In context of Power Quality Monitoring, Inverters work on PWM principles and generate: Lower order harmonics No harmonics Higher order harmonics None of these

Inverters, in the context of Power Quality Monitoring, work on Pulse Width Modulation (PWM) principles. PWM is a method used for generating variable voltages using digital means.

In terms of harmonic generation, inverters typically generate higher order harmonics.

Here's a step-by-step explanation:

1. An inverter converts DC power to AC power. This process is not perfect and can produce unwanted frequencies, known as harmonics.

2. The PWM technique is used to control the output voltage of an inverter. It switches the inverter devices on and off at a high frequency to create a series of pulses.

3. The width of these pulses is varied to control the output voltage.

4. This rapid switching can produce higher order harmonics. These are frequencies that are multiples of the fundamental frequency.

5. These higher order harmonics can interfere with other equipment and degrade the power quality. Therefore, filters are often used in conjunction with inverters to reduce these harmonics.

So, the answer to your question is: Inverters generate higher order harmonics.