CN105186507A - Microgrid-based charge and energy-storage integrated energy management system and method - Google Patents
Microgrid-based charge and energy-storage integrated energy management system and method Download PDFInfo
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Abstract
The invention discloses a microgrid-based charge and energy-storage integrated energy management system, which comprises a distributed generation unit, a charge unit, an energy storage unit, an area power supply unit and an energy management system, wherein output ends of the distribution generation unit and the area power supply unit are electrically connected with input ends of the energy storage unit and the charge unit through alternating current buses respectively; meanwhile, the output end of the distribution generation unit is electrically connected with the output end of the area power supply unit through the alternating current bus; the energy management system comprises a distributed monitoring unit, a battery management system (BMS) unit, an electrical load monitoring unit, a charge monitoring unit, a metering and billing unit, an environment monitoring unit, a master monitoring unit and an operation interface unit; the distributed monitoring unit is electrically connected with the distributed generation unit; the BMS unit is electrically connected with the energy storage unit; the electrical load monitoring unit is electrically connected with the area power supply unit; the charge monitoring unit is electrically connected with the charge unit; the metering and billing unit is electrically connected with the charge unit; and the environment monitoring unit is arranged in the distributed generation unit.
Description
Technical field
The present invention relates to regional power grid supply of electric power administrative skill field, particularly a kind of based on the charging of micro-capacitance sensor, the energy management system of energy storage integrated and method.
Background technology
The rapid growth of city fuel-engined vehicle quantity in recent years, fuel-engined vehicle waste gas has become one of key factor of the environmental problem such as city haze, PM2.5.New-energy electric vehicle is as the wide green traffic instrument of a kind of development prospect, and be just subject to actively pushing forward of national governments, electric automobile obtains the development of advancing by leaps and bounds.
Fill the maturation of changing power technology along with electric automobile and electric automobile is promoted the use of on a large scale, the quantity of the supporting charging device of electric automobile will increase fast.Charging pile for family expenses New-energy electric vehicle has alternating-current charging pile and direct-current charging post two kinds, single alternating-current charging pile charge power is generally 2-7KW, single direct-current charging post charge power is generally 20-70KW, a charging station comprises several to tens charging piles do not waited usually, needs the transformer capacity for its coupling usually more to need the even thousands of KVA of hundreds of.And the electric power system of the units such as community, CBD, school, highway parking lot or service area does not consider the load condition that charging pile is built at the beginning of construction, early stage, the transformer capacity of coupling was less, the charging pile quantity of construction can be allowed extremely limited, and this problem will hinder the development of New-energy electric vehicle.
At present, conventional way is the original transformer capacity of upgrading or is the newly-built transmission of electricity special line of charging station, and these two kinds not only may need to transform transmission line, invest larger, and be limited to the restriction of upper level transformation station total capacity, upgrading or newly-built transformer capacity limited.Therefore regional power grid supply of electric power problem will seriously restrict the construction of electric automobile charging pile, thus hinders the development of New-energy electric vehicle.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of based on the charging of micro-capacitance sensor, the energy management system of energy storage integrated and method.
Based on the charging of micro-capacitance sensor technology, an energy management system for energy storage integrated, it comprises distributed generation unit, charhing unit, energy-storage units, block supply unit and energy management system;
The output of distributed generation unit, block supply unit is electrically connected by ac bus with the input of energy-storage units, charhing unit respectively; The output of distributed generation unit is electrically connected by ac bus with the output of block supply unit simultaneously;
Energy management system comprises distributed monitoring unit, BMS unit, electric loading monitoring unit, charging monitoring unit, metering and billing unit, Environment Monitor Unit, main monitoring unit, operation interface unit;
Distributed monitoring unit is electrically connected with distributed generation unit; BMS unit is electrically connected with energy-storage units; Electric loading monitoring unit is electrically connected with block supply unit; Charging monitoring unit is electrically connected with charhing unit; Metering and billing unit is electrically connected with charhing unit; Environment Monitor Unit is arranged in distributed generation unit; Distributed monitoring unit, BMS unit, electric loading monitoring unit, charging monitoring unit, metering and billing unit, Environment Monitor Unit and operation interface unit are electrically connected with main monitoring unit respectively.
In the energy management system of the charging based on micro-capacitance sensor technology of the present invention, energy storage integrated,
Described distributed generation unit comprises wind power station, solar photovoltaic power plant, distributed gas power station, the first current transformer, the second current transformer, the 3rd current transformer, the first switch, second switch, the 3rd switch; Wind power station, solar photovoltaic power plant, distributed gas power station are electrically connected with the input of the first current transformer, the second current transformer, the 3rd current transformer respectively successively; The output of the first current transformer, the second current transformer, the 3rd current transformer is connected with the input of the first switch, second switch, the 3rd switch successively respectively; The output of the first switch, second switch, the 3rd switch is electrically connected to the input of accumulation power supply, the output of block supply unit respectively by ac bus.
