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27 07, 2024

Types and specifications of photovoltaic grounding

By |2024-07-27T13:37:51+08:00July 27th, 2024|Guideline|0 Comments

In the photovoltaic power station system, grounding design is a crucial part of electrical design, which is related to the safety of equipment and personnel in the power station. Good grounding design can ensure that the power station operates in a safe environment for a long time, reduce the frequency of faults, and improve the overall operational efficiency of the power station.   What is grounding? Grounding refers to the connection of the neutral point of the power system and electrical equipment, the exposed conductive parts of electrical equipment, and the conductive parts outside the equipment to the ground through conductors. It can be divided into several types: working grounding, lightning protection grounding, and protective grounding.   The function of grounding? Prevent electric shock The impedance of the human body is closely related to the environmental conditions it is in. The more humid the environment, the lower the impedance of the human body, and the more susceptible it is to [...]

20 07, 2024

Eight major differences between air cooling and liquid cooling in energy storage systems

By |2024-07-20T09:37:01+08:00July 20th, 2024|Guideline|0 Comments

Energy storage system is the key support for building a new power system. It can convert electrical energy into chemical energy for storage so that it can be released when needed. At present, air cooling and liquid cooling are the two commonly used heat dissipation methods in energy storage systems.   Different heat dissipation principles Air cooling is to remove heat through air flow to reduce the surface temperature of the device. The advantages of air cooling are simple structure and low cost, but its heat dissipation effect is greatly affected by factors such as ambient temperature and air circulation, and is not suitable for high-power and high-density equipment. Liquid cooling is to remove heat through liquid circulation to reduce the internal temperature of the device. The advantages of liquid cooling are good heat dissipation effect and high stability, but its cost is high and it requires maintenance of the liquid circulation system. Different applicable scenarios The air cooling system [...]

13 07, 2024

What is the difference between photovoltaic inverters and energy storage inverters?

By |2024-07-17T11:07:34+08:00July 13th, 2024|Guideline|0 Comments

In the field of new energy, photovoltaic inverters and energy storage inverters are important devices that play an indispensable role in our lives. But what is the difference between these two? We will conduct in-depth analysis of these two inverters from the aspects of structure, function, and application scenarios.   Structural differences Firstly, in principle, an inverter is mainly a device that converts DC power into AC power. It utilizes the switching characteristics of semiconductor devices such as field-effect transistors or thyristors to control the power supply voltage and current through rapid switching, thereby achieving the conversion of DC to AC power. Energy storage inverters (PCS) are a broader concept that involves converting and regulating electrical energy through power electronic devices to achieve power transmission, conversion, and control. PCS mainly includes modules such as rectification, inverter, DC/DC conversion, among which the inverter module is just one of its components. Functional characteristics From a functional perspective, photovoltaic inverters mainly focus on [...]

3 07, 2024

Principle and implementation of photovoltaic inverter anti-reverse flow

By |2024-07-03T15:45:45+08:00July 3rd, 2024|Guideline|0 Comments

Photovoltaic inverter backflow prevention refers to a technical measure in a photovoltaic power generation system to prevent the power generated by the photovoltaic system from flowing back into the power grid. This technology ensures that the output power of the photovoltaic system does not exceed the actual power demand of the user, thereby avoiding adverse effects on the power grid or potential safety hazards. The demand scenarios for photovoltaic inverter backflow prevention are mainly concentrated in the following aspects: Residential photovoltaic system In the photovoltaic power generation system installed by residential users, if the power generation of the photovoltaic system exceeds the actual power demand of the household, the excess power may flow back into the grid. This may not only affect the stability of the grid, but also involve complex electricity billing and subsidy issues. Therefore, the photovoltaic system of residential users needs to have a backflow prevention function to ensure the balance between power generation and power consumption. [...]