Static Var Generator(SVG)
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Deacero Saltillo Steel Plant 13.8kV/15Mvar SVG
Customer Needs
Mexico's Deacero Saltillo steel plant is located in the northern city of Saltillo, Mexico. The STATCOM device is installed in the Deacero Steel Plant's substation and officially put into operation on December 8, 2020. The project uses containerized STATCOM (model RSVG-15-13.8-TWOY).
- Control objectives: power factor ≥ 0.97 (partial inductance)
- Harmonic requirements: meet Mexico national standards (IEEE 519-2014)
RXPE Solution
- Load condition
The main load of Deacero steel plant in Mexico is the wire rolling mill. Its maximum reactive load is about 11 Mvar, its main harmonic is 5th, and its maximum harmonic current is about 100A.
On-site PCC checkpoint is on 220kV side, supplying power to the factory through 220kV/13.8kV main transformer - Compensation scheme
STATCOM device is a cascade structure directly connected to the 13.8kV busbar, and the control targets are power factor and harmonics.
The on-site assessment measurement point is at the remote end, and the remote voltage and current signals cannot be collected. Therefore, the reactive power is compensated by setting the gain coefficient and the offset coefficient, and the harmonics are dynamically compensated on-site.
Customer Benefits
On-site power situation and compensated power factor
- Main interface of equipment operation (before compensation)
- Main interface of equipment operation (after compensation)
Comparison of grid-side voltage and current waveforms before and after compensation
- Grid voltage and current waveform before compensation
- Grid voltage and current waveform after compensation
Grid side current spectrum before and after compensation
- Grid-side current spectrum before compensation
- Grid-side current spectrum after compensation
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