In the energy management system of the charging based on micro-capacitance sensor technology of the present invention, energy storage integrated,
Described charhing unit comprises the 4th switch, the 5th switch, the 6th switch, the 7th switch, charger, multiple charging pile; The input of charger is electrically connected with the output of the 4th switch; The output of charger is electrically connected with the input of multiple charging pile respectively; To connect respectively between charger with multiple charging pile a switch; Described switch comprises the 5th switch, the 6th switch, the 7th switch; The input of the 4th switch is electrically connected to the output of the output of block supply unit, the output of distributed generation unit simultaneously.
In the energy management system of the charging based on micro-capacitance sensor technology of the present invention, energy storage integrated,
Described energy-storage units comprises energy-storage module, charging control circuit, charge/discharge control circuit; Energy-storage module is electrically connected with the output of charging control circuit, the input of charge/discharge control circuit respectively; The input of charging control circuit is electrically connected to the output of block supply unit, the output of distributed generation unit simultaneously; The output of charge/discharge control circuit is electrically connected to the input of charhing unit.
In the energy management system of the charging based on micro-capacitance sensor technology of the present invention, energy storage integrated,
Described block supply unit comprises electrical network, transformer, the 8th switch; The input of electrical network, transformer, the 8th switch is connected successively; The output of the 8th switch is electrically connected to the output of the input of charhing unit, the input of energy-storage units and distributed generation unit simultaneously.
In the energy management system of the charging based on micro-capacitance sensor technology of the present invention, energy storage integrated,
Described main monitoring unit comprises that state reads subelement, storing sub-units, weights arrange subelement, BP neural network learning subelement, process subelement; Storing sub-units, weights arrange subelement, BP neural network learning subelement and are electrically connected with process subelement respectively; Weights arrange subelement and are electrically connected with BP neural network learning subelement; State reads subelement, is electrically connected with storing sub-units;
State reads subelement for reading various information, read various information and comprise the energy output information reading the distributed generation unit that distributed monitoring unit sends, the amount of power reading the energy-storage units that BMS unit sends stores information, read the electric loading information of the block supply unit that electric loading monitoring unit sends, read the charging pile running state information of the charhing unit that charging monitoring unit sends, charge power demand information, charge mode information, read the electricity metering information of the charhing unit that metering and billing unit sends, read the ambient parameter information of the distributed generation unit that Environment Monitor Unit sends, and for various information is sent to storing sub-units,
Weights arrange subelement for arranging the judgement weights of various information, and judgement weights are sent to process subelement;
The decision value that BP neural network learning subelement sends for receiving process subelement, and according to decision value to judging weights correction, send to weights that subelement is set revised weights;
Process subelement is used for from storing sub-units, read various information, arrange subelement to read from weights and judge weights, according to judging that weights and the generation of various information determine that the electricity needs value of charhing unit, distributed generation unit energy output, distributed generation unit are the decision value that charhing unit is powered; And decision value is sent to distributed generation unit, charhing unit, energy-storage units, block supply unit and BP neural network learning subelement.
The present invention also provides a kind of based on the charging of micro-capacitance sensor, the energy management method of energy storage integrated, and its energy management system by the above-mentioned charging based on micro-capacitance sensor, energy storage integrated realizes, and in turn includes the following steps:
S1, main monitoring unit obtains various information, various information comprises distributed monitoring unit and gathers and the energy output information of the distributed generation unit sent, BMS unit gathers and the amount of power of the energy-storage units sent stores information, electric loading monitoring unit gathers and the electric loading information of the block supply unit sent, charging monitoring unit gathers and the charging pile running state information of the charhing unit sent, charge power demand information, charge mode information, metering and billing unit gathers and the electricity metering information of the charhing unit sent, Environment Monitor Unit gathers and the ambient parameter information of the distributed generation unit sent,
Various information in S2, main monitoring unit obtaining step S1, and generate and determine that the electricity needs value of charhing unit, distributed generation unit energy output, distributed generation unit are the decision value that charhing unit is powered; And decision value is sent to distributed generation unit, charhing unit, energy-storage units, block supply unit;
S3, judge the electricity needs value of charhing unit whether obtain distributed generation unit meet, when the requirements of charhing unit is met, jump to step S9, when the requirements of charhing unit is not met, jump to step S4;
The electric loading grade of S4, judging area power supply unit; When electric loading grade is 1 grade, jump to step S5; When electric loading grade is 2 grades, jump to step S6; When electric loading grade is 3 grades, jump to step S7;
S5, block supply unit suspend as charhing unit is powered; Distributed generation unit is that charhing unit is powered, if charhing unit is powered still have deficiency, then starting energy-storage units is that charhing unit is powered; Jump to step S8;
S6, distributed generation unit, block supply unit, energy-storage units are followed successively by charhing unit according to priority and power; Jump to step S8;
S7, distributed generation unit, block supply unit are that charhing unit is powered; Distributed generation unit, block supply unit are energy-storage units charging; Jump to step S8;
S8, continuation judge that whether the electricity needs of charhing unit is still jagged; If there is no breach, jump to step S9; If any still jagged, the quantity of charging pile used in restriction charhing unit also limits the charge mode of charging pile, jumps to step S9;
S9, terminate this electrical management flow process.
