2013年5月15日星期三

Hyundai Motor proposed South Korea's largest rooftop photovoltaic power stations


South Korean car manufacturer Hyundai Motor Company (Hyundai Motor Company) is planning to install the country's largest rooftop photovoltaic power plant in Asan, South Chungcheong Province, its manufacturer. Korea Electric Power Corporation (KEPCO) will buy the 10MW power station to generate electricity, and electricity is sold to nearby factories, including Asan.

Modern is planning to cooperate with thermal power generation company in Korea Midland Power installed approximately 40,000 grid connected inverter photovoltaic modules in Asan printing, welding, assembly and engine building roof, by the end of 2013.The plant covers an area of
​​over 213,000 m2, with the component is expected to cover 68% of the entire roof area.

Grid, the facility each year will produce a steady supply of up to 11.5 million KWh of electricity, enough to provide electricity for 3,200 families, and reduce 5,600 tons of carbon dioxide emissions. The Asan projects will be equipped with sprinklers, in order to reduce the temperature of the solar modules, by lowering the indoor temperature to save energy at the same time in the hot season.
Major professors in academia recently have broken components, a big step forward in the direction of the battery exchange.

June 2013 IEEE Power Electronics special issue of power electronic applications in the photovoltaic field, including three articles aimed submoduleconverter (translation: 'component converter'), they were from the three power electronics Daniel group MIT, UIUC UofColorado,. This technique is a component in the battery is divided into three groups, the installation of a maximum power point tracking (MPPT) to each group so that you can maximize reduce mismatch losses.

The size, efficiency and stability of the device of this technology has a very high demand, the MIT research team used an ultra-high switching frequency converter (veryhighswitchingfrequencyconverter) to reduce the size of the energy storage element so that it can easily the put into the original module junction box (junctionbox).
Course, academia hot is not necessarily equivalent to a high practical value, not necessarily to prove that is the future direction of development.

Large inverters and small solar cell manufacturers topology, control method, and switching elements are not the same, there is a competitive relationship. At least in the large-scale photovoltaic power plants, micro-inverse also see less than the value of any application. But I personally think that this technology brings high efficiency in small-scale distributed systems, safe and convenient installation, design flexibility and other advantages will make it stand out. Price factors can hinder the promotion of a product, from the historical point of view, the price factor does not hinder a technology widely used.

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