Scholarlink

<p>Variations in solar irradiance caused by cloud movement can lead to sudden and unpredictable changes in the power output of large-scale photovoltaic plants. To address this, the study introduces a robust power smoothing strategy that ensures stable plant output under both clear and overcast sky conditions. The proposed method intelligently manages the battery energy storage system (BESS) by regulating the state of charge within optimal limits and minimizing energy losses from frequent charge–discharge cycles. A 15-level cascaded H-bridge voltage source converter (CHB-VSC), operating at the fundamental frequency and rated for megawatt-scale operation, is employed in the power conversion stage. It gives details of the state-of-charge estimation process and inter-cell balancing technique across H-bridge modules. Performance of the 20&#xa0;MW PV plant integrated with a 10&#xa0;MW/5&#xa0;MWh BESS is validated through both simulation and real-time testing, demonstrating effective mitigation of power fluctuations and compliance with grid requirements.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Enhancing Grid Integration of Solar PV Plants Through Fluctuation Mitigation

  • 期刊论文

  • 发表日期：

    2026年1月2日

查看全文
  • Subir Karmakar,
  • Madan Gopal Sharma,
  • Bhim Singh

摘要

Variations in solar irradiance caused by cloud movement can lead to sudden and unpredictable changes in the power output of large-scale photovoltaic plants. To address this, the study introduces a robust power smoothing strategy that ensures stable plant output under both clear and overcast sky conditions. The proposed method intelligently manages the battery energy storage system (BESS) by regulating the state of charge within optimal limits and minimizing energy losses from frequent charge–discharge cycles. A 15-level cascaded H-bridge voltage source converter (CHB-VSC), operating at the fundamental frequency and rated for megawatt-scale operation, is employed in the power conversion stage. It gives details of the state-of-charge estimation process and inter-cell balancing technique across H-bridge modules. Performance of the 20 MW PV plant integrated with a 10 MW/5 MWh BESS is validated through both simulation and real-time testing, demonstrating effective mitigation of power fluctuations and compliance with grid requirements.