In the energy management method of the charging based on micro-capacitance sensor of the present invention, energy storage integrated,
Described step S2 comprises successively:
State reads subelement and reads various information, read various information and comprise the energy output information reading the distributed generation unit that distributed monitoring unit sends, the amount of power reading the energy-storage units that BMS unit sends stores information, read the electric loading information of the block supply unit that electric loading monitoring unit sends, read the charging pile running state information of the charhing unit that charging monitoring unit sends, charge power demand information, charge mode information, read the electricity metering information of the charhing unit that metering and billing unit sends, read the ambient parameter information of the distributed generation unit that Environment Monitor Unit sends, and for various information is sent to storing sub-units,
Weights arrange the judgement weights that subelement arranges various information, and judgement weights are sent to process subelement;
Process subelement reads various information from storing sub-units, arrange subelement to read from weights and judge weights, according to judging that weights and the generation of various information determine that the electricity needs value of charhing unit, distributed generation unit energy output, distributed generation unit are the decision value that charhing unit is powered.
In the energy management method of the charging based on micro-capacitance sensor of the present invention, energy storage integrated, described step S2 also comprises:
Decision value is sent to BP neural network learning subelement by process subelement;
BP neural network learning subelement receives the decision value that process subelement sends, and according to decision value to judging weights correction, sends to weights to arrange subelement revised weights.
The present invention is by setting up distributed new power station and energy-accumulating power station at charging station user side annex, and namely realize " generation of electricity by new energy, new forms of energy use ", energy savings, efficiently solves the problem of regional power grid power supply capacity deficiency; Adopt collecting-distributing energy monitoring management mode, by accurate configuration calculation method, realize the optimization matching of the energy in distributed new generating, energy storage, charging integrative project, make full use of the operation stability problem efficiently solving integral system and regional power grid under clean energy resource condition.
Accompanying drawing explanation
Fig. 1 is the charging based on micro-capacitance sensor technology of the embodiment of the present invention, the energy management system structured flowchart of energy storage integrated;
Fig. 2 is the structured flowchart of distributed generation unit in Fig. 1;
Fig. 3 is the structured flowchart of charhing unit in Fig. 1;
Fig. 4 is the structured flowchart of energy-storage units in Fig. 1;
Fig. 5 is the structured flowchart of block supply unit in Fig. 1;
Fig. 6 is the structured flowchart of main monitoring unit in Fig. 1.
Embodiment
As shown in Figure 1, the embodiment of the present invention provides a kind of based on the charging of micro-capacitance sensor technology, the energy management system of energy storage integrated, and it comprises distributed generation unit 10, charhing unit 20, energy-storage units 30, block supply unit 40 and energy management system:
The output of distributed generation unit 10, block supply unit 40 is electrically connected by ac bus with the input of energy-storage units 30, charhing unit 20 respectively; The output of distributed generation unit 10 is electrically connected by ac bus with the output of block supply unit 40 simultaneously.The output of distributed generation unit 10 be electrically connected by ac bus with the output of block supply unit 40 simultaneously and can realize distributed generation unit 10 still have surplus after powering to charhing unit 20, can carry out grid-connected with block supply unit 40.Block supply unit 40 i.e. ordinary city electric network.Distributed generation unit 10 is the power generating equipment near charging station user side, operational mode for generating power for their own use, remaining electricity upper block supply unit (city's net).
Energy management system comprises distributed monitoring unit 51, BMS unit 52 (battery management system, BATTERYMANAGEMENTSYSTEM), electric loading monitoring unit 53, charging monitoring unit 54, metering and billing unit 55, Environment Monitor Unit 56, main monitoring unit 57, operation interface unit 58, print unit 59 can also be comprised.
