CN104092246A - Compound grid system generating electricity through tidal current energy and electric energy distribution method thereof - Google Patents
Compound grid system generating electricity through tidal current energy and electric energy distribution method thereof Download PDFInfo
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- CN104092246A CN104092246A CN201410361514.XA CN201410361514A CN104092246A CN 104092246 A CN104092246 A CN 104092246A CN 201410361514 A CN201410361514 A CN 201410361514A CN 104092246 A CN104092246 A CN 104092246A
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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
- 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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
Abstract
The invention discloses a compound grid system generating electricity through tidal current energy. The compound grid system generating electricity through tidal current energy comprises a microgrid subsystem composed of an intermittent energy electricity generation system, an energy storage system and a local load. The compound grid system generating electricity through tidal current energy further comprises a tidal current energy electricity generation system and an external power grid system which are merged into the microgrid subsystem. The invention provides an electric energy distribution method of the compound grid system under various operating states. By means of the multi-energy complement electric energy distribution method, electricity needs of islands or coastal areas with poor electricity supply capacity can be ensured, external grids can be supplied with electricity when energy is surplus so that certain economic benefits can be obtained, and the method is of great significance in economical development of coasts and islands. A tidal current energy electricity generation device is installed on a pier of an existing bridge in an attached mode and can be moved to the position above the water surface when the tidal current energy electricity generation device breaks down, the cost of a unit foundation can be avoided or greatly lowered, and maintenance of the tidal current energy electricity generation device is facilitated.
Description
Technical field
The present invention relates to marine tidal-current energy technical field of power generation, particularly relate to a kind of compound network system and power distribution method thereof of utilizing marine tidal-current energy generating.
Background technology
Marine tidal-current energy generating is the technology of utilizing the kinetic energy power generation of trend, generally without building a dam, has advantages such as environmental impact are little, is paid close attention to widely in recent years, and the development of marine tidal-current energy generation technology is very fast.
At present the system of the energy supply of powering under outlying district and isolated island condition is mostly the micro-grid system of the type of providing multiple forms of energy to complement each other, for example patent application (application number: 201310264451.1, within open day, be 2013.9.18) in the one stand alone generating system of providing multiple forms of energy to complement each other is disclosed, comprise solar power generation unit, wind-power generation unit, Wave-energy generating unit, biomass power generation unit, diesel engine generator, power control unit, sea water desalting equipment and monitoring unit.The system equipment that may generate electricity has only been combined in this invention, the various working of correlation combiner is not described and does not set up and the associated of external electrical network and feedback.And this invention medium wave wave energy generating set adopts buoyancy pendulum plate form, and pendulum plate bottom is hinged on sub sea location, and installation cost is high, and is unfavorable for safeguarding.The island power station load distribution technique of providing multiple forms of energy to complement each other is disclosed in Harbin Engineering University's master thesis in 2012 research of power station load distribution technique " the typical island provide multiple forms of energy to complement each other " (author: Zhaoyang), only single many resources of micro-grid system mode of operation and conversion are described and are illustrated, equally to not relating to the associated of external electrical network and feedback under multiple limiting condition.
As can be seen here, the above-mentioned existing stand alone generating system of providing multiple forms of energy to complement each other of utilizing marine tidal-current energy, in structure, method and use, obviously still has inconvenience and defect, and is urgently further improved.How to found a kind of installation cost low, be beneficial to maintenance and carry out with external electrical network the new compound network system of utilizing marine tidal-current energy generating that supply and demand coordinates, becoming the current industry utmost point needs improved target.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of compound network system of utilizing marine tidal-current energy generating, the electricity needs can ensure micro-electrical network subsystem electricity shortage time, thus overcome the deficiency of existing stand alone generating system.
For solving the problems of the technologies described above, the invention provides a kind of compound network system of utilizing marine tidal-current energy generating, comprise the micro-electrical network subsystem being formed by intermittent energy source electricity generation system, energy-storage system, local load, also comprise the tidal current energy generating system, the external electrical network system that are incorporated to described micro-electrical network subsystem.
Further improve, described tidal current energy generating system comprises marine tidal-current energy generator group, and described marine tidal-current energy generator group depends on Large Bridge Pier and installs.
