Solar-power system

FIELD: solar-power engineering; power systems built around solar power stations.

SUBSTANCE: proposed solar-power system mainly used as universal regional power system has solar power stations and other power stations operating on reusable and traditional energy sources interconnected and connected to users by means of power transmission lines. Base equal-power solar power stations are installed in latitudinal direction at equal angular distance in longitude ΔU = 360°/n, where n = 2, 3, 4, 5, 6 is number of base solar power stations. Base solar power stations are connected through converters and Tesla step-up transformers to single-wire multiple-circuit power transmission line. Also connected thereto through Tesla transformers are converters, inverters, and three-phase power transmission lines using other reusable energy sources, that is solar power stations, hydroelectric power stations, windmill-electric stations, and biomass fired power stations, as well as power consumers. Total power capacity of base solar power stations equals that of all connected power consumers.

EFFECT: enhanced reliability of round-the-clock and round-the-year power supply to users.

7 cl, 4 dwg

 

The invention relates to solar energy, in particular to energy systems based on solar power. Existing localized solar power (Kerney D.W. and Price H.W. Solar thermal plants - LUZ concept (current status of the SEGS plants). Proceeding of the Second Renewable Energy Congress, Reading, UK, A.A.M. Sayigh (Ed.), Vol. 2, 1992, pp. 582-588) have a significant drawback associated with the irregularity of electricity generation in the obvious effects of astronomical and weather factors on the output power of the solar panels. The system of several solar power plants, combined into a single grid, but randomly distributed over the territory, has the same disadvantages.

The disadvantages of the known solar power systems is their inability to be used as the main component is a powerful regional or global energy system, since for smooth periodic and stochastic processes affecting the power output of solar panels required a very powerful buffer energy storage devices with high maneuvering characteristics, which in modern conditions is impractical for economic reasons. It is believed that the installed capacity of solar power plants in peak mode of operation should not exceed 10-15% of the t total installed capacity of power plants regional grids (Strebkov D.S. On the development of solar energy in Russian)// thermal engineering, 1994. v.41. No. 2. p.53-60). Under these conditions, fluctuating power solar power plants do not have a significant impact on quality of electricity supply.

Object of the present invention is to provide a mainly regional global energy system, in which power and generated electric power will be generated by solar power plants. This will help to eliminate daily and, in embodiments, the seasonal fluctuations of power generation system, solar power plants and to ensure all-year-round reliable environmentally friendly electricity consumers, this will reduced the greenhouse effect and reduced the negative impact of the fuel power plants on the environment.

This effect is achieved by the fact that a solar power system consists of solar power plants connected by transmission lines with each other and with consumers in such a way that the energy system contains basic solar power is the same power that are installed in the latitudinal direction in Africa, America, Australia, Europe and Asia at the same angular distance from each other in longitude, in degrees, is equal to

,

where n=2, 3, 4 5, 6 - the number of base solar power plants. Solar power is distributed in the latitudinal direction, and the distance between adjacent solar stations in longitude in degrees, not more than 7.5·min(h1+h2) degrees, where h1and h2- the duration of day length at the location of the stations, expressed in hours, a min(h1+h2) is selected as the minimum daily amount of all days in the year.

In another embodiment, a solar power system consists of solar power plants and power plant using other renewable energy sources, interconnected and with consumers energy transmission lines of electrical energy, thus energy system contains basic solar power is the same power that are installed in the latitudinal direction in Africa, America, Australia, Europe and Asia at the same angular distance from each other in longitude, in degrees equal to

,

where n=2, 3, 4, 5, 6 - the number of base solar power plants, and the base of the solar power plant are connected through high-frequency transformers and step up transformers Tesla to novocepnoi single-wire line transmission of electrical energy, which is attached via step-down transformers, Tesla, will straighten the Lee, inverters and three-phase power lines, other solar power plants, hydroelectric power plants, wind farms, power plants, biomass, and electricity consumers of the world, and the total power of the base power plants in the power system is equal to the total capacity of all energy consumers of the world, connected to the energy system on the day and night side of the earth.

