CAJ | 학술논문

提出了一种太阳能电池充电管理系统方案,旨在提高太阳能电池的能量利用率。设计的太阳能充电管理系统以 MSP430F2274单片机作为主控制器,通过动态调节数字电位器 MAX5401,从而使 BQ24650芯片的 Vmpptset 电压值(也就是太阳能电池的最大功率电压)动态变化。Vmppset 动态变化的过程就是最大功率点追踪的过程,整个动态调整的依据是自行设计的改进扰动观察法；同时利用单片机定时器产生的 PWM 波形来控制 MOS 管组成的开关,进行能量的分配调度。通过自行设计的太阳能电池模拟器对系统功能进行验证。结果表明,太阳能最大功率追踪效率能够稳定的维持在98%左右；加入动态电源路径管理技术之后使系统的太阳能利用率提高了16%,并且使铅酸电池充放电次数减少。
제출료일충태양능전지충전관리계통방안,지재제고태양능전지적능량이용솔。설계적태양능충전관리계통이 MSP430F2274단편궤작위주공제기,통과동태조절수자전위기 MAX5401,종이사 BQ24650심편적 Vmpptset 전압치(야취시태양능전지적최대공솔전압)동태변화。Vmppset 동태변화적과정취시최대공솔점추종적과정,정개동태조정적의거시자행설계적개진우동관찰법；동시이용단편궤정시기산생적 PWM 파형래공제 MOS 관조성적개관,진행능량적분배조도。통과자행설계적태양능전지모의기대계통공능진행험증。결과표명,태양능최대공솔추종효솔능구은정적유지재98%좌우；가입동태전원로경관리기술지후사계통적태양능이용솔제고료16%,병차사연산전지충방전차수감소。
A solar charging management system is put forward to improve the energy efficiency of solar panels.The solar charging management system in this paper, MSP430F2274 microcontroller is used as microprocessors, dynamically adjusts the digital potentiometer (MAX5401 ),causing the chip voltage (Vmpptset)of the BQ24650 (ie solar maximum power voltage)dynamically changes.The dynamic adjustment process is the process of maximum power point tracking (MPPT).An improved perturbation observation is used as the MPPT Algorithm.Dynamic Power-Path Management based on the PWM technique is used to dynamically allocate the energy between the photovoltaic panel and the lead-acid battery,which improves the energy efficiency of the system.A solar simulator is designed to carry out experiments.the results show that the MPPT efficiency is at around 98%,after adding the dynamic power path management technology the energy efficiency of solar panels increases by 1 6%.The times of the charge and the discharge of the lead-acid battery is reduced.