CN103441536B - The two net Distributed Control System of local power - Google Patents

The two net Distributed Control System of local power Download PDF

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Publication number
CN103441536B
CN103441536B CN201310371692.6A CN201310371692A CN103441536B CN 103441536 B CN103441536 B CN 103441536B CN 201310371692 A CN201310371692 A CN 201310371692A CN 103441536 B CN103441536 B CN 103441536B
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China
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control
power
several
net
station
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CN201310371692.6A
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Chinese (zh)
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CN103441536A (en
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薛黎明
刘伯昂
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中海阳能源集团股份有限公司
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Publication of CN103441536A publication Critical patent/CN103441536A/en
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    • Y02E10/563
    • Y02E10/566
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention discloses the two net Distributed Control System of a kind of local power, comprise energy storage part and regulation and control portion, energy storage part comprises hydroelectric station, several supplemental powered nets and several photo-voltaic power generation stations, regulation and control portion comprises several control units, several control units are subordinated to different user end, control unit and photo-voltaic power generation station one_to_one corresponding, supplemental powered net is connected with hydroelectric station, and supplemental powered net provides electric power by hydroelectric station; Utility grid and the two net electric power system of supplemental powered net composition, during normal electricity consumption, user's termination utility grid is powered, and control unit controls photo-voltaic power generation station and is connected with hydroelectric station, utilizes the electric power of photo-voltaic power generation station to carry out pumped storage; During peak of power consumption, hydroelectric station utilizes the water level discrepancy in elevation of accumulation of energy reservoir generate electricity and access supplemental powered net, and user side switches to the power supply of supplemental powered net.The invention solves the not enough problem of electric power of Peak power use phase, the distributed operation that the solar power generation grid-connecting for wide range of users group is applied and unified management pattern provide guarantee for implement.

Description

The two net Distributed Control System of local power

Technical field

The present invention relates to many net power supply relevant apparatus, the two net Distributed Control System of especially a kind of local power.

Background technology

In the grid-connected application of usual solar power generation, what generally take is that photovoltaic electric energy inversion boosting is incorporated to the method be incorporated to and photo-thermal power generation boosts, scale due to domestic electrical network has the feature of big unification, so just relatively strict to the requirement of grid-connected electric energy, that just need the equipment of purchasing expensive therefrom.But, be applicable to non-big unification that the energy resource structure of Chinese Resources, geographical conditions and weather disperses exactly, decentralized control formula.On this external electricity consumption time, occur with the Different periods in season, a day during peak, such as: air-conditioning is electric power increasing etc. with the rising of temperature.These add all unintentionally complexity and the unsteadiness of whole electric power system, how to solve the balanced power load of trying one's best for electrical stability of peak period electrical network, become the key that industry solves a power supply difficult problem.

Summary of the invention

For prior art Problems existing, the object of the present invention is to provide a kind of for the two net Distributed Control System of local power required when local power network regulation peak and steady load.

For achieving the above object, the two net Distributed Control System of local power of the present invention, comprise energy storage part and regulation and control portion, energy storage part comprises hydroelectric station, several supplemental powered nets and several photo-voltaic power generation stations, and regulation and control portion comprises several control units, wherein, several control units are subordinated to different user end, control unit and photo-voltaic power generation station one_to_one corresponding are carried out and are controlled, and supplemental powered net is connected with hydroelectric station, and supplemental powered net provides electric power by hydroelectric station; Utility grid and the two net electric power system of supplemental powered net composition, during normal electricity consumption, user's termination utility grid is powered, and control unit controls photo-voltaic power generation station and is connected with hydroelectric station, utilizes the electric power of photo-voltaic power generation station to carry out pumped storage; During peak of power consumption, hydroelectric station utilizes the water level discrepancy in elevation of accumulation of energy reservoir generate electricity and access supplemental powered net, and user side switches to the power supply of supplemental powered net.