Distributed monitoring unit 51 is electrically connected with distributed generation unit 10; BMS unit 52 is electrically connected with energy-storage units 30; Electric loading monitoring unit 53 is electrically connected with block supply unit 40; Charging monitoring unit 54 is electrically connected with charhing unit 20; Metering and billing unit 55 is electrically connected with charhing unit 20; Environment Monitor Unit 56 is arranged in distributed generation unit 10; Distributed monitoring unit 51, BMS unit 52, electric loading monitoring unit 53, charging monitoring unit 54, metering and billing unit 55, Environment Monitor Unit 56 and operation interface unit 58 are electrically connected with main monitoring unit 57 respectively.Alternatively, distributed monitoring unit 51, BMS unit 52, electric loading monitoring unit 53, charging monitoring unit 54, metering and billing unit 55, Environment Monitor Unit 56 are electrically connected with main monitoring unit 57 respectively by can bus.Operation interface unit 58 and main monitoring unit 57 adopt RS485 to communicate to connect, and arrange controling parameters by human-machine operation/display interface.Alternatively, operation interface unit 58 can be LED human-machine operation/display screen.
Alternatively, as shown in Figure 2,
Described distributed generation unit 10 comprises wind power station 11, solar photovoltaic power plant 12, distributed gas power station 13, first current transformer 14a, the second current transformer 14b, the 3rd current transformer 14c, the first switch 15a, second switch 15b, the 3rd switch 15c; Wind power station 11, solar photovoltaic power plant 12, distributed gas power station 13 are electrically connected with the input of the first current transformer 14a, the second current transformer 14b, the 3rd current transformer 14c respectively successively; The output of the first current transformer 14a, the second current transformer 14b, the 3rd current transformer 14c is connected with the input of the first switch 15a, second switch 15b, the 3rd switch 15c successively respectively; The output of the first switch 15a, second switch 15b, the 3rd switch 15c is electrically connected to the input of accumulation power supply, the output of block supply unit 40 respectively by ac bus.Alternatively, distributed generation unit 10 electricities change 380V electric pressure respectively by after the first current transformer 14a, the second current transformer 14b, the 3rd current transformer 14c.
Alternatively, as shown in Figure 3,
Described charhing unit 20 comprises the 4th switch 21a, the 5th switch 21b, the 6th switch 21c, the 7th switch 21d, charger 22, multiple charging pile; The input of charger 22 is electrically connected with the output of the 4th switch 21a; The output of charger 22 is electrically connected with the input of multiple charging pile respectively; To connect respectively between charger 22 with multiple charging pile a switch; Described switch comprises the 5th switch 21b, the 6th switch 21c, the 7th switch 21d; The input of the 4th switch 21a is electrically connected to the output of the output of block supply unit 40, the output of distributed generation unit 10 simultaneously.4th switch 21a can control area power supply unit 40, distributed generation unit 10 at power tense time, switch charger 22 and the output of block supply unit 40, being communicated with of the output of distributed generation unit 10.Multiple charging pile is the first charging pile 23a, the second charging pile 23b, the 3rd charging pile 23c such as.The present invention does not limit the quantity of charging pile.
Alternatively, as shown in Figure 4,
Described energy-storage units 30 comprises energy-storage module 31, charging control circuit 32, charge/discharge control circuit 33; Energy-storage module 31 is electrically connected with the output of charging control circuit 32, the input of charge/discharge control circuit 33 respectively; The input of charging control circuit 32 is electrically connected to the output of block supply unit 40, the output of distributed generation unit 10 simultaneously; The output of charge/discharge control circuit 33 is electrically connected to the input of charhing unit 20.Alternatively, energy-storage module 31 can be one or several of the energy storage devices such as lithium battery group, lead-acid battery group, Ni-MH battery group or super capacitor.By arranging charging control circuit 32 and charge/discharge control circuit 33, when can be implemented in power tense, energy-storage units 30 is powered for charhing unit 20; When supply of electric power is had a surplus, for energy-storage units 30 charges.
Alternatively, as shown in Figure 5,
Described block supply unit 40 comprises electrical network 41, transformer 42, the 8th switch 43; The input of electrical network 41, transformer 42, the 8th switch 43 is connected successively; The output of the 8th switch 43 is electrically connected to the output of the input of charhing unit 20, the input of energy-storage units 30 and distributed generation unit 10 simultaneously.When 8th switch 43 can be implemented in block supply unit 40 power shortages, stop as energy-storage units 30 and charhing unit 20 are powered.