Further improve, the generating set cantilever that described marine tidal-current energy generator group is fixedly connected with by mainframe and with mainframe is fixedly installed in around Large Bridge Pier, described mainframe is installed on the machine unit support being fixed on Large Bridge Pier, described mainframe is positioned at below the water surface, and can on Large Bridge Pier, vertically move.
Further improve, between described mainframe and machine unit support, be provided with locking device and damping device.
Further improve, described mainframe, around Large Bridge Pier setting, matches with the outer surface of Large Bridge Pier, and described mainframe is Split type structure, between described Split type structure, removably connects.
Further improve, described intermittent energy source electricity generation system comprises wind generator system and/or photovoltaic generating system.
Further improve, described compound network system also comprises one or more in the biomass power generation system, small power station's system, diesel power generation system that is incorporated to compound electrical network.
In addition, the technical problem that the present invention also will solve is to provide a kind of power distribution method of compound network system of providing multiple forms of energy to complement each other, and can ensure the need for electricity of local load, thereby overcomes the deficiency of existing stand alone generating system.
For solving the problems of the technologies described above, the invention provides the power distribution method of above-mentioned compound network system, comprise following several state:
State 1: under current state, the power P of tidal current energy generating system output
sbe 0, intermittent energy source electricity generation system power output P
wbe 0, the charge power P of energy-storage system
bCwith discharge power P
bFbe not all 0, under this state the power of energy-storage system unsaturated but with the DC bus of described compound network system be off-state, local load P
lbe 0, external electrical network feeds back to the power P of described compound network system
gObe 0, now whole compound network system is inactive state;
State 2: under current state, the power P of tidal current energy generating system output
sbe 0, intermittent energy source electricity generation system power output P
wbe 0, local load P
lbe not 0, the discharge power P of energy-storage system
bFbe not 0, and P
bFbe greater than P
ltime, energy-storage system is given separately local load supplying, if P
bFwhile reaching maximum discharge condition, local load P
lstill need continued power, now external electrical network feeds back to the power P of described compound network system
gObe not 0, give local load supplying by external electrical network;
State 3: under current state, the power output of tidal current energy generating system and/or intermittent energy source electricity generation system is designated as P
s+ P
wbe not 0, local load P
lbe 0 or be less than P
s+ P
w, energy-storage system can be accepted charge power P
bCbe not 0, now energy-storage system is accepted charging until to have charged be P
bC=0, if P now
s+ P
wstill be greater than P
l, described compound network system is supplied with the power P of external electrical network
gIfor P
s+ P
w-P
l;
State 4: under current state, the power output of tidal current energy generating system and/or intermittent energy source electricity generation system is designated as P
s+ P
wbe not 0, local load P
lbe greater than P
s+ P
w, energy-storage system can be accepted discharge power P
bFbe not 0, now energy-storage system and electricity generation system are supplied with local load simultaneously, until energy-storage system can be accepted discharge power P
bFit is 0 o'clock, if local load P now
lstill be greater than P
s+ P
w, now electricity generation system and external electrical network are supplied with local load simultaneously, and external electrical network feeds back to the power P of described compound network system
gOfor P
l-P
s-P
w;
State 5: under current state, if water flow velocity and/or wind speed exceed can electricity generation system in the generating safe range of generating equipment, exceed the generating equipment access power consumption load pattern of the safe range of generating electricity, power consumption load is counted to the local P of load
l, now according to circumstances respectively with reference to above-mentioned state 1 to 4;
In described state 1 to 5, the power distribution of compound network system is by the integrated control in compound power grid control unit being arranged in compound network system.
Further improve, described compound network system also comprises one or more in the biomass power generation system, small power station's system, diesel power generation system that is incorporated to compound electrical network, the power output P of the one or more electricity generation systems in described biomass power generation system, small power station's system, diesel power generation system
rcount in the state 1 to 5 of described compound network system, by the integrated control in described compound power grid control unit.
Further improve, the actual power of described energy-storage system lower than gross power 20% time, energy-storage system stops electric discharge, now remembers P
bF=0; When the actual power of energy-storage system higher than gross power 80% time, energy-storage system stops charging, now remembers P
bC=0.
Adopt above-mentioned technical scheme, the present invention at least has the following advantages:
(1) the present invention adopts the technical scheme of marine tidal-current energy generating, auxiliary wind power generation, solar power generation, other energy electricity generation system, energy-storage system, the cooperation of carrying out supply and demand with external electrical network, use on the weak island of power supply capacity or coastal region, can ensure the electricity consumption needs of regional area, but also can in the time that the energy is more than needed, carry out supply to external electrical network, and obtain certain economic benefit, significant to development strand and Island Economy.
