考虑蓄电池荷电状态的光储系统能量管理控制策略

曾汉超; 唐勇; 陈隆; 张达敏; 郑雪钦; 江加辉

doi:10.19912/j.0254-0096.tynxb.2024-2228

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (4) : 161-169. DOI: 10.19912/j.0254-0096.tynxb.2024-2228

考虑蓄电池荷电状态的光储系统能量管理控制策略

曾汉超^1,2, 唐勇¹, 陈隆¹, 张达敏^1,2, 郑雪钦^1,2, 江加辉³

作者信息 +

ENERGY MANAGEMENT CONTROL STRATEGY FOR PHOTOVOLTAIC-ENERGY STORAGE SYSTEM CONSIDERING STATE OF CHARGE OF BATTERY

Zeng Hanchao^1,2, Tang Yong¹, Chen Long¹, Zhang Damin^1,2, Zheng Xueqin^1,2, Jiang Jiahui³

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文章历史 +

摘要

针对传统光储系统使用多个二端口变换器造成的体积和重量较大、光伏发电不稳定易使蓄电池过充过放等问题,提出一种考虑蓄电池荷电状态（SOC）的三端口变换器（TPC）能量管理控制策略,并深入研究变换器的原理特性、6种供电模式及其平滑切换机理。该三端口变换器是由双Buck/Boost与双有源桥（DAB）通过桥臂复用集成构成,该能量管理控制策略采用基于最小值选取的脉宽+移相调制,根据蓄电池荷电状态动态调整其充放电参考值,解决蓄电池的过充与过放问题,实现系统不同供电模式间的平滑切换;分析变换器的4种电压模态及其边界条件,并推导出输出功率与移相角、占空比的关系。半实物实验结果证实所提能量管理控制策略的可行性与有效性。

Abstract

To address the issues of large volume and weight caused by using multiple two-port converters in traditional photovoltaic （PV）-storage system, as well as the instability of PV power generation leading to battery overcharge and over discharge, an energy management control strategy of three-port converter （TPC） considering the battery’s state of charge （SOC） is proposed. The principal characteristics, six power supply modes and their smooth switching mechanism of the converter are thoroughly studied. The TPC is composed of dual Buck / Boost and dual active bridge （DAB） through the bridge arm multiplexing integration; the energy management control strategy adopts the pulse width + phase shift modulation based on the minimum value selection, and utilizs the SOC of battery to dynamically adjust its charge and discharge reference, which solvs the problem of overcharge and over discharge and realizs the smooth switching among different power supply modes. Four voltage patterns and their boundary conditions are analyzed, and the relationship between output power and phase shift angle and duty cycle was derived. Semi-physical experimental results verify the feasibility and effectiveness of the proposed energy management control strategy.

导出引用

曾汉超, 唐勇, 陈隆, 张达敏, 郑雪钦, 江加辉. 考虑蓄电池荷电状态的光储系统能量管理控制策略[J]. 太阳能学报. 2026, 47(4): 161-169 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2228

Zeng Hanchao, Tang Yong, Chen Long, Zhang Damin, Zheng Xueqin, Jiang Jiahui. ENERGY MANAGEMENT CONTROL STRATEGY FOR PHOTOVOLTAIC-ENERGY STORAGE SYSTEM CONSIDERING STATE OF CHARGE OF BATTERY[J]. Acta Energiae Solaris Sinica. 2026, 47(4): 161-169 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2228

中图分类号： TM46

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