Further, in described pair of net electric power system, be also provided with Shuan Wang transformer station, described utility grid and Guo Shuanwang transformer station of supplemental powered Netcom switch operating mode.

Further, described energy storage part also comprises elevated reservoir, low level reservoir, several irrigate by lifting water to a higher level with a water pump, etc. pump and supplemental powered net, elevated reservoir, low level reservoir and several irrigate by lifting water to a higher level with a water pump, etc. pump and be arranged in described hydroelectric station, the power that draws water irrigating by lifting water to a higher level with a water pump, etc. pump is regulated by described control unit.

Further, described regulation and control portion also comprises DCS control system, Shuan Wang transformer station and communication network, and DCS control system is with control unit, photo-voltaic power generation station described in several described in several and be connected by communication network between Shuan Wang transformer station.

Further, during normal electricity consumption, described DCS control system sends instruction to the described control unit that has separately of each user to control respective described photo-voltaic power generation station generating, irrigates by lifting water to a higher level with a water pump, etc. pump and carry out from described low level reservoir to described elevated reservoir pumped storage described in this driven by power.

Further, during peak of power consumption, described DCS control system controls described hydroelectric station, utilizes described elevated reservoir, the water level discrepancy in elevation of low level reservoir generates electricity and access described supplemental powered net, power to user side.

Further, control unit described in several and photo-voltaic power generation station described in several and several described in irrigate by lifting water to a higher level with a water pump, etc. pump one_to_one corresponding and carry out and control.

Further, described supplemental powered net provides electric power by described hydroelectric station, by user full load implement stable power-supplying, the generating capacity in described hydroelectric station, the retaining of described high-low position reservoir can with user's power consumption matched design.

Further, described DCS control system implements generating, electricity consumption, the account management of pumped storage and record to all described control units and user side thereof, in a certain, high-power electric appliance is when being about to close, the process of described DCS control system is sent to through described communication network operation requirements, through described communication network, control command is reached described control unit again, and described control unit start by the power consumption of closed electrical equipment described in irrigate by lifting water to a higher level with a water pump, etc. pump and draw water and carry out power back-off.

Further, described DCS control system controls supplemental powered net associating described in several or takes turns to operate, by pumped storage and power back-off overall arrangement.

The two net Distributed Control System of local power of the present invention mainly solves the not enough problem of electric power of Peak power use phase, and the distributed operation that the solar power generation grid-connecting for wide range of users group is applied and unified management pattern provide guarantee for implement.

Accompanying drawing explanation

Fig. 1 is Control System NetWork schematic diagram of the present invention;

Fig. 2 is general arrangement of the present invention and connects operating diagram.

Embodiment

Below, with reference to accompanying drawing, the present invention is more fully illustrated, shown in the drawings of exemplary embodiment of the present invention.But the present invention can be presented as multiple multi-form, and should not be construed as the exemplary embodiment being confined to describe here.But, these embodiments are provided, thus make the present invention comprehensively with complete, and scope of the present invention is fully conveyed to those of ordinary skill in the art.

For ease of illustrating, here can use such as " on ", the space relative terms such as D score " left side " " right side ", for illustration of the element of shown in figure or the feature relation relative to another element or feature.It should be understood that except the orientation shown in figure, spatial terminology is intended to comprise device different azimuth in use or operation.Such as, if the device in figure is squeezed, be stated as the element being positioned at other elements or feature D score will be positioned at other elements or feature " on ".Therefore, exemplary term D score can comprise upper and lower both orientation.Device can otherwise be located (90-degree rotation or be positioned at other orientation), and space used here illustrates relatively can correspondingly explain.

Power back-off illustrates: in order to make supply network steady operation, necessarily require all electricity consumption load power consumption to remain unchanged, other electrical appliance work that just must start corresponding power when there being high-power electric appliance to close remains unchanged to keep electricity consumption load power consumption; In this case, use is irrigated by lifting water to a higher level with a water pump, etc. pump and is substituted high-power electric appliance work to keep the power of whole network load constant, also reaches the effect of pumping storage simultaneously.

