China State Grid announced that it will build a nationwide smart grid by 2020, and has invested 4 trillion yuan for basic design and construction. The implementation of this ambitious plan will involve new energy power generation, new energy grid connection, large-capacity energy storage, UHV transmission, digital substations, smart metering and other related fields, opening an unprecedented global power equipment company. The huge market also raises higher technical challenges for semiconductor manufacturers and equipment manufacturers.
There are many key challenges in the construction of smart grid, "We can see that more needs include high-precision analog-to-digital converters and precision operational amplifiers, processors and controllers that support network functions, long life, wide Temperature range, high-reliability isolation devices, etc. "At the recently held" 2012 Industry Development Trends Media Seminar ", Zhang Songgang, technical business manager of Analog Devices, pointed out.
ADI has been involved in energy-related semiconductor solutions for more than a decade. In 2009, it established a new agency dedicated to smart grids and other energy applications, from energy metering chips to comprehensive energy and power system control systems. There are a wealth of product solutions in the program, which have always maintained leading technological advantages in power transmission and distribution, relay protection, measurement and control systems, electrical energy measurement and energy control, and occupy a high market share. Facing the huge opportunities brought by the gradual globalization of smart grid, what kind of observations does ADI have? What leading technical support can be provided?
Figure 1: In all aspects of distribution, transmission, distribution and use, ADI can provide leading technology solutions.
In the power generation sector, the prospect of new energy is still optimistic
The NPD Solarbuzz China project report recently pointed out that many photovoltaic manufacturing companies have formulated ambitious plans to prepare for independent or cooperative development of hundreds of megawatt projects in China in 2012. Many people in the industry have recently pointed out that after the reshuffle and decline in the second half of last year, the current cost of the photovoltaic market has fallen sharply. Now the cost of building power stations has been greatly reduced, and the market has begun to show a hot trend. In terms of wind power, according to the "Emerging Energy Industry Development Plan", in the offshore wind power plan alone, China's installed capacity during the "Twelfth Five-Year Plan" period is 5 million kilowatts, and the installed capacity in 2020 will reach 30 million kilowatts.
Although new energy represented by wind power and solar photovoltaic has ushered in rapid growth, it once faced a rollercoaster-like market reversal in 2011, but it is undeniable that new energy still has a bright future for development. "In the area of ​​power generation, new energy will be the main trend in the future. We will also spend more time focusing on the new energy field." Singer said, "At present, Chinese companies occupy the global market leading position in the field of new energy equipment manufacturing, ADI looks forward to Help Chinese companies to further improve their competitiveness in technology. "
New energy power generation mainly involves technologies including design and assembly of high-power wind turbines, generator control technology, high-power converter technology, MPPT control of photovoltaic systems, photovoltaic inverter technology and grid connection technology. "In these respects, ADI has relevant technology to provide support, especially ADI high-precision converters and operational amplifiers ensure the accurate measurement of voltage and current of new energy." Singer pointed out, "For example, the bus current of the inverter Detection and electrical isolation, ADI ’s AD7400 and AD7401, because they integrate Sigma-Delta modulators and ADI ’s patented iCoupler isolators, can greatly reduce system complexity, improve integration and stability. At the same time, for some use Hall The device is used as an isolated system. ADI also provides a precision ADC as a converter for bus current detection. In addition, for some applications that require motor speed / angle detection, due to the high system stability requirements, the RDC such as the AD2S1210 can provide a system Simple and stable conversion channel for positive / cosine signal processing. "
Figure 2: ADI provides a wide range of solutions in new energy fields such as wind, solar and energy storage.
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