Research significance of energy storage capacity configuration of wind and solar hybrid power genera

Introduction The significance of research on energy storage capacity configuration of wind and solar hybrid power generation systems. Hello, do you want to ask what the significance of research on energy storage capacity configuration of wind and solar hybrid power ge

Research significance of energy storage capacity configuration of wind and solar hybrid power genera

Hello, do you want to ask about the significance of research on energy storage capacity allocation of wind and solar hybrid power generation systems? The significance of the research on energy storage capacity configuration of wind and solar hybrid power generation systems is as follows:

1. Energy storage technology can not only buffer the unstable power of wind power, photovoltaic, etc., but also realize the transfer of energy in space and time, becoming a solution effective way to solve the above problems.

2. The wind-solar hybrid power generation system can effectively solve the problems of distributed renewable energy in microgrids, especially the intermittency, volatility and misalignment of "source" and "load" of wind-solar hybrid power generation.

Problems of electricity consumption in complementary solar and wind power generation

The initial investment in wind power generation is relatively large, and the construction period is generally very short compared to other methods. Wind power generation also has diversified power generation. The characteristics of the mode are that it can be operated on the network, as a complementary system with diesel generators, or independently.

Advantages of wind power generation

Wind power resources are inexhaustible. Using wind power to generate electricity can reduce environmental pollution and save conventional energy sources such as coal and oil. Wind power generation technology is mature, the cost is relatively low among renewable energy sources, and it has broad development prospects. Wind power technology can be flexibly applied and can be operated on the grid or independently off the grid. It can also form a complementary power generation system with other energy technologies. The wind farm operation model can supplement power for the national grid, and small wind turbines can provide production and daily electricity for remote areas.

The process of wind power generation

The wind blows the blades to rotate, and the blades drive the engine, converting mechanical energy into electrical energy. As for the generator, the principle of electromagnetic induction is used to generate simple wind power. You can use that small motor (Toy 4) The kind used in driving cars is enough), install a blade on the rotating shaft, connect an ammeter to the place where the battery should be connected, and use the wind to turn the blade, and the ammeter pointer will deflect.

At present, domestic photovoltaic power generation and wind power generation are developing at full speed. They have many similarities and many differences. The difference is that the return flow method is different. Photovoltaic power generation often has a relatively high input voltage. , the current is average, the current of wind power generation is very high, the voltage is average, and the energy of the wind farm is much greater than that of photovoltaics, so the detection standards for wind power are very strict. For example, wind power requires that frequency points within 2KHz must be measured.

What is the content of the wind-solar hybrid power generation technology research project?

Your battery parameters are not complete and the voltage is not given. Therefore, it is impossible to calculate the storage capacity of your battery. If calculated as 2V, the battery can only store 2V*100A*4=0.8 kilowatt-hours of electricity, and your freezer uses at least 3 kilowatt-hours of electricity a day. Your battery is out of use.

Even if your battery capacity is sufficient, I strongly do not recommend your idea of ​​obtaining power.

①Wind-solar hybrid refers to an ideal power generation method in a specific area where the wind is strong at night and the wind is light during the day. Some places are very windy during the day, so the complementarity of scenery and scenery is out of the question.

② If you use wind power and photovoltaic at the same time, the supporting facilities are more complicated and the investment is large (you can also put the wind power upstairs, how many wires are needed, and you are not afraid of theft), and there is no such perfect system yet.

③Wind power and photovoltaic power supply are still unstable and can be used as supplementary power sources. It is very reliable to rely solely on them. You still need to prepare a generator.

It is recommended that ① you should prepare a long line, there must be a place with electricity on the construction site

② prepare two sets of sufficient batteries, one set can be charged underground, and the other can be used .

How can the wind-solar hybrid power generation system provide power to users when there is neither wind nor sun?

Chengyuan wind-solar hybrid street light system is the most competitive between the new energy industry and conventional power systems. System is also the new energy industry that can develop on a large scale, and it is also the latest and fastest growing industry abroad. Its advantages are: first, the construction cost is close to that of conventional street lights, and it is more convenient to construct than conventional street lights, and is not limited by geographical location and power supply conditions; second, the operating cost is much lower than conventional street lights, and the reliability is high; third, it is beautiful in appearance and convenient for new energy sources. Universal education.

The wind and solar complementary independent power supply system can be configured according to the power requirements of the communication base station. It is used for unattended weather stations and transfer stations to microwave communication stations.

The coverage of wireless communication networks depends on the network construction of communication base stations, and the construction of the power supply system of communication base stations has become the biggest constraint in improving the release range of communication base stations. The wind and solar hybrid power supply system can make the most effective use of natural resources. It is the most effective power supply system for communication base stations.

A certain county belongs to the south subtropical humid climate zone. Under the influence of atmospheric circulation and the vast sea, it forms a maritime climate with obvious monsoons. There is no severe cold in winter, no scorching heat in summer, rare frost and snow, and sufficient sunshine. The annual average temperature is 19.5oC, the average temperature in the coldest month (February) is 10.5oC, and the average temperature in the hottest month (July) is 27.9oC. The average annual precipitation is 1196.2 mm, and the rainfall is unevenly distributed. There is little rain and frequent droughts in summer and autumn, with an average of more than three droughts per year. The average annual wind speed is 6.3 meters/second, and the average annual wind speed in coastal areas is 8.9 meters/second. The number of days with wind power ≥ level 8 in the whole year is 84.5 days (140.2 days at Dongao Station). Typhoon activities are frequent, usually 3 to 5 times a year

This county is an island county mainly engaged in fishing. Fishery, mainly marine fishing, is Pingtan's pillar industry. According to expert estimates, the county's wind power resources can reach 1 million kilowatts. Among them, Yangtze River Ao wind power resources reach 450,000 kilowatts.

The wind-solar complementary fishing system provides various types of electricity for long-term fishing residents. Can produce significant economic benefits.

Due to the strong complementarity between solar energy and wind energy, wind and solar complementary power generation systems make up for the resource deficiencies of independent wind power and photovoltaic systems. At the same time, wind power and photovoltaic systems can be used interchangeably in the battery pack and inverter links, so the cost of wind and solar hybrid power generation systems can be reduced and the system cost tends to be reasonable.

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