As shown in Figure 1, 2, the two net Distributed Control System of local power of the present invention, comprise energy storage part and regulation and control portion, wherein, energy storage part comprises elevated reservoir 1, low level reservoir 2, several photo-voltaic power generation stations 3, several irrigate by lifting water to a higher level with a water pump, etc. pump 4, hydroelectric station 5, supplemental powered net 6 etc., elevated reservoir 1, low level reservoir 2 and several irrigate by lifting water to a higher level with a water pump, etc. that pump 4 is all supporting to be arranged in hydroelectric station 5.Regulation and control portion is provided with DCS control system 8, several control units 9, Shuan Wang transformer station 10, communication network 11 etc.

Several control units 9 and several photo-voltaic power generation stations 3 and several are irrigated by lifting water to a higher level with a water pump, etc. pump 4 one_to_one corresponding and are carried out and control, and several control units 9 are subordinated to different user.DCS control system 8 is with control unit described in several 9, photo-voltaic power generation station 3 described in several and be connected by communication network 11 between Shuan Wang transformer station 10.

Supplemental powered net 6 provides electric power by hydroelectric station 5, and supplemental powered net 6 is set to implement stable power-supplying, the water-holding capacity in hydroelectric station 5 and user's power consumption matched design by the full load of user side 7.In addition, the two net Distributed Control System of local power of the present invention also can be placed through a DCS control system 8 and controls several supplemental powered nets 6 and combine or take turns to operate, by pumped storage and power back-off overall arrangement.

In the present invention, utility grid 12 and supplemental powered net 6 form two net electric power system, utility grid 12 and supplemental powered net 6 are in Shuan Wang transformer station 10 switch operating mode, user pulls and connects utility grid 12 at ordinary times, pump 4 pumped storage is irrigated by lifting water to a higher level with a water pump, etc. in photo-voltaic power generation station 3 driving that generates electricity, when user side 7 is switched to supplemental powered net 6 by the peak of power consumption of civil power temporarily.During normal electricity consumption, DCS control system 8 sends instruction and generates electricity to control respective photo-voltaic power generation station 3 to the control unit 9 that has separately of each user, and this driven by power is irrigated by lifting water to a higher level with a water pump, etc. pump 4 and carried out from low level reservoir 2 to elevated reservoir 1 pumped storage.During peak of power consumption, DCS control system 8 controls that hydroelectric station 5 utilizes elevated reservoir 1, the water level discrepancy in elevation of low level reservoir 2 generates electricity and accesses supplemental powered net 6, powers to user side 7.

DCS control system 8 implements generating, electricity consumption, the account management of pumped storage and record to all control units 9 and user side 7 thereof.

Such as: in a certain, high-power electric appliance is when being about to close, send to DCS control system 8 processing immediately through communication network 11 operation requirements, then through communication network 11 control command reached control unit 9 again and to be started by the power consumption of closed electrical equipment by this unit and irrigate by lifting water to a higher level with a water pump, etc. pump 4 and draw water and carry out power back-off.

The two net Distributed Control System of local power of the present invention solves the not enough problem of electric power of Peak power use phase, for the power grid user possessing the certain nominal load of hydraulic energy storage, two net switch operating and power back-off mode is adopted to stablize the power supply capacity of electrical network, and improve user to the degree of participating in directly of pumped storage simultaneously, also improve the utilization ratio of hydraulic energy storage, for the distributed operation of wide range of users group and unified management pattern provide guarantee for implement simultaneously.

