And Network Speed To Enhance Energy Efficiency Photovoltaic Inverter
With the global economic recovery, particularly in the construction of smart grid
in 2009 was put on the agenda after the world has greatly promoted the new energy and power generation development. Solar PV market vitality so again last year, significant growth since the second half, not only solar cells, raw materials, manufacturers get more orders, solar photovoltaic power generation systems, device-related vendors are facing rapid growth opportunities.
Inverter with the major market share accounted for
Inverter for photovoltaic systems in one of the most important components, its role is to photovoltaic cells convert the variable DC output AC clean, so that PV is able to offer commercial power grid or local network.
PV power system market growth has inverter, the controller supplier, such as Hefei Sunlight Power, and power devices Mosfet, IGBT's major suppliers such as Infineon, Fairchild, Semikron and other semiconductor companies benefit directly. Fairchild HVPCIA department of industrial power systems marketing manager, Chung Sang-min of the PV market prospects are very promising, in his view, although the PV inverter market in 2009 shrunk by 25%, but expects the global solar inverter market 2010 to 2013 back to life, to reach 4.1 billion over the scale. Accordingly, the 2010 photovoltaic inverter 2013 shipment expected to grow 20% annually.
According to the different scenarios, photovoltaic power generation system can be divided into separate grid photovoltaic systems and two types of PV systems. Independent PV systems in remote villages in the area including the power supply system, solar home power systems, communications signal power, cathodic protection, solar street lamps, etc. with a battery that can run independently of the photovoltaic power generation system. Grid PV power system refers to the power grid and grid connected photovoltaic power generation system. Hefei Sunlight Power Supply Co., Ltd. General Manager Cao Renxian told reporters that China's current solar PV use, mainly in the west and a large network of ground station, the eastern and western regions PV building independent power plants and communications base stations. "Future large-scale application of photovoltaic power generation is certainly the main grid, off-grid as a supplement." He said.
Chung Sang-Min invoke IMS for the inverter market research data also show that grid products will continue to occupy the major market share, despite the PV inverter for grid independent PV growth rate slightly lower than the inverter, but can be seen Its market size is much larger than an independent photovoltaic inverter. Semikron (Hong Kong) Limited Technical Marketing Manager Wang also believes that the future of photovoltaic power generation market will be dominated grid PV systems.
Technology development to improve energy efficiency
Technical terms from the system, photovoltaic power generation and network conditions are ripe, the inverter technology to meet the needs of PV systems and networks, the question now is how to further improve energy conversion efficiency.
Cao Renxian said photovoltaic simpler than wind power because of the characteristics of photovoltaic power generation is essentially predictable and relatively stable, now is not technically difficult, critical or network access is difficult. "Smart grid for large-scale construction will undoubtedly create the conditions for acceptance of renewable energy sources, many of our products now have a number of grid scheduling capabilities needed," he said, their company's products have been in many PV projects has been adopted "At present our photovoltaic inverters have been able to meet the domestic demand for most occasions, especially in western China to adapt to harsh environments and adaptation to the national grid, we have done a lot of work and made a very good results. Dunhuang concession tender to the Shanghai World Expo, our high-power inverters have been applied. "
Infineon Technologies (China) Co., Ltd. home appliances and industrial power device market manager for Chen Ziying, said solar energy grid through the inverter, so the inverter is the key to stable and reliable work, while improving the high-power solar power system energy efficiency, the inverter is also an important part, it is to ensure that solar energy conversion efficiency and return on investment of the key factors, there are many domestic and foreign solar inverter manufacturer, the product has matured.
But he also said that the increase of single power inverter made on higher demand, and how we can improve the energy efficiency is a challenge.
"With the increase of single-power, solar inverter technology and devices subject to restrictions, the circuit is mainly single-phase inverter bridge, the important task of improving energy efficiency fell on power devices, and therefore its performance of the device itself and design to use is the key. a new generation of IGBT, IGBT modules, MOSFET, and the use of silicon carbide diodes, so that the efficiency of the benchmark is constantly being refreshed. "he said.
Currently, the domestic photovoltaic inverter in the required core power devices is lagging behind on the technology, no manufacturer can meet the needs of domestic manufacturers to system vendors more than they committed to providing a more optimized system products. "The basic power electronics and microelectronic devices are imported, not domestic offers, but not a need to do it themselves, inverter for domestic manufacturers, the key is to enhance the design capability." Cao Renxian said.
And Network Speed To Enhance Energy Efficiency Photovoltaic Inverter
By: zzj89@foxmail.com
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