The reporter learned from the Science and Technology Department of Guangdong Province that after six years of technical research by Chinese scientists and technicians, the "Low-voltage Motor Automatic Phase Control Power Saving Technology" recently passed the expert group identification led by Li Bohu, an academician of the Chinese Academy of Engineering, in Beijing. Significant and has broad application prospects.
At present, there are about 1 billion motors in operation in China, which consume 60% of the total load of the power grid and 70% of the total industrial power. Due to the bottleneck of energy shortage, about 60% of the motors in China are currently operating at a load below 60% of the rated load, resulting in up to 30% of the electricity being wasted. Research and development of low-voltage motor energy-saving technologies in the absence of electricity is the focus of China's current promotion of energy-saving society.
"Low-voltage motor automatic phase-control and power-saving technology" is jointly established by Guangdong Heshan Doppler High-tech Power Saving Co., Ltd., the Institute of Electrical Engineering of the Institute of Science and Technology, and the Electrical Engineering Department of Tsinghua University, and has been engaged in the research and development of the industry-university-research cooperation model for 6 years. And finished. Wang Xiangyu, a professor of electrical engineering at Tsinghua University, said that the principle of the technology is to improve the external operating environment of the motor to achieve dynamic power management and achieve frequency conversion power saving. In the specific operation, it is to install high-performance digital processing circuit and exclusive development in the motor. The automatic phase control chip technology equipment automatically detects the external voltage signal and the power factor signal fed back by the motor for conversion processing, so that the motor can achieve optimal operation under low pressure.
At present, the motor power-saving products have obtained three utility model patents and invention patents, and passed the inspection of the State Administration of Quality and Technical Supervision. Tests show that the average power saving rate of the product is 15%-55%, and the service life of the motor is extended. At present, the technology products have been mass-produced by Guangdong Heshan Doppler High-tech Power Saving Co., Ltd., and have been put into the market in Foshan, Nanhai, Shenzhen and other places, and have been well received.
The expert appraisal team headed by Li Bohu, an academician of the Chinese Academy of Engineering and a researcher of China Aerospace Science and Industry Group, agreed that the result is a fully automatic motor power-saving product with independent intellectual property rights, which can be widely used in clothing, ceramics, furniture, hardware, electrical appliances, Injection molding, automotive and other industries and fields.

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