Inverter promotes more efficient energy-efficient motors

“The Comprehensive Work Program for Energy Conservation and Emission Reduction in the 12th Five-Year Plan” proposes to consistently reduce the intensity of energy consumption, reasonably control the total energy consumption, promote the combination of technological progress, and greatly increase energy efficiency. With the launch of energy-saving and emission-reduction work, a group of related industrial energy-saving companies such as inverters and energy-saving motors will be the beneficiaries under the stimulation of relevant national policies. The annual electricity consumption of our country's motors exceeds 2 trillion kilowatt-hours, which accounts for about 60% of the country's electricity consumption. However, the market share of high-efficiency energy-saving motors is less than 3%, and the overall operating efficiency of motor systems is about 20% lower than in developed countries. If the newly-increased motor and drive system each adopts high-efficiency energy-saving products, the optimized design of the motor system can save hundreds of billions of kilowatt-hours of electricity annually and reduce hundreds of tons of carbon dioxide, which can effectively promote the development of energy-saving and environmental protection industries.

Motor energy-saving mainly depends on frequency conversion, so as to achieve the effect of improving motor efficiency and energy saving. The power saving rate of the motor system using the inverter is generally about 30%, and that of some high occasions can reach 40%-60%. Compared with the medium- and low-voltage inverter market, high-voltage inverter market concentration is higher, and the market share of domestic manufacturers is high, coupled with the "Twelfth Five-Year Plan" comprehensive energy-saving emission reduction work plan issued by the State Council, explicitly requested to accelerate the promotion The popularization and application of high-voltage frequency conversion speed regulation technology, so the future prospect of high-voltage frequency converter market is good, domestic manufacturers such as Hekang frequency conversion (300048) and so on are expected to make a big breakthrough.

In 2011, the market size of high-voltage inverters in China was about 5 billion yuan, accounting for only 6% of the potential market capacity. In the configuration of medium and high-voltage motors for domestic fans and pumps, the deployment rate of high-voltage inverters was less than 20%. With environmental protection issues becoming increasingly important and industrial As production requirements continue to increase, the demand for high-voltage inverter products will continue to increase, and the high-voltage inverter market will maintain 30% industry growth in the next three years.