1. Passive and active inverters are categorized by output loading. Definition of Active Inverter: An inverter with its AC input connected to an AC power source and its DC inverter feedback to the grid is referred to as an active inverter. Definition of Passive Inverter: An inverter with its AC output not connected to the grid, directly connected to the load, converting the DC inverter into a fixed or adjustable frequency AC, known as a passive inverter.
2. Inverters can be categorized into voltage inverter circuits and current inverter circuits. Voltage inverters power series loads, also known as series resonance inverters. Current inverters power parallel loads, hence also referred to as parallel resonance inverters.
3. The main circuit equipment can be categorized into: fully controlled inverter circuits composed of fully controlled devices with self-closing capabilities; and semi-controlled inverter circuits composed of semi-controlled devices without self-closing capabilities (such as ordinary thyristors). Semi-controlled inverter circuits must use equipment to close and exit the conversion voltage channel. If the conversion voltage is sourced from the inverter load end, it is referred to as a load conversion inverter circuit. This circuit is only suitable for capacitive loads; for non-capacitive loads, the conversion voltage must be generated by an attached conversion circuit, known as an autotransformer inverter circuit. Aviation ground power 2, 36V aviation power 1, 400HZ variable frequency power supply 7, 115/200V power supply 2, 27V DC power supply 5, 400HZ power supply 12, aviation power.
4. They can be categorized into sine wave inverter circuits and non-sine wave inverter circuits. The advantages and disadvantages: sine wave inverter circuits have lower switch losses and should operate at higher frequencies. Non-sine wave inverter circuits have higher switch losses and operate at lower frequencies than sine wave inverter circuits.
5. Single-phase and multi-phase inverter circuits can be categorized by the number of output phases.