Solar power system consisting of solar power plants and power plant using other renewable and traditional energy sources, connected with each other and with consumers power lines, system control and power control of power systems, characterized in that the energy system contains basic solar power is the same power that are installed in the latitudinal direction in Africa, in North America, Europe and Asia at the same angular distance from each other in longitude, in degrees, is equal to

,

where n=2, 3, 4, 5, 6 - the number of base solar power plants, and the base of the solar power plant are connected through high-frequency transformers and step up transformers Tesla to novocepnoi single-wire line transmission of electrical energy, which is also attached via the TRANS is oratory Tesla, rectifiers, inverters and three-phase power lines, other solar power plants, hydroelectric power plants, wind farms, power plants, biomass, and solar thermal power plants with traditional non-renewable energy sources as a back-up power plants and electric power consumers of the world, and the total power of the base power plants in the power system is equal to the total power of all consumers connected to the energy system on the day and night side of the earth, and the system control includes geostationary satellites observations of cloud cover and forecasting the power output of solar power plants and actuators to run backup power plants with different maneuverable and power characteristics for the cover graphics loads of the power system.

To ensure continuous and reliable power supply and level daily schedule energy production in solar power system consisting of solar power plants connected by transmission lines with each other and with consumers, neighboring solar power plants are located in different hemispheres of the Earth (North or South), and the distance between adjacent solar stations in longitude in gradesone more than 7.5· min(h1+h2) degrees, where h1and h2- the duration of day length at the location of the station, expressed in hours, a min(h1+h2) there is a minimum daily amount selected from all days of the year.

In a solar power system consisting of solar power plants connected by transmission lines between themselves and with the consumers energy system contains two basic solar power plants in the Northern hemisphere at an angular distance from each other in longitude 180° in areas 150-165° SD, 55-65° n. and 30-45° e, 50-65° n. and two basic solar power plant in the southern hemisphere at an angular distance from each other in longitude 180° in areas 60-75° W, 30-53° s. and 105-120° e, 20-35° s., basic solar power plants in the Northern hemisphere is set at an angular distance from the base of solar power plants in the southern hemisphere at the same angular distance in longitude is 90°.

In the solar energy system includes two basic solar power plants located in two areas with coordinates 6-16° SD, 20-42° n. and 164-172° e, 55-65° n. and United with two wind power plants located in the same areas, the total capacity of the underlying solar and wind power in the energy system is equal to the total power of all connected to the grid energy consumers on day and night side of the Earth.

In a variant of the design of the solar energy system contains three basic solar power plants located in three regions with coordinates 125-80° SD, 0-35° n; 5 SD-40° e, 0-35° n. and 115-160° e, 25-65° n. and at least one wind power plant, located in the area 115-160° e, 25-65° n, and the total power of solar to wind power plants in the area 115-160° e, 25-65° n. in the winter of equal power to each of the other basic solar power plants.

In a variant of the design of the solar energy system contains four basic solar power installed in areas with coordinates: 10-16° SD, 20-42° n, 80-74° e, 10-42° n, 170-164° e, 50-65° n. and 100-104° SD, 20-40° n. and at least one wind power plant in the area 170-164° e, 50-65° n, and the total capacity of solar and wind power plants in the area 170-164° e, 50-65° n. in the winter of equal power to each of the other three basic solar power plants.

In a variant of the design of the solar energy system has five basic solar power plants installed in areas with coordinates: 6-8° SD, 6-42° n, 64-66° e, 25-55° n, 136-138° e, 41-55° n, 150-152° SD, 55-60° n, 80-78° SD, 32-55°n. and at least one wind power plant in the area 150-152° e, 55-60° n, and the total capacity of solar and wind power plants in the area 150-152° e, 55-60° n. in the winter of equal power to each of the other four basic solar power

In one embodiment, the solar energy system consists of six basic solar power plants installed in areas 6-8° W, 6-42° n, 52-54° e, 15-55° n, 112-114° e, 21-55° n, 162-164° d.e, 52-65° n, 136-138° SD, 58-65°n, 76-78° SD, 34-55° n. and at least two wind power plants in areas 162-164° e 52-65° n. and 136-138° SD, 58-65° n, and the total capacity of each solar and wind power plants in the winter in areas 162-164° d.e, 52-65° n. and 136-138° SD, 58-65° n. equal power to each of the other four basic solar power plants.

