CN110266053A - Contract energy services system based on multi-energy complementation - Google Patents
Contract energy services system based on multi-energy complementation Download PDFInfo
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- CN110266053A CN110266053A CN201910667035.3A CN201910667035A CN110266053A CN 110266053 A CN110266053 A CN 110266053A CN 201910667035 A CN201910667035 A CN 201910667035A CN 110266053 A CN110266053 A CN 110266053A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H02J3/383—
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- H02J3/386—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
-
- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a kind of contract energy services system based on multi-energy complementation, applied in industrial enterprise, it include: the distributed photovoltaic power generation subsystem for being built in enterprise infrastructure roof, for photovoltaic power generation, and the electric energy of generation is provided to the power distribution station of the enterprises, for enterprise use；The wind-power electricity generation subsystem being built in the enterprise is used for wind-power electricity generation, and the electric energy of generation is provided to the power distribution station of the enterprises, for enterprise use；The energy storage subsystem being built in the enterprise realizes that AC/DC transformation of electrical energy and power flow control by bidirectional converter, to provide AC/DC electric energy when the enterprises have a power failure；And the energy manages subsystem, for carrying out control operation to the distributed photovoltaic power generation subsystem, the wind-power electricity generation subsystem and the energy storage subsystem.The system can improve the energy source configuration of existing industrial enterprise, improve energy accounting, reduce energy consumption.
Description
Technical field
The present invention relates to field of energy source developing technology, in particular to a kind of contract energy based on multi-energy complementation
Service system.
Background technique
With the rapid development of social economy, non-renewable energy resources are increasingly depleted.And not with people's environmental consciousness
Disconnected enhancing, in social production life, energy-saving and environment-friendly demand is higher and higher.
Currently, multi-energy complementation and Energy Management Contract technology, due to its outstanding behaviours in terms of realizing energy-saving and emission-reduction,
Extensive concern and application, the especially application in distributed micro-capacitance sensor are obtained.
And how existing industrial enterprise to be transformed using multi-energy complementation and Energy Management Contract, so as to improve
The energy source configuration of existing industrial enterprise improves energy accounting, reduces energy consumption as a problem urgently to be resolved.
Above- mentioned information are only used for reinforcing the understanding to background of the invention, therefore it disclosed in the background technology part
It may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
In view of this, the present invention provides a kind of contract energy services system based on multi-energy complementation.
Other characteristics and advantages of the invention will be apparent from by the following detailed description, or partially by the present invention
Practice and acquistion.
According to an aspect of the present invention, a kind of contract energy services system based on multi-energy complementation is provided, factory is applied to
Mine enterprise, comprising: be built in the distributed photovoltaic power generation subsystem on enterprise infrastructure roof, be used for photovoltaic power generation, and will generate
Electric energy be provided to the power distribution stations of the enterprises, for enterprise use；Wind-power electricity generation being built in the enterprise
System is used for wind-power electricity generation, and the electric energy of generation is provided to the power distribution station of the enterprises, for enterprise use；
The energy storage subsystem being built in the enterprise realizes that AC/DC transformation of electrical energy and power flow control by bidirectional converter, with
When the enterprises have a power failure, AC/DC electric energy is provided；And the energy manage subsystem, respectively with the distributed photovoltaic
Power generation sub-system, the wind-power electricity generation subsystem and energy storage subsystem communication connection, for sending out the distributed photovoltaic
Electronic system, the wind-power electricity generation subsystem and the energy storage subsystem carry out data acquisition, and according to collected data to
The distributed photovoltaic power generation subsystem, the wind-power electricity generation subsystem and the energy storage subsystem send control instruction, with into
Row control operation.
According to an embodiment of the present invention, the system also includes: several large-size machine equipment, the large-size machine are set
Standby motor uses frequency changing driving system.
According to an embodiment of the present invention, the system also includes: using the lighting system of LED light source；The illumination
System further includes sound transducer and movable sensor, with when region nobody when close lighting apparatus.
