CN2874896Y

CN2874896Y - Large solar energy photovoltaic generator

Info

Publication number: CN2874896Y
Application number: CNU2006200010983U
Authority: CN
Inventors: 张祈泰
Original assignee: 张祈泰
Current assignee: Hu'nan Golden Sun Photovoltaic power generation technology Co., Ltd.
Priority date: 2006-01-20
Filing date: 2006-01-20
Publication date: 2007-02-28
Anticipated expiration: 2016-01-20

Abstract

The utility model relates to a large-scale solar photovoltaic power generating device. In power line, power is generated and directly connected into grid by grid-connecting system. The grid-connecting system is an independent 1MWP system including five 200KWP power generating units, and a 1000KVA step-up transformer. Each power generating unit is composed of a 200KWP assembly, and a joint box connected with the 200KVA grid-connecting inverter to output 0.4KV three-phase AC power supply. The 1MWP grid-connecting photovoltaic power generating system is formed by connecting the above power generating units in parallel, and outputs power by sequentially connecting with inverter, 0.4KV lower-voltage distribution cabinet, and transformer.

Description

The large solar photovoltaic Blast Furnace Top Gas Recovery Turbine Unit (TRT)

Technical field

The utility model relates to solar energy photovoltaic generator, belongs to International Classification of Patents H02J7/00 " electric energy storage system " technical field.

Background technology

Solar energy photovoltaic generator has photoelectricity (silicon photocell) array and charging energy storage control two large divisions.Present photovoltaic generating system, with regard to the consideration of its practicality, aspect such as exemplary, experimental, device of the prior art still is difficult to meet the demands.

The utility model content

The purpose of this utility model is to provide a kind of large solar photovoltaic Blast Furnace Top Gas Recovery Turbine Unit (TRT) with reliability, practicality and flexibility.

The technical solution of the utility model is as follows.

A kind of large solar photovoltaic Blast Furnace Top Gas Recovery Turbine Unit (TRT) is on electric circuit, adopts the grid-connected system direct generation of electricity to be incorporated into the power networks, and this grid-connected system is 1 independently 1MWP system, and this 1MWP subsystem comprises the generator unit of 5 200KWP, and the step-up transformer of 1 1000KVA.Each generator unit connects the junction box by the 200KWP assembly, and the junction box connects the combining inverter of 200KVA and forms, the three-phase alternating current of output 0.4KV.

Described 1MWP grid-connected photovoltaic power generation subsystem is parallel with one another by above-mentioned single generator unit, is connected with inverter then, to the 0.4KV low-voltage distribution cabinet, is connected with transformer, then output again.

The utility model device has comprised structure and the design that large photoelectric field, photovoltaic generation, photoelectricity conversion, photoelectricity are incorporated into the power networks, and it is reasonably arranged, and is complementary with every engineering specifications, has reached advanced technology, the economic worth height.

Description of drawings

Fig. 1 is the theory diagram of single generator unit;

Fig. 2 is the theory diagram of 1MWP grid-connected photovoltaic power generation system;

Fig. 3 is single-side stand square formation face assembly row figure;

Fig. 4 is the photovoltaic array layout plan of 200KWP;

Fig. 5 is the floor plan full figure of 8MWP grid-connected photovoltaic power generation system optical electric field.

Embodiment

Shown in above-mentioned each Fig. 1-5: the solar energy photovoltaic generator structure comprises: on electric circuit, grid-connected system is 1 independently 1MWP system, and the direct generation of electricity is incorporated into the power networks; The 1MWP subsystem comprises the generator unit of 5 200KWP, the step-up transformer of a 1000KVA; Each generator unit is by the 200KWP assembly, and the 200KVA combining inverter is formed, output 0.4KV three-phase alternating current.

The technical characterstic of solar energy photovoltaic generator is as follows: the generator unit of 200KWP, and can directly incorporate the low voltage electric network power supply into, or incorporate high-voltage fence into through transformer; Subsystem can be distinguished construction and reach operation maintenance management independently, can not influence the operation of whole system.

The chief component of solar energy photovoltaic generator, form by following each several part:

1, photovoltaic array: comprise the PV assembly, supporting structure (support and basis etc.), junction box, cable and wire etc.;

2, direct current, ac converter equipment: comprise direct current cabinet, power distribution cabinet, combining inverter etc.;

3, the facility that is incorporated into the power networks that boosts: comprise step-up transformer, outdoor vacuum circuit breaker, high-voltage arrester etc.;

4, control detection system: comprise system's control, Data Detection and processing and display system, remote information exchange etc.;

5, affiliated facility: lightning protection and ground protection, factory building and office, fence, passage and road, cleaning equipment etc.

