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How are current harmonics managed in the variable frequency drives of water treatment plants?

Time：

2019-01-05

Typical Case of Harmonic Control in Water Treatment Plant (Nanjing Pukou Water Treatment Plant)\nProject Background: A certain water treatment plant operates its intake pump motor using a high-power variable frequency drive. Due to the high-power diode rectification and high-power thyristor inversion within the variable frequency drive, high-order current harmonics are generated in the input and output circuits, which interfere with the power supply system, loads, and other nearby electrical equipment, affecting the normal operation of metering instruments.\nControl Plan: After on-site testing and analysis, it was determined that using one of our 100A active power filters could effectively suppress the harmonics, allowing the metering instruments to function normally.\nControl Effect: After the control measures were implemented, the harmonics were effectively suppressed.

Typical Case of Harmonic Control in Water Treatment Plant (Nanjing Pukou Water Plant)
Project Background:
A certain water treatment plant operates its intake pump motor driven by a high-power variable frequency drive. Due to the high-power diode rectification and high-power thyristor inversion in the inverter, high-order harmonics are generated in the input and output circuits, interfering with the power supply system, loads, and other nearby electrical equipment, affecting the normal operation of metering instruments.
Control Plan:
After on-site testing and analysis, using one of our 100A active power filters can effectively suppress harmonics, allowing the metering instruments to operate normally;
Control Effect:
GoodPower
After treatment, harmonics are effectively suppressed, and the current waveform approaches a sine wave, with stable operation of metering instruments.
Improving energy efficiency and enhancing power quality is what Guangda has always been committed to providing as an optimization solution for power systems. We have a professional team that can provide customized solutions based on the specific needs of our clients, bringing more stable and high-quality power support to their production and operations. If you have related issues, feel free to contact us at any time.

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