"Eleventh Five-Year Plan" Energy Saving and Emission Reduction Strategy Promotes the Rise

The global "energy saving and emission reduction" industrial transformation plan is being implemented on a large scale, and the "energy saving and emission reduction" strategy formulated in China's "Eleventh Five-Year Plan" has also achieved important results. It is reported that the relevant departments of the Chinese government are actively seeking more high-quality energy-saving renovation programs to promote the development of "energy-saving and emission reduction" work across China. The in-depth implementation of the “energy-saving and emission-reduction” strategy is also gradually changing some of China’s domestic industrial patterns. Weikai CEO Chen Jianyi told the media at the China (Shanghai) e-commerce Innovation and Development Forum recently held that China's energy-saving and emission reduction strategy is a rare historic opportunity for the rise of the frequency converter industry, and the amount of international trade developed through e-commerce platforms is also It has increased dramatically year by year. It is reported that the headquarters of Welke China has already established cooperation with buyers from neighboring countries in China and actively participated in the “energy saving and emission reduction” projects in developing countries.

Low-energy, low-pollution and low-carbon economy will be the only way for China's future development. Today, China is firmly promoting the low-carbon economy and related policies have been intensively introduced. Electric motors are the most important power equipments. They convert electrical energy into mechanical energy. Motors are used as the driving power source. Most of the motors are the phenomenon of large horse-drawn cars. The electricity consumed by them occupies 60% of the total electricity generated in the country. the above. Therefore, the state plans to ban the sale of non-efficient small and medium-sized motors after July 2011, but the penetration rate of high-efficiency motor market is only about 3%.

Under the premise that the motor was started more than a decade ago, the direct start, auto-coupling and star-delta starter were generally used to start the inverter. Then there was a single-chip microcomputer as the core semiconductor thyristor as the actuator intelligent motor soft starter. The soft starter mainly solves the impact on the power grid when the motor starts. Bypassing the contactor works after starting, there is no energy saving effect. With the popularity of the product, the price of soft starters has dropped from 150 yuan per kilowatt to about 50 yuan per kilowatt, and the market is gradually shrinking. Chen Jianyi pointed out that because the soft starter is straight up, the autotransformer and the star delta starter to the frequency conversion governor transition products, in addition to the motor working load in more than 90% working conditions, other conditions using soft start mode can use the frequency conversion Device, because the inverter energy-saving about 30%. As domestic inverter technology matures and costs decrease, the localization of inverters is rapidly advancing. The price of inverters has dropped from around 1,000 yuan per kilowatt at the early stage to only 200 yuan (high power) per kilowatt, and the price has dropped significantly. In addition, due to the maturation of domestic motor frequency conversion speed regulating products, the energy conservation effect has gradually been fully recognized by the market. The industrial enterprises' enthusiasm for investment in electric motors has been increasingly improved, and the implementation of the target responsibility system for energy conservation and consumption reduction has driven the rapid development of motor frequency conversion and speed regulation industries. development of.

Industry insiders believe that industrial companies need to work hard on energy conservation in order to adapt to the green policies of the Chinese government. The rapid development of the inverter industry in China will be inevitable. Therefore, after using the inverter, the investment cost of the inverter can be recovered in a year or so. Inverters have unique characteristics in terms of energy saving. From the perspective of demand, inverters are gradually becoming more diversified. The emergence of general-purpose and special-purpose products is dividing this market cake. Special-purpose inverters are mainly used in injection molding machines. Ball mills, air compressors, central air conditioners, hoists, elevators, wire drawing machines, textile machines, industrial washing machines, etc. The applications of these products are all designed to meet the needs of all users.

However, the application of frequency inverters varies with equipment operating conditions. Chen Jianyi said that relative to end users, the relationship between the service value of the inverter and the value of the product is not necessarily the same or even very different. For example, in a mature industrial application, the general standard drive can basically meet the user's requirements. In addition, if the user is experienced, the frequency converter's service cost may be only 20% or even lower. However, under conditions of complex operating conditions, high degree of computer control, and implementation of motor man-machine interfaces, frequency conversion devices usually use field bus systems such as PROFIBUS and DeviceNet. At this time, the cost of services that the user spends on inverter system design, integration, etc. will be greatly increased. More than the value of the product itself, it can even reach 5 to 8 times, for example, in the paper production line, metallurgy and other industries.

When talking about the prospect of national policies, Chen Jianyi stated that 2010 was the year of the "Eleventh Five-Year Plan". In the past four years, China's energy-saving and emission-reduction work, especially emission reduction work, has made great progress. The cumulative decrease in consumption was 14.38%. However, from an energy conservation perspective, last year China's energy consumption per unit of GDP was only reduced by 2.2%, which was less than the average speed of the previous three years. There is still a large gap between the target of the 20% reduction in GDP energy consumption during the “11th Five-Year Plan” period. To this end, the country has intensified efforts to implement energy conservation and emission reduction this year. The central government has held meetings and issued documents several times, emphasizing the elimination of backward production capacity, strict control of excessively high energy consumption and high emission industries, and accelerating the key projects of energy saving and emission reduction. Public statistics show that in 2009 the central government also invested 58 billion yuan to support key energy-saving emission reduction projects, the total amount determined this year increased by 43.6% over last year.

Chen Jianyi also revealed that in order to meet the needs of the country's energy-saving emission reduction, Wilke seized this golden opportunity to accelerate the development of high-voltage inverters, and the testing of high-voltage inverter indicators is basically near the end. In the near future, the wind energy grid-connected devices and solar grid-connected devices that Welkey ​​is developing will also be put into the application fields of the new energy industry. Chen Jianyi said that with the promotion of energy conservation policies, the inverter industry will usher in a new round of development.

Chen Jianyi stated that “the next decade will be the high-speed growth period of the inverter industry in China. Market demand will drive the emergence of new technologies and new inventions in the frequency domain. Welch is expected to use China's emerging markets to increase its influence in the global arena.”