开发新能源和可再生资源是全世界面临的共同课题，在新能源中，太阳能发电已成为全球发展快的技术。太阳能作为一种清洁无污染的能源，开发前景十分广阔。然而由于太阳存在着间隙性，光照强度随着时间不断变化等问题，这对太阳能的收集和利用装置提出了更高的要求。目前很多太阳能电池板阵列基本都是固定的，不能充分利用太阳能资源，发电效率低下。据测试，在太阳能电池板阵列中，相同条件下采用自动跟踪系统发电设备要比固定发电设备的发电量提高35%左右。
所谓太阳能跟踪系统是能让太阳能电池板随时正对太阳，让太阳光的光线随时垂直照射太阳能电池板的动力装置，能显著提高太阳能光伏组件的发电效率。目前市场上所使用的跟踪系统按照驱动装置分为单轴太阳能自动跟踪系统和双轴太阳能自动跟踪系统。所谓单轴是指仅可以水平方向跟踪太阳，在高度上根据地理和季节的变化人为的进行调节固定，这样不仅增加了工作量，而且跟踪精度也不够高。双轴跟踪可以在水平方位和高度两个方向跟踪太阳轨迹，显然双轴跟踪优于单轴跟踪。
从控制手段上系统可分为传感器跟踪和视日运动轨迹跟踪（程序跟踪）。传感器跟踪是利用光电传感器检测太阳光线是否偏离电池板法线，当太阳光线偏离电池板法线时，传感器发出偏差信号，经放大运算后控制
执行机构
，使跟踪装置从新对准太阳。这种跟踪装置，灵敏度高，但是遇到长时间乌云遮日则会影响运行。视日运动轨迹跟踪，是根据太阳的实际运行轨迹，按照预定的程序调整跟踪装置。这种跟踪方式能够全天候实时跟踪，其精度不是很高，但是符合运行情况，应用较广泛。The development of new energy and renewable resources is a common issue facing the world. Among the new energy, solar power generation has become the fastest growing technology in the world. As a clean and pollution-free energy, solar energy has a very broad development prospect. However, due to the gap of the sun, the illumination intensity changes with time, which puts forward higher requirements for solar energy collection and utilization devices. At present, many solar panel arrays are basically fixed, which can not make full use of solar energy resources, and the power generation efficiency is low. According to the test, in the solar panel array, the power generation capacity of the power generation equipment using the automatic tracking system is about 35% higher than that of the fixed power generation equipment under the same conditions.
The so-called solar tracking system is a power device that can make the solar panels face the sun at any time and let the sunlight vertically irradiate the solar panels at any time, which can significantly improve the power generation efficiency of solar photovoltaic modules. At present, the tracking system used in the market is divided into single axis solar automatic tracking system and double axis solar automatic tracking system according to the driving device. The so-called single axis means that the sun can only be tracked in the horizontal direction, and the height is artificially adjusted and fixed according to the geographical and seasonal changes, which not only increases the workload, but also the tracking accuracy is not high enough. Dual axis tracking can track the sun track in both horizontal and altitude directions. Obviously, dual axis tracking is better than single axis tracking.
In terms of control means, the system can be divided into sensor tracking and solar trajectory tracking (program tracking). Sensor tracking uses photoelectric sensors to detect whether the sun ray deviates from the normal of the battery board. When the sun ray deviates from the normal of the battery board, the sensor sends a deviation signal, which is controlled after amplification and operation
Actuator
To re align the tracking device with the sun. This kind of tracking device has high sensitivity, but it will affect the operation in case of dark clouds covering the sun for a long time. The tracking of apparent solar motion track is to adjust the tracking device according to the actual running track of the sun and the predetermined program. This tracking method can track all-weather real-time. Its accuracy is not very high, but it conforms to the operation situation and is widely used.