CN201937292U - Small-sized wind and light complement independent power supply system - Google Patents

Abstract

The utility model discloses a small-sized wind and light complement independent power supply system comprising a wind driven generator, a photovoltaic cell array and a storage cell and also comprising a central energy source manager and controller; the wind driven generator is connected with the storage cell through a wind power control module of the central energy source manager and controller; the photovoltaic cell array is connected with the storage cell through a photovoltaic control module of the central energy source manager and controller; an inverting circuit is connected with the storage cell through the central energy source manager and controller; a main circuit of the central energy source manager and controller is respectively connected with the wind driven generator, the wind power control module, a photovoltaic plate array and the photovoltaic control module through sensors; the central energy source manager and controller is used for sampling and analyzing the voltages and the currents of the wind driven generator and the photovoltaic plate array, the output of the wind power control module as well as the voltage and the output current of the photovoltaic control module and monitoring the temperatures of the storage cell and a mainboard of the central energy source manager and controller.

Description

A kind of small-sized wind light mutual complementing autonomous power supply system

Technical field

The utility model relates to a kind of high-performance, low-cost wind light mutual complementing independent power supply device, and especially a kind of residents wind light mutual complementing independent power supply device belongs to the new forms of energy application.

Technical background

The utilization of solar energy and wind energy is subjected to the generally attention of various countries in recent years day by day, and it is the highest to have become in the new energy field development of exploitation level, and technology becomes heat most, and is most widely used general, one of novel energy of tool commercialized development condition.China's solar energy resources is very abundant, the whole nation have more than 2/3 area year amount of radiation greater than 502 kilojoules/square metre, year sunshine time was above 2000 hours; The wind resource of China is also very abundant, according to China Meteorological Administration's measuring and calculating, estimates about 32.26 hundred million kilowatts of national land wind energy total resources, about 7.5 hundred million kilowatts of wind energy on the sea reserves by liftoff 10 meters height.We can say that China is a country that is fit to very much utilize solar energy and wind energy.

China from last century the fifties take up to study solar energy and wind energy power technology, after the eighties in 20th century, the two generation technology has all been obtained important breakthrough in succession, and has produced emerging photovoltaic and wind power generation industry thus.The new forms of energy industry is 20 th century later one of fastest-rising new high-tech industries in the world, and wherein the nearly 10 years average annual growth rate of photovoltaic industry is 22%, and especially nearly 5 years average growth rate is especially up to 35%.And the wind power generation industry is 31% from the 1996-2002 average growth rate per annum, and wind power generation has accounted for 0.4% of the total electric weight in the world.Although at present the cost of photovoltaic generation is also up to 6～8 times of common coal electricity, wind power cost still is higher than 1.5～3 times of coal electricity cost, and (the degree electricity cost of Da Ban city wind-powered electricity generation is about 0.3 yuan, the networking electricity price was 0.46 yuan in 2005), but continuous quickening along with industrialization process, and the improving constantly of correlation technique, human will welcome epoch of utilizing photovoltaic and wind power generation on a large scale in the near future (according to the prediction in the calendar year 2001 world energy sources forum, to the middle of this century, the proportion of regenerative resource in world's energy resource structure will be greater than 50%, and wherein the proportion of solar energy and wind energy will reach 13% and 12% respectively).Photovoltaic of China and wind-powered electricity generation industry also are at an early stage of development, and market is in breeding phase.Calendar year 2001, former State Economic and Trade Commission/World Bank/Global Environment Facility---the formal startup of Chinese renewable resource development promotion project (being called for short GEF); 2002, National Development and Reform Committee's " Chinese bright engineering---western provinces and regions Wu Dian township energising plan " (abbreviation send electricity to go to the countryside) started; In December, 2005, " regenerative resource is sent out " legislation is passed through; " China's no electric rural construction engineering " (abbreviation send electricity to the village) start in the end of the year 2006.These a series of behaves have greatly promoted the development of China's photovoltaic and wind-powered electricity generation use.

The integrated application of wind light mutual complementing power supply, LED illuminator, can be used as an independently electric power system, to be not easy to lay the place of power equipment away from electrical network, explore and field study work station, remote agriculture and animal husbandry resident family and island, beacon etc. as frontier sentry, communication base station, highway, highway and railway signal station, the address of army away from the city.From real angle, efficiently solve China and see that solving the electric power that does not have electricity in the family supplies with problem, satisfies the daily need for electricity of user substantially.The family is economical and practical, easy to maintenance with power supply, use and management is simple, be particularly suitable for the national conditions of China, the exploitation of residents wind one light complementary system, from the angle of reality, not only meaningful to the electrical problem that solves China more than 900 ten thousand no electric families, and to small-sized fan more than the 20 general-purpose family of the present whole nation from the net type, more than 40 ten thousand solar photovoltaic power users, after rural power grids extend to be transformed, place with good conditionsi can realize progressively that wind one light complementation generates electricity by way of merging two or more grid systems.

The utility model content

The purpose of this utility model is: according to above technical disadvantages and user's request; by improving the control in the wind-photovoltaic complementary power supply system, the performance index of management system; increase the system that improves protection; and optimize each configuration of components and parameter, thereby obtain a kind of high-performance, low cost, the low wind-photovoltaic complementary power supply system of safeguarding coefficient.