Alternatively, as shown in Figure 6,
Described main monitoring unit 57 comprises that state reads subelement 571, storing sub-units 572, weights arrange subelement 573, BP neural network learning subelement 574, process subelement 570; Storing sub-units 572, weights arrange subelement 573, BP neural network learning subelement 574 and are electrically connected with process subelement 570 respectively; Weights arrange subelement 573 and are electrically connected with BP neural network learning subelement 574; State reads subelement 571, is electrically connected with storing sub-units 572.
State reads subelement 571 for reading various information, read various information and comprise the energy output information reading the distributed generation unit 10 that distributed monitoring unit 51 sends, the amount of power reading the energy-storage units 30 that BMS unit 52 sends stores information, read the electric loading information of the block supply unit 40 that electric loading monitoring unit 53 sends, read the charging pile running state information of the charhing unit 20 that charging monitoring unit 54 sends, charge power demand information, charge mode information, read the electricity metering information of the charhing unit 20 that metering and billing unit 55 sends, read the ambient parameter information of the distributed generation unit 10 that Environment Monitor Unit 56 sends, and for various information is sent to storing sub-units 572.Alternatively, ambient parameter information comprises the environmental parameter such as temperature, humidity, illuminance, wind speed in distributed generation unit 10.Alternatively, state reads subelement 571 and gathers as the mode of Real-time Collection, alternatively, can by pre-setting acquisition time interval, the described time interval can some minutes or some seconds be unit.
Weights arrange subelement 573 for arranging the judgement weights of various information, and judgement weights are sent to process subelement 570.
The decision value that BP neural network learning subelement 574 sends for receiving process subelement 570, and according to decision value to judging weights correction, send to weights that subelement 573 is set revised weights.
Process subelement 570 for reading various information from storing sub-units 572, arrange subelement 573 to read from weights and judge weights, according to judging that the decision value that the electricity needs value of charhing unit 20, distributed generation unit 10 energy output, distributed generation unit 10 are powered as charhing unit 20 is determined in weights and the generation of various information; And decision value is sent to distributed generation unit 10, charhing unit 20, energy-storage units 30, block supply unit 40 and BP neural network learning subelement 574.
The embodiment of the present invention also provides a kind of based on the charging of micro-capacitance sensor, the energy management method of energy storage integrated, and its energy management system by the above-mentioned charging based on micro-capacitance sensor, energy storage integrated realizes, and in turn includes the following steps:
S1, main monitoring unit 57 obtains various information, various information comprises distributed monitoring unit 51 and gathers and the energy output information of the distributed generation unit 10 sent, BMS unit 52 gathers and the amount of power of the energy-storage units 30 sent stores information, electric loading monitoring unit 53 gathers and the electric loading information of the block supply unit 40 sent, charging monitoring unit 54 gathers and the charging pile running state information of the charhing unit 20 sent, charge power demand information, charge mode information, metering and billing unit 55 gathers and the electricity metering information of the charhing unit 20 sent, Environment Monitor Unit 56 gathers and the ambient parameter information of the distributed generation unit 10 sent.
Various information in S2, main monitoring unit 57 obtaining step S1, and generate and determine that the electricity needs value of charhing unit 20, distributed generation unit 10 energy output, distributed generation unit 10 be the decision value of charhing unit 20 power supply; And decision value is sent to distributed generation unit 10, charhing unit 20, energy-storage units 30, block supply unit 40.
S3, judge the electricity needs value of charhing unit 20 whether obtain distributed generation unit 10 meet, when the requirements of charhing unit 20 is met, jump to step S9, when the requirements of charhing unit 20 is not met, jump to step S4;
The electric loading grade of S4, judging area power supply unit 40; When electric loading grade is 1 grade, jump to step S5; When electric loading grade is 2 grades, jump to step S6; When electric loading grade is 3 grades, jump to step S7.
In order to clearly represent regional power grid electric loading grade, arrange the electric loading threshold value of 2 block supply unit 40, the electric loading grade of corresponding block supply unit 40 is respectively 1 grade, 2 grades, 3 grades; Described electric loading is greater than first threshold, and the electric loading of block supply unit 40 is the 1st grade; When described regional power grid electric loading is the 1st grade, show the peak times of power consumption of block supply unit 40, electricity consumption is extremely nervous, and block supply unit 40 is forbidden or limit power to be that charhing unit 20 is powered; Regional power grid electric loading is not more than Second Threshold, the electric loading grade of corresponding region power supply unit 40 is the 3rd grade, show that the electric loading of block supply unit 40 is less, the electric power residue of block supply unit 40 is more, allows block supply unit 40 to power for charhing unit 20 and energy-storage units 30 simultaneously; Described block supply unit 40 electric loading grade is greater than Second Threshold but is not more than lower than threshold value, and block supply unit 40 electric loading is the 2nd grade, allows block supply unit 40 to power for charhing unit 20, but forbids for energy-storage units 30 charges.
