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显示标签为“dc ac inverter”的博文。显示所有博文

2013年6月20日星期四

Optimistic forecasts of useful minerals recoverable reserves, has been proved to be correct


Tight sandstone layer in the gas, shale gas and coal-bed methane distribution is very common and will become the world's energy system the composition of the components.

Due to shale gas activity, the gas price is still in low level.

In future, tight sandstone layer in the gas, shale gas and coal-bed methane may account for 40% of the world's total gas.

A moderate amount of flexible solar panels prices, will lead to expensive energy resources exploitation.

In 2012, 60% of the world natural gas market in eight countries, continue to expand in the market share of nearly 30 years themselves, but the emergence of unconventional oil and gas resources has changed the rules of the game.

When calculating the north American natural gas production under the premise of not proved to be correct, China will be included in the leadership of gas producers.

This makes the United States and China can more to reduce coal consumption and oil consumption.

Before 2030, natural gas will gradually replace oil as the world's most main primary fuel energy sources.

Urban strategic planning is formulated based on the urban comprehensive development and transportation electrification.

Modern urban residents prefer exquisite small cars, and hybrid cars and electric cars.

And when choosing them, aims to reduce pollution and carbon emissions.

In many developing countries, there will be more and more use of compressed natural gas vehicles, use of liquefied natural gas (LNG) truck also began to appear.

Peaked in 2035, after the use of liquid fuels light vehicle transportation will reduce gradually.

By 2060 years ago, the hydrogen in the transportation industry (mainly in the light vehicle at first, and then also in the truck), will be more than its use in industry.

2070 years ago, dc ac inverter products may be almost entirely replaced by hydrogen and electricity, and extrusion from light vehicle fuel market.

2013年5月15日星期三

Dc ac inverter market pattern "shock"

Pv inverter market recently blustery, on April 22, vibration  power inverter news from buying PowerOne ABB. 

People are guessing the electrical equipment giant and the marriage of the world's second largest pv inverter manufacturer will bring what changes to the photovoltaic industry.

And components market giants have to cut meat away different, dc ac inverter market do mergers and acquisitions frequently.

In early April, in Photon magazine is very grab an eye of inverter manufacturers in Germany REFUsol AdvancedEnergy acquisition by the United States, at the end of the industry, a SMA purchase domestic manufacturers megavolt love.

Each big manufacturer stride towards bigger and stronger, plus pv "leap forward" in the west of the in our country, some domestic companies said "below one hundred kw of small machines we don't do it".

Compared with the components, grid tie inverter technology innovation more slowly.

Especially large inverter (the utility - scaleinverter) (topology) the topology, control method of switching devices are about the same, but the stability of the product and the actual efficiency is need long-term engineering experience accumulation.

Do such a large project, on the other hand, also need to the localization of technical support, market development, government relations, financial support, the future struggle remains to be seen, but multinational giants have accounted for opportunities in several ways.

Photovoltaic (pv) inverters

FredeBlaabjerg professor this too inverter review article has reached nearly 1000 reference number, which is amazing in the field of power electronics.

2013年5月13日星期一

As a platform for innovation, tsinghua university


Chinese academy of sciences as the core development team, as a business platform, has introduced and trained 250 science and power inverter enterprises, with an annual output value of 1 billion yuan of above two; as a talent platform, we developed five national" one thousand project "and 16 provinces' one thousand project 'spots."

If tsinghua is the establishment of the Yangtze river delta research institute senior in hand, the introduction of a large number of research institute of Chinese academy of sciences is the creation of jiaxing, both leading and demonstration role has become increasingly strong --

Tsinghua institute is to explore the characteristics of "administration, production, study and research, gold, interface, with" grid tie inverter , the cracking of scientific research and market docking problem effectively.

Built in information technology, biotechnology and medicine, ecological environment, such as advanced manufacturing institute, datang telecom td-scdma test platform, application enzymology in zhejiang province key laboratory, water quality science and technology in zhejiang province key laboratory, wave information technology research center, the Yangtze river delta scientific instrument industry technology innovation strategic alliance, etc.

12 technology research center. Qinghua institute has undertaken 153 longitudinal technology projects, including 22 national projects.

Zhejiang institute of applied dc ac inverter of the Chinese characteristic is to form a network structure, the whole advancement.

Founded in 2004 in jiaxing applied technology research and transformation of the Chinese academy of sciences center established on the basis of research, first is to institute a cooperation of the national engineering research and development and transformation center platform type.

Gather the 17 research institute of Chinese academy of sciences, built here 20 engineering center, industrialization projects more than 100 years.