The invention is illustrated by drawings, where figure 1 presents a map of the world indicating the location of the base of solar power plants located in the vicinity of Post-Weigand (Algeria, 24° n, 0° e), Shanghai, China, 31° n, 121° e) and San Diego (USA, 32° n, 117° SD). Figure 2 - map of Russia and neighboring countries with marked on it the locations of basic solar electrostatic damage to the module the Nations located in the vicinity, Pinsk (Belarus, 52° n, 26° e) and g Whelan (Russia, Chukotka A.O. 66° n, 170° SD). 3 shows the daily variations in electricity production for the 12 months of the year the global energy system, consisting of two solar power plants with a capacity of 0.45 billion kW each. The efficiency of a solar power station is 15%. The photoactive area of each plant is a square of side 55 km Total production of electrical energy in a solar power system is 1100 billion kW·h per year. As the source data used to calculate the mean multiyear values (averaging period not less than 10 years) insolation in the locations of the power plants. The calculation is made for solar plants with tracking of the Sun around the polar axis. During the five months from April to August of electricity from solar plants is fed into the system around the clock. Yet within two months of March and September, a break of not more than 2 hours per day with a slightly more uneven the daily run.

Figure 4 presents the daily changes of power for medium days all 12 months of the year the global energy system, consisting of three solar power plants with a capacity of 2.2 billion kW each. The calculation is made for stationary panels with angles of inclination to the horizon of 25° (Post-Weigand and Shang is AI) and 30° (San Diego). Combined solar power system all year round day evenly generates electricity.

Solar power plants in the system are distributed in the latitudinal direction so that the end of illumination of the photoactive surface of one of the plant coincides with the beginning of the lighting panels other nearest sunwise, station. By changing the distance between stations in longitude, it is possible to achieve not only the continuity of the diurnal variation of the average output power of the system, but also significantly increase the uniformity of the production of electricity.

Placing solar power systems on both sides of the equator eliminates seasonal fluctuations in electricity generation - winter decline in one hemisphere is compensated by the summer generation growth in the other.

Influence of weather factors on the power output of solar plants cannot be avoided. In Autonomous power to compensate for power fluctuations, solar power plants are used buffer energy storage. Modern buffer devices (electrochemical batteries, capacitive drives etc) have excellent maneuvering characteristics - they are automatically and quickly move from the charging mode to the category, but to create a large power system battery drives rather the capacity is almost impossible for economic reasons.

The proposed invention allows for compensation for power fluctuations in a large regional grid power plants using renewable and traditional energy sources.

Depending on the type, conventional power plants have different manoeuvring characteristics for the output station to the nominal power required from 2-3 minutes to several hours. More powerful power plants typically require more time. Observation of cloud cover in the vicinity of the solar power plants using geostationary satellites allows us to predict the power output level and, if necessary, to determine the start of the preparation for the launch of those or other backup power plants. This system allows you to completely stop or minimize the need to use the buffer drives instant action.

In use of the present invention of the state of Russia and Belarus, countries of the Eurasian continent, Africa and America, will have the opportunity within 5 to 12 months to use solar energy to produce electricity. This will allow for 40-100% reduction in carbon emissions responsible for climate change and to improve the environmental characteristics of areas in the locations of the solar electrostatic damage to the module is implemented, to reduce or completely eliminate the consumption of non-renewable fossil fuel resources.

