consume more than 60% of the national power generation. At present, the mainstream of the market is the variable frequency speed control technology with large power consumption. In recent years, the United States, Canada and other countries competed to develop a new technology of switch-type reluctance motor with good energy-saving effect, and it has been successfully applied to household appliances such as washing machines and vacuum cleaners. As a hot topic in the field of contemporary electric transmission, many research units in China have been working on switching reluctance motor technology since the 1980s, but they have been slow.
After more than three years of hard work, Shandong Kehui Electric Co., Ltd., Shandong University of Technology and other units have jointly developed this new type of motor speed control system - switch type reluctance motor speed control system, in Shandong Xinhua Pharmaceutical Co., Ltd., Zibo Thermal Power The joint-stock company and other units have successfully applied and passed the comprehensive performance test of the National Small and Medium-sized Motor Quality Supervision and Inspection Center. It was listed as the energy-saving product recommended by China Development and Reform Commission during the “Eleventh Five-Year Plan†period.
The new motor speed control system consists of a switch-type reluctance motor and a microcomputer intelligent controller. The appraisal experts believe that this product with independent intellectual property rights has a good application effect in air compressors, plastic machinery, fans, pumps and other speed control occasions, and has already had mass production conditions.