Typical Case:
Beijing Benz Shunyi Plant
Project Background
The Beijing Benz Shunyi Plant integrates automated manufacturing with distributed solar PV generation, creating new requirements for power quality management and reactive power compensation.
Challenges
Distributed PV generation reduced the measured power factor, while production-related harmonics increased the risk of capacitor overvoltage and resonance. Conventional fixed-step compensation struggled to adapt to changing operating conditions.
INPOWER upgraded the existing reactive power compensation system at the Beijing Benz Shunyi Plant:
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Existing Cabinet Retrofit: Removed the original power capacitors and installed drawer-type Static Var Generator (SVG) modules within the existing cabinets, reducing modification work and costs.
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Dynamic Reactive Power Compensation: Provided real-time reactive power compensation to improve power factor and accommodate changing load and PV generation conditions.
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Integrated Power Quality Management: Utilized the configured SVG modules’ harmonic mitigation and three-phase imbalance correction capabilities to improve distribution system power quality.
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Modular Installation: Adopted a drawer-type design for convenient installation and equipment upgrades within the existing cabinets.
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On-Site Equipment Before and After Retrofit
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Data Comparison Before and After Retrofit
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Daily On-Site Work Summary by INPOWER Engineers
The retrofit was successfully completed while retaining the existing cabinet structures, minimizing disruption to normal production. The upgraded system supports improved power factor control, reduced harmonic impact, and more stable operation of the plant’s electrical distribution system under changing PV generation conditions.