According to an embodiment of the present invention, the distributed photovoltaic power generation subsystem includes: roof photovoltaic generation unit；
The roof photovoltaic generation unit includes: the first photovoltaic group being made of the factory roof color steel plate and metallic support of the enterprise
Part, more the first inverters and transformer；First photovoltaic module is electrically connected with first inverter, first inversion
The DC inverter that device exports first photovoltaic module is alternating current, and first inverter is as the low of the transformer
Side is pressed, the alternating current of output is linked on the high voltage bus of enterprise's power distribution station after transformer boosting by cable.
According to an embodiment of the present invention, first photovoltaic module is arranged using a*b vertical setting of types mode, every a*b block institute
It states the first photovoltaic module and constitutes a string of component strings, every c string component string is electrically connected with first inverter, every d platform
First inverter merges into the low-pressure side of a transformer；Wherein, described a, b, c, d are positive integer.
According to an embodiment of the present invention, the distributed photovoltaic power generation subsystem further include: bicycle shed photovoltaic power generation list
Member；The bicycle shed photovoltaic generation unit includes: the second photovoltaic module that steel construction forms at the top of the bicycle shed by the enterprise, more
Second inverter, multiple dynamic power distribution cabinets, more DC charging motors and more alternating-current charging piles；Second photovoltaic module and institute
The electrical connection of the second inverter is stated, the DC inverter that second inverter exports second photovoltaic module is alternating current,
Second inverter is electrically connected with the dynamic power distribution cabinet for being arranged in the bicycle shed, and the dynamic power distribution cabinet is to be arranged in the vehicle
The DC charging motor of canopy and the alternating-current charging pile provide power supply.
According to an embodiment of the present invention, second photovoltaic module is arranged using e*f vertical setting of types mode, every e*f block institute
It states the second photovoltaic and constitutes a string of component strings, every g string component string is electrically connected with second inverter, described in every h platform
Second inverter merges into the dynamic power distribution cabinet；The dynamic power distribution cabinet, the DC charging motor and the exchange are filled
Electric stake is all made of floor mounting type；Described e, f, g, h are positive integer.
According to an embodiment of the present invention, the wind-power electricity generation subsystem includes: more Wind turbines；Every wind
Motor group outlet side connects form wiring using cable " T ", and the electric energy of generation accesses on the low-voltage bus bar of enterprise's power distribution station.
According to an embodiment of the present invention, the energy control subsystem includes: server, work station and communication network
It closes；The server by the Communication Gateway and the distributed photovoltaic power generation subsystem, the wind-power electricity generation subsystem and
The energy storage subsystem communication connection, the work station and the server communication, so that staff passes through the work station
The user interface of offer to the distributed photovoltaic power generation subsystem, the wind-power electricity generation subsystem and the energy storage subsystem into
Line number is it is investigated that see, parameter configuration and manipulation.
According to an embodiment of the present invention, the energy control subsystem provides data acquisition, in real time/historical data connects
Enter, Data Management Analysis and data statistics show function.
The contract energy services system based on multi-energy complementation provided according to embodiments of the present invention, can melt various energy resources
Enter in the existing distribution system of enterprise, organic combination is carried out to the various energy, improves efficiency of energy utilization, and ensures that enterprise supplies
Electricity quality is reliable；In addition, in some embodiments, energy storage device is installed additional, also to the biggish motor of power load and lighting system
Carry out reducing energy consumption, reduction can energy consumption, improve enterprise's Power System Reliability, reduce enterprise energy cost.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Invention.
Detailed description of the invention
Its example embodiment is described in detail by referring to accompanying drawing, above and other target of the invention, feature and advantage will
It becomes more fully apparent.
Fig. 1 is a kind of contract energy services system based on multi-energy complementation shown according to an illustrative embodiments
Structural schematic diagram.
Fig. 2 is the structural schematic diagram of distributed photovoltaic power generation subsystem shown according to an exemplary embodiment.
Fig. 3 is the structural schematic diagram of wind-power electricity generation subsystem shown according to an exemplary embodiment.
