July 29, 2013 : Australia's Clean Energy Expo (Clean Energy Week) on the 26th of this month in Brisbane closing , as the Australian Association of clean energy , solid Dulwich grand attended the exhibition and display products related to new technologies .

        Affected by the decline in government subsidies , the current overall downward trend in demand for the Australian market , but there are still a lot of customers come to negotiate solid Dulwich booth , new and old customers , distributors have confirmed the size of the solid Dulwich recent performance in the Australian market , especially in solar inverters product quality, service and marketing aspects .

Solid Dulwich Australia District official said : " The show solid Dulwich deepened understanding of communication with customers , clients Dulwich solid brand recognition so that we are very pleased and encouraged by the solid second half believe Dulwich in Australia the market will usher in a new round of growth spurt . "

 It is reported , Clean Energy Week is Australia's largest integrated renewable energy exhibition , ATRAA contains Australia 's most professional photovoltaic exhibition, participate in customer focus and quality are very high.

 Solid Dulwich is a new energy , a fast growing high-tech enterprise , has been focusing on solar PV wind inverter R & D, production and sales. The company has developed the production of single-phase single SS , DS single-phase dual , DT Dual -phase , DI high frequency isolation , ES bidirectional energy storage , JP Japanese models , MT centralized PV inverter seven series products power coverage 1.5kW to 500kW.

Full range of PV inverter products the highest conversion efficiency 98.8%, MPP tracking efficiency of more than 99.5 % of the total current harmonic distortion (THDi) control less than 1% , has reached world -class level. Complete monitoring product line and wireless and Internet monitoring program to meet the diverse needs of different customers .

        Solid Dulwich GW4000-SS inverter PHOTON passed the stringent test , won the " double A" evaluation , ranking first ,1.5-5kW 4kW three , was evaluated as "More than respectable ( beyond respected ) ." Full range of products through the CGC, CEI0-21, VDE, TUV, CE, G83, G59, SAA certification, and Australia CEC, Western Power and the Government of Denmark column name.

 Since the first fault current of the inverter average time is about 5 years, so the PV inverter PV system to become the main cause of many failures. Designed to enhance the reliability of the inverter, consider the following factors and take appropriate measures, including: low-loss power devices and switching circuits, updated packaging technology, an alternative to electrolytic capacitors, over the design, as well as common device redundancy reasons, such as failure modes and in-depth analysis.

Other challenges photovoltaic inverter reliability design include: electrolytic capacitor with low reliability and reasonable prices to find different types of high-voltage, large-capacity capacitor technical difficulty; lack of a structured approach to product planning and manufacturing quality control immature Technology will also damage the reliability; addition, work in harsh environments (very low or very high temperatures, moisture and sunlight) also brought challenges to the reliability of the design.

Electrolytic capacitor aspects of the problem, Infineon's senior JeromeLee proposal by reducing the electrolytic capacitor ripple current to prolong the life of the inverter. When the high-frequency operation and high efficiency target switch conflict, need to consider the capacitor bank is too big or appear multiphase systems. In addition to the problem of aging electrolytic capacitors, voltage ratings decline, and he thinks the cooling effect is also a major factor affecting the reliability of PV inverters, most cost-performance optimization is to use the 600V power level of the device. At this point can be used as the input stage to reduce the voltage stress to 500V overvoltage protection system or by using the following step-down converter.

According to the reporter, Infineon has completed the PV micro-on grid inverter without electrolytic capacitor solutions, and in 2013 September 16 to September 27 in the country five cities (Wuhan, Nanjing, Beijing, Chongqing, Xi'an) Roving Seminar on the Power Management to be released, then, a team of experts will explain in detail Infineon efficient products in the switching power supply, lighting drivers, development and application of long-life photovoltaic inverter, high reliability motor drive and other areas . In addition, Infineon will launch the latest CoolMOSTM series, the fifth generation of SiC Schottky diodes, and other new generation of low voltage OptiMOSTM promote creative design applications was easy. It is understood that since Infineon Technologies power management products into China, its high performance, reliable quality, diverse solutions to get the trust of many customers.

Currently, Infineon Technologies power management product applications, involving switching power supply, V-core power, lighting, photovoltaic inverters, electric vehicles, energy storage, motor drives. Its family of products is huge, not only power devices (such as CoolMOS, OptiMOS, SiCDiode, SiCJFET, etc.), power control IC (eg PFCIC, LLCIC, QRFlyback, CoolSET, etc.), but also covers the lighting control IC (fluorescent lamp ballast controller ICB2FL series, LED ICL8002G drive controller, etc.) and digital control IC.

 " Great energy is well prepared to meet the challenges ." Great energy relevant responsible person said , " solar inverters need to have excellent overall performance superior quality , such as the conversion efficiency, environmental adaptability , voltage range, reliability, low cost , etc. etc. solar inverter has been more than just a single product , but rather an integrated solution .