1. Solar power system consisting of solar power plants and power plant using other renewable and traditional energy sources, connected with each other and with consumers power lines, characterized in that it contains the basic solar power is the same power that are installed in the latitudinal direction at the same angular distance from each other in longitude is equal to ΔU=360°/n, where n=2, 3, 4, 5, 6 - the number of base solar power plants, and basic solar power station connected via a radio-frequency converters and step up transformers Tesla to novocepnoi single-wire line transmission of electrical energy, which is also connected through Tesla transformers rectifiers, inverters and three-phase power lines of a power plant using other renewable energy sources: solar power, hydroelectric power plants, wind farms, power plants, biomass, and electricity consumers, and the total capacity of the basic solar power plants is equal to the total power of all connected consumers of electrical energy.

2. Solnechnogorsky system, consisting of solar power plants and wind power plants connected with each other and with consumers energy power lines, characterized in that it contains the basic solar power is the same power that are installed in the latitudinal direction at the same angular distance from each other in longitude is equal to ΔU=360°/n, where n=2, 3, 4, 5, 6 - the number of base solar power plants, and basic solar power station connected via a radio-frequency converters and step up transformers Tesla to novocepnoi single-wire transmission line, to which is also attached through the Tesla transformers rectifiers, inverters and three-phase power lines other solar and wind farms, as well as consumers of electrical energy.

3. Solar energy system according to claim 2, characterized in that the total capacity of the basic solar power plants is equal to the total power of all connected consumers of electrical energy.

4. Solar energy system according to claim 2, characterized in that it contains two basic solar power plants located in two areas with coordinates 6-16° SD, 2-42° n. and 164-172° e, 55-65° n. and United with two wind power plants located in the same areas, etc is than the total capacity of these basic solar and wind power plants is equal to the total power of all connected to the grid energy consumers.

5. Solar energy system according to claim 2, characterized in that it contains three basic solar power plants located in three regions with coordinates 125-80° SD, 0-35° n, 5 SD - 40° e, 0-35° n. and 115-160°e, 25-65°n, and at least one wind power plant, located in the area 115-160° e, 25-65° n, and the total capacity of the underlying solar and wind power plants in the area 115-160° e, 25-65° n. in the winter of equal power to each of the other two basic solar power plants.

6. Solar energy system according to claim 2, characterized in that the energy system contains four basic solar power installed in areas with coordinates 10-16° SD, 20-42° n, 80-74° e, 10-42° n, 170-164° d.e, 50-65° n. and 100-104° SD, 20-40° n, and at least one wind power plant in the area 170-164° e, 50-65° n, moreover, the total capacity of the underlying solar and wind power plants in the area 170-164° e, 50-65° n. in the winter of equal power to each of the other three basic solar power plants.

7. Solar energy system according to claim 2, characterized in that the energy system has five basic solar power plants installed in areas with coordinates 6-8° SD, 6-42° n, 64-66° e, 25-55° n, 136-138° e, 41-55° n,150-152° SD, 55-60° n, 80-78° SD, 32-55° n, and at least one wind power plant in the area 150-152° e, 55-60° n, moreover, the total capacity of the underlying solar and wind power plants in the area 150-152° e, 55-60° n. in the winter of equal power to each of the other four basic solar power plants.

8. Solar energy system according to claim 2, characterized in that it contains six basic solar power plants installed in areas 6-8° SD, 6-42° n, 52-54° e, 15-55° n, 112-114° e, 21-55° n, 162-164°e, 52-65° n, 136-138° SD, 58-65° n, 76-78° SD, 34-55° n, and at least two wind farms in areas 162-164° e, 52-65° n. and 136-138° SD, 58-65° n, and the total capacity of each solar and wind power plants in the winter in areas 162-164° e, 52-65° n. and 136-138° SD, 58-65° n. equal power to each of the other four basic solar power

9. Solar power system consisting of solar power plants and power plant using other renewable and traditional energy sources, connected with each other and with consumers power lines, and containing a control framework and management capacity of the grid characterized in that it contains the basic solar power is the same power that are installed in the latitudinal direction at the same angular distance from each other in longitude is equal to ΔU=360°/n, where n=2, 3, 4, 5, 6 - the number of base solar power plants, and basic solar power station connected via a radio-frequency converters and step up transformers Tesla to novocepnoi single-wire line transmission of electrical energy, which is also connected through Tesla transformers rectifiers, inverters and three-phase power lines other solar power, hydroelectric power, wind farms, power plants, biomass, and solar thermal power plants with traditional non-renewable energy sources as a backup power plants and consumers of electric energy, the system control includes geostationary satellites observations of cloud cover and forecasting the power output of solar power plants, as well as actuators to run these backup power plants with different maneuverable and power characteristics to cover its graphics loads.