Claims (1)

1. the two net Distributed Control System of local power, it is characterized in that, comprise energy storage part and regulation and control portion, energy storage part comprises hydroelectric station, several supplemental powered nets and several photo-voltaic power generation stations, and regulation and control portion comprises several control units, wherein, several control units are subordinated to different user end, control unit and photo-voltaic power generation station one_to_one corresponding are carried out and are controlled, and supplemental powered net is connected with hydroelectric station, and supplemental powered net provides electric power by hydroelectric station; Supplemental powered net and the two net electric power system of utility grid composition, during normal electricity consumption, user's termination utility grid is powered, and control unit controls photo-voltaic power generation station and is connected with hydroelectric station, utilizes the electric power of photo-voltaic power generation station to carry out pumped storage; During peak of power consumption, hydroelectric station utilizes the water level discrepancy in elevation of accumulation of energy reservoir generate electricity and access supplemental powered net, and user side switches to the power supply of supplemental powered net;
Shuan Wang transformer station is also provided with, described utility grid and Guo Shuanwang transformer station of supplemental powered Netcom switch operating mode in described pair of net electric power system;
Described energy storage part also comprises elevated reservoir, low level reservoir, several irrigate by lifting water to a higher level with a water pump, etc. pump and supplemental powered net, elevated reservoir, low level reservoir and several irrigate by lifting water to a higher level with a water pump, etc. pump and be arranged in described hydroelectric station, the power that draws water irrigating by lifting water to a higher level with a water pump, etc. pump is regulated by described control unit;
Described regulation and control portion also comprises DCS control system, Shuan Wang transformer station and communication network, and DCS control system is with control unit, photo-voltaic power generation station described in several described in several and be connected by communication network between Shuan Wang transformer station;
During normal electricity consumption, described DCS control system sends instruction to the described control unit that has separately of each user to control respective described photo-voltaic power generation station generating, irrigates by lifting water to a higher level with a water pump, etc. pump and carry out from described low level reservoir to described elevated reservoir pumped storage described in this driven by power;
During peak of power consumption, described DCS control system controls described hydroelectric station, utilizes described elevated reservoir, the water level discrepancy in elevation of low level reservoir generates electricity and access described supplemental powered net, power to user side;
Control unit described in several and photo-voltaic power generation station described in several and several described in irrigate by lifting water to a higher level with a water pump, etc. pump one_to_one corresponding and carry out and control;
Described supplemental powered net provides electric power by described hydroelectric station, by user full load implement stable power-supplying, the generating capacity in described hydroelectric station, the retaining of described high-low position reservoir can with user's power consumption matched design;
Described DCS control system implements generating, electricity consumption, the account management of pumped storage and record to all described control units and user side thereof, in a certain, high-power electric appliance is when being about to close, the process of described DCS control system is sent to through described communication network operation requirements, through described communication network, control command is reached described control unit again, and described control unit start by the power consumption of closed electrical equipment described in irrigate by lifting water to a higher level with a water pump, etc. pump and draw water and carry out power back-off;
Described DCS control system controls supplemental powered net associating described in several or takes turns to operate, by pumped storage and power back-off overall arrangement.
CN201310371692.6A 2013-08-23 2013-08-23 The two net Distributed Control System of local power CN103441536B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103956962A (en) * 2014-05-15 2014-07-30 无锡同春新能源科技有限公司 Power supply device for establishing solar photovoltaic power station and hydroelectric power station integrally in reservoir

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101656423A (en) * 2009-09-29 2010-02-24 河北农业大学 Light-wind-water complementary type water pumping and energy storing power generation peak adjusting device
CN202453723U (en) * 2012-02-10 2012-09-26 四川钟顺太阳能开发有限公司 DCS of solar photovoltaic power station
CN203674733U (en) * 2013-08-23 2014-06-25 中海阳能源集团股份有限公司 Local electric power supply dual-network distributed control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101656423A (en) * 2009-09-29 2010-02-24 河北农业大学 Light-wind-water complementary type water pumping and energy storing power generation peak adjusting device
CN202453723U (en) * 2012-02-10 2012-09-26 四川钟顺太阳能开发有限公司 DCS of solar photovoltaic power station
CN203674733U (en) * 2013-08-23 2014-06-25 中海阳能源集团股份有限公司 Local electric power supply dual-network distributed control system

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