CN111490559A - Energy storage type wind-solar complementary off-grid power generation system for plateau - Google Patents

Energy storage type wind-solar complementary off-grid power generation system for plateau Download PDF

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Publication number
CN111490559A
CN111490559A CN202010275410.2A CN202010275410A CN111490559A CN 111490559 A CN111490559 A CN 111490559A CN 202010275410 A CN202010275410 A CN 202010275410A CN 111490559 A CN111490559 A CN 111490559A
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China
Prior art keywords
wind
solar
power generation
grid
complementary
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CN202010275410.2A
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Chinese (zh)
Inventor
郑清福
赵廷虎
郑向荣
于晓明
马力
彭丽花
郑祖华
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Tibet Huayang Heat Supply Engineering Service Co ltd
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Tibet Huayang Heat Supply Engineering Service Co ltd
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Priority to CN202010275410.2A priority Critical patent/CN111490559A/en
Publication of CN111490559A publication Critical patent/CN111490559A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • H02S10/12—Hybrid wind-PV energy systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/10—Frame structures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses an energy storage type wind-solar complementary off-grid power generation system for plateaus, which comprises a wind energy power generation assembly, a solar battery assembly, a wind-solar complementary controller, a storage battery pack and an off-grid inverter, wherein the wind energy power generation assembly is connected with the solar battery assembly through a wind-solar complementary controller; the wind power generation assembly is connected with the wind and light complementary controller, the solar battery assembly is connected with the wind and light complementary controller, the wind and light complementary controller is connected with the storage battery pack, and the storage battery pack is connected with the off-grid inverter. The energy storage type wind-solar complementary off-grid power generation system for the plateau solves the problem that no wind-solar complementary power generation system exists in the current plateau; the invention combines wind energy and solar energy to generate electricity, and fully utilizes abundant solar energy resources and wind energy resources in the plateau area, so the invention has better market prospect.

Description

Energy storage type wind-solar complementary off-grid power generation system for plateau
Technical Field
The invention relates to the technical field of wind energy and solar energy power generation, in particular to an energy storage type wind-solar complementary off-grid power generation system for plateaus.
Background
The western plateau areas of China are rich in solar energy resources and wind energy resources, so that the plateau areas have solar power generation and wind power generation; however, at present, no wind energy and solar energy complementary power generation system is available in the plateau area, so that power failure occurs under the conditions that a solar power generation assembly or a wind power generation assembly is damaged and no light or wind power is available for a long time, and the life of residents is greatly influenced.
Disclosure of Invention
The invention aims to provide an energy storage type wind-solar complementary off-grid power generation system for plateaus to overcome the defects of the related technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the plateau energy storage type wind-solar complementary off-grid power generation system comprises a wind energy power generation assembly, a solar battery assembly, a wind-solar complementary controller, a storage battery pack and an off-grid inverter; the wind power generation assembly is connected with the wind and light complementary controller, the solar battery assembly is connected with the wind and light complementary controller, the wind and light complementary controller is connected with the storage battery pack, and the storage battery pack is connected with the off-grid inverter.
As a further scheme of the invention: a current combiner box is arranged between the wind power generation assembly and the wind and light complementary controller, a current combiner box is arranged between the solar battery assembly and the wind and light complementary controller, the off-grid inverter is connected with an alternating current power distribution cabinet, and the alternating current power distribution cabinet is connected with a load.
As a further scheme of the invention: the wind power generation assembly comprises a wind wheel, a gear box, a wind aligning device and a tower. The wind wheel rotates under the action of wind force, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, and the generator is driven by the wind wheel shaft to rotate to generate electricity.
Wind wheel: the wind power generation device is composed of 1-3 blades, which are main parts for absorbing wind energy. When the wind wheel rotates, the blades are subjected to centrifugal force, which is a pulling force on the blades, and aerodynamic force, which bends the blades. When the wind speed is higher than the designed wind speed of the wind turbine, the wind wheel needs to be controlled to prevent the blades from being damaged. There are two methods for controlling the wind wheel:
a, deviating the wind wheel from the main direction;
b, changing the angle of the blade; and (4) utilizing a spoiler to generate resistance so as to reduce the rotating speed of the wind wheel.
A tower: in order for the wind turbine to operate at higher wind speeds, a tower is required to support the wind turbine. The tower then needs to withstand two main loads: one is the gravity of the wind turbine, which presses down on the tower; the other is drag, bending the tower in the downstream direction of the wind.
