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converted to AC power control technology, often referred to as inverter technology that
transform, the mapping device known as the inverter. Overall, both the AC-DC or
DC-AC, are different according to the need to convert AC or DC power supply
specifications into a unified form. Because all the advantages of AC power, making it
the most electricity in the form of electrical equipment uniform. Therefore, the power
conversion technology mainly refers to the DC power into AC power inverter
technology, to adapt to different forms of energy require the use of uniform in a variety
of power supply voltage electrical equipment, as well as flexibility for grid
transmission and distribution power. With the increase in energy demand and solar
energy, inverters and inverter technology becomes more and more important[2]. Can be
said to a variety of power conversion technology is a solar photovoltaic energy in
particular, an important link in energy utilization. Based on this, on the converter and
inverter technology, the basic requirements are: the power supply at the same time, to
improve and enhance the power of the power factor; to improve and enhance the ability
of anti-electromagnetic interference, reducing harmonic pollution; lower conversion
loss, improve efficiency (high efficiency); reduce manufacturing costs, reduce size and
weight; improve stability and reliability. The 5 aspects of the basic requirements for the
technology we provide a broad research topic.
3 Status of the Inverter
With the development of technology and the increasing energy demand in recent years,
power conversion technology has also been rapid development. The following
application status of the inverter for a brief introduction.
3.1 Solar Photovoltaic Power Stations with the Characteristics of the Inverter
Inverter solar photovoltaic power station, power supply and power electronics has
become a hot research topic industry. As shown in Figure 1. Solar PV power plant has
three inverter characteristics different from other inverters.
Fig. 1. Solar PV Inverter
First, high efficiency: It is now commonly used in photoelectric conversion
efficiency of solar cell matrix <15%, very low, if the inverter efficiency is low, the solar
cells convert to the power loss finally out, a great pity, therefore, required inverter high
efficiency. Otherwise, the matrix must increase the number of solar modules,
increasing the area occupied by matrix, thus greatly increasing the solar photovoltaic
 
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