Due to the widespread use of inductive loads, many enterprises face challenges such as low power factors and high energy losses in their power grids. These issues not only reduce grid efficiency but may also result in financial penalties from utility companies. By implementing low-voltage reactive power compensation measures, enterprises can effectively improve power factor, reduce energy losses, and optimize voltage quality. Against this backdrop, it is worth exploring why parallel capacitors are chosen over SVG (Static Var Generators) as a means of low-voltage reactive power compensation.

1. Advantages of Reactive Power Compensation with Parallel Capacitors

In industrial power supply networks, appropriately configured parallel capacitors can provide necessary reactive power support for loads. This approach is favored for its following features:

1.Low Cost: Compared to other types of compensation devices such as SVG, capacitors are more economical in terms of procurement and maintenance costs.

2.Ease of Installation and Maintenance: Capacitors are simple in structure, easy to install, and require minimal daily maintenance.

3.High Technical Maturity: Parallel capacitor technology has a long history, with proven reliability and stability, making it adaptable to a wide range of applications.

2. Characteristics of SVG in Reactive Power Compensation

With advancements in power electronics, SVG has emerged as a cutting-edge solution for reactive power compensation. It offers the following notable features:

i.Fast Response: SVG can quickly adjust output to meet transient changes in reactive power demand.

ii.Low Harmonic Generation: Compared to traditional compensation methods, SVG generates fewer high-order harmonics, helping maintain grid purity.

iii.Wide Adjustment Range: SVG can flexibly adjust reactive power over a broad range to adapt to varying operating conditions.

iv.Low Loss and Noise: During operation, SVG exhibits low energy loss and noise levels.

3. Why Choose Parallel Capacitors?

Despite the technical advantages of SVG, many enterprises still prefer parallel capacitors for practical applications. The main reasons include:

1).Economic Considerations: For most general electrical environments, the basic reactive power compensation function provided by capacitors is sufficient. Their low cost makes them a highly cost-effective choice.

2).Broad Applicability: Mature capacitor technology is suitable for enterprises of all sizes and different types of loads without the need for complex pre-assessments.

3).Ease of Maintenance: Once installed, capacitors typically require infrequent maintenance, reducing long-term operational costs.

For enterprises with specific requirements for power quality and dynamic response speed, SVG remains an excellent choice. Ultimately, whether to choose parallel capacitors or SVG should depend on the specific needs, budget constraints, and grid conditions of the enterprise to achieve optimal compensation results.