CN102185370A - Solar comprehensive energy-saving system for station-service power of power station - Google Patents
Solar comprehensive energy-saving system for station-service power of power station Download PDFInfo
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- CN102185370A CN102185370A CN2011100808556A CN201110080855A CN102185370A CN 102185370 A CN102185370 A CN 102185370A CN 2011100808556 A CN2011100808556 A CN 2011100808556A CN 201110080855 A CN201110080855 A CN 201110080855A CN 102185370 A CN102185370 A CN 102185370A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The invention discloses a solar comprehensive energy-saving system for station-service power of a power station. In the system, an outgoing line of a solar generating device is connected with a station-service power system of the conventional thermal power generating or atomic energy generating set, and the requirement on a station-service power load is met preferentially by using solar energy, so that the station-service power rate of the conventional generating set is lowered; the system can be designed as an emergency power supply system of the conventional generating set, so that a comprehensive energy-saving effect is achieved, and a side effect caused by direct access of the conventional large-power solar generating set to a power grid is avoided.
Description
Technical field
The present invention relates to a kind of power station energy conserving system, specifically is a kind of power station station service solar energy composite energy conserving system, belongs to the electrical engineering field.
Background technology
In the primary energy structure of China, fossil fuel proportions such as coal reach more than 70%.The thermal power plant ratio in the capacity of installed generator at home also surpasses 60%, and according to statistics, there is electric power more than 40% in the whole world approximately from fossil fuels such as coals; Simultaneously, the atomic power plant also is present a kind of in the world main electrical production form.Although the ratio of various regenerative resources such as wind energy, solar energy is progressively improving, in one quite long from now on period, conventional power generation usage stations such as thermal power generation and nuclear electric power generation will be chief components of global power industry.
The pay attention to day by day of the greenhouse effect problem that the carbon dioxide that the thermal power plant that uses fossil fuel is discharged along with the national governments and the public causes, improve the efficient of generating set and reduce pollutant emission and just become a vital problem of thermal power plant survival and development from now on, simultaneously, because the serious accident that nuclear leakage etc. jeopardizes Environmental security and human survival appears in the atomic power plant of states such as the United States, Russia, day in succession, the public has also restricted further developing of atomic power plant to its safe worry.
And in the extensive utilization of regenerative resources such as present solar energy and wind energy, one of maximum problem is exactly its uncertainty with environment, weather and time, the unstable energy output that these regenerative resources directly insert electrical network to be brought can cause tremendous influence to the operation and the safety of whole electrical network, must adapt to the direct networking and the scheduling problem of these generation of electricity by new energy units by costly intelligent grid transformation and upgrading.And being introduced the conventional power generation usage station, various regenerative resources realize synthesis energy saving; not only for (thermal power generation or nuclear electric power generation unit) energy-saving and emission-reduction of conventional power generation usage unit and safety guarantee provide a new road, also can be the most convenient and realize the scale utilization of regenerative resources such as solar energy effectively.
Summary of the invention
The technical problem to be solved in the present invention is a kind of power station station service solar energy composite energy conserving system, exert oneself and the conventional power plant station service is loaded by the rational Match device of solar generating, thereby overcome the deficiency of existing solar utilization technique, obtain tangible synthesis energy saving effect.
Technical scheme of the present invention is specifically by adopting one to link to each other with conventional power generation usage unit 1 auxiliary bus bar system 2, realize by device of solar generating 4, energy storage device 7, its power supply buses 5 and energy-saving control device 8, promptly in the station service bus-bar system 2 of conventional power generation usage unit, increase by one section station service power supply buses 5 by device of solar generating 4 feeds, its outlet voltage is identical with station service bus 2, and by energy-saving control device 8 its bar coupler 6 of control and energy storage devices 7, thereby be station service load 3 power supplies of conventional thermal power generation unit 1.
Design feature according to conventional power generation usage unit station service load 3, power supply buses 5 can design the back-up source as station service bus 2, finishing power supply by bar coupler 6 and energy-saving control device 8 switches, also can be designed as one section independent station service bus, its station service that articulates load 3 can be fully by device of solar generating 4 and energy storage device 7 power supplies.
The ward and the building surface that adopt the device of solar generating 4 that has solar photovoltaic technology now can fully be beneficial to conventional power plant arrange that the electric energy of its generation provides electric energy by power supply buses 5 and energy storage device 7 for station service load 3.