S5, block supply unit 40 suspend powers for charhing unit 20; Distributed generation unit 10 is powered for charhing unit 20, if charhing unit 20 power supply still has deficiency, then starts energy-storage units 30 and powers for charhing unit 20; Jump to step S8; When electric loading is the 1st grade, suspends block supply unit 40 and export, for the priority level of charhing unit 20 is as distributed generation unit 10, energy-storage units 30; Namely distributed generation unit 10 is preferably charhing unit 20 and powers, and if any electricity shortage, then starts energy-storage units 30 and discharges, for unit is powered; Otherwise, then do not need to start energy-storage units 30 and power.
S6, distributed generation unit 10, block supply unit 40, energy-storage units 30 are followed successively by charhing unit 20 according to priority and power; Jump to step S8.When regional power grid electric loading grade is the 2nd grade, for the priority level of charging station power supply unit is as distributed generation unit 10, block supply unit 40, energy-storage units 30; Namely distributed generation unit 10 is preferably charhing unit 20 and powers, as distributed generation unit 10 can not meet charhing unit 20 demand then starting region power supply unit 40 power.
S7, distributed generation unit 10, block supply unit 40 are that charhing unit 20 is powered successively; Distributed generation unit 10, block supply unit 40 charge for energy-storage units 30; Jump to step S8.
S8, continuation judge that whether the electricity needs of charhing unit 20 is still jagged; If there is no breach, jump to step S9; If any still jagged, the quantity of the charging pile used in restriction charhing unit 20 also limits the charge mode of charging pile, jumps to step S9.
S9, terminate this electrical management flow process.
Alternatively,
Described step S2 comprises successively:
State reads subelement 571 and reads various information, read various information and comprise the energy output information reading the distributed generation unit 10 that distributed monitoring unit 51 sends, the amount of power reading the energy-storage units 30 that BMS unit 52 sends stores information, read the electric loading information of the block supply unit 40 that electric loading monitoring unit 53 sends, read the charging pile running state information of the charhing unit 20 that charging monitoring unit 54 sends, charge power demand information, charge mode information, read the electricity metering information of the charhing unit 20 that metering and billing unit 55 sends, read the ambient parameter information of the distributed generation unit 10 that Environment Monitor Unit 56 sends, and for various information is sent to storing sub-units 572.
Weights arrange the judgement weights that subelement 573 arranges various information, and judgement weights are sent to process subelement 570.Due to various information, comprising the information such as energy output information, electric loading information, charging pile running state information there is correlation in some, some does not have obvious correlation, therefore the decision value of power supply of the impact make to(for) process subelement 570 of each information is different, therefore can arrange and judges weights accordingly according to affecting difference.Corresponding judgement weights can obtain in advance by experiment.
Process subelement 570 reads various information from storing sub-units 572, arrange subelement 573 to read from weights and judge weights, according to judging that the decision value that the electricity needs value of charhing unit 20, distributed generation unit 10 energy output, distributed generation unit 10 are powered as charhing unit 20 is determined in weights and the generation of various information.
In the energy management method of the charging based on micro-capacitance sensor of the present invention, energy storage integrated, described step S2 also comprises:
Decision value is sent to BP neural network learning subelement 574 by process subelement 570.
BP neural network learning subelement 574 receives the decision value that process subelement 570 sends, and according to decision value to judging weights correction, sends to weights to arrange subelement 573 revised weights.The decision value of process subelement 570 transmission is received by BP neural network learning subelement 574, and according to decision value to judging weights correction, using initial decision weights, decision value as input value, using objective decision value as standard value, obtain revised judgement weights by BP network neural algorithm.Thus decision-making can be carried out to distributed generation unit 10 energy output, distributed generation unit 10 for charhing unit 20 power supply more accurately.
The present invention is by setting up distributed new power station and energy-accumulating power station at charging station user side annex, and namely realize " generation of electricity by new energy, new forms of energy use ", energy savings, efficiently solves the problem of regional power grid power supply capacity deficiency; Adopt collecting-distributing energy monitoring management mode, by accurate configuration calculation method, realize the optimization matching of the energy in distributed new generating, energy storage, charging integrative project, make full use of the operation stability problem efficiently solving integral system and regional power grid under clean energy resource condition.
