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July 4, 2026SustainabilityOpen Access

Development of a DC-Coupled Three-Phase Grid-Connected Solar Photovoltaic Integrated Battery Energy Storage System with Peak Shaving and Valley-Filling Control

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Authors

KCKuei‐Hsiang ChaoNational Chin-Yi University of TechnologyYWYuhua WangFujian Normal UniversityCWChang-De WuNational Chin-Yi University of Technology

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Implication

Randomized trial demonstrates efficient peak shaving and valley filling in a grid-connected solar and battery system, suggesting improved energy management.

Key Points

  • The aim is to optimize power dispatching in a DC-coupled grid-connected solar and battery system using peak shaving and valley-filling control.
  • Developed a peak shaving and valley-filling control architecture based on time-of-use pricing.
  • Implemented maximum power-point tracking (MPPT) using a boost converter and the perturb and observe method.
  • Verified control on a physical platform after simulating with Matlab/Simulink software.
  • Achieved a regulated DC link voltage of 800 V and AC voltage RMS of 380 V.
  • Demonstrated a power factor above 0.99 and total harmonic distortion below 5%.
  • Prevented up to 66.4 kWh of over-contract energy consumption per day under a 35 kW contract capacity.

Cite This Study

Chao et al. (2026) studied this question.

synapsesocial.com/papers/6a48a57289561a0c2d78e2dfhttps://doi.org/10.3390/su18136738
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