Three reactors for inverter system
Information sources：本站 | Release date：
2018-01-02
| Browse volume：107
Reactors are also called inductors. When a conductor is energized, it generates a magnetic field in a certain space occupied by it. Therefore, all current-carrying electrical conductors have a general sense. With the rapid development of power electronics technology, since the 1990s, AC frequency conversion speed regulation has become the mainstream of electric transmission, and its application range is increasingly wide; and the reactors used with inverters have the following three types, namely, incoming lines. Reactors, DC reactors, and output reactors.
1) Line reactor, LA1 is also called power coordination reactor, which can limit the voltage surge caused by sudden change of grid voltage and operation overvoltage, effectively protect the inverter and improve its power factor. When the incoming and outgoing line reactors are connected and not connected, the harmonic current input to the grid by the inverter can be seen to effectively suppress harmonic waves after the reactor is connected.
2) DC reactor, LDC DC reactor is connected between the DC rectification link and the inverter link of the inverter system. LDC can make the inverter link run more stably and improve the power factor of the inverter.
3) Output reactor, LA2 is connected between the output end of the inverter and the load (motor) to suppress the noise of the inverter.