Design has signaling interface to get in touch between energy-saving control device 8 and the conventional power generation usage unit supervisory control system, thus real time datas such as acquisition unit load; Simultaneously, but energy-saving control device 8 is the signals such as supply power voltage of collection in worksite device of solar generating 4 also, after handling via energy-saving control device 8, and the control command of output bar coupler 6 and energy storage device 7, according to the principle of preferentially utilizing solar energy, obtain maximum energy-saving effect.
When power supply buses 5 during as independent station service bus, device of solar generating 4 and and energy storage device 7 can also be designed to the emergency power supply of conventional power plant station service load 3.At this moment, device of solar generating 4 and and energy storage device 7 can adopt Redundancy Design.
The invention has the beneficial effects as follows compared with prior art, adopted solar powered station service bus-bar system to be used as realizing the energy saving optimizing of conventional power plant and as the regulating measure and the backup unit of safety guarantee, made full use of exert oneself the two synchronous characteristic of conventional power plant discontinuous workload demand and device of solar generating, maximally utilise solar energy the station service load is provided, thereby reduced the station service power consumption rate of conventional power plant, improved the safety assurance ability of conventional power plant station service electrical system.For the effective application that improves conventional power plant operational efficiency and solar energy provides a new solution.
Description of drawings
Fig. 1 is the structure chart of the present invention when being used as station service bus back-up source scheme;
Fig. 2 is the structure chart of the present invention when adopting station service bus emergency power supply scheme.
Embodiment
According to Fig. 1, Fig. 2 embodiments of the invention are elaborated below, embodiment is being to implement under the prerequisite and provided concrete execution mode with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1: solar powered bus is as the station service back-up source:
As shown in Figure 1, power station station service solar energy composite energy conserving system in the present embodiment is made up of conventional power generation usage unit 1, station service bus-bar system 2, station service load 3 and device of solar generating 4, energy storage device 7 and power supply buses 5 etc., the embodiment of the invention one is characterised in that between conventional power generation usage unit station service bus 2 and solar powered bus 5 and is provided with bar coupler 6, and control it by energy-saving control device 8 and close the charging and the feed of branch and energy storage device 7, by preferentially utilizing device of solar generating power supply, thereby reach the purpose that reduces station service power consumption rate.
Because device of solar generating 4 is subject to factor affecting such as external environment, weather and time, therefore, the station service load 3 that is articulated on the station service bus-bar system 2 has intermittence, reserve and energy storage feature, as station-service air compressor machine, small pump.Its running time and load can be adjusted according to the instant ability of device of solar generating, according to the principle of preferential use solar energy, provide the station service 3 required station services of loading by power supply buses 5.
In this real-time example, energy-saving control device 8 designs can be passed through the integrated control of the supervising device realization of DCS to auxiliary bus bar system 2 electric equipments among bar coupler 6 and the DCS as the functional subsystem of generating set scattered control system DCS.
Embodiment 2: solar powered bus is as the station service emergency power supply:
According to shown in Figure 2, power station station service solar energy composite energy conserving system in the present embodiment is made up of conventional power generation usage unit 1, station service electrical system 2, station service load 3 and device of solar generating 4, energy storage device 7 and power supply buses 5 etc., the embodiment of the invention two is characterised in that between the station service bus 2 of conventional power generation usage unit and solar powered bus 5 and is provided with bar coupler 6, and by energy-saving control device 8 control it closes branch, can the redundant power supply buses 5 that is provided with and energy storage device 7 as the emergency power supply of station service bus-bar system 2.When unit normally moves, station service load 3 is by conventional power generation usage unit 1 and 2 power supplies of station service bus-bar system, when the unit fault was stopped transport, energy-saving control device 8 is closing bus bar interconnection switch 6 fast, ensured the emergency operating of station service load 3 by device of solar generating 4 and energy storage device 7.This design can replace the function of present expensive diesel generating set security system.And, further improved the security reliability of system owing to Redundancy Design.
In the present embodiment, energy-saving control device 8 is designed to independently error-tolerance type high-speed figure control device, compares with generating set scattered control system DCS to have higher electric fault breaking capacity and cut function soon with what realize bar coupler 6.Simultaneously have bi-directional communication interface with DCS, the real time data that can obtain DCS is to finish the control that bar coupler 6 closes branch and respective electric primary equipment.
