This paper presents a comparison between five control strategies for HCPV sun tracking that comprise open-loop by means of Solar Equations, closed-loop by Sun position feedback (using an electro-optical sensor and a DC power sensor), and pointing ahead of the Sun. The performance of the control strategies is tested under a fully calibrated sun-tracker conditions and not-calibrated conditions to expose the problematic of the high accuracy sun pointing. When the sun-tracker is calibrated, all control strategies perform in a very similar way in terms of efficiency of use of available light energy, with the exception that one of the control strategies does not need prior calibration. The measured loss in efficiency when the sun-tracker is not calibrated precisely is approximately equal to 6%.

本文介绍了 HCPV 太阳跟踪的五种控制策略之间的比较，包括通过太阳方程的开环、通过太阳位置反馈的闭环（使用光电传感器和直流功率传感器）以及指向前方太阳。在完全校准的太阳跟踪器条件和未校准的条件下测试控制策略的性能，以暴露高精度太阳指向的问题。当太阳跟踪器被校准时，所有控制策略在可用光能的使用效率方面都以非常相似的方式执行，除了其中一个控制策略不需要事先校准。当太阳跟踪器没有精确校准时，测得的效率损失大约等于 6%。