(2) the present invention can be embodied in marine tidal-current energy resource than more rich straits or region, river course, particularly there is the marine tidal-current energy generating foundation structure that depends on existing bridge foundation stake, make the installation of tidal current energy generating system save the expense of foundation structure, reduce cost, corresponding lift structure is installed again in this foundation structure, to ensure that unit, in the time breaking down, more than unit can be raised to the water surface by lifting means, is beneficial to the maintenance of marine tidal-current energy generator group.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, and in order to better understand technological means of the present invention, below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Fig. 1 is the compound network system composition schematic diagram that the present invention utilizes marine tidal-current energy generating;
Fig. 2 is the mounting structure schematic diagram of marine tidal-current energy generating equipment in the present invention;
Fig. 3 is the detailed schematic of A in Fig. 2.
Embodiment
1 is visible with reference to the accompanying drawings, and the compound network system of the present invention comprises tidal current energy generating system, intermittent energy source electricity generation system, other energy electricity generation system, energy-storage system, local load, external electrical network system and compound power grid control unit.
Marine tidal-current energy is the novel renewable energy of applying in the present invention, tidal current energy generating system comprises the conversion equipment of marine tidal-current energy generating equipment and connected electric current and voltage, this conversion equipment is connected with the DC bus of compound network system, with the electric energy that ensures marine tidal-current energy generating equipment delivered constant to DC bus, P
srepresent the power of marine tidal-current energy generating equipment output.
Intermittent energy source electricity generation system comprises the system of other intermittent energy source generatings such as wind generator system, photovoltaic generating system, but does not comprise tidal current energy generating system, and the present invention explains taking wind generator system as representative.Wind generator system comprises the conversion equipment of wind power plant and connected electric current and voltage, and this conversion equipment is connected with the DC bus of compound network system, with the electric energy that ensures wind power plant delivered constant to DC bus, P
wrepresent the power of this subsystem output.
Other energy electricity generation system, the electricity generation systems such as such as biomass power generation, small power station, diesel power generation, ensure under anhydrous, calm condition the normal startup of system.P
rrepresent the power of other energy electricity generation system output.
Energy-storage system is mainly used to store tidal current energy generating system, intermittent energy source electricity generation system electric energy more than needed, and when not enough, be used for supplying with local electric energy of loading in wind, water resources, energy-storage system comprises the conversion equipment of energy storage device and connected electric current and voltage, this conversion equipment is connected with the DC bus of compound network system, to DC bus, and ensure that energy-storage system obtains constant electric energy in the time accepting charging with the electric energy that ensures energy storage device delivered constant.P
bCexpression energy-storage system can be accepted charge power, P
bFexpression energy-storage system can be accepted discharge power.From the viewpoint of fail safe and the reliability of energy-storage system, when the actual power of energy-storage system lower than gross power 20% time, system stops electric discharge, now remembers P
bF=0; When the actual power of energy-storage system higher than gross power 80% time, system stops charging, now remembers P
bC=0; Can think the 20%-80% that the working range of energy-storage system is gross power.
Local load comprises general household electricity load and commercial power load etc., and this system also comprises the equipment such as transformer, to ensure local load safe handling electric energy, uses P
lrepresent load gross power.
Above-mentioned tidal current energy generating system, intermittent energy source electricity generation system, other energy electricity generation system, energy-storage system and the micro-electrical network subsystem of local load composition.
External electrical network in external electrical network system can be national grid, also can be CHINA SOUTHERN POWER, this system also comprises the electric current of DC bus and the conversion equipment of voltage in connection external electrical network and micro-electrical network subsystem, to ensure the fail safe of micro-electrical network subsystem or external electrical network system, P
gIrepresent the power of micro-electrical network subsystem supply external electrical network, P
gOrepresent that external electrical network feeds back to the power of micro-electrical network subsystem.
Compound power grid control unit have power-balance control, energy-storage system discharge and recharge control, local load control, with the function such as the system stable operation control of the mutual control of external electrical network and overspeed protection, DC bus-bar voltage protection.Compound power grid control unit is by the analysis to operating state, according to the variation of water flow velocity or wind speed and local load, the integrated control and management that the multiple electric energy in compound electrical network is correlated with.
