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改进的光伏系统控制策略以降低纳米电网中的电力管理成本
Improved PV System Control Strategies to Reduce Power Management Costs in Nanogrids
| 作者 | Jaeyun Yim · Junyeob Kim · Jeonghwan Gil · Sesun You · Frede Blaabjerg · Youngwoo Lee |
| 期刊 | IEEE Transactions on Sustainable Energy |
| 出版日期 | 2025年9月 |
| 技术分类 | 储能系统技术 |
| 技术标签 | 储能系统 户用光伏 |
| 相关度评分 | ★★★★★ 5.0 / 5.0 |
| 关键词 | 光伏系统控制方法 纳米电网运行成本 最优经济调度策略 储能系统 最大功率提取 |
语言:
中文摘要
本文提出一种改进的光伏(PV)系统控制方法,旨在降低纳米电网的运行成本。建立了包含光伏系统、储能系统(ESS)、网关及家庭负荷的综合模型,并考虑了储能系统约束、实测光照数据及家庭负荷需求。设计了一种结合改进型光伏控制的最优经济调度策略,能够提升系统在暂态与稳态下的控制性能,最大化光伏功率输出。由此减少储能系统的耗电量,并将多余电能出售给外部电网,从而降低整体运行成本。该方法通过纳米电网仿真及光伏实验平台验证了其有效性。
English Abstract
An improved PV system control method is proposed to reduce nanogrid operation costs in this paper. A model including it various components such as photovoltaic (PV) systems, energy storage systems (ESSs), gateways, and household loads is considered with the constraints of the ESS, PV irradiance from real data, and household load. We designed an optimal economic dispatch strategy with an improved PV system control method. Combining the proposed optimal economic dispatch and PV system control strategies, it can improve the control performance for both transient and steady-state responses thereby enabling the maximum power to be extracted from the PV. Consequently, the PV power is maximized, which allows the ESS to use less power and sell the surplus to external power sources, which means the proposed method decreases the nanogrid operation costs. This performance is verified via nanogrid simulations and PV experimental kit.
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SunView 深度解读
该纳米电网优化控制技术对阳光电源户用储能系统(如PowerStack系列)具有重要应用价值。研究提出的光伏-储能协同优化策略可直接应用于SG系列户用逆变器与ST系列储能变流器的联合控制算法,通过改进MPPT算法与储能充放电策略的协调,减少储能循环次数,延长电池寿命。其经济调度模型可集成至iSolarCloud平台,实现户用系统的智能能量管理,优化自发自用率与余电上网收益。该方法对阳光电源开发面向C端用户的智能家庭能源管理系统(HEMS)具有直接参考价值,可提升户用光储产品的经济性与市场竞争力,符合分布式能源精细化管理趋势。