Fig. 4 is the structural schematic diagram of energy storage subsystem shown according to an exemplary embodiment.
Fig. 5 is the structural schematic diagram of energy control subsystem shown according to an exemplary embodiment.
Fig. 6 is the operation curve figure according to the pump motor shown in an example.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the present invention will more
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Attached drawing is only the present invention
Schematic illustrations, be not necessarily drawn to scale.Identical appended drawing reference indicates same or similar part in figure, thus
Repetition thereof will be omitted.
In addition, described feature, structure or characteristic can be incorporated in one or more implementations in any suitable manner
In mode.In the following description, many details are provided to provide and fully understand to embodiments of the present invention.So
And it will be appreciated by persons skilled in the art that technical solution of the present invention can be practiced and omit one in the specific detail
Or more, or can be using other methods, constituent element, device, step etc..In other cases, it is not shown in detail or describes
Known features, method, apparatus, realization or operation are to avoid a presumptuous guest usurps the role of the host and each aspect of the present invention is made to thicken.
Fig. 1 is a kind of contract energy services system based on multi-energy complementation shown according to an illustrative embodiments
Structural schematic diagram.The system for example can be applied in industrial enterprise, so as to improve the energy source configuration of industrial enterprise, improve the energy
Utilization rate.
With reference to Fig. 1, which includes: distributed photovoltaic power generation subsystem 11, wind-power electricity generation subsystem 12, energy storage subsystem
System 13 and the energy manage subsystem 14.
Fig. 2 is the structural schematic diagram of distributed photovoltaic power generation subsystem shown according to an exemplary embodiment.
Joint refers to Fig. 1 and Fig. 2, and distributed photovoltaic power generation subsystem 11 includes: roof photovoltaic generation unit 111 and bicycle shed
Photovoltaic generation unit 112.
Roof photovoltaic generation unit 111 includes: the photovoltaic module 111a being made of roof color steel plate and metallic support, more
Inverter 111b and transformer 111c.
Photovoltaic module 111a is fixed on photovoltaic bracket by metallic briquette.Photovoltaic module 111a and more inverter 111b electricity
Connection.The DC inverter that inverter 111b exports photovoltaic module 111a is alternating current.More inverter 111b are as transformation
The low-pressure side of device 111c, the alternating current of output can access enterprise's power distribution station by modes such as cables after transformer 111c boosting
On the ac bus of 15 (as shown in Figure 1), realization is generated power for their own use, and is improved renewable energy proportion, is reduced grid electricity fee cost.
In some embodiments, metallic support can for example use diameter to tile for the aluminium alloy of 41mm*41mm*2.0mm
Type bracket.Aluminium alloy tiling type bracket and roof color steel plate can for example be carried out using standing-seam type metal Roof special fixture
It is fixed.Jaw thickness for example can be 4mm.The aluminium alloy briquetting that metallic briquette can for example be selected with a thickness of 4mm.
In some embodiments, photovoltaic module 111a can for example be pacified using a*b (for example, 2*11) vertical setting of types mode
Dress, the single crystal photovoltaic component of a*b block (such as 22 pieces) 1650mm*996mm*35mm of composition are a string.Every c (for example 16) string component
String merges into 1 80kW inverter 111b.800V DC inverter is three-phase 540V alternating current by inverter 111b；Every d is (for example
14) platform string type inverter 111b collects the low-pressure side of access 1000kVA transformer 111c, boosts to 10kV through transformer 111c
Voltage class.It is accessed on the 10kV bus of enterprise's power distribution station 15 nearby using modes such as cables.Wherein a, b, c, d are positive integer
Bicycle shed photovoltaic generation unit 112 includes: photovoltaic module 112a, the more inverters being made of steel construction at the top of bicycle shed
112b, multiple dynamic power distribution cabinet 112c, more DC charging motor 112d and more alternating-current charging pile 112e.
Photovoltaic module 112a is electrically connected with more inverter 112b.The direct current that inverter 112b exports photovoltaic module 112a
Electric inversion is alternating current.More inverter 112b are electrically connected with the dynamic power distribution cabinet 112c being arranged in bicycle shed.Dynamic power distribution cabinet
The power supply of 112c can be quoted from the 380V bus of enterprise's switchgear house.
