Scholarlink

<p>The development of efficient energy management strategies for electric vehicle (EV) charging is crucial to reduce grid stress and enhance renewable integration. This paper presents a solar-integrated energy management system that coordinates Grid-to-Vehicle (G2V) and Vehicle-to-Grid operations through a solar irradiance and battery state-of-charge (SIBSOC) based controller. The proposed method dynamically adjusts charging and discharging modes depending on irradiance and SOC conditions. MATLAB/Simulink simulations are carried out under high, medium, and zero irradiance conditions. Results show that under optimal irradiance (1000 W/m<sup>2</sup>), the photovoltaic (PV) array is capable of delivering up to 96% of the EV charging demand, with excess power injected into the grid. When irradiance drops to 500 W/m<sup>2</sup>, the PV contribution reduces proportionally, yet the system sustains a stable DC link voltage of 850&#xa0;V, ensuring uninterrupted charging. In the absence of irradiance, the EV battery supplies power back to the grid, achieving a 14–18% reduction in grid dependency during peak demand hours. Compared with conventional grid-only charging, the proposed control reduces grid power draw by approximately 42% and improves overall system efficiency by 11.6%. These findings confirm that the SIBSOC-based strategy enhances grid reliability, minimizes renewable intermittency impact, and supports sustainable EV integration into modern power systems.</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

Development of a solar-integrated energy management system for grid-to-vehicle and vehicle-to-grid power exchange

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月29日

查看全文
  • N. Venkata Koteswara Rao,
  • K. Bala Krishna

摘要

The development of efficient energy management strategies for electric vehicle (EV) charging is crucial to reduce grid stress and enhance renewable integration. This paper presents a solar-integrated energy management system that coordinates Grid-to-Vehicle (G2V) and Vehicle-to-Grid operations through a solar irradiance and battery state-of-charge (SIBSOC) based controller. The proposed method dynamically adjusts charging and discharging modes depending on irradiance and SOC conditions. MATLAB/Simulink simulations are carried out under high, medium, and zero irradiance conditions. Results show that under optimal irradiance (1000 W/m2), the photovoltaic (PV) array is capable of delivering up to 96% of the EV charging demand, with excess power injected into the grid. When irradiance drops to 500 W/m2, the PV contribution reduces proportionally, yet the system sustains a stable DC link voltage of 850 V, ensuring uninterrupted charging. In the absence of irradiance, the EV battery supplies power back to the grid, achieving a 14–18% reduction in grid dependency during peak demand hours. Compared with conventional grid-only charging, the proposed control reduces grid power draw by approximately 42% and improves overall system efficiency by 11.6%. These findings confirm that the SIBSOC-based strategy enhances grid reliability, minimizes renewable intermittency impact, and supports sustainable EV integration into modern power systems.