Harmonic Analysis Study Awarded for 132/33/13.8 kV Substation with Filter Bank System
Evaluating harmonic performance, resonance risks, and system compliance for a multi-voltage substation with capacitor filter banks using DIgSILENT PowerFactory
Power Projects has been awarded a Harmonic Analysis Study for a 132/33/13.8 kV substation incorporating multiple capacitor filter banks and harmonic filtering systems. The study will focus on evaluating harmonic performance, identifying resonance risks and assessing overall system compliance under various operating conditions.
The project further strengthens Power Projects' experience in delivering advanced power quality and harmonic mitigation studies using industry-standard simulation platforms including DIgSILENT PowerFactory.
Supporting Reliable Power Quality Performance
As modern electrical networks continue to integrate large power electronic systems and capacitor-based compensation equipment, harmonic performance has become a critical aspect of substation design and operation.
Although harmonics are not directly visible within the network, their impact on system performance can be significant if not properly assessed and controlled. Elevated harmonic levels may contribute to:
The awarded study aims to assess these risks and support safe, stable and compliant operation of the substation.
Project Scope
The harmonic assessment will cover the complete 132/33/13.8 kV network associated with the substation. The study will evaluate system harmonic behaviour and verify the effectiveness of the installed filtering arrangements under different operating scenarios.
Technical Methodology
Power Projects will perform the analysis using detailed DIgSILENT PowerFactory simulation models developed specifically for harmonic and resonance assessment studies.
Model Development & System Representation
- Detailed electrical network model development
- Validation of network parameters and operating configurations
- Representation of capacitor banks and harmonic filter systems
- Review of system input data and operating scenarios
Harmonic Load Flow Assessment
Harmonic simulations up to the 100th harmonic order to evaluate:
- Harmonic contribution of major system components
- Interaction between network and filtering systems
Resonance & Frequency Scan Studies
Detailed frequency scan analysis to identify resonance conditions:
- Parallel resonance points
- Series resonance behaviour
- Interaction between capacitor banks, filters and network impedance
- System response following filter installation
Compliance Verification
Harmonic performance assessed against applicable grid code requirements and distortion limits. Recommendations provided for:
- Harmonic mitigation
- Improved filter performance
- Compliance enhancement
- Reliable long-term network operation
Project Delivery
The complete harmonic study is scheduled for delivery within three weeks from receipt of the Purchase Order and final project input data. Despite the complexity associated with harmonic modelling, resonance analysis and filter system representation, the study will be executed within the agreed project timeframe.
Delivery
Engineering Focus on Power Quality & System Stability
Power quality studies play an increasingly important role in modern electrical infrastructure, particularly in systems incorporating capacitor banks, filters and power electronic equipment.
Through this assignment, Power Projects continues to support utilities and industrial clients with specialised engineering studies focused on:
About Power Projects
Established in 2006, Power Projects provides specialised engineering services in power system studies, harmonic analysis, grid compliance and power quality assessment. The company supports utilities, renewable energy developers and industrial clients using advanced power system simulation platforms.