DC charging motor 112d and alternating-current charging pile 112e are electrically connected with dynamic power distribution cabinet 112c, and power supply is all from dynamic
Power power distribution cabinet 112c.
The program is generated electricity using the steel construction composition photovoltaic module on bicycle shed roof, and by electricity caused by photovoltaic power generation
It can be used to charge to electric passenger vehicle, further realize and generate power for their own use.
In some embodiments, bicycle shed uses steel structural form.It each parking stall for example can be according to 5.5 meters long, wide
3.19 rice designs.Bicycle shed ceiling can be for example the high 10 ° of inclination angles design in the low north in south, can bear 0.55kN/m2Wind pressure load and
1kN/m2Snow load, 3 meters away from ground of minimum point at the top of bicycle shed.Bicycle shed basis uses strip footing form, such as using double columns, south
3.5 meters of north orientation column spacing, 6.38 meters of East and West direction column spacing.Column is for example all made of the H profile steel of 125mm*&125mm.
In some embodiments, the photovoltaic module 112a at the top of bicycle shed uses e*f (such as 3*7) vertical setting of types arrangement form, component
Having a size of 1650mm*996mm*35mm.The single crystal photovoltaic component 112a of e*f (such as 21) block 1650mm*996mm*35mm is a string,
Every g (such as 8) string component string merges into 1 40kW string type inverter 112b, inverter 112b and is by 800V DC inverter
380V three-phase alternating current.H (for example, 2) platform string type inverter 112b collects 1 power that bicycle shed scene is arranged in of access and matches
Electric cabinet 112c.Dynamic power distribution cabinet 112c is for example, by using floor mounting type.
In some embodiments, the friendship of the DC charging motor 112d and 6 7kW of 2 60kW for example be can configure in bicycle shed area
Current charge stake 112e can use floor mounting type, be arranged in one end (such as the North) of each parking stall.DC charging motor 112d
Power supply with alternating-current charging pile 112e can be quoted from dynamic power distribution cabinet 112c.DC charging motor 112d can for example use 1 machine 2
Mold filling formula, i.e. every charger 112d can charge simultaneously for 2 electric passenger vehicles.Alternating-current charging pile 112e can for example be adopted
With 1 machine, 1 mold filling formula, i.e., each charging pile 112e can only charge simultaneously for 1 electric passenger vehicle.
Fig. 3 is the structural schematic diagram of wind-power electricity generation subsystem shown according to an exemplary embodiment.
Joint refers to Fig. 1 and Fig. 3, and wind-power electricity generation subsystem 12 includes: more Wind turbines 121.
In some embodiments, such as 3 Wind turbines 121 can be set in the spacious area of plant area, enterprise.Each typhoon
Spacing is greater than 50 meters between motor group 121.The pylon of every Wind turbines 121 is for example 18 meters high, and 12.5 meters of rotor diameter, starting
3 meter per second of wind speed, 10 meter per second of rated wind speed, 3~25 meter per second of work wind speed, 50 meter per second of survival wind speed, output rated voltage are
The three-phase alternating current of 380V.Every 121 outlet side of Wind turbines connects form wiring for example, by using cable " T ", and the electric energy of generation is just
On the bus of nearly input enterprise's power distribution station 380V, realization is generated power for their own use.
Fig. 4 is the structural schematic diagram of energy storage subsystem shown according to an exemplary embodiment.
Energy storage subsystem 13 is used to provide standby power system for enterprise, and it may include: multiple that joint, which refers to Fig. 1 and Fig. 4,
Battery cupboard 131, control cabinet 132 and electrical confluence cabinet 133.