The wind alignment device comprises: the wind direction and wind speed in nature are constantly changing, and in order to obtain high wind energy utilization rate, a wind aligning device is needed for aligning the rotating surface of wind energy with the wind direction. The wind alignment device controls wind alignment by using the tail rudder; the horizontal axis of the tail wing belt rotates, and the wind wheel always faces the wind blowing direction.
As a further scheme of the invention: the solar cell module adopts a 400W A-grade solar photovoltaic module.
As a further scheme of the invention: the solar cell module comprises an aluminum frame and a cell, wherein an EVA layer is sleeved at the peripheral edge of the cell, the EVA layer is arranged on the aluminum frame through a glass layer, and a sealing strip is arranged between the aluminum frame and the glass layer; the power of the battery piece is 400W, the aluminum frame is an anodized high-quality aluminum alloy sealing frame, the junction box is waterproof in sealing, good in heat dissipation and firm in connection, the polarity of the lead is accurately and obviously marked, and the light receiving surface of the junction box has good self-cleaning capability and salt mist corrosion resistance; the EVA layer is an anti-aging EVA adhesive film, the high-transmittance low-iron solar special toughened glass has high mechanical strength of transmittance, the service life is 25 years, and the power attenuation quality guarantee period is not less than 25 years.
As a further scheme of the invention: the off-grid inverter adopts a three-phase high-frequency off-grid inverse control all-in-one machine.
As a further scheme of the invention: the off-grid inverter adopts a single-phase power frequency off-grid inverse control integrated machine.
As a further scheme of the invention: the storage battery pack adopts a lead-acid storage battery or a colloid storage battery.
Compared with the prior art, the invention has the beneficial effects that:
the energy storage type wind-solar complementary off-grid power generation system for the plateau solves the problem that no wind-solar complementary power generation system exists in the current plateau; the invention combines wind energy and solar energy to generate electricity, and fully utilizes abundant solar energy resources and wind energy resources in the plateau area, so the invention has better market prospect.
Drawings
FIG. 1 is a schematic structural diagram of an energy storage type wind-solar hybrid off-grid power generation system for plateaus;
FIG. 2 is a schematic structural diagram of a solar cell module;
FIG. 3 is a schematic structural diagram of a wind power generation assembly.
In the figure: 1-a solar cell module; 2-a current combiner box; 3-wind-solar complementary controller; 4-a battery pack; 5-off-grid inverters; 6-an alternating current power distribution cabinet; 7-load; 8-a wind power generation assembly; 11-an aluminum frame; 12-a sealing strip; 13-a glass layer; 14-EVA layer; 15-a battery piece; 81-tower; 82-a wind-facing device; and 83-wind wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention is suitable for plateau and high-altitude areas, and the load is lighting lamps, electrical equipment, water pumps and other electrical appliances. The capacity design of the photovoltaic array is based on the statistical data of solar irradiation in plateau and high-altitude areas, the energy storage battery pack can ensure that the system can be normally used under the weather condition of rainy days, the wind resistance requirement and the power generation efficiency of the photovoltaic array are comprehensively considered, and the photovoltaic array is installed in a ground fixed inclination angle mode.
Referring to fig. 1, in the embodiment of the invention, the energy storage type wind-solar hybrid off-grid power generation system for the plateau includes a wind power generation assembly 8, a solar battery assembly 1, a wind-solar hybrid controller 3, a storage battery pack 4 and an off-grid inverter 5; the wind power generation assembly 8 is connected with the wind and light complementary controller 3, the solar battery assembly 1 is connected with the wind and light complementary controller 3, the wind and light complementary controller 3 is connected with the storage battery pack 4, and the storage battery pack 4 is connected with the off-grid inverter 5.
The specific work description is as follows: the wind energy power generation assembly 8 converts wind energy into direct current, meanwhile, the solar battery assembly 1 converts solar energy into direct current, the direct current is collected through the combiner box 2, the photovoltaic controller (wind-solar complementary controller 3) charges the storage battery pack 4 and realizes charging management, and the load 7 is alternating current equipment, so that direct current of the solar battery assembly 1 or the storage battery 4 needs to be inverted into alternating current through the off-grid inverter 5 to supply power to the load.
The solar cell module matrix 1 converts solar energy into electric energy under the condition of illumination, and charges a storage battery pack 4 through a wind-solar hybrid controller 3; meanwhile, the system supplies power to an off-grid inverter 5 and an alternating current load 7 through a storage battery pack 4. The battery has an overcharge prevention function, and is charged in a PWM (pulse width modulation) mode; the off-grid inverter 5 (with ac bypass function) has a battery pack 4 over-discharge protection and power supply function.