In the embodiment above, embodiment of the method is also used as the function limiting each device of system embodiment, system.
Be understandable that, for the person of ordinary skill of the art, other various corresponding change and distortion can be made by technical conceive according to the present invention, and all these change the protection range that all should belong to the claims in the present invention with distortion.
Claims (9)
1. based on the charging of micro-capacitance sensor technology, an energy management system for energy storage integrated, it is characterized in that, it comprises distributed generation unit, charhing unit, energy-storage units, block supply unit and energy management system:
The output of distributed generation unit, block supply unit is electrically connected by ac bus with the input of energy-storage units, charhing unit respectively; The output of distributed generation unit is electrically connected by ac bus with the output of block supply unit simultaneously;
Energy management system comprises distributed monitoring unit, BMS unit, electric loading monitoring unit, charging monitoring unit, metering and billing unit, Environment Monitor Unit, main monitoring unit, operation interface unit;
Distributed monitoring unit is electrically connected with distributed generation unit; BMS unit is electrically connected with energy-storage units; Electric loading monitoring unit is electrically connected with block supply unit; Charging monitoring unit is electrically connected with charhing unit; Metering and billing unit is electrically connected with charhing unit; Environment Monitor Unit is arranged in distributed generation unit; Distributed monitoring unit, BMS unit, electric loading monitoring unit, charging monitoring unit, metering and billing unit, Environment Monitor Unit and operation interface unit are electrically connected with main monitoring unit respectively.
2., as claimed in claim 1 based on the charging of micro-capacitance sensor technology, the energy management system of energy storage integrated, it is characterized in that,
Described distributed generation unit comprises wind power station, solar photovoltaic power plant, distributed gas power station, the first current transformer, the second current transformer, the 3rd current transformer, the first switch, second switch, the 3rd switch; Wind power station, solar photovoltaic power plant, distributed gas power station are electrically connected with the input of the first current transformer, the second current transformer, the 3rd current transformer respectively successively; The output of the first current transformer, the second current transformer, the 3rd current transformer is connected with the input of the first switch, second switch, the 3rd switch successively respectively; The output of the first switch, second switch, the 3rd switch is electrically connected to the input of accumulation power supply, the output of block supply unit respectively by ac bus.
3., as claimed in claim 2 based on the charging of micro-capacitance sensor technology, the energy management system of energy storage integrated, it is characterized in that,
Described charhing unit comprises the 4th switch, the 5th switch, the 6th switch, the 7th switch, charger, multiple charging pile; The input of charger is electrically connected with the output of the 4th switch; The output of charger is electrically connected with the input of multiple charging pile respectively; To connect respectively between charger with multiple charging pile a switch; Described switch comprises the 5th switch, the 6th switch, the 7th switch; The input of the 4th switch is electrically connected to the output of the output of block supply unit, the output of distributed generation unit simultaneously.
4., as claimed in claim 3 based on the charging of micro-capacitance sensor technology, the energy management system of energy storage integrated, it is characterized in that,
Described energy-storage units comprises energy-storage module, charging control circuit, charge/discharge control circuit; Energy-storage module is electrically connected with the output of charging control circuit, the input of charge/discharge control circuit respectively; The input of charging control circuit is electrically connected to the output of block supply unit, the output of distributed generation unit simultaneously; The output of charge/discharge control circuit is electrically connected to the input of charhing unit.
5., as claimed in claim 4 based on the charging of micro-capacitance sensor technology, the energy management system of energy storage integrated, it is characterized in that,
Described block supply unit comprises electrical network, transformer, the 8th switch; The input of electrical network, transformer, the 8th switch is connected successively; The output of the 8th switch is electrically connected to the output of the input of charhing unit, the input of energy-storage units and distributed generation unit simultaneously.
