National Semiconductor Solar Bill Mazotti chip business unit director, said: "National Semiconductor particularly for the production of micro-inverter manufacturers provide a range of variety of different types of analog and mixed-signal chips, so that they can use to meet renewable energy certificates Standard high-performance chip development life cycle extremely long micro-inverter. National Semiconductor continues to expand solar system solutions for applications, the new series of chips that can support power optimizers, micro-inverters and inverters and so on. "

The series new SolarMagicIC chip is the industry's first meet photovoltaic renewable energy certification standards. Where each product is carefully designed to ensure that it can be very different on the roof contour cold harsh environment to work, and each chip have passed a rigorous stability testing to ensure that their performance is more reliable, thus meet the operational requirements of the solar system.

In addition, the chips extremely long life cycle, for up to 25 years life expectancy of PV modules. Built within the solar system SolarMagic chip can improve system generating capacity, reduce unit cost of power generation and ensure that junction box and the other sealing devices more secure. When used independently, the chips can be sure that micro grid tie inverter or power optimizer can provide high gate drive voltage and current.

MPPT controller: National Semiconductor offers two models were SM72441 and SM72442 programmable maximum power conversion tracking (MPPT) controller, allowing PV systems distributed power optimizers can add maximum power conversion tracking feature. Both chips have a variety of different functions, including voltage and current diagnostics, four built-in switch boost / buck converter control, overvoltage / overcurrent protection and I2C interface functions.

Gate drive: National Semiconductor's SM72295 full-bridge gate driver and SM72482 dual 5A compound gate driver can support power optimizers, micro-inverters and charge controllers within the power processing circuitry. In addition, both drivers can drive four full-bridge configuration using discrete MOSFET, while each product is built-in overcurrent detection of high-end amplifiers, these amplifiers have a higher current source / sink.

Regulators: National Semiconductor specifically for drive power optimizers, modified sine wave inverter and charge controllers for various bias supply system provides constant on-time SM72485 switching regulator, which is characterized by a high operating voltage 100V, and power conversion efficiency is very high. National Semiconductor also offers to reduce system power consumption SM72238 5V low dropout regulator.

April 26, 2011, the PV grid-connected inverter technology exchange was held in Nanjing Celebrity City Hotel. Meeting by Jiangsu Photovoltaic Industry Association, Samil Power Co., the sole sponsor. Meeting was attended by representatives of Suntech, ET Solar, Artes investment company, Central PV, Jiangsu Electric Power Design Institute, State Grid Electric Power Research, Samil Power Co., Ltd. and other 23 business leaders and professionals , as well as the photovoltaic industry relevant responsible person approximately 70 representatives. Meeting by Jiangsu Photovoltaic Industry Association Secretary-General Xu Ruilin presided, Jiangsu Photovoltaic Industry Association Honors General Wei Qidong, Samil Power Co., R & D manager Zhuangwu Guo, State Grid Electric Power Research Institute National Energy Solar Power R & D Center home Rongrong Jiangsu Provincial Electric Power Design Institute Director Hsu Wen-chao and Suntech Energy Engineering Technology Engineer Jinhu attended the meeting and made an important speech.

First by Xu General Assembly announced the "National Energy Board on the preparation of solar power" Twelfth Five Year Plan "of the notice." Then the development of photovoltaic industry, Japan's nuclear energy crisis on the impact of Chinese PV companies and opportunities, high-power PV inverters in the smart grid of the key technologies, photovoltaic power generation problems, photovoltaic technology, photovoltaic power system design for a General Assembly speech and communication.

At the meeting, the Secretary-General honors Wei Qidong, Jiangsu PV business development for their valuable suggestions and hope to keep up with technology companies to increase the pace of product. Also want companies to increase cohesion, in order to improve the domestic photovoltaic enterprises in Jiangsu and international markets core competitiveness.

Samil Power inverters of Zhuangjing Li on the localization of the main components of the core components technology, thin film capacitor stability and other key issues with the participants conducted in-depth exchanges and discussions.

Grid inverter grid-connected PV systems as the core of their research concern, it directly affects the operational performance of power systems secure, reliable and efficient operation. The convening of the meeting, the inverter http://www.gridtiepowerinverteronline.com/ technology to enhance and improve played a catalytic role, but also for inverter manufacturers and system integrators to conduct in-depth technical exchanges between offers the opportunity to further promote bilateral exchanges and cooperation, and promote the development of photovoltaic industry in Jiangsu Province.

November 18, 2010 The 11th China Solar PV Conference and Exhibition held in Nanjing. This is a large-scale, well-known brands gathered industry event, all of the solar energy field known enterprises attended.

In this event, Jingyi green energy company's booth attracted a large number of experts and scholars, customers and media attention, not only because of large scale booth, exhibits and more, and more importantly, Jingyi Green Products are the products of solar energy career has strategic significance.

Jingyi Green Vice President AESTHETIC reporter, booth show is 5KW, 30KW, 100KW, 250KW, 500KW five specifications of the solar grid tie inverter, inverter for photovoltaic system is an important part of the direct current generated by solar cells this device must be converted into alternating current. To the grid.

Past domestic inverter performance and yield is difficult to meet the demand, dependence on imports, making the photovoltaic power generation and network costs are very high, even though China has become the world's largest exporter of photovoltaic cells, but the Chinese solar power costs have been high, 98 % of photovoltaic cells exported abroad, domestic inverter PV can significantly reduce the cost and promote the popularization of clean energy. So it has strategic significance.