In some embodiments: a current combiner box 2 is arranged between the wind power generation assembly 8 and the wind-solar hybrid controller 3, a current combiner box 2 is arranged between the solar battery assembly 1 and the wind-solar hybrid controller 3, the off-grid inverter 5 is connected with an alternating current power distribution cabinet 6, and the alternating current power distribution cabinet 6 is connected with a load 7.
As a further scheme of the invention: the wind power assembly 8 comprises a wind rotor 83, a gearbox, a wind alignment device 82 and a tower 81. The wind wheel 83 rotates under the action of wind force, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, and the generator rotates under the driving of the wind wheel shaft to generate electricity.
The wind wheel 83: the wind power generation device is composed of 1-3 blades, which are main parts for absorbing wind energy. When the wind wheel rotates, the blades are subjected to centrifugal force, which is a pulling force on the blades, and aerodynamic force, which bends the blades. When the wind speed is higher than the designed wind speed of the wind turbine, the wind wheel needs to be controlled to prevent the blades from being damaged. There are two methods for controlling the wind wheel:
a, deviating the wind wheel from the main direction;
b, changing the angle of the blade; and (4) utilizing a spoiler to generate resistance so as to reduce the rotating speed of the wind wheel.
The tower 81: in order to allow the rotor to operate at higher wind speeds, a tower is required to support the rotor 83. The tower 81 now needs to withstand two main loads: one is the gravity of the wind turbine, which presses down on the tower; the other is drag, bending the tower in the downstream direction of the wind.
The wind alignment device 82: the wind direction and wind speed in nature are constantly changing, and in order to obtain high wind energy utilization rate, a wind aligning device is needed for aligning the rotating surface of wind energy with the wind direction. The wind alignment device controls wind alignment by using the tail rudder; the horizontal axis of the tail wing belt rotates, and the wind wheel always faces the wind blowing direction.
In some embodiments, the current combiner box 2 is a 4-in 1-out lightning protection combiner box, that is, 1 current combiner box 2 is used for each 4 strings of solar modules. A3.2 KWP off-grid system with capacity is built, and 1 lightning protection junction box needs to be arranged.
In some embodiments, the solar cell module 1 employs a 400W A grade solar photovoltaic module. The solar cell module 1 constitutes a main component of a photovoltaic array, and converts solar radiation energy into direct current electric energy by a photoelectric effect. The solar cell module 1 with high efficiency and long service life can reduce the initial construction cost of the power station, improve the electric energy output capacity of the system under the condition of the same area, increase the service life of the power station and improve the economic benefit of the system. The service life of the solar cell module 1 is 25 years, and the solar cell module has ultraviolet aging resistance and salt mist erosion resistance.
The solar cell module 1 adopts 8 blocks, wherein 2 blocks are connected in series, and the construction scale of 3.2KWp is a photovoltaic square array. Different photovoltaic powers are combined by the same 3.2KWP photovoltaic square array. The daily generated energy is 15kWh calculated according to the sunshine duration of 6.2 hours.
Gas performance specifications of solar cell modules:
400 peak power: 400Wp peak; power voltage: 40.45V peak power electricity; current: 10.50A; open circuit voltage: 48.60V; short-circuit voltage: 9.9V; working temperature: -40 ℃ to +90 ℃; frontal maximum static load (snow load): 5400 Pa; maximum back static load (wind load): 2400 Pa; the junction box (protection grade) is not less than IP 65.
In some embodiments, as shown in fig. 2, the solar cell module 1 includes an aluminum frame 11 and a cell 15, an EVA layer 14 is sleeved at the peripheral edge of the cell 15, the EVA layer 14 is mounted on the aluminum frame 11 through a glass layer 13, and a sealing strip 12 is disposed between the aluminum frame 11 and the glass layer 13; the power of the battery piece 15 is 400W, the aluminum frame 11 is an anodized high-quality aluminum alloy sealing frame, the junction box is waterproof in sealing, good in heat dissipation and firm in connection, the polarity of the lead is accurately and obviously marked, and the light receiving surface of the junction box has good self-cleaning capability and salt spray corrosion resistance; the EVA layer 14 is an anti-aging EVA adhesive film, the high-transmittance low-iron solar special toughened glass has high transmittance mechanical strength, the service life is 25 years, and the power attenuation quality guarantee period is not less than 25 years.
