CN105406503B - A method of it is generated electricity by way of merging two or more grid systems based on solar street light power supply system - Google Patents
A method of it is generated electricity by way of merging two or more grid systems based on solar street light power supply system Download PDFInfo
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- CN105406503B CN105406503B CN201410458549.5A CN201410458549A CN105406503B CN 105406503 B CN105406503 B CN 105406503B CN 201410458549 A CN201410458549 A CN 201410458549A CN 105406503 B CN105406503 B CN 105406503B
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- 238000005286 illumination Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010248 power generation Methods 0.000 abstract description 3
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- 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
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Abstract
The invention discloses a kind of method generated electricity by way of merging two or more grid systems based on solar street light power supply system, grid-connected method includes the following steps：Street lamp grouping, a rectification, direct current output, secondary rectification, waveform adjustment and six steps such as generate electricity by way of merging two or more grid systems.The present invention can will manage concentratedly for the solar street light of city illumination, extra power secure can be effectively incorporated into national power supply grid while meeting street lighting, on the one hand traditional solar street light power generation applications narrow range is also overcomed, industry cannot be met and household electricity goes to ask and do not have the drawbacks of meeting large area, remote power-feeding ability, on the other hand solar street light generation comprehensive utilization rate is improved, its use cost is reduced, and helps to alleviate urban electricity supply pressure.
Description
Technical field
The present invention relates to a kind of method generated electricity by way of merging two or more grid systems based on solar street light power supply system, belong to the technology neck that generates electricity by way of merging two or more grid systems
Domain.
Background technology
It is with three sine wave alternating currents for main power supply mode at present in country's power supply grid, but with solar energy
The progress of generation technology, national grid powering quantity is insufficient and the reinforcement of people's environmental consciousness, on the one hand in order to meet city night
Between illuminate need, on the other hand for link urban electricity supply pressure, Solar Street Lighting System has obtained extensive popularization and use,
With the increase of solar street light usage quantity, solar power generation total amount also rapidly increases therewith, has become urban electric power
One big important sources of supply, power supply potential is huge, but since solar street light distribution is more loose, and the electricity sent out is
Direct current, therefore, its generated energy of single solar street light are difficult to effectively meet industry and household electricity needs, although can incite somebody to action
Multiple solar street lights carry out joint power supply, but since solar street light generates electricity as direct current, still can not directly meet big
The needs of most electrical equipment operations, and technology also cannot achieve low-voltage DC remote transmission at present, therefore, greatly
Limit the performance of Solar Street Lighting System power supply potential.
Invention content
This practicality goal of the invention, which is that, overcomes above-mentioned deficiency, provides a kind of based on the grid-connected hair of solar street light power supply system
The method of electricity.
To achieve the above object, the present invention is to be achieved through the following technical solutions：
A method of it is generated electricity by way of merging two or more grid systems based on solar street light power supply system, grid-connected method includes the following steps：
The first step：Street lamp is grouped, and is grouped according to the solar street light quantity in entire solar street light power supply system,
Solar street light is divided at least two power supply subsystems, wherein the total amount error that respectively averagely generates electricity between power supply subsystem is not more than
5KW/h, respectively peak power production error is not more than 5KW/h between power supply subsystem, is missed with total illumination between subsystem of respectively powering in the time
Difference is not more than 100lx~3000lx；
Second step：Rectification is filtered rectification to the direct current of power supply subsystem institute output, and to straight after rectification
Galvanic electricity centralized collection stores；
Third walks：Direct current output, according to the requirement of Alternating Current Power Supply network and the total generated output of solar street light power supply system, meter
It calculates solar street light power supply system and exports electricity general power, done jointly with one of power supply subsystem or several power supply subsystems
For main power source output system, residue power supply subsystem is as accessory power supply output system；
4th step：Secondary rectification is filtered rectification to the direct current of solar street light power supply system output, and utilizes inverse
Become device and direct current is converted into sine wave alternating current；
5th step：Waveform adjusts, and carries out waveform modulated to the sine wave alternating current converted, solar street light is made to power
The sine wave for the sine wave alternating current that the direct current that system generates is generated after inversion and power supply grid alternating current sine wave wave
Shape is consistent；
6th step：It generates electricity by way of merging two or more grid systems, national power supply grid will be accessed after the alternating current of waveform modulated is filtered.
Main power source output system exports 70% -100% that power consumption is total output electricity.
The present invention can will manage concentratedly for the solar street light of city illumination, can be while meeting street lighting
Extra power secure is effectively incorporated into national power supply grid, traditional solar street light power generation applications are on the one hand also overcomed
Narrow range, cannot meet industry and household electricity goes to ask and do not have the drawbacks of meeting large area, remote power-feeding ability, another
Aspect improves solar street light generation comprehensive utilization rate, reduces its use cost, and helps to alleviate urban electricity supply pressure.
Description of the drawings
Fig. 1 is this hair flow diagram.
