Weak current College】 【my application frequency sine wave technology maturing --- Power By】 【China power house network.

<br> As gree, midea, traditional fixed-frequency magnates to sine wave technology strong intervention frequency market, 180 degrees sine wave technology has become the focus of attention. So, what exactly is a sine wave technology? this technology and what are the .special benefits? it is understood that the 180 degrees sine wave technology is mainly used for driving inverter compressor motor control technology, mainly in relation to 120 degrees, for the purposes of the square wave technology. According to a new Bureau Chief inverter air conditioner and .development experts, sine wave and square wave technology of maximum difference, sine wave as three-phase power, and the square wave is two common power, which would allow DC inverter compressor to run more stable, low noise and vibration of small, energy- .efficient. As a new technology, 180 degrees sine wave is mainly used for DC inverter compressor with optimal match for inverter air conditioner movement efficiency, control, performance, etc. Compared with square, sine wave technology in output efficiency, vibration, noise, load .capacity, adaptability, etc., the compressor has substantially improved. But the complexity of technology, especially with complete matching of difficult, requiring a long application and running-in period. The new inverter air conditioner chief research experts, on the whole, the .sine wave technology differentiators in four areas: first, through reduction of noise control algorithm, can effectively reduce running noise. Second, the use of torque compensation, enhance low-frequency operation smoothness. Third, current-loop control to improve press demagnetization, prolong .service life of the compressor. Fourth, through magnetic control press operation range and improve system reliability. It can be said that with the advent of sine wave technology and large commercial applications, the AC frequency variable, square-wave technology constitute a powerful impact. .It is understood that, from 2005 onwards, the new air conditioning is in frequency in research and development of new products took the lead with 180 degrees sine wave technology, and the opportunity to upgrade to the product line, from the AC frequency full production of .steering DC inverter. At the same time, in the overseas market competition, the new branch will sine wave technology as a product, from overseas customers actively recommended. And its all air-condition full application of the sine wave technology, product line covering all .areas of high school at the low end. New section on the European and American markets of new refrigerant DC inverter, multi-split DC inverter etc, sine wave technology played a stable and excellent performance. By overseas customers. For the first time this year ., China exported to the United States market inverter air conditioner products, the new section on the use of a sine wave technology, product performance and stability, without any failure. The domestic market, sine wave technology in the application of the conversion products, for .the last two years before starting to emerge and spread rapidly. In 2006, a new branch, Hisense launches new sine wave DC inverter. In 2007, gree, Haier brand was launched a sine wave inverter products. This year, beautiful and strong through sine .wave DC inverter frequency new scrap into the market. The entire domestic inverter air conditioner market trend of sine waves. Sine wave technology of universal application, on the market and consumers buy more stable performance, prices more attractive inverter air conditioner provides a strong support. .Best of all, the sine wave technology, domestic air-conditioning enterprise has come to the forefront of the foreign capital enterprise. Many foreign companies are currently in the inverter air conditioner on selling point mainly concentrated in the new refrigerant, DC technology, and for .the application of the sine wave technology has not set foot in Basic. In this year's Italy Milan exhibition, the number of foreign-funded enterprises before the formal launch of the application of the sine wave DC inverter technology and new products. It can be said .that sine wave technology development mainly benefit from domestic enterprises in DC inverter machine promotion and development, eventually becoming the business breakthrough foreign-funded enterprises in inverter technology breakthrough on maximum. As more and more domestic enterprise punch frequency market, accompanied by these enterprises by the .sine wave technology expands comprehensive breakthrough, this application will be more mature and sophisticated development. But at this stage, many enterprises in the sine wave technology-inputs on the bandwagon, the short term will still be facing enterprises in sine wave technology and machine product .compatibility, stability, etc. After all, for the use control compressor speed precise algorithms and programs, there are a lot of instability. Not simply purchase frequency module components can resolve, the most critical is the need to control module and complete product to systematically .optimize and matching in order to play their best power and standards. Industry experts pointed out that, at this stage, for businesses, not simply by the sine wave technology concepts and slogan to packing and Ascension enterprises and products in the frequency domain status, but .to truly to market has matured sine wave frequency stability of products..