In some embodiments, the battery pack 4 employs a lead-acid battery or a gel battery. The high-altitude special colloid storage battery with specification HT-OO1-200 is preferentially used in the invention, and is suitable for solar off-grid power stations, communication base stations, mobile energy storage systems, solar building systems and the like in areas with an altitude of more than 4000 meters. The execution standard is as follows: GB/T22473-2008 'lead-acid storage battery for energy storage' and IEC61427-2005 'general requirements and test methods for storage batteries for photovoltaic energy systems'. The battery performance is as follows: according to the use environment of a high-altitude area, a professional technical process is designed conventionally, so that the high-altitude area can normally operate in a high-altitude area above 4500 m and maintain excellent stability of performance; the technical design of multi-polymer point solution is adopted, and the method is suitable for normal operation in a low-temperature environment of-50 ℃ to-60 ℃; and by adopting a high-altitude pressure-resistant design, the internal components of the battery still run well in an extremely-low air pressure environment.
The technical parameters of the special colloid storage battery for high altitude are as follows: rated voltage: 12V; rated capacity: 200 AH; maximum charging current: 50A; the applicable temperature range is as follows: -50 ℃ to 60 ℃; gross weight: 55 KG.
In some embodiments, the off-grid inverter 5 is a three-phase high-frequency off-grid inverse control all-in-one machine. Preferably, the three-phase high-frequency off-grid inverse control all-in-one machine adopts an HT10K-ET three-phase high-frequency off-grid inverter.
The advantages are that: three-phase operation, the motor starts the operation more steadily, and motor and water pump drive technique application experience are light.
The product is characterized by 1, flexibility, 2, compatibility with an IEC standard three-phase asynchronous motor, 3, compatibility with a mainstream photovoltaic assembly, 4, switching to commercial power to work, 5, intelligence, 6, self-adaptive maximum power point tracking technology, efficiency of 99%, 7, self-adaptive motor power, 8, high cost performance, 9, design of an instant-use system, 10, a built-in motor water pump protection function, 11, design without a storage battery and suitability for various application occasions, 12, easiness in maintenance, 13, reliability, 14, leading motor and water pump driving technology, years of market application experience, 15, a soft start function for preventing water hammer effect and prolonging system service life, 16, a built-in intelligent IGBT module for simplifying system design and improving system reliability, 17, built-in overvoltage, overload, overheating and dry-running protection, 18, remote monitoring, 19, a standard RS-485 interface, 20, an output band isolation transformer, 21, a digital control DSP technology, 22, a powerful Chinese and English L display interface, 23, flexible CD networking, 24, commercial power compatibility with a compatible fan, 25, reliable commercial power intelligent control, 26, selectable solar charging and unbalanced solar energy output priority, and 100 percent of unbalanced.
In some embodiments, the off-grid inverter 5 adopts a single-phase power-frequency off-grid inverse control all-in-one machine; the advantages are that: (1) the system is special, energy-saving and environment-friendly in high-altitude areas, (2) the system is high in control efficiency, high in response speed and strong in impact resistance, and can be remotely controlled, and (3) the system is suitable for application of a commercial power complementary photovoltaic off-grid water pump driving technology, and can automatically convert commercial power into inversion output when the commercial power is abnormal; (4) the cost performance is relatively high.
In some embodiments, the single-phase power frequency off-grid inverse control all-in-one machine is a single-phase power frequency off-grid inverse control all-in-one machine with HT3500-12K capacity, a power frequency sine wave inverter and an MPPT solar controller are arranged in the single-phase power frequency off-grid inverse control all-in-one machine, the efficiency of the solar controller can reach 95% or more, the commercial power input range of 184-253VAC (or 155-275VAC), the output frequency of 50HZ/60HZ, the output impact resistance from 0-100% of charging current to 300% can be set, and the single-phase power frequency off-grid inverse control all-in-one machine has the functions of. The utility model can automatically convert the utility power into the inversion output when the utility power is abnormal.
The HT3500 series power frequency inverter has high overload capacity, can start a larger motor load, has completely automatic inversion functions once started, and has the product characteristics of 1 high-efficiency single-phase sine wave inversion output, 2, a built-in solar controller and a standby power-saving mode, so that the product is more energy-saving and environment-friendly, 3, a three-section mains supply charging mode, charging voltage and current can be set, 4, the response speed of the system is improved by adopting high-speed high-performance DSP control, 5, the inversion output has strong impact resistance, 6, L ED-L CD double display and 7, and has a remote startup and shutdown function.