Wherein, it may include multiple battery cases in each battery cupboard 131, battery be housed in each battery case.Each battery case
Such as can be managed by 1 battery monitor unit, each battery cupboard 131 is managed by a set of battery management system.Battery cupboard
The electric current of 131 outputs is flowed on electrical confluence cabinet 133 by dc bus.Control cabinet 132 includes energy accumulation current converter (Power
Conversion System, PCS), for controlling the charging and discharging process of battery, and can be realized by bidirectional converter
AC/DC transformation of electrical energy and power flow control, such as can directly power in the case where no power grid for AC load.PCS
Power for example can be 0.5MW.Control cabinet 132 can also provide CAN communication and summarize interface for each battery cupboard 131, can be with
14 uploads of battery data of subsystem and relevant information are managed to the energy by Ethernet, also can receive under energy control subsystem 14
The control instruction of hair is charged the battery or is discharged according to the symbol of control instruction and size control.In addition, control cabinet 132
The status information of battery can also be obtained, is realized to battery protection charge and discharge, it is ensured that battery operation safety.
In some embodiments, battery for example can be ferric phosphate lithium cell, capacity 1MWh.Energy storage subsystem 13 is for example
It is made of the 30 ruler container subsystems of 1 0.5MW/1MWh, includes 7 battery cupboards, 1 control cabinet and 1 confluence cabinet.Every 16
The battery core of a 230Ah carries out in groups, forming 1 battery case by 1P16S mode, is managed by 1 battery monitor unit；14
Ferric phosphate battery case is connected into 1 battery cupboard, is managed by 1 set of battery management system.The dc bus of 7 battery cupboards is flowed to
On electrical confluence cabinet 133.
Fig. 5 is the structural schematic diagram of energy control subsystem shown according to an exemplary embodiment.
Joint refers to Fig. 1 and Fig. 5, and it includes: server 141, work station 142 and Communication Gateway that the energy, which manages subsystem 14,
143。
The energy manages subsystem 14 for each power subsystem to enterprise, such as distributed photovoltaic power generation subsystem 11, wind
Power power generation sub-system 12, energy storage subsystem 13, carry out control operation.Each power subsystem passes through Communication Gateway 143 and service
Device 141 is communicated, and the relevant information of each power subsystem is sent, and receives the control instruction of the transmission of server 141.Work station
142 communicate with server 141, and staff can check each power subsystem by the user interface that work station 142 provides
Situation, and the operation such as by user interface configured, manipulated.
Energy control 14 general frame of subsystem follows Enterprise SOA (SOA) design concept, using Multi-layers distributing
Formula architectural framework, general frame design specifically include that data acquisition, in real time/historical data access, Data Management Analysis, data
The functions such as statistics displaying.Wisdom energy management platform and user side energy management platform, electric car intelligent charge is supported to monitor
Platform, demand response/load mutually help the integrated of the platforms such as platform, micro- energy net monitor supervision platform, user side intelligence operation platform, lead to
The preposition service that foundation is crossed in isolated area (Demilitarized Zone, DMZ) interacts.
The data access of energy control subsystem 14 includes acquisition service, obtains user side energy management platform, electronic
Mutually help platform, micro- energy net monitor supervision platform, user side intelligence O&M of automobile intelligent charging monitoring platform, demand response/load is flat
The enterprise that data acquisition is not carried out during the data of platform and platform construction carries out the number that data are made a report on or batch imports
According to.
The energy control subsystem 14 software be made of station level and wall two parts, and be layered, be distributed, it is open
Network implementations connection.Station level device fails and stop transport, will not influence the normal operation of other layers.
The energy manages the TCP/IP connection that the exploited in communication of subsystem 14 can for example be established based on fiber optic network, group
At the Real Time Communication Network of a wide area, the real time communication between each field device and control centre's system is realized.
Further, it is also possible to be further transformed to the existing large-size machine of enterprise and lighting system.
Such as the motor of large-size machine equipment (such as water pump, blower, air compressor machine) can be transform as change by power frequency driving
Frequency drives, and retains power frequency bypass.Electric motor starting can reduce electric motor starting caused by power grid by the way of variable frequency starting
Impact.And motor speed is adjusted by adjusting frequency.For water pump, adjust motor speed can play regulating pondage,
The effect of hydraulic pressure；For blower, adjusting motor speed can play the role of adjusting air quantity, wind pressure.To improve large size
The service efficiency of motor device prolongs the service life.