Below the state that may occur in the present invention is described:
State 1: under current state, without water resources, without wind-resources (refer to produce the incision water flow velocity of electric energy or incision wind speed with cut out water flow velocity or cut-out wind speed between resource, lower with), the power P that tidal current energy generating system is exported
sbe 0, wind generator system power output P
wbe 0, the charge power P of energy-storage system
bCwith discharge power P
bFbe not all 0, under this state the power of energy-storage system unsaturated but with DC bus be off-state.Local load P
lalso be 0, now do not have the power demand P of external electrical network
gO, now whole system is inactive state;
State 2: under current state, without water resources, without wind-resources, the power P of tidal current energy generating system output
sbe 0, wind generator system power output P
wbe 0, now local load P
lbe not 0, the discharge power P of energy-storage system
bFbe not 0, and P
bF> P
l, energy-storage system is given separately local load supplying.If P
bFwhile reaching maximum discharge condition, and local load P
lneed continued power, now external electrical network feeds back to the power P of compound network system
gObe not 0, give local load supplying by external electrical network;
State 3: under current state, have water resources and (or) wind-resources, the power output of tidal current energy generating system and (or) wind generator system is designated as P
s+ P
w, current without local load P
ldemand or local load P
lbe P lower than electricity generation system power output
s+ P
w> P
l, energy-storage system can be accepted charge power P
bCbe not 0, now energy-storage system is accepted charging until to have charged be P
bC=0, if P still now
s+ P
w> P
l, unnecessary power P
s+ P
w-P
lbe input to external electrical network, be designated as P
gI;
State 4: under current state, have water resources and (or) wind-resources, the power output of tidal current energy generating system and (or) wind generator system is designated as P
s+ P
w, current local load P
lit is P that demand is greater than electricity generation system power output
s+ P
w< P
l, energy-storage system can be accepted discharge power P
bFbe not 0, and the power output short time that energy-storage system can be accepted discharge power and electricity generation system can meet local load P
l, until energy-storage system can be accepted discharge power P
bFbe 0, if P still now
s+ P
w< P
l, unnecessary power demand P
l-P
s-P
wcan only obtain from external electrical network, be designated as P
gO;
State 5: under current state, there are water resources and (or) wind-resources, but water flow velocity and (or) wind speed exceed generating safe range that can generating equipment, exceed can generation range generating equipment access power consumption load pattern, power consumption load is counted to the local P of load
l, now according to circumstances respectively with reference to above-mentioned state 1 to 4;
State 6: can be by the power output P of other energy electricity generation systems
rthe various states that count above-mentioned compound network system, jointly control.
The present invention effectively utilizes multiple renewable energy sources, add compound network system to form a kind of compound network system of the new-type type of providing multiple forms of energy to complement each other tidal current energy generating system especially, and effectively optimize the energy source configuration structure of compound electrical network, when not only can meeting local load, unnecessary electric energy can also be input to external electrical network, there is obvious economic benefit.
The compound network system of the present invention should be based upon marine tidal-current energy resource than more rich continent or area, island, optimum is based upon between the continent and island, island and island of existing Large Bridge Pier, because tidal current energy generating system has the marine tidal-current energy generating foundation structure that depends on existing Large Bridge Pier in the present invention.Visible with reference to accompanying drawing 2, this marine tidal-current energy generating foundation structure comprises existing Large Bridge Pier 1, on this Large Bridge Pier 1, marine tidal-current energy generator pack support 2 is installed, the installation of machine unit support 2 is firmly installed according to requirement of actual working condition, and the fixed position of machine unit support 2 is the following best generating of sea (river) plane position.
Tidal current energy generating system in the present invention also comprises mainframe 3, marine tidal-current energy generator group 4, generating set cantilever 5, hoisting mechanism 6 and maintenance work platform 7.Generating set cantilever 5 fixedly mounts with mainframe 3, and marine tidal-current energy generator group 4 is installed on generating set cantilever 5, and mainframe 3 is installed on machine unit support 2.Install with being convenient to for the firm of mainframe 3, mainframe 3 arranges around Large Bridge Pier 1, matches with the outer surface of Large Bridge Pier 1.Mainframe 3 is Split type structure, can adopt bolt or other dismountable structures to connect between each Split type structure.In order to be beneficial to the maintenance of marine tidal-current energy generator group in the time running into fault, hoisting mechanism 6 can adopt gear & rack structure that unit is promoted to sea (river) more than plane, carries out maintenance by maintenance work platform 7.As an embodiment of hoisting mechanism 6, hoisting mechanism 6 comprises the gear that is arranged on mainframe 3, connects the tooth bar of this gear and hoisting mechanism upper bracket and impel the power-equipment of gear teeth row culture relative motion.