Specific implementation mode
In order to facilitate understanding, below by way of specific example, the present invention will be described：
Embodiment 1：It presets altogether comprising the solar street light 1000 that hangs down in certain section solar street light power supply system, it is total to generate electricity
Capacity is 1000kw/h, and specifically the method for generating electricity by way of merging two or more grid systems includes the following steps：
The first step：Street lamp is grouped, and is grouped according to the solar street light quantity in entire solar street light power supply system,
Solar street light is divided at least three power supply subsystems, wherein the total amount error 3KW/ that averagely generates electricity between three sets of power supply subsystems
H, three sets power supply subsystems between peak power production error be not more than 1KW/h, with total illumination error between subsystem of respectively powering in the time
For 1000lx；
Second step：Rectification is filtered rectification to the direct current of power supply subsystem institute output, and direct current electrical waveform is whole
It is combined into square wave, and clutter therein is filtered, finally to being stored in accumulator to the direct current centralized collection after rectification；
Third walks：Direct current output, with two power supply subsystems jointly as main power source output system, a remaining power supply
For subsystem as accessory power supply output system, wherein main power source output system output power consumption is the 90% of total output electricity, auxiliary
Extra electricity in power supply output system is helped to continue to be stored in accumulator；
4th step：Secondary rectification is filtered rectification to the direct current of solar street light power supply system output, and utilizes inverse
Become device and direct current is converted into sine wave alternating current；
5th step：Waveform adjusts, and carries out waveform modulated to the sine wave alternating current converted, solar street light is made to power
The sine wave for the sine wave alternating current that the direct current that system generates is generated after inversion and power supply grid alternating current sine wave wave
Shape is consistent；
6th step：It generates electricity by way of merging two or more grid systems, national power supply grid will be accessed after the alternating current of waveform modulated is filtered.
Embodiment 2：It presets altogether comprising the solar street light 3500 that hangs down in certain section solar street light power supply system, it is total to generate electricity
Capacity is 35000kw/h, and specifically the method for generating electricity by way of merging two or more grid systems includes the following steps：
The first step：Street lamp is grouped, and is grouped according to the solar street light quantity in entire solar street light power supply system,
Solar street light is divided at least three power supply subsystems, wherein the total amount error 5KW/ that averagely generates electricity between five sets of power supply subsystems
H, three sets power supply subsystems between peak power production error be not more than 2KW/h, with total illumination error between subsystem of respectively powering in the time
For 2500lx；
Second step：Rectification is filtered rectification to the direct current of power supply subsystem institute output, and direct current electrical waveform is whole
It is combined into square wave, and clutter therein is filtered, finally to being stored in accumulator to the direct current centralized collection after rectification；
Third walks：Direct current output, with three power supply subsystems jointly as main power source output system, remaining two power supplies
For subsystem as accessory power supply output system, wherein main power source output system output power consumption is the 70% of total output electricity, auxiliary
Extra electricity in power supply output system is helped to continue to be stored in accumulator；
4th step：Secondary rectification is filtered rectification to the direct current of solar street light power supply system output, and utilizes inverse
Become device and direct current is converted into sine wave alternating current；
5th step：Waveform adjusts, and carries out waveform modulated to the sine wave alternating current converted, solar street light is made to power
The sine wave for the sine wave alternating current that the direct current that system generates is generated after inversion and power supply grid alternating current sine wave wave
Shape is consistent；
6th step：It generates electricity by way of merging two or more grid systems, national power supply grid will be accessed after the alternating current of waveform modulated is filtered.
Claims (2)
1. a kind of method generated electricity by way of merging two or more grid systems based on solar street light power supply system, it is characterised in that：It is described based on sun energy circuit
The method that lamp power supply system is generated electricity by way of merging two or more grid systems includes the following steps：
The first step：Street lamp is grouped, and is grouped according to the solar street light quantity in entire solar street light power supply system, will too
Positive energy streetlight is divided at least two power supply subsystems, wherein the total amount error that respectively averagely generates electricity between power supply subsystem is not more than 5KW/
H, respectively peak power production error is not more than 5KW/h between power supply subsystem, not with total illumination error between subsystem of respectively powering in the time
More than 100lx~3000lx；
Second step：Rectification is filtered rectification to the direct current of power supply subsystem institute output, and to the direct current after rectification
Centralized collection stores；
Third walks：Direct current output calculates too according to the requirement of Alternating Current Power Supply network and the total generated output of solar street light power supply system
Positive energy streetlight power supply system exports electricity general power, with one of power supply subsystem or several power supply subsystems jointly as master
Power supply output system, residue power supply subsystem is as accessory power supply output system；
4th step：Secondary rectification is filtered rectification to the direct current of solar street light power supply system output, and utilizes inverter
Direct current is converted into sine wave alternating current；
5th step：Waveform adjusts, and carries out waveform modulated to the sine wave alternating current converted, makes solar street light power supply system
The sine wave for the sine wave alternating current that the direct current of generation is generated after inversion and power supply grid alternating current sine waveform one
It causes；
6th step：It generates electricity by way of merging two or more grid systems, national power supply grid will be accessed after the alternating current of waveform modulated is filtered.
2. a kind of method generated electricity by way of merging two or more grid systems based on solar street light power supply system according to claim 1, it is characterised in that：
Main power source output system output power consumption in the third step is 70%-the 100% of total output electricity.
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| CN105576693B (en) * | 2014-11-05 | 2018-09-28 | 国家电网公司 | A method of the power supply grid based on wind and solar integrated power generation road lamp generates electricity by way of merging two or more grid systems |
Citations (2)
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|---|---|---|---|---|
| CN102612762A (en) * | 2009-10-25 | 2012-07-25 | 数字安吉尔公司 | Planar thermoelectric generator |
| CN103574477A (en) * | 2012-07-25 | 2014-02-12 | 深圳美凯电子股份有限公司 | Grid-connected photovoltaic generation based outdoor lighting system |
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| KR20080054857A (en) * | 2006-12-13 | 2008-06-19 | 엘지전자 주식회사 | Charging device using thermoelectric phenomenon and printed circuit board using the same and mobile terminal using the same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612762A (en) * | 2009-10-25 | 2012-07-25 | 数字安吉尔公司 | Planar thermoelectric generator |
| CN103574477A (en) * | 2012-07-25 | 2014-02-12 | 深圳美凯电子股份有限公司 | Grid-connected photovoltaic generation based outdoor lighting system |
Non-Patent Citations (1)
| Title |
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| 太阳能路灯***的优化设计;鞠振河;《可再生能源》;20071031;第25卷(第5期);全文 * |
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