By taking water circulating pump as an example, water pump rated power is 250kW, three-phase alternating current 380V power supply, the using and the reserved mode, transformation
It is preceding to be directly initiated for power frequency, it is installed on supervisor by being installed on the signal adjustment of pressure sensor and flow sensor of supervisor
Regulating valve achieve the purpose that adjust flow and pressure.
After transformation, two water circulating pumps (the using and the reserved) share the frequency converter of a 250kW, and in the case of config failure
The bypass loop of power frequency startup adjusts the confession of frequency converter by the signal of the pressure sensor and flow sensor that are installed on supervisor
Electric frequency, to achieve the purpose that adjust carrying capacity, the impact of motor, also energy saving when reducing starting.
It is briefly described as follows the principle of energy-saving and frequency-variable:
It learns, is loaded using the water pump of induction motor drive, shaft power P and flow Q, lift from hydromechanical principle
The relationship of H are as follows: P ∝ Q × H, when the revolving speed of motor changes to n2 by n1, the relationship of Q, H, P and revolving speed is as follows:
Q2=Q1* (n2/n1)；
H2=(n2/n1)2；
P2=p1* (n2/n1)3；
It can be seen that the revolving speed n of flow Q and motor be it is proportional, and required shaft power P and revolving speed cube at just
The relationship of ratio.For example, when needing 80% metered flow the revolving speed by adjusting motor is adjusted to the 80% of rated speed
Frequency is to 40Hz, and at this moment required power will only be original 51.2%.
The operation curve of water pump is as shown in fig. 6, when required flow is reduced to Q1 from Q2, if doing using control valve
Method, resistance of pipe system will will increase, and pipe system performance curve moves up, and the running operating point of system changes to new running operating point B from A point
Point operation, required shaft power P2 are directly proportional to area H2 × Q1；If pump rotary speed is dropped to by n1 using speed-regulating controling mode
N2, system-head curve do not change, but the characteristic curve of water pump will move down, therefore its running operating point A point moves to C point.
Required shaft power P3 and area H at this timeB× Q1 is directly proportional.It theoretically analyzes, the shaft power Delt (P) saved and (H2-HB)
The area of × Q1 is directly proportional.
When being transformed to enterprises lighting system, in meeting relevant criterion in terms of require premise
Under, the light source of suitable transformation can be replaced with into LED light source.Such as by the Metal halogen lamp of production district, Office Area and the section in living area
Energy lamp, incandescent lamp etc. are changed to LED etc..In addition, to the domain Chang Mingqu, such as thermal substation, substation, Office Area corridor, dormitory area
Corridor etc. can also install intelligence control system, including sound transducer and mobile biography additional other than replacement LED illumination transformation
Sensor etc., when region nobody when illumination be automatically closed.
LED light is to use LED as the lamp of light source, and light efficiency is higher.It has the characteristics that energy-efficient, and power consumption is general
The 1/10 of logical incandescent lamp, the 1/4 of energy-saving lamp, and also service life is longer.
Metal halogen lamp heat is big, and the driving voltage needed is high, and LED light is more environmentally friendly, without harmful substances such as mercury, has shorter
Reaction time；In addition, Metal halogen lamp can not be again turned on after having extinguishing and (need 3-5 minutes equal), power consumption is big, needs with town
The disadvantages of flowing device (relatively heavy) and service life ratio LED short.
Further, it is also possible to introduce gas electricity generator, waste heat pot in the contract energy services system based on multi-energy complementation
The Miniature Power Units such as furnace provide equipment, increase enterprise energy supply；Further, it may be incorporated into air conditioner energy conservation control system, cold
The a part as Energy Management Contract such as thermoelectricity trilogy supply, heat supply managing system, gas supply management system, also can be used as based on more
A part of the contract energy services system of energy complementation.
