The importance and application scenarios of power quality analysis02-26, 2024

The importance of power quality analysis:
Power quality refers to the quality of AC power supplied to users by the public power grid, caused by terminal loads. Power electronics technology has a positive impact on energy conservation and conversion, but it is also a major source of harmonic pollution in the power grid. The use of various power electronic devices leads to voltage instability, overvoltage, harmonic generation, and serious pollution of power supply quality.
Eliminating the problem of high-order harmonics in the power supply and distribution system can improve the quality of electricity, which has a positive effect and significance on the safety, stability, and economic operation of the power system. Due to the use of electrical equipment by modern industrial, commercial, and residential users, these factors all have the impact of harmonics, electromagnetic interference, and power factor reduction on power quality, which have higher requirements for the standards of power quality. When the power quality of the power grid is disturbed or polluted by the above factors, we need to use professional testing equipment - power quality analyzer to detect it. It can be determined whether it is consistent with the relevant national standards for power quality according to the test results. Then to improve power quality and make targeted improvements to the power grid accordingly.
Application scenarios for power quality analysis:
1. Check if it complies with the IEEE 1159 power supply standard to ensure that the power supply to the factory/building/machine is clean.
2. Other algorithms can be used to continuously monitor the predictive health status of memory, heaters, and drivers 24 * 7 in cloud and edge systems.
3. Compare the energy usage between different machines in the factory.
4. Calculate the utilization and productivity of the machine.
5. Measure the energy consumption per unit of productivity.
6. Estimate the actual electricity cost through an accurate energy usage cost model, which depends on time of day, time of year, etc.
7. Use a time capture mechanism to capture electrical events with small duration of surge cargo in detail.