Communication Satellite Power Supply
In the 1960s, scientists had already applied solar cells to space technology—communications satellites. At the end of the last century, in the process of human self-reflection, this kind of clean and direct form of energy for photovoltaic power generation has become more cordial. Not only in space applications, but also in many fields. Such as: solar garden light, solar power household system, independent system of village power supply, photovoltaic water pump (water or irrigation), communication power, cathodic protection of oil pipeline, power supply of optical cable communication pump station, seawater desalination system, road sign in town, high speed Highway signposts, etc. Advanced countries such as Europe and the United States have incorporated photovoltaic power generation into urban power systems and villages in the remote areas and natural villages. The integration of solar cells and building systems has become an industrial trend.
Off-grid power generation system
The solar power generation [1] controller (photovoltaic controller and wind-solar hybrid controller) regulates and controls the generated electric energy. On the one hand, the adjusted energy is sent to the DC load or the AC load, and on the other hand, the excess energy is sent. To the battery storage, when the generated electricity can not meet the load needs, the controller sends the battery power to the load. After the battery is fully charged, the controller must control the battery not to be overcharged. When the stored energy of the battery is discharged, the controller must control the battery not to be over-discharged to protect the battery. When the performance of the controller is not good, the service life of the battery has a great influence, and ultimately affects the reliability of the system.
The task of the battery pack is to store energy so that the load can be used at night or on rainy days.
The inverter is responsible for converting DC power to AC power for AC loads. The inverter is the core component of the photovoltaic wind power system. Due to the relative backwardness and remoteness of the area of ​​use and maintenance difficulties, in order to improve the overall performance of the photovoltaic wind power generation system and ensure the long-term stable operation of the power station, high requirements are placed on the reliability of the inverter. In addition, due to the high cost of new energy generation, the efficient operation of the inverter is also very important.
Products include: A, Photovoltaic Module B, Fan C, Controller D, Battery Pack E, Inverter F, Wind/PV Power Generation Control and Inverter Integrated Power Supply
Grid-connected power generation system
Shanghai Liyou Electric Co., Ltd.'s renewable energy grid-connected power generation system uses renewable energy generated by photovoltaic arrays, wind turbines, and fuel cells, etc. without battery energy storage and is directly fed back through a grid-connected inverter [2]. Grid power generation system.
Because the energy is directly input into the power grid, the configuration of the battery is eliminated, the process of storage and release of the battery is omitted, the power generated by the renewable energy can be fully utilized, the energy loss can be reduced, and the system cost can be reduced. Grid-connected power generation systems can use commercial power and renewable energy in parallel as the power source for local AC loads and reduce the rate of power shortage in the entire system. At the same time, renewable energy grid-connected systems can play a role in peaking the utility grid. The grid power generation system is the development direction of solar wind power generation and represents the most attractive energy utilization technology in the 21st century.
Products include: A. Photovoltaic grid-connected inverter B, small wind turbine grid-connected inverter C, large-scale fan converter (dual-feed converter, full-power converter)