SOLUTIONS
Proven success in power quality solutions Delivering reliable performance to strengthen your competitive edge
Proven success in power quality solutions. Delivering reliable performance to strengthen your competitive edge
Power Quality Solution for Railway Industry
Industry Overview
The rapid development of urban rail transit has made travel more convenient and boosted economic growth. However, the power supply systems rely on numerous cables, and the nonlinear loads (e.g., rectifiers, elevators, air conditioners) cause strong fluctuations, high harmonic content, and significant capacitive currents. These issues lead to equipment overheating, reduced lifespan, and potential safety risks. IKonMac’s harmonic mitigation solutions effectively address these power quality challenges, ensuring a green, safe, and stable power environment for rail transit.
Power Quality Issues
The subway distribution system uses a large number of nonlinear loads, mainly divided into two categories:
1. Traction rectification and inversion devices that generate high-order harmonics (such as 5th, 7th, 11th, 13th, 23rd, 25th, etc.).
2.Large nonlinear loads in substations and subway stations (such as switch power supplies, frequency converters, VVVF-controlled elevators, fans, cooling units, modern energy-saving lighting (LEDs), etc.) that generate harmonics (mainly 3rd, 5th, 7th, etc.).
The harmonic current distortion rate in rail transit usually reaches around 10-20%.
Power Quality Challenges
Harmonics can increase power losses, shorten equipment lifespan, and cause safety issues like overheating and malfunctioning of circuits, grounding protection, and remote controls. Long-term exposure to high harmonics can lead to grid resonance, causing power outages and accidents. They also contribute to equipment overheating, insulation aging, and failures in relay protection systems. Harmonics disrupt electronic instruments and communication systems, reducing quality, and can cause severe heating of neutral lines, rubber aging, and fire risks.
Solution
SUCCESSFUL RAILWAY CASES
3200Amps Active Harmonic Filter
Tianjin Metro Line 10
|
No. |
City |
Project |
Date |
Solution |
|---|---|---|---|---|
|
1 |
Heilongjiang |
Hadu Line High-Speed Railway Station PF Compensation Project |
November 2023 |
SVG |
|
2 |
Tianjin |
Tianjin Metro Line 10 |
May 2022 |
SVG |
|
3 |
Tianjin |
Tianjin Line 6 Harmonic Treatment Project |
April 2022 |
AHF |
SUCCESSFUL RAILWAY CASES
3200Amps Active Harmonic Filter
Tianjin Metro Line 10
|
No. |
City |
Project |
Date |
Solution |
|---|---|---|---|---|
|
1 |
Heilongjiang |
Hadu Line High-Speed Railway Station PF Compensation Project |
November 2023 |
SVG |
|
2 |
Tianjin |
Tianjin Metro Line 10 |
May 2022 |
SVG |
|
3 |
Tianjin |
Tianjin Line 6 Harmonic Treatment Project |
April 2022 |
AHF |
|
Date |
Project |
Solution |
|---|---|---|
| Nov2023 |
Hadu Line High-Speed Railway Station |
SVG |
| May2022 |
Tianjin Metro Line 10 |
SVG |
| Apr2022 |
Tianjin Line 6 Harmonic Project |
AHF |