At the 2009 PV&LED Technology and Cooperation Forum held on October 14th, the guests of the conference made a lot of remarks and discussed the cutting-edge technologies and development prospects of photovoltaic industry, wind and solar hybrid power generation, photovoltaic power generation and solar LED. The audience’s wonderful speeches and the wonderful speeches of the experts won the applause of the audience from time to time.
The impact of the financial crisis on the photovoltaic industry
The participating experts and enterprises agreed that the domestic PV industry has gradually got rid of the impact of the financial crisis. Although China's photovoltaic industry has gradually become balanced, coordinated and healthy development, and has become the world's largest producer of solar cells, but in the future, the domestic photovoltaic industry needs to focus on the performance of the domestic market. The implementation of the "On-grid Electricity Price Law" for photovoltaic power generation, starting China's domestic PV market is the most important measure to avoid the impact of the financial crisis and ensure the sustainable and healthy development of the photovoltaic industry.
Wind and solar hybrid power supply system is of great significance
The application and practical effect of wind-solar complementary power supply system on LED street light analyzes the configuration problem of complementary power generation in LED road lighting from the perspective of engineering application, and discusses how the wind-solar hybrid power generation system for LED road lighting is designed more reasonable in the future. It is of great significance to propose a method for finding an accurate, convenient and effective configuration of a road wind and solar hybrid power supply system.
Director of the Institute of Electronics and Optoelectronics, Institute of Electronics and Optoelectronics, Taiwan Institute of Technology
Destar Optoelectronics Technician introduces solar LED street light technology
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Off-grid solar lighting system has clear prospects
Manager Wang Hongbo of Philips Lighting China analyzed the characteristics of the pyramid market and the characteristics of the corresponding off-grid solar lighting system. In response to the application needs of this particular market, the key points of design in the lighting system were analyzed and several different lighting schemes were compared. An off-grid solar lighting system based on high-efficiency cold white LEDs is proposed as a good solution for this market.
Medium and long-term photovoltaic power generation gradually becomes the main body of energy
In the past few years, technological progress, market expansion, and scale effects have promoted the rapid development of the global photovoltaic industry. At present, due to cost reasons, photovoltaic power generation cannot compete with traditional water, fire and nuclear power generation. However, in the next few years, the cost of photovoltaic power generation is expected to decrease, even to 1 yuan / kWh, which is equivalent to the price of thermal power. Considering the comprehensive factors such as environmental pollution and coal price increase, it is foreseeable that once the economy and conventional energy Compared with its advantages, photovoltaic power generation will achieve epoch-making development and is expected to gradually become the theme of energy in the next few years.
USB3.0 provides a standard interface for all kinds of devices that are connected to PCS or audio/high-frequency devices.The theoretical transmission speed is up to 5Gbps. HUB is commonly known as a hub, which is used to connect multiple computers or network devices in a network using a star topology. The USB 3.0 Hubs is an upgrade of the USB 2.0 Hubs. The transmission rate of the USB2.0 is 480Mbps, and the transmission rate of the USB3.0 is 5Gbps. The maximum transmission speed is 10 times that of the USB2.0, and the transmission speed is faster.
The USB 3.0 hub provides a quick and easy way to connect all the peripherals you use on your desktop. You can connect 2 external monitors, gigabit Ethernet ports, headphones/speakers, USB printers and scanners, keyboards, mice and other peripherals with a single USB 3.0 cable to your computer for up to 5Gbit/s external storage access (10 times faster than USB 2.0). USB HUBS can do split, but not evenly. If, as the subject says, you only have two devices, and the two devices are transmitting at the same time and taking up as much bandwidth as possible, then you end up with two devices each taking up 50% of the bandwidth. Due to the fast theoretical speed of USB3.0, even if divided into four parts, the theoretical bandwidth of each port is still as high as 1Gbps, and the number of converted bytes is close to 100MB/s, which is still a very high bandwidth.
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