10. Solar energy system according to claim 9, characterized in that the total power of the base of the u is cnyh power plants is equal to the total power of all consumers of electrical energy.

11. Solar energy system according to claim 9, characterized in that it contains two basic solar, located in two areas with coordinates 6-16° SD, 20-42° n. and 164-172° e, 55-65° n. and United with two wind power plants located in the same areas, and the total capacity of the underlying solar and wind power plants is equal to the total power of all connected consumers.

12. Solar energy system according to claim 9, characterized in that it contains three basic solar power plants located in three regions with coordinates 125-80° SD, 0-35° n; 5 SD - 40° e, 0-35° n. and 115-160° e, 25-65° n, and at least one wind power plant, located in the area 115-160° e, 25-65° n, moreover, the total capacity of the underlying solar and wind power plants in the area 115-160° e, 25-65° n. in the winter of equal power to each of the other two basic solar power plants.

13. Solar energy system according to claim 9, characterized in that it contains four basic solar power installed in areas with coordinates: 10-16° SD, 20-42° n, 80-74° e, 10-42° n, 170-164° e, 50-65° n. and 100-104° SD, 20-40° n, and at least one wind power plant in the area 170-164° e, 50-65° C. the., moreover, the total capacity of the underlying solar and wind power plants in the area 170-164° e, 50-65° n. in the winter of equal power to each of the other three basic solar power plants.

14. Solar energy system according to claim 9, characterized in that the energy system has five basic solar power plants installed in areas with coordinates: 6-8° SD, 6-42° n, 64-66° e, 25-55° n, 136-138° e, 41-55° n,150-152° SD, 55-60° n, 80-78° SD, 32-55° n, and at least one wind power plant in the area 150-152° e, 55-60° n, moreover, the total capacity of the underlying solar and wind power plants in the area 150-152° e, 55-60° n. in the winter of equal power to each of the other four basic solar power plants.

15. Solar energy system according to claim 9, characterized in that it consists of six basic solar power plants installed in areas 6-8° SD, 6-42° n, 52-54° e, 15-55° n, 112-114° e, 21-55° n, 162-164° e, 52-65° n. 136-138° SD, 58-65° n, 76-78° SD, 34-55° n, and at least two wind power plants in regions respectively 162-164° e 52-65° n. and 136-138° SD, 58-65° n, moreover, the total power of each base solar and wind power plants in the winter is present in the areas, respectively, 162-164° e, 52-65° n. and 136-138° SD, 58-65° n. equal power to each of the other four basic solar power plants.

16. Solar energy system according to claim 9, characterized in that adjacent the base of the solar power plants are located in different hemispheres of the Earth, North or South, and the distance between adjacent base solar power plants in longitude is not more than 7,5min(h1+h2) degrees, where h1and h2- the duration of day length at the location of the neighboring base solar power plants, expressed in hours, a min(h1+h2- the minimum daily amount of day length, selected from all days of the year at the location of the neighboring base solar power plants, expressed in hours.

17. Solar energy system according to claim 9, characterized in that the energy system has two basic solar power plants in the Northern hemisphere at an angular distance from each other in longitude 180° in areas 150-165° SD, 55-65° n. and 30-45° e, 50-65° n. and two basic solar power plant in the southern hemisphere at an angular distance from each other in longitude 180° in areas 60-75° W, 30-53° s. and 105-120° e, 20-35° s., moreover, the basic solar power plants in the Northern hemisphere is installed from the base of solar power plants in southern palasari is at the same angular distance in longitude 90°.



 

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