Visible with reference to accompanying drawing 3, between marine tidal-current energy generator pack support 2 and mainframe 3, be provided with locking device 201 and damping device 202.The effect of locking device 201 ensures the firm of mainframe 3 while being the operation of marine tidal-current energy generator group.The effect of damping device 202: the one, the impact to Large Bridge Pier while alleviating the dive of marine tidal-current energy generator group, the 2nd, the vibration while alleviating the operation of marine tidal-current energy generator group.
The present invention depends on the marine tidal-current energy mounting structure pattern of existing bridge bridge pier, in the expense that ensures to save on safe basis foundation structure, reduces cost, and owing to thering is hoisting mechanism and be beneficial to the maintenance of marine tidal-current energy generator group.
Marine tidal-current energy generation technology is accessed local micro-grid system by the present invention, makes full use of the renewable energy power generation of strand or island periphery, can reduce pollution and the destruction of environment, the environment on protection strand or island; The present invention adopts the scheme of providing multiple forms of energy to complement each other, and not only ensures the need for electricity in the weak region of the power supply capacity such as strand or island; And by the large electrical network of access, can ensure the need for electricity in the time that regenerative resource is not enough, electric energy supply external electrical network when regenerative resource can also be had more than needed, unnecessary waste while avoiding regenerative resource more than needed, produce certain economic benefit, significant to development strand and Island Economy.
The above; it is only preferred embodiment of the present invention; not the present invention is done to any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (10)
1. one kind is utilized the compound network system of marine tidal-current energy generating, comprise the micro-electrical network subsystem being formed by intermittent energy source electricity generation system, energy-storage system, local load, it is characterized in that, also comprise the tidal current energy generating system, the external electrical network system that are incorporated to described micro-electrical network subsystem.
2. the compound network system of utilizing marine tidal-current energy generating according to claim 1, is characterized in that, described tidal current energy generating system comprises marine tidal-current energy generator group, and described marine tidal-current energy generator group depends on Large Bridge Pier and installs.
3. the compound network system of utilizing marine tidal-current energy generating according to claim 2, it is characterized in that, the generating set cantilever that described marine tidal-current energy generator group is fixedly connected with by mainframe and with mainframe is fixedly installed in around Large Bridge Pier, described mainframe is installed on the machine unit support being fixed on Large Bridge Pier, described mainframe is positioned at below the water surface, and can on Large Bridge Pier, vertically move.
4. the compound network system of utilizing marine tidal-current energy generating according to claim 3, is characterized in that, is provided with locking device and damping device between described mainframe and machine unit support.
5. the compound network system of utilizing marine tidal-current energy generating according to claim 3, it is characterized in that, described mainframe, around Large Bridge Pier setting, matches with the outer surface of Large Bridge Pier, described mainframe is Split type structure, between described Split type structure, removably connects.
6. the compound network system of utilizing marine tidal-current energy generating according to claim 1, is characterized in that, described intermittent energy source electricity generation system comprises wind generator system and/or photovoltaic generating system.
7. the compound network system of utilizing marine tidal-current energy generating according to claim 1, is characterized in that, described compound network system also comprises one or more in the biomass power generation system, small power station's system, diesel power generation system that is incorporated to compound electrical network.