Capital equipment and specification requirement:

1. solar module: preferentially select the crystalline silicon assembly for use, other assemblies on probation in right amount;

2. supporting structure: enough intensity and certain antiseptic property;

3. combining inverter: have maximal power tracing (MPPT) function, output three-phase 0.4KV alternating current, efficient＞95%;

4. step-up transformer: voltage 0.4KV/35KV, capacity 1000KVA;

5. control detection and remote information exchange:

1) collection and record related data, as meteorological data, unit for electrical property parameters and operating state etc.; 2) carry out relevant control operation, as suit inverter, solar cell array, and the tracking Control of square formation etc.; 3) automatic protection functions of the system failure, record is also preserved fault message, sends alarm signal; 4) remote information such as remote control, remote measurement function of exchange.

6. machine room and office: place various indoor equipmenies and good ventilation arranged,, daylighting and the anti-dust storm of cold-proof heat insulation etc.

7. lightning protection and ground protection: DC side and AC side all need ground protection, solar radiation that must not the shading light electric field.

8. place road: be convenient to Installation and Debugging and operation maintenance and cleaning.

9. protective fence: enough height and intensity; Solar radiation that must not the shading light electric field.

Embodiment:

1, capital equipment option:

1) solar module is selected homemade 160WP polycrystalline silicon solar cell assembly for use.

2) combining inverter: select efficient＞95% for use, the imported product of dependable performance, rated capacity is 200KW.

3) ac step-up transformer: the homemade transformer of selecting 0.4KV/35KV, 1000KV for use.

2, solar cell array design:

1) assembly series-parallel connection: the series connection of 18 block assemblies is 1 tunnel, one generator unit 70 tunnel, and capacity in parallel is 201.6KWP;

2) supporting structure design: install in fixed due south, 40 ° at support inclination angle, 6.5 meters of front and rear row column array spacings.

3) the optical electric field solar battery array is arranged: single-side stand square formation face arrangements of components is seen Fig. 3; The 200KWP unit block is installed on 35 supports, and Fig. 4 is seen in floor space=14.5 meter * 320 meters; The photovoltaic generation of 1MWP comprises 5 200KWP generator units, takes up an area of the gross area=72.5 meter * 320 meters; Form with 8 1MWP subarrays, be independent photovoltaic generating field (or station), about 210,000 square metres of floor space; This apparatus structure can be formed 2 1MWP subarrays, 4 1MWP subarrays, 8 1MWP subarrays.16 1MWP subarrays, 24 1MWP subarrays, 32 1MWP subarrays etc.

3, lightning-arrest, lightning protection and Ground protection design:

1) because the photovoltaic array support itself is exactly a metallic conductor, should note support reliably is connected with grounding system independently, can reach lightning protection effect.Lightning rod can be installed by place building and transformer station, handles routinely.

2) DC side of electrical network circuit and AC side will be taken measures respectively, use the lightning arrester of different capabilities and electric pressure etc., make equipment exempt from superpotential damage.

3) to protect topmost requirement be that earth resistance is little in system earth.Must note, higher as the soil layer resistivity of punja, should take multiple measure to reduce earth resistance.The structure general assembly design of 8 1MWP grid-connected photovoltaic generating devices of optical electric field arranged in arrays:

1) solar module: select homemade polysilicon assembly for use, power 160WP, weight 15KG amounts to 50,400 block assemblies, nominal capacity 8.064MWP, 756 tons of assembly total weights.

2) combining inverter: imported product, rated capacity 200KW, weight 1400KG amounts to 40, total capacity 8,000KKW, 56 tons.

3) ac step-up transformer: homemade 0.4KV/35KV power transformer, capacity 1000KVA, totally 8 parallel connections.

4) photovoltaic array: fixed towards due south installation, 40 ° at inclination angle.

5) amount to 1400 assembly supports, 840 tons of support steel gross weights.

6) 16,800 bracket basis altogether.

7) system's gross area is about 300,000 square metres, and wherein, photovoltaic array takes up an area of about 210,000 square metres.

8) system's average annual energy output 1280 ten thousand KWH, 3.5 ten thousand KWH generate electricity average every day.

Solar module nominal total capacity 1MWP is composed in series by 5 200KWP, i.e. 5 18 block assembly series connection, unit 70 tunnel parallel connections.

The inclination angle of the fixed installation of photovoltaic array is 36 °-42 °, about 300,000 square metres of total floor space.

The subsystem of 1MWP comprises the generator unit of 5 200KWP, 72.5 meters * 320 meters of floor spaces.

Claims

1, a kind of large solar photovoltaic Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is characterized in that: be on electric circuit, adopt the grid-connected system direct generation of electricity to be incorporated into the power networks, this grid-connected system is 1 independently 1MWP system, this 1MWP subsystem comprises the generator unit of 5 200KWP, and the step-up transformer of 1 1000KVA; Each generator unit connects the junction box by the 200KWP assembly, and the junction box connects the combining inverter of 200KVA and forms, the three-phase alternating current of output 0.4KV.

2, large solar photovoltaic Blast Furnace Top Gas Recovery Turbine Unit (TRT) according to claim 1, it is characterized in that: described 1MWP grid-connected photovoltaic power generation subsystem is parallel with one another by above-mentioned single generator unit, is connected with inverter then, to the 0.4KV low-voltage distribution cabinet, be connected, export with transformer again.