In some embodiments, a common single-phase power frequency off-network inverse control all-in-one machine, such as a single-phase power frequency off-network inverse control all-in-one machine of HT3600-12K, is used as the single-phase power frequency off-network inverse control all-in-one machine, and has the advantages that: intelligent charging and mains supply priority.
The product is characterized in that 1, pure sine wave output with distortion rate lower than 3% can meet the electricity consumption requirements of most of devices, conversion efficiency is high, noise is low, 2, a high-performance circuit board adopts an SMT (surface mount technology) which is popular in the electronic assembly industry, and is small in size and light in weight, 3, ultra-wide input voltage with ultra-wide input voltage range, high-precision output and full-automatic voltage stabilization, 4, working modes are adopted, namely, mains supply is preferred, batteries are preferred and can be charged intelligently, 5, L CD + L ED real-time display is concise, visual, comprehensive, intelligent, L ED and intelligent digital L CD display are matched, an RS232 communication interface is supported, the machine state is convenient to observe in real time, 6, a large protection function is provided, overload, short circuit, high-low voltage, over-temperature and reverse connection protection functions are built in the buzzer sends out alarm sound when the system fails, and reliability is high.
The solar cell module 1 is installed outdoors, and when lightning occurs, the solar cell module may be invaded by lightning. In order to guarantee the safe and reliable of this equipment photovoltaic off-grid power generation system, prevent to take place because of the condition such as the damage that factors lead to system's device outside such as thunderbolt, surge, the lightning grounding device of system is indispensable. The lightning protection measures of the solar cell module mainly comprise the following steps:
1) the solar cell module 1 support is made of an aluminum alloy material, the solar cell module 1 support arrays are connected through 40-4 mm hot galvanizing flat iron, and the photovoltaic modules are enclosed into a closed system through the 40-4 mm hot galvanizing flat iron to form a photovoltaic lightning protection net;
2) the direct current input section and the alternating current output end of the off-grid inverter 5 are provided with corresponding lightning protection modules;
3) the grounding resistance of the lightning protection grounding system is less than 4 omega;
4) equipotential connection grounding is required to be done for the solar cell module bracket, the junction box, the outdoor power line shielding layer and the SPD grounding.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims (8)

1. Energy storage formula scene is complementary from net power generation system for plateau, its characterized in that: the wind-solar hybrid power generation system comprises a wind power generation assembly, a solar battery assembly, a wind-solar hybrid controller, a storage battery pack and an off-grid inverter; the wind power generation assembly is connected with the wind and light complementary controller, the solar battery assembly is connected with the wind and light complementary controller, the wind and light complementary controller is connected with the storage battery pack, and the storage battery pack is connected with the off-grid inverter.
2. The plateau energy-storage type wind-solar complementary off-grid power generation system according to claim 1, wherein: a current combiner box is arranged between the wind power generation assembly and the wind and light complementary controller, a current combiner box is arranged between the solar battery assembly and the wind and light complementary controller, the off-grid inverter is connected with an alternating current power distribution cabinet, and the alternating current power distribution cabinet is connected with a load.
3. The plateau energy-storage type wind-solar complementary off-grid power generation system according to claim 2, wherein: the wind power generation assembly comprises a wind wheel, a gear box, a wind aligning device and a tower.
4. The plateau energy-storage type wind-solar complementary off-grid power generation system according to claim 1, wherein: the solar cell module adopts a 400W A-grade solar photovoltaic module.
5. The plateau energy-storage type wind-solar complementary off-grid power generation system according to claim 1, wherein: the solar cell module comprises an aluminum frame and a cell, wherein the periphery of the cell is sleeved with an EVA (ethylene vinyl acetate) layer, the EVA layer is installed on the aluminum frame through a glass layer, and a sealing strip is arranged between the aluminum frame and the glass layer.
6. The plateau energy-storage type wind-solar complementary off-grid power generation system according to claim 1, wherein: the off-grid inverter adopts a three-phase high-frequency off-grid inverse control all-in-one machine.
7. The plateau energy-storage type wind-solar complementary off-grid power generation system according to claim 1, wherein: the off-grid inverter adopts a single-phase power frequency off-grid inverse control integrated machine.
8. The plateau energy-storage type wind-solar complementary off-grid power generation system according to claim 1, wherein: the storage battery pack adopts a lead-acid storage battery or a colloid storage battery.
CN202010275410.2A 2020-04-09 2020-04-09 Energy storage type wind-solar complementary off-grid power generation system for plateau Pending CN111490559A (en)

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