First, basic concepts
A
Power Inverter is a power electronic device whose primary function is to convert direct current (DC) to alternating current (AC). This conversion is critical in a variety of application scenarios, especially where DC power (such as
solar panels, battery packs, etc.) needs to be converted to AC power for use by household appliances, industrial equipment, or power systems.
Second, the working principle
The inverter is quickly switched through internal electronic switching devices (such as MOSFETs, IGBTs, etc.) to produce alternating current close to sine waves. These switching devices operate according to specific control strategies to ensure that the output AC has a stable voltage, frequency and waveform quality.
3. Key parameters
The performance of the inverter can be evaluated by the following key parameters:
Rated power: The maximum power that the inverter can continuously output.
Conversion efficiency: The proportion of energy lost during the conversion of direct current to alternating current by the inverter.
Output voltage/frequency: The voltage and frequency of the AC output by the inverter.
Waveform distortion: The degree of difference between the inverter output waveform and the standard sine wave.
Protection function: inverter built-in overload protection, short circuit protection, overtemperature protection and other safety functions.
