LED will compete with traditional lighting in the next decade

In the 9th annual global optoelectronics market summary and forecast, OIDA announced its latest market data: In 2006, the optoelectronics market reached a record high, with optoelectronic products and components reaching US$565 billion, an increase of 14.5% over 2005 (US$494 billion). . It is expected that the optoelectronics and components market will grow strongly and steadily at a compound annual growth rate of 7.7% (2007-2017) in the next decade, and its revenue will exceed 1.2 trillion by 2017. As the biggest driver in this market, LCD screens will appear in a variety of customer-based products, from TVs to mobile phones to digital assistants. In optoelectronics, solar, computing/processing and consumer display/TV are the mainstays with a compound annual growth rate of 17.3%, 5.6% and 6.3%. It is expected that the total revenue of these three markets will reach 425 billion by 2017. Dollar. In 2006, these markets generated $18 billion in revenue.

Affected by white light (HB) LEDs, the LED market will exceed $14 billion in 2017, and semiconductor lighting, automotive and signal/display will be the driving force behind this market. By 2017, semiconductor lighting devices will have a market share of more than 30% in the lighting market, competing with incandescent and fluorescent lamps. In the next decade, the semiconductor lighting market with HB LED as the mainstream will exceed 60 billion US dollars, and OLED will penetrate into this market at a slow speed due to the high cost structure.

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Micro Inverter

Micro inverter is a small inverter used in solar power generation systems, its main function is to convert the direct current generated by a single Solar Panel into alternating current. Unlike traditional centralized inverters, microinverters are usually equipped with one per solar panel, that is, each solar panel has an independent microinverter.

Main effect:

1. Individual control: The microinverter provides independent conversion control for each solar panel, which means that each solar panel can optimize its power output individually. This maximizes the power generation efficiency of the solar panels since shading or other influences only affect the power generation efficiency of individual panels, not the entire array.

2. Reliability: Since each solar panel is equipped with a micro-inverter, even if one of the inverters fails, the other panels can still work normally, thereby improving the reliability of the entire system.

3. Flexible installation: Micro-inverters are usually small and can be installed near solar panels without being concentrated in one location, so installation is more flexible and convenient.

Differences from other inverters:

1. Individual control: Compared with traditional centralized inverters, microinverters provide independent conversion control for each solar panel, enabling each panel to reach its maximum power output.

2. Fault isolation: The micro-inverter has the function of fault isolation. Even if one of the inverters fails, other panels can continue to work without affecting the operation of the entire system.

3. Installation method: The micro-inverter can be flexibly installed near the solar panel, and does not need to be concentrated in one location, so the installation is more flexible and convenient.

4. Applicable scale: micro-inverters are usually used in small-scale solar power generation systems, while traditional centralized inverters are suitable for larger-scale photovoltaic power plants.

Overall, the main role of microinverters is to individually control and optimize the power generation efficiency of solar panels and improve the reliability of the system. Compared with traditional centralized inverters, it has some advantages in terms of flexibility, fault isolation and applicable scale.

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