Sino-Korea Petrochemical Plant

Static Var Generator

The Industry

The petrochemical industry is critical for producing essential chemicals and materials derived from petroleum and natural gas. This sector is characterized by its high energy consumption and complex operations, requiring a stable and reliable power supply to ensure uninterrupted processes. Ethylene plants, in particular, are pivotal in the production of various chemicals used in plastics, solvents, and other industrial applications.

Background

The Sino-Korea Petrochemical Ethylene Debottleneck Reconstruction Project aims to enhance the production capacity of the ethylene plant to 1.1 million tonnes per annum (Mt/a). This significant upgrade involves addressing existing power quality issues to ensure optimal performance and efficiency of the plant's electrical systems.

Power Quality Problem

In the petrochemical industry, and specifically within ethylene production plants, power quality issues can significantly impact operations. Common power quality problems include:

Voltage Instability: Frequent voltage fluctuations can cause equipment malfunctions and inefficiencies.
Reactive Power Imbalance: High levels of reactive power can reduce the efficiency of the power system and increase energy costs.
Load Imbalance: Uneven distribution of load across the phases in a three-phase system can lead to overheating, equipment stress, and increased operational costs.
Harmonics: Non-linear loads, such as variable frequency drives and large motors, introduce harmonics into the power system, causing distortion and reducing power quality.

Performance

Implementing the 1800kVAr Static Var Generator Adjustment system in the Sino-Korea Petrochemical Ethylene Debottleneck Reconstruction Project resulted in several positive outcomes:

Improved Power Factor: Achieving near-unity power factor, which reduces the plant's energy consumption and costs.
Enhanced Voltage Stability: Maintaining stable voltage levels ensured uninterrupted and efficient operation of critical equipment.
Reduced Harmonic Distortion: Lowering harmonic levels improved the overall power quality, reducing the risk of equipment failures and maintenance costs.
Balanced Load Distribution: Even distribution of load across all phases minimized overheating and mechanical stress on electrical components, enhancing their reliability and longevity.