But reporters found that the show is not a domestic green energy an inverter, next door Hefei Sunlight company also demonstrated several inverter products, why we will pay particular attention to green energy do?

Huang told reporters that the first green energy product line rich, from 5 kilowatts to 500 kilowatts, scale solar power plants to meet the various needs, and secondly because green energy inverters http://www.gridtiepowerinverteronline.com/ obtained TUV and CE certification. It is understood that Green has been in Chuxiong inverter, Ningxia Sun Hill PV project has been applied, and last month, Jingyi green can become a national supplier of solar demonstration project, the next step is also preparing to enter the international market . Green can have confidence in the challenge of the market.

January 14, 2011 - Shanghai: IMS Research latest research report shows that PV inverter service plans and extended warranty worth several millions of dollars in this market in the years 2010-2014 will increase by over 480%, the inverter device vendors have created tremendous opportunities for growth.

According to the more than 200 pages of a report from IMS Research, in 2010, set of string inverters and multi-string inverter extended warranty and service plan, central inverter inverter hardware market share market share less than 10%. It is expected that in 2014 the market will grow substantially beyond hardware sales revenue growth. 2010 extended warranty services market, respectively, the highest penetration in the Czech Republic and Germany, mainly because these markets distributed photovoltaic power plant installed a high proportion, and commercial-scale installations using dc to ac converter topology structure. Such as the SMA Tripower, Kaco Powador and Sputnik of the SolarMax MT series products while providing three-phase grid connection and to adapt to larger system design flexibility. While those of the inverter type of installation is more favored by investors, and often need to extend the warranty period to reduce risk.

North American hit a 2010 central inverter service contract attach rates highest record, which was mainly due to Ontario and the United States large-scale, megawatt photovoltaic power plants higher proportion. In addition, such Xeikon (Satcon) and Advanced Energy Industries (Advanced Energy Industries) Company actively promote service plan, and strive in the competitive large centralized inverter marketplace. Predicted that the forecast period, the service contract attach rate will increase, in part to benefit from high-growth markets such as the U.S., China and India massive utility-scale installations, but also benefited from the attention for risk reduction and supplier for These high-margin service plans to actively promote.

Author of the report, IMS Research PV analyst Tom Haddon said: "With solar power as a viable source of utility-scale power generation is increasingly being used, service contracts are increasingly becoming customers in the selection of suppliers is important photovoltaic inverter determinants when just one hour of downtime investors will suffer a huge loss of income, the supplier's reputation and breadth of service contracts will be an important consideration. "

Like the inverter hardware market, SMA also occupied in 2010, serving more than 35% market share. The company in the service sector than the inverter hardware showing more favorable position, thanks to the company attaches great importance to the club SunnyPro and strong brand reputation.

Siemens Industrial Automation Group launched a grand for a new medium-sized photovoltaic power plants Sinvert PVS grid PV inverter series. Currently, the new series, which provides three-phase transformerless inverter products, the rated output power of up to 500,1000,1500,2000 KW, efficiency up to 98.4%. 2MW inverter output power is currently the highest on the market without transformer products. Siemens' new high efficiency inverter, making use of medium voltage grid ground or large roof-mounted photovoltaic power plant can get higher returns.

Siemens can also provide new Sinvert PVS contain compact central inverter and medium voltage devices and other ancillary equipment containerized electrical room. The inverter will be the first time in Shanghai SNEC exhibition booth Siemens Hall E4.350 published. More efficient than the previous generation has greatly improved, allowing customers to be able to run the entire cycle of PV systems to achieve higher returns. The main - not only from the technical devices to achieve higher availability and access to a longer service life. Further, since the wind inverter unit according to the intensity of solar radiation into and out, so that the efficiency of a separate system than higher.

Therefore, the efficiency of solar power is greatly optimized, especially in the case of low load operation: even at low solar radiation, the system can be started, and even in the low power range can achieve high conversion efficiency. Because inverter technology with intelligent master-slave control, always choose the shortest running time unit first put into use, the running time of the inverter unit all basically the same, so that greatly increased the plant's service life.

New Sinvert PVS inverter series can easily pass the standard communication interface, integrated in the SCADA system. modified sine wave inverter native integrated graphic display with touch function to ensure user-friendly operator interface and system performance in situ data visualization services. New device complies with the German Association of Energy and Industry Guidelines for the medium voltage system requirements, including low voltage ride through FRT (Fault Ride Through) and active control of all the requirements.

Siemens Industry Group is a leading global provider of green products, transportation, building and lighting technologies suppliers. Through integrated automation technologies and comprehensive industry-specific solutions, Siemens can greatly improve the industrial and infrastructure customers' productivity, efficiency and flexibility. Group consists of six divisions: Building Technologies, Drive Technologies, Industry Automation, Industry Solutions, transport and Osram. More than 207,000 employees worldwide Siemens Industry achieved in fiscal 2009 sector about 35 billion euros in sales.

Siemens Industry Automation Division in the global industrial automation systems, industrial controls and industrial software leading the field. Its portfolio ranges from standard products for the manufacturers of industrial enterprises to provide for the entire process of industrial solutions. Industrial sector contains the entire automobile production facilities and chemical plants. As a leading provider of software, industrial automation sector optimizes the manufacturer's entire value-added chain - from product design to product promotion, sales, and a range of maintenance services. More than 39,000 employees worldwide, Siemens Industry Automation Division has achieved in fiscal year 2009 sales of 7 billion euros.