摘要
在现有林区生态观测站中,存在着蓄电池频繁充放电影响自身寿命和系统运行效率低等问题。针对这些问题,设计了基于DSP+FPGA硬件控制架构的光储能单元协调控制器。该控制器根据林区光照特点与负荷用电需求,将光储单元与负荷的功率作为协调控制判据,采用多工作模式组合的协调控制方法,确保在系统电压稳定前提下实现尽量优先利用光伏电池直接为负荷供电,同时在光照充足时蓄电池进行下垂充电和三阶段快速充电,以均衡蓄电池SOC,提高系统续航能力。最终,经硬件在环实验,验证了所设计控制器的有效性。
In the existing forest ecological observation stations,there are some problems,such as frequent battery charging and discharging,affecting the service life and low system operation efficiency.To solve these problems,a coordinated controller of optical energy storage unit based on DSP+FPGA hardware control architecture is designed in this paper.According to the lighting characteristics and load power demand of the forest area,the controller takes the power of the optical storage unit and the load as the coordinated control criterion.The coordinated control method of multi working mode combination is adopted to ensure that under the premise of stable system voltage,priority is given to the use of photovoltaic cells to directly supply power to the load.At the same time,when the light is sufficient,the battery will be sagged and charged rapidly in three stages to balance the battery SOC and improve the system endurance.Finally,hardware-in-the-loop experiments verify the effectiveness of the designed controller.
作者
曹慧颖
刘素梅
谢丽霞
彭角奎
赵泽宇
金一凡
刘刚
CAO Huiying;LIU Sumei;XIE Lixia;PENG Jiaokui;ZHAO Zeyu;JIN Yifan;LIU Gang(Beijing Forestry University,Beijing 100091,China;North China Electric Power University,Beijing 102206,China)
出处
《电工技术》
2023年第2期116-122,共7页
Electric Engineering
基金
北京林业大学“北京市级大学生创新创业训练计划”(编号S202110022094)。
关键词
光储单元
协调控制器
林区生态观测站
控制模式
三阶段充电
photovoltaic storage unit
coordination controllers
forest ecological observation stations
control mode
three-stage charging