For achieving the above object, concrete technical scheme of the present utility model is: a kind of small-sized wind light mutual complementing autonomous power supply system, comprise wind-driven generator, photovoltaic panel array, storage battery, central management, controller, it also comprises central management, controller, and described wind-driven generator is connected with described storage battery by central management, controller wind-powered electricity generation control module; Described photovoltaic battery array is connected with described storage battery by central management, controller photovoltaic control module; Described inverter circuit is connected with described storage battery by central management, controller; Described central management, controller main circuit are connected with described wind-driven generator, described wind-powered electricity generation control module, described photovoltaic panel array, described photovoltaic control module by transducer respectively.Central authorities energy conservation, controller are used to sample and analyze the voltage and current of described wind-driven generator, photovoltaic panel array; the output of described wind-powered electricity generation control module, photovoltaic control module voltage and output current; and monitor the temperature of described storage battery, central management, controller mainboard; make wind-driven generator follow the photovoltaic panel array to be in maximum generation power, protect described wind-driven generator, described storage battery, central management, controller, and to the storage of the energy with distribute and carry out optimal management, control.

Little process chip that described central energy conservation, controller adopt is a PICl6F73 type single-chip microcomputer.

The circuit that described wind power generation control module and photovoltaic generating module are adopted all is BUCK circuit.

Compared with prior art, the present invention is fitted together system controller and inverter the central apparatus of formation system.Central management, controller are carried out MPPT maximum power point tracking technology (MPPT technology) to wind-driven generator and photovoltaic panel array; Provide comprehensive runaway safeguard measure to wind-driven generator, made its equal energy normal power generation under gentle breeze and high wind environment; A parts such as storage battery, central energy conservation, controller mainboard, inversion module are carried out temperature monitor in real time, the long-time normal operation of support equipment; To the charging of inverter and wind-powered electricity generation, the optimum energy conservation of photovoltaic charged implementation, effectively prevent to overcharge, short of electricity, overvoltage and under-voltage, prolong storage battery useful life.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described in further detail

Fig. 1, system block diagram of the present invention

Fig. 2, the energy conservation of central authorities of system of the present invention, controller principle block diagram

This embodiment

Referring to Fig. 1, the related wind-photovoltaic complementary power supply system of the utility model is a stand alone generating system, and system is made up of wind-driven generator 1, photovoltaic panel array 2, wind-powered electricity generation control module 3, photovoltaic control module 4, central management, controller 5, temperature monitoring module 6, batteries 7, inversion module 8, drain charge device 9, electrical appliance equipment 10.Wind-driven generator 1 is connected with central management, controller 5 by wind-powered electricity generation control module 3, photovoltaic panel array 2 is connected with central management, controller 5 by photovoltaic control module 4, temperature monitoring module 6 is connected with wind-powered electricity generation control module 3, photovoltaic control module 4, central management, controller 5, batteries 7, inversion module 8, drain charge device 9 respectively, all electrical appliances 10 connect by inversion module 8 central management, controller 5, thereby obtain electric energy.

In the present embodiment,, be a kind of self-adaptation control method based on fuzzy control to the control method that wind-powered electricity generation and photovoltaic generation adopted.With reference to Fig. 2, wind power generation and solar power generation can reduce cost greatly like this, and make control oversimplify through same DC/DC charging controlling unit.Wind-powered electricity generation and photoelectricity are through after the anti-reverse control, electric current is through same BUCK circuit, MPPT control removes to seek wind-powered electricity generation and the total maximum power point of photoelectricity, this point may not be to be photoelectricity and wind-powered electricity generation best operating point simultaneously, but with interior family usefulness property mini system, is economical and simple and easy to do concerning multikilowatt.Because most electrical appliances use AC power, so used inverter in the prime of load.The normal light electric system can disconnect charge circuit, and wind-powered electricity generation can not be opened a way generally when overcharging, otherwise blower fan causes driving easily, damages owing to overtension makes motor.Be the protection blower fan, when storage battery has been filled and the energy output of system during still greater than power consumption, for preventing accumulator super-charge and guarantee the inverter operate as normal that controller can be connected the drain charge device automatically consume unnecessary electric energy.

Claims (4)

1. small-sized wind light mutual complementing autonomous power supply system, comprise wind-driven generator, photovoltaic panel array and storage battery, it is characterized in that it also comprises central energy conservation, controller, described wind-driven generator is connected with described storage battery by central energy conservation, controller wind-powered electricity generation control module; Described photovoltaic battery array is connected with described storage battery by central energy conservation, controller wind-powered electricity generation control module; Described inverter circuit is connected with described storage battery by central energy conservation, controller; Described central energy conservation, controller main circuit are connected with described wind-driven generator, described wind-powered electricity generation control module, described photovoltaic panel array, described photovoltaic control module by transducer respectively.It is used to receive and analyze the direct voltage and the direct current of described wind-driven generator; the output voltage of described wind-powered electricity generation control module and output current; the direct voltage of described photovoltaic panel array and direct current; described photovoltaic fills the output voltage and the output current of control module; and monitor described storage battery; central authorities' energy conservation; the temperature of controller mainboard; make wind-driven generator follow the photovoltaic panel array to be in maximum generation power; protect described wind-driven generator; described storage battery; central authorities' energy conservation; controller, and to the storage of the energy with distribute and carry out optimal management; control.

2. central energy conservation according to claim 1, controller is characterized in that, it has comprised central little process chip main circuit, wind-powered electricity generation control module, photovoltaic control module, control module, inverter circuit, temperature sampling, keyboard, display module etc.

3. the little process chip main circuit of central authorities according to claim 2 is characterized in that, employed little process chip is a PICl6F73 type RISC single-chip microcomputer.

4. wind-powered electricity generation control module according to claim 2, photovoltaic control module is characterized in that, its control technology that adopts is MPPT control.

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