What is the advantages of hybrid power factor correction against capacitor banks?

Hybrid power factor correction refers to a combination of capacitor banks and power electronic converters (such as Active Power Harmonic Filter or Static Var Generator) used to improve power factor and mitigate harmonics in electrical power systems. The advantages of hybrid power factor correction over capacitor banks alone include:

1. Power Factor Correction: Hybrid solutions offer dynamic and precise control of reactive power compensation, allowing for accurate adjustment of the power factor as per the system requirements. Capacitor banks provide fixed reactive power compensation, whereas hybrid solutions can continuously adjust reactive power compensation based on the real-time power factor, resulting in improved power factor correction.

2. Harmonic Compensation: Hybrid solutions with power electronic converters can also address harmonic issues in the electrical system. They can actively monitor the harmonic content and inject appropriate compensation currents to cancel out the harmonics generated by non-linear loads. This results in reduced harmonic distortion levels and compliance with harmonic distortion limits specified in relevant standards.

3. Load Variation: Capacitor banks have a fixed reactive power compensation capacity and are primarily suitable for steady-state conditions. However, electrical systems often experience load variations, and the reactive power compensation requirements change accordingly. Hybrid solutions can dynamically respond to load changes and adjust reactive power compensation accordingly, ensuring efficient and accurate power factor correction under varying load conditions.

4. System Stability: Active compensation provided by hybrid solutions can enhance the stability of the electrical system. By actively controlling reactive power and mitigating harmonics, hybrid solutions can help maintain voltage stability, reduce equipment stress, and prevent system resonances that may occur due to interactions between the power system and non-linear loads.

5. Flexibility: Hybrid power factor correction solutions offer flexibility in adapting to various power system configurations and requirements. They can be programmed to address specific power factor targets, harmonic distortion limits, and different load conditions. The control algorithms can be adjusted based on system parameters and changes in load profiles.

It's worth noting that the selection of the optimal power factor correction solution depends on the specific requirements, characteristics, and size of the electrical system, as well as the cost considerations. Consulting with a power system engineer or specialist is recommended to determine the most suitable solution for a particular application.

YT focus on Static Var Generator(SVG), Active Power Filter(APF),Hybrid reactive power compensation.