Zhou Mingliang: The revolution of home power supply system
[Source: Gaogong LED 's " LED Good Products" magazine May issue ] Nowadays, LED lighting is more and more prominent than traditional lighting sources. LED semiconductor light source is also the best light source developed by humans so far. A subversive revolution. To truly realize the advantages of LED energy-saving, we must not only consider the light efficiency of the LED light source itself, but also consider the resources consumed by the LED lighting products throughout their life cycle and in the entire upstream and downstream supply chain of the lighting industry.
More importantly, we must dare to break through the mindset of the previous single industry or industry development, and use the big system and the big leap of thinking mode to explore higher energy efficiency and intelligence in the context of seeking the transformation of the overall electricity consumption. Innovation and change in lighting systems and electricity consumption that meet individual needs.
Since the LED light source is a DC-driven light source, the "direct supply system" is more suitable for LED lighting products to achieve higher energy efficiency from reducing power conversion losses, improving power utilization, and simplifying drive design considerations. Therefore, it can be boldly predicted that the next revolution in the power electronics industry is likely to be the transformation of the AC power supply system that we have been using for more than 100 years to the DC power supply system.
Since the invention of semiconductors in the 1940s and 1950s, semiconductor power electronics technology has developed rapidly in Moore's Law, which has brought people an extremely rich range of electronic and electrical products, greatly improving people's quality of life.
Nowadays, we look around our daily home life and office, entertainment and other electronic and electrical products (except incandescent lamps, fluorescent lamps and very few AC motors and electrical products). The internal power supply is DC, and with LED lighting and motor frequency conversion The rapid promotion and application of energy-saving technologies, the exchange of direct access to electrical and electronic products will fade out of the market. At the moment when energy conservation and emission reduction requirements are becoming more and more urgent, the “home AC power supply system†faces challenges.
First, there are challenges in maximizing the use of electrical energy. On the one hand, due to the non-pure resistive load characteristics of most electronic and electrical products, the AC power supply system has inconsistent voltage and current phases, resulting in the actual power (apparent power) provided by the grid is greater than the useful power of the real work, that is, part of the power is Doing useless work, the grid energy utilization is low. On the other hand, there are numerous low-power AC/DC rectifier converters in the power supply system, resulting in inefficient AC/DC conversion losses, which further reduce the power utilization.
Unfinished , please refer to the May issue of Gaogong LED 's " LED Good Products" magazine.
More importantly, we must dare to break through the mindset of the previous single industry or industry development, and use the big system and the big leap of thinking mode to explore higher energy efficiency and intelligence in the context of seeking the transformation of the overall electricity consumption. Innovation and change in lighting systems and electricity consumption that meet individual needs.
Since the LED light source is a DC-driven light source, the "direct supply system" is more suitable for LED lighting products to achieve higher energy efficiency from reducing power conversion losses, improving power utilization, and simplifying drive design considerations. Therefore, it can be boldly predicted that the next revolution in the power electronics industry is likely to be the transformation of the AC power supply system that we have been using for more than 100 years to the DC power supply system.
Since the invention of semiconductors in the 1940s and 1950s, semiconductor power electronics technology has developed rapidly in Moore's Law, which has brought people an extremely rich range of electronic and electrical products, greatly improving people's quality of life.
Nowadays, we look around our daily home life and office, entertainment and other electronic and electrical products (except incandescent lamps, fluorescent lamps and very few AC motors and electrical products). The internal power supply is DC, and with LED lighting and motor frequency conversion The rapid promotion and application of energy-saving technologies, the exchange of direct access to electrical and electronic products will fade out of the market. At the moment when energy conservation and emission reduction requirements are becoming more and more urgent, the “home AC power supply system†faces challenges.
First, there are challenges in maximizing the use of electrical energy. On the one hand, due to the non-pure resistive load characteristics of most electronic and electrical products, the AC power supply system has inconsistent voltage and current phases, resulting in the actual power (apparent power) provided by the grid is greater than the useful power of the real work, that is, part of the power is Doing useless work, the grid energy utilization is low. On the other hand, there are numerous low-power AC/DC rectifier converters in the power supply system, resulting in inefficient AC/DC conversion losses, which further reduce the power utilization.
Unfinished , please refer to the May issue of Gaogong LED 's " LED Good Products" magazine.
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