This requires comprehensive technical accumulation, and this is where the advantages of the Great Wall of Energy . Great energy in the solar inverter industry , with independent R & D, production and sales , technical consulting, engineering, turnkey , engineering design, installation and technical services such as complete industrial chain. Cooperation with the United States since 2009 Satcon start , the Great Wall Satcon inverters have been exported to Europe, America , Asia and other countries or regions. In 2013 , the Great Wall Satcon inverters worldwide installed capacity broke through 3GW. "

It is understood that the Great Wall of Satcon inverters are used in outdoor enclosure design, all the built-in AC and DC power distribution cabinet, the whole system can be arranged directly outdoors without additional configuration DC cabinet, the device does not need to build another house . Other similar products require a device equipped rooms, an indoor inverter, a DC power distribution cabinet , and the Great Wall of Satcon inverters to achieve the integration is complete , relatively speaking, easy to install, simple , saving construction, civil engineering, 12% of the overall cost of the cost of HVAC , fire and so on. Meanwhile, the inverter unit covers an area of ​​reduced height reduction , not only the scope of the assembly formed shadowing reduced , but also increase the land utilization.

Full power conversion efficiency, environmental adaptability, good reliability, but also the Great Wall of Satcon inverters technical advantage. According to the Great Wall of energy introduced , Satcon was the second largest in North America 's largest utility-scale inverter manufacturer , has many patented technology. Currently the Great Wall has been fully received Satcon energy technology patents , proprietary technology, software , global certification qualification, production and development equipment and some technical backbone.

Wall Satcon micro grid tie inverter without light, load and other restrictions, regardless of high load or low-load , whether early in the evening , throughout the operation cycle can achieve high efficiency conversion. Unique patented technology MPPT maximum power

Rate point tracking technology and control strategies through advanced control strategies to achieve a longer generation time online each day , and by quickly and accurately solar array maximum power point tracking technology

Maximize convert electrical energy output array issued . Wide range of design margin, but also makes the reliability becomes higher. General requirements inverter power plant life is 20-25 years , a minimum of 20 years . Wall Satcon inverters directly from the design life of 25 years onwards

 According to the latest data released by IHS said, due to the commercial and utility-scale inverters rapid price decline in mature markets such as Germany and Italy, the huge cost pressure , in 2013 the global solar PV inverter market revenue will decline by 9%.

While the 2013 global PV inverter shipments will rise 7 percent , but now expects revenue inverter market will decline . Revenues will fall to $ 6.4 billion , while in 2012 amounted to $ 7.1 billion receivable . Prior to IHS forecasts 2013 revenues will decline inverter market by 5% in July .

According to IHS latest release of " tracking photovoltaic inverter market ," the report revealed that in 2013 the average price is expected to drop inverter $ 0.18 per watt , while the 2012 average price of $ 0.22 inverter per watt .

Because the total price of photovoltaic systems continued to decline , including inverter suppliers , including all aspects of the supply chain are under tremendous pressure to cut prices .

IHS PV market analyst Cormac Gilligan said in the past few years, compared inverter suppliers, PV module manufacturers have been exposed to greater price pressure. However, component prices have reached a turning point , and began to rise. This has been the inverter supplier had a great impact , price pressures have been transmitted to the inverter fields.

Today, inverter manufacturers must "digest" is no longer part of the component manufacturer price pressure . Further pressure is being hit, because the inverter manufacturers are forced to cut prices in order to win in the crowded market share. In addition , the PV market is entering a new phase , a number of countries have cut government subsidies or the removal of subsidies , which forced inverter manufacturers had to cut prices in order to make their products remain popular.

 According to the latest data released by IHS , due to the commercial and utility-scale inverters rapid price decline in mature markets such as Germany and Italy suffered enormous cost pressure , in 2013 the global solar PV inverter market revenue will decline by 9%.

As the leading inverters , SMA 's product quality is legendary. However, for the recent downturn in the photovoltaic market and client capital chain tension , the cost is obviously more important. A micro inverters do Insiders said SMA 's product quality is very good, but do continue to reduce the cost of this is not good .

IHS data released last month showed that in 2012 the average price was $ 0.22 solar inverters per watt inverter 2013 could fall to $ 0.18 average price per watt.

Because the total price of photovoltaic systems continued to decline , including inverter suppliers , including all aspects of the supply chain are under tremendous pressure to cut prices in order to win in the crowded market share. SMA on the market without making timely strategic adjustments , also cost the weight of breath.

These people also said that on the Chinese inverter DC TO AC market, cost and brand influence determines the competitiveness of enterprises , despite the fierce competition in the domestic inverter there is still much room for development.

On a 2012 Chinese inverter chart TOP10 brand market share , the reporter saw the sun power , TBEA , Emerson, Chint, Guanya , Corona , NARI , KSTAR , Samil Power , megavolt new energy and other 10 major inverter manufacturers occupy 73% of the domestic market share . But apart from the sun to sit tight in the top 27% of the power of the market , the rest of the production was not much market share each . Megavolt new energy as tenth in the country has a 3% market share. This is both brutal competition for SMA , it also challenges and opportunities.