6. the charging of state based on micro-capacitance sensor technology as claimed in claim 4, the energy management system of energy storage integrated, is characterized in that,
Described main monitoring unit comprises that state reads subelement, storing sub-units, weights arrange subelement, BP neural network learning subelement, process subelement; Storing sub-units, weights arrange subelement, BP neural network learning subelement and are electrically connected with process subelement respectively; Weights arrange subelement and are electrically connected with BP neural network learning subelement; State reads subelement, is electrically connected with storing sub-units;
State reads subelement for reading various information, read various information and comprise the energy output information reading the distributed generation unit that distributed monitoring unit sends, the amount of power reading the energy-storage units that BMS unit sends stores information, read the electric loading information of the block supply unit that electric loading monitoring unit sends, read the charging pile running state information of the charhing unit that charging monitoring unit sends, charge power demand information, charge mode information, read the electricity metering information of the charhing unit that metering and billing unit sends, read the ambient parameter information of the distributed generation unit that Environment Monitor Unit sends, and for various information is sent to storing sub-units,
Weights arrange subelement for arranging the judgement weights of various information, and judgement weights are sent to process subelement;
The decision value that BP neural network learning subelement sends for receiving process subelement, and according to decision value to judging weights correction, send to weights that subelement is set revised weights;
Process subelement is used for from storing sub-units, read various information, arrange subelement to read from weights and judge weights, according to judging that weights and the generation of various information determine that the electricity needs value of charhing unit, distributed generation unit energy output, distributed generation unit are the decision value that charhing unit is powered; And decision value is sent to distributed generation unit, charhing unit, energy-storage units, block supply unit and BP neural network learning subelement.
7., based on the charging of micro-capacitance sensor, an energy management method for energy storage integrated, its energy management system by the charging as claimed in claim 6 based on micro-capacitance sensor, energy storage integrated realizes, and it is characterized in that, in turn includes the following steps:
S1, main monitoring unit obtains various information, various information comprises distributed monitoring unit and gathers and the energy output information of the distributed generation unit sent, BMS unit gathers and the amount of power of the energy-storage units sent stores information, electric loading monitoring unit gathers and the electric loading information of the block supply unit sent, charging monitoring unit gathers and the charging pile running state information of the charhing unit sent, charge power demand information, charge mode information, metering and billing unit gathers and the electricity metering information of the charhing unit sent, Environment Monitor Unit gathers and the ambient parameter information of the distributed generation unit sent,
Various information in S2, main monitoring unit obtaining step S1, and generate and determine that the electricity needs value of charhing unit, distributed generation unit energy output, distributed generation unit are the decision value that charhing unit is powered; And decision value is sent to distributed generation unit, charhing unit, energy-storage units, block supply unit;
S3, judge the electricity needs value of charhing unit whether obtain distributed generation unit meet, when the requirements of charhing unit is met, jump to step S9, when the requirements of charhing unit is not met, jump to step S4;
The electric loading grade of S4, judging area power supply unit; When electric loading grade is 1 grade, jump to step S5; When electric loading grade is 2 grades, jump to step S6; When electric loading grade is 3 grades, jump to step S7;
S5, block supply unit suspend as charhing unit is powered; Distributed generation unit is that charhing unit is powered, if charhing unit is powered still have deficiency, then starting energy-storage units is that charhing unit is powered; Jump to step S8;
S6, distributed generation unit, block supply unit, energy-storage units are followed successively by charhing unit according to priority and power; Jump to step S8;
S7, distributed generation unit, block supply unit are that charhing unit is powered; Distributed generation unit, block supply unit are energy-storage units charging; Jump to step S8;
S8, continuation judge that whether the electricity needs of charhing unit is still jagged; If there is no breach, jump to step S9; If any still jagged, the quantity of charging pile used in restriction charhing unit also limits the charge mode of charging pile, jumps to step S9;
S9, terminate this electrical management flow process.
8., as claimed in claim 7 based on the charging of micro-capacitance sensor, the energy management method of energy storage integrated, it is characterized in that,
Described step S2 comprises successively:
State reads subelement and reads various information, read various information and comprise the energy output information reading the distributed generation unit that distributed monitoring unit sends, the amount of power reading the energy-storage units that BMS unit sends stores information, read the electric loading information of the block supply unit that electric loading monitoring unit sends, read the charging pile running state information of the charhing unit that charging monitoring unit sends, charge power demand information, charge mode information, read the electricity metering information of the charhing unit that metering and billing unit sends, read the ambient parameter information of the distributed generation unit that Environment Monitor Unit sends, and for various information is sent to storing sub-units,
Weights arrange the judgement weights that subelement arranges various information, and judgement weights are sent to process subelement;
Process subelement reads various information from storing sub-units, arrange subelement to read from weights and judge weights, according to judging that weights and the generation of various information determine that the electricity needs value of charhing unit, distributed generation unit energy output, distributed generation unit are the decision value that charhing unit is powered.
9. as claimed in claim 7 based on the charging of micro-capacitance sensor, the energy management method of energy storage integrated, it is characterized in that, described step S2 also comprises:
Decision value is sent to BP neural network learning subelement by process subelement;
BP neural network learning subelement receives the decision value that process subelement sends, and according to decision value to judging weights correction, sends to weights to arrange subelement revised weights.
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