8. according to a power distribution method for the compound network system described in claim 1 to 6 any one, it is characterized in that, comprise following several state:
State 1: under current state, the power P of tidal current energy generating system output
sbe 0, intermittent energy source electricity generation system power output P
wbe 0, the charge power P of energy-storage system
bCwith discharge power P
bFbe not all 0, under this state the power of energy-storage system unsaturated but with the DC bus of described compound network system be off-state, local load P
lbe 0, external electrical network feeds back to the power P of described compound network system
gObe 0, now whole compound network system is inactive state;
State 2: under current state, the power P of tidal current energy generating system output
sbe 0, intermittent energy source electricity generation system power output P
wbe 0, local load P
lbe not 0, the discharge power P of energy-storage system
bFbe not 0, and P
bFbe greater than P
ltime, energy-storage system is given separately local load supplying, if P
bFwhile reaching maximum discharge condition, local load P
lstill need continued power, now external electrical network feeds back to the power P of described compound network system
gObe not 0, give local load supplying by external electrical network;
State 3: under current state, the power output of tidal current energy generating system and/or intermittent energy source electricity generation system is designated as P
s+ P
wbe not 0, local load P
lbe 0 or be less than P
s+ P
w, energy-storage system can be accepted charge power P
bCbe not 0, now energy-storage system is accepted charging until to have charged be P
bC=0, if P now
s+ P
wstill be greater than P
l, described compound network system is supplied with the power P of external electrical network
gIfor P
s+ P
w-P
l;
State 4: under current state, the power output of tidal current energy generating system and/or intermittent energy source electricity generation system is designated as P
s+ P
wbe not 0, local load P
lbe greater than P
s+ P
w, energy-storage system can be accepted discharge power P
bFbe not 0, now energy-storage system and electricity generation system are supplied with local load simultaneously, until energy-storage system can be accepted discharge power P
bFit is 0 o'clock, if local load P now
lstill be greater than P
s+ P
w, now electricity generation system and external electrical network are supplied with local load simultaneously, and external electrical network feeds back to the power P of described compound network system
gOfor P
l-P
s-P
w;
State 5: under current state, if water flow velocity and/or wind speed exceed can electricity generation system in the generating safe range of generating equipment, exceed the generating equipment access power consumption load pattern of the safe range of generating electricity, power consumption load is counted to the local P of load
l, now according to circumstances respectively with reference to above-mentioned state 1 to 4;
In described state 1 to 5, the power distribution of compound network system is by the integrated control in compound power grid control unit being arranged in compound network system.
9. the power distribution method of compound network system according to claim 8, it is characterized in that, described compound network system also comprises one or more in the biomass power generation system, small power station's system, diesel power generation system that is incorporated to compound electrical network, the power output P of the one or more electricity generation systems in described biomass power generation system, small power station's system, diesel power generation system
rcount in the state 1 to 5 of described compound network system, by the integrated control in described compound power grid control unit.
10. the power distribution method of compound network system according to claim 8, is characterized in that, the actual power of described energy-storage system lower than gross power 20% time, energy-storage system stop electric discharge, now remember P
bF=0; When the actual power of energy-storage system higher than gross power 80% time, energy-storage system stops charging, now remembers P
bC=0.
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| CN107453390A (en) * | 2016-06-01 | 2017-12-08 | 北京睿能世纪科技有限公司 | A kind of electricity generation system and electricity-generating method for power network power supply |
| CN114123319A (en) * | 2021-11-18 | 2022-03-01 | 武汉奥锐通信技术有限公司 | OPLC-based grid-connected power generation system |
| WO2023197624A1 (en) * | 2022-04-13 | 2023-10-19 | 青岛海尔空调器有限总公司 | Tidal power generation control method and device |
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| CN102074970A (en) * | 2009-11-19 | 2011-05-25 | 三星Sdi株式会社 | Energy management system and grid-connected energy storage system including the energy management system |
| CN103557110A (en) * | 2013-11-07 | 2014-02-05 | 冀三阳 | Technical scheme for generating power by utilizing kinetic energy of circulating seawater and tidal seawater in power station |
| CN204144965U (en) * | 2014-07-25 | 2015-02-04 | 国电联合动力技术有限公司 | A kind of compound network system utilizing marine tidal-current energy to generate electricity |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107453390A (en) * | 2016-06-01 | 2017-12-08 | 北京睿能世纪科技有限公司 | A kind of electricity generation system and electricity-generating method for power network power supply |
| CN107453390B (en) * | 2016-06-01 | 2019-11-15 | 北京睿能世纪科技有限公司 | A kind of electricity generation system and electricity-generating method for power grid power supply |
| CN114123319A (en) * | 2021-11-18 | 2022-03-01 | 武汉奥锐通信技术有限公司 | OPLC-based grid-connected power generation system |
| WO2023197624A1 (en) * | 2022-04-13 | 2023-10-19 | 青岛海尔空调器有限总公司 | Tidal power generation control method and device |
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