knowledge about the development status of sun tracking solar panel devices and techniques and the principles and applications of solar panel tracker and sun tracker accessories
The development status of solar tracking device and technology, as well as the principle and application of solar tracking device are introduced.
There are many ways to track the sun, but there are only two ways to use photoelectric tracking and tracking according to the trajectory of the sun. The latter tracking method can be further divided into dual-axis tracking and single-axis tracking. Photoelectric tracking The commonly used photoelectric tracking devices in China are: gravity photoelectric tracking […]
There are generally two types of concentrators: reflective and refracting. The main two are described below. Refractive Concentrators – Fresnel lens The Fresnel lens is transformed from a semi-circular lens. Figure 1 is a schematic diagram of a Fresnel lens concentrating light. The angle between the refraction surface of each tooth slot and the lens […]
1. Types and characteristics of concentrators In photovoltaic power generation systems, concentrators are often used to increase the light intensity, improve the conversion efficiency of photovoltaic cells, and reduce the cost of system devices. There are generally two types of concentrators: reflective and refracting. Among them, there are several types of reflective condensers, such as […]
1. Design of battery capacity and its charging characteristics The capacity of the battery refers to the storage capacity of the battery. It is usually expressed as the total energy released by the battery when the fully charged battery is discharged to the specified final voltage. (1) Design of battery capacity BC=A×QL×T0/CC In the formula, […]
In the process of using a lead-acid battery, the most important concern is its external electrical characteristics, especially its charge-discharge curve and rated capacity. The various characteristics of the battery are represented by the characteristic curve of the battery. When studying the charging curve, it is generally in the form of current limiting and constant […]
1. Concept of battery The battery is also called the secondary battery. After discharge, the active material can be recovered by charging method and discharged again, so it can be used repeatedly by charging and discharging. 2. Selection of battery for photovoltaic power generation system The energy storage device of the photovoltaic power generation system […]
Photoelectric sensor is a kind of sensor that converts optical signal into electrical signal. It has the advantages of simple structure, high precision, fast response speed, non-contact, etc. It is widely used in detection and control systems. The physical basis of photoelectric sensors is the photoelectric effect. This phenomenon is that when light irradiates an […]
(1) The number of photovoltaic cell modules connected in series NN The required working voltage can be obtained by connecting the photovoltaic cell components in series according to a certain number. In addition, when the solar photovoltaic cell array charges the battery, the number of photovoltaic cell components in series must be appropriate. If the […]
The volt-ampere characteristics of photovoltaic cells are shown in Figure 1, which shows the relationship between the output voltage and output current of photovoltaic cells under certain sunshine intensity and temperature, referred to as U-I characteristics. It can be seen from the U-I characteristics that the photovoltaic cell is neither a constant voltage source nor […]
In order to understand the working process of photovoltaic cells and the factors that affect the working efficiency of photovoltaic cells, it is necessary to analyze through equivalent circuit simulation. Photovoltaic cells are solid-state devices that use the electronic properties of semiconductor materials to directly convert sunlight into electrical energy. When sunlight shines on a […]