Power electronics industry in the domestic market demand
First, power electronic devices
Power electronics in the national economy is of great status; 21 to 95% of power subject to the power electronics can use to deal with. Facing the environment and energy issues also need high-power, high-efficiency power conversion and control, the power electronics technology will serve as a basis for more and more important.
Power electronic devices toward the high-performance, intelligence, all-digital control, systematic and China green (hazards Harmony) development. Application of the next hot spot is the Frequency, power systems and power electronics, automotive electronics, information, office automation, electronic home appliances with the power, traction (electric locomotive, urban mass transit vehicles) power electronics, new energy (solar, wind, fuel Battery) inverter device, and so on.
Projected demand for all types of devices:
Electrolytic aluminum plant
"Five-Year Plan" period to consider an annual increase of aluminum 100,000 tons, and about 250,000 power plant kW, together with technical, early electrolysis device in order to reduce power consumption, small to large components in place of components, each year 50,000 kW, a total of need Power supply about 300,000 kW.
Salt electrolysis device
At present, the country has allowed the building of graphite anode caustic soda project. Ion-exchange membrane caustic soda production currently accounts for about 17%, ion-exchange membrane caustic soda can be power-saving 1 / 3, finished high concentration, a small area of infrastructure, pollution-free, good economic returns, so the business-to-exchange membrane into law The high enthusiasm. "Five-Year Plan" period of transformation for a year if 5% each year salt electrolysis DC power supply 100,000 kW.
Electric arc furnace power
Iron and steel industry to promote electric arc furnace - ladle refining furnace - casting - rolling process, the ratio of electric furnace steel in 2003 will reach 32%, will add a total of 13,200,000 tons of steel furnace. 60% of direct electric arc furnace, it takes 22 years, 100 tons of DC furnace. Each year 440,000 kW DC power supply.
IF Power
At present, Taiwan's annual production of about 1,000 (the industry and the electric industry each half), the average power per 250kW.
Converter
The inverter market a lot in recent years, the Chinese market in the converter sales increased 15% in average annual sales 1,000,000,000 yuan. At present, 95% of the inverter and imports, 5% of the imports of China-made device using frequency converter assembly.
Electrostatic precipitator device
High-voltage power rectifier main products are electrical devices dust, which can be used in power plants, cement plants, steel mills, chemical plants.
"Five-Year Plan" period if the thermal power units by 70%, should increase by 35,000,000 kW, together with the Power "on behalf of small to large," 20,000,000 kW, the total installed capacity of thermal power for 55,000,000 kW, the power required by high-voltage electrostatic dust Taiwan Power 550 or so per year for the 110 or so.
Excitation power
"Five-Year Plan" period the annual growth in installed capacity of 15,600,000 kW or so. This exciting unit out every year 1560 × 6% = 9.4 million kW.
UPS (UPS)
With the popularity of e-finance, opened the information highway and computer applications, with the result that UPS domestic market demand. Foreign investors in droves, our existing market, UPS has dozens of foreign brands, have an impact of 20. UPS domestic power in the multi-10kVA about, as far as production insufficient market demand statistics of 10%.
SVC (SVC)
The general trend is that demand is growing, according to statistics in previous years, only on the supply of ABB's China Steel, substations, aluminum, coal and so on SVC14 sets, with a capacity of 10-500kV ,35-180Mvar.
Urban mass transit vehicle converter device
At present, China has 15 cities to apply for the construction of subway and light rail to obtain the approval of the road project, the line length 350km, to be built each year of 40-70km subway or light rail. As 10-15 kilometers per trolley into account, total annual Taiwan 400-1050 vehicles, each vehicle to be 2-3kA/2.5-4.5kVGTO devices 2. Per 2.5km to set up a traction converter station, it takes a year to build 16-28 seat converter station.
The new energy inverter device
New energy, including wind power, solar power, fuel cell power generation, is the most mature and wind power. Due to intermittent wind power have, in general and solar power or diesel power generation each other and with battery, the inverter device to send power grids.
"Five-Year Plan" period, the growth rate of wind power will be greater than the "Ninth Five-Year Plan."
Second, power electronic devices
According to the power electronic devices and applications needs, taking into account the national "Tenth Five-Year" during the development focus of the main types of power electronics demand forecasts are as follows:
IGBT (insulated gate bipolar transistor) is the core of the development of power electronic devices, which indicates the potential demand for its year-on-year rate of 30-40% of the development of the "Five-Year Plan" period 4,000,000,000 yuan domestic market capacity. Foreign broader application of IGBT devices, foreign markets will be far greater than domestic demand. In total demand, high-voltage IGBT in the "Five-Year Plan" period mainly used in electric locomotive and urban light rail vehicles, motor Frequency Control, in the field of small-scale HVDC, the annual demand of about 5000.
High-power high-voltage thyristor rectifier and the development of North Korea in two directions, first in low-volume modular, with a growth rate of 10-15% of annual demand for 150,000. In addition, the high and medium pressure high-power thyristors, will be used for HVDC large motor excitation and control, large-scale industrial power, reactive power compensation and other fields, "Five-Year Plan" period, the annual growth rate of 20%, of which more than 4000V or 2000A Thyristor above, the need to be 15,000 years.
● GTO (GTO) as a result of traction in the field of urban light rail vehicles in particular the development of demand, annual demand is about 1000 or so, with the high-voltage IGBT development, GTO will be a gradual replacement.
