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设计一种适用于聚光光伏发电装置的变频率时控追踪控制策略.通过采样时间将时间域上连续的太阳运动轨迹离散化, 以聚光光伏组件接收阈值角度为基础构建阈值区间, 设定太阳入射光线与光伏组件平面法线间误差角度为被控量, 使用查找表迭代法控制该被控量在阈值区间内动态变化, 进而实现光伏逐日发电装置对太阳位置的变频率追踪.经仿真分析, 该策略在追踪精度上优于匀速追踪控制策略与定步长追踪控制策略, 可使聚光光伏组件输出功率比保持在设定值之上, 且在追踪能耗上优于传统实时追踪控制策略.应用该策略可有效减少系统能耗和机械磨损, 具有较高的实用性与应用前景.“,”A new control strategy for concentration photovoltaic tracking system using variable tracking frequency was proposed in this article. In this strategy, the solar trajectory was discretized by sampling time and the threshold interval was built by using the incident threshold angle of photovoltaic panel. By setting the error of angle between the incidence light and the normal of photovoltaic panel surface as the controlled variable, the strategy uses the lookup table and iterative method to keep dynamic changes of the variable within the threshold interval, so that the solar tracking system can effectively track the solar position by using variable frequency. According to simulation results, the strategy performs better than the constant speed tracking strategy and fixed-step tracking strategy in the tracking accuracy, and keeps the PV modules output ratio above set value. Our proposal is also better than the traditional real-time tracking strategy in the tracking consumption. The system energy consumption and mechanical wear effectively can be reduced.