铅酸蓄电池充放电参数检测电路的仿真与设计

独立光伏系统铅酸蓄电池充放电参数的检测对于整个系统的能量控制十分重要。介绍了蓄电池充放电参数检测的特点，设计了充放电电压和电流检测电路，并基于saber仿真平台进行了检测电路的仿真，介绍了以ATmega8L单片机为核心的充放电检测系统的原理和软件设计流程。通过试验证明，系统检测误差较小，电路简单，满足了工程控制的需要，能为独立光伏系统蓄电池充放电控制策略提供准确的控制参数。

Simulation and Design of Charge and Discharge Detection Circuit for Lead-acid Battery

The detection of parameters is very important for energy control of lead-acid battery in stand-a/one PV system. The peculiarity of the voltage and current detection circuit of lead-acid battery is introduced. The detection circuit is also designed under the state of charging （ or discharging） in stand-alone PV system. The circuit is simulated based on the saber designer labs. This paper also introduces the principle of the detecting for the circuit and software flow chart based on ATmegaSL microcomputer. With the simple circuit and high accuracy, the experiment proves that this device can meet the demand of engineering control, which can importantly provide the precise parameters for control strategy.