Claims (5)
1. power station station service solar energy composite energy conserving system, comprise conventional power generation usage unit 1 and station service bus-bar system 2 thereof, device of solar generating 4 and power supply buses 5 thereof, it is characterized in that: the power supply buses 5 output voltage grades of device of solar generating 4 are identical with the station service bus-bar system 2 of conventional power generation usage unit 1, can be by bar coupler 6 to 2 power supplies of conventional power generation usage unit 1 auxiliary bus bar system, simultaneously can provide energy storage and power supply for energy storage device 7, the two realizes control by energy-saving control device 8, according to station service load 3 power supplies that preferentially utilize device of solar generating 4 to finish to articulate on conventional power generation usage unit 1 station service bus-bar system 2;
2. power station as claimed in claim 1 station service solar energy composite energy conserving system, it is characterized in that: the power supply buses system 5 of device of solar generating 4 is as one section independent power supply of station service bus-bar system 2, its station service that articulates load 3 is for having the equipment of intermittent duty, standby or energy storage feature, can adapt to the cyclic fluctuation of device of solar generating load, and reduce station service power consumption rate according to the principle of preferential use solar energy;
3. a kind of power station as claimed in claim 1 station service solar energy composite energy conserving system, it is characterized in that: device of solar generating 4, energy storage device 7 and power supply buses 5 thereof are as the reserve emergency power supply of conventional power generation usage unit 1, when condition satisfied, station service load 3 provided emergency power supply by this power supply;
4. power station as claimed in claim 1 station service solar energy composite energy conserving system, it is characterized in that, energy-saving control device 8 is an independent numeric type control system that is provided with, and with the diffusing control system DCS design of conventional generator component the signaling interface that can carry out the real time data two-way communication is arranged;
5. power station as claimed in claim 1 station service solar energy composite energy conserving system is characterized in that energy-saving control device 8 is a functional subsystem of conventional power generation usage unit 1 unit supervisory control system, adopts identical soft, hardware, to realize the integrated control of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100808556A CN102185370A (en) | 2011-03-30 | 2011-03-30 | Solar comprehensive energy-saving system for station-service power of power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100808556A CN102185370A (en) | 2011-03-30 | 2011-03-30 | Solar comprehensive energy-saving system for station-service power of power station |
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| CN102185370A true CN102185370A (en) | 2011-09-14 |
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| CN2011100808556A Pending CN102185370A (en) | 2011-03-30 | 2011-03-30 | Solar comprehensive energy-saving system for station-service power of power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571861A (en) * | 2018-06-06 | 2019-12-13 | 电力规划总院有限公司 | method and device for determining output electric quantity of generator set |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971035A (en) * | 2005-11-24 | 2007-05-30 | 李钊明 | Wind electric power generation and power network complementation method |
| CN101609985A (en) * | 2008-06-18 | 2009-12-23 | 上海太阳能科技有限公司 | 15KW and following photovoltaic plant and civil power manual switchover circuit |
| CN201398094Y (en) * | 2009-04-15 | 2010-02-03 | 昆明航太科技有限公司 | Solar photovoltaic and commercial power complementary device with alternating current and direct current dual-mode output |
-
2011
- 2011-03-30 CN CN2011100808556A patent/CN102185370A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971035A (en) * | 2005-11-24 | 2007-05-30 | 李钊明 | Wind electric power generation and power network complementation method |
| CN101609985A (en) * | 2008-06-18 | 2009-12-23 | 上海太阳能科技有限公司 | 15KW and following photovoltaic plant and civil power manual switchover circuit |
| CN201398094Y (en) * | 2009-04-15 | 2010-02-03 | 昆明航太科技有限公司 | Solar photovoltaic and commercial power complementary device with alternating current and direct current dual-mode output |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571861A (en) * | 2018-06-06 | 2019-12-13 | 电力规划总院有限公司 | method and device for determining output electric quantity of generator set |
| CN110571861B (en) * | 2018-06-06 | 2021-03-30 | 电力规划总院有限公司 | Method and device for determining output electric quantity of generator set |
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Application publication date: 20110914 |