The contract energy services system based on multi-energy complementation provided according to embodiments of the present invention, can melt various energy resources
Enter in the existing distribution system of enterprise, organic combination is carried out to the various energy, improves efficiency of energy utilization, and ensures that enterprise supplies
Electricity quality is reliable；In addition, in some embodiments, energy storage device is installed additional, also to the biggish motor of power load and lighting system
Carry out reducing energy consumption, reduction can energy consumption, improve enterprise's Power System Reliability, reduce enterprise energy cost.
In addition, the contract energy services system provided in an embodiment of the present invention based on multi-energy complementation meets national energy-saving production
Industry demand for development meets local society economic development and the needs of preserving the ecological environment, and realizes energy conservation conducive to the enterprise of production
Emission reduction targets, while user's energy cost is reduced, realize the requirement of comprehensive energy service.The present invention uses Energy Management Contract mould
Formula is organized and implemented, and is carried out the construction of comprehensive energy service item, has been innovated comprehensive energy service item unfolding model, is comprehensive energy
Control service provides new approaches.The present invention merges distributed photovoltaic power generation technology, distributed wind-power generator technology, electrochemistry storage
The technical measures such as energy technology, electric car charging technique, motor frequency conversion technology, green lighting technique, informationization and control technology,
It realizes spontaneous electricity, benefit of peak regulation, save the purpose of electricity.The present invention is based on energy control platforms to carry out enterprise's load management,
Reducing enterprise's maximum needs energy, and application adjustment basic charge as per installed capacity charging mode is applied to install electricity consumption policy using expansion to greatest extent, adjusted in due course
The whole maximum demand amount of declaring, so that enterprise's basic charge as per installed capacity expenditure be greatly decreased.Realized by energy control platform to big motor and
The automatic monitoring and control of illumination, combining environmental and production need rationally setting and in time adjustment operating parameter, rationally control electricity
Machine and illumination start and stop, adjust motor speed etc., power consumption are reduced, to reduce electric cost expenditure.Also by energy control platform
It may be implemented to functions such as the repairs based on condition of component of equipment, to reduce business equipment O&M maintenance expense, reduce establishment expense expenditure.
It will be clearly understood that the present disclosure describe how being formed and using particular example, but the principle of the present invention is not limited to
These exemplary any details.On the contrary, the introduction based on present disclosure, these principles can be applied to many other
Embodiment.
It is particularly shown and described exemplary embodiments of the present invention above.It should be appreciated that the present invention is unlimited
In detailed construction described herein, set-up mode or implementation method；On the contrary, it is intended to cover included in appended claims
Spirit and scope in various modifications and equivalence setting.
Claims (10)
1. a kind of contract energy services system based on multi-energy complementation is applied in industrial enterprise characterized by comprising
It is built in the distributed photovoltaic power generation subsystem on enterprise infrastructure roof, is used for photovoltaic power generation, and the electric energy of generation is mentioned
It is supplied to the power distribution station of the enterprises, for enterprise use；
The wind-power electricity generation subsystem being built in the enterprise is used for wind-power electricity generation, and the electric energy of generation is provided to the enterprise
Internal power distribution station, for enterprise use；
The energy storage subsystem being built in the enterprise realizes AC/DC transformation of electrical energy and power flow control by bidirectional converter
System, to provide AC/DC electric energy when the enterprises have a power failure；And
The energy manage subsystem, respectively with the distributed photovoltaic power generation subsystem, the wind-power electricity generation subsystem and the storage
Energy subsystem communication connection, for the distributed photovoltaic power generation subsystem, the wind-power electricity generation subsystem and the energy storage
Subsystem carries out data acquisition, and according to collected data to the distributed photovoltaic power generation subsystem, the wind-power electricity generation
Subsystem and the energy storage subsystem send control instruction, to carry out control operation.
2. system according to claim 1, which is characterized in that further include: several large-size machine equipment, the large-size machine
The motor of equipment uses frequency changing driving system.
3. system according to claim 1 or 2, which is characterized in that further include: using the lighting system of LED light source；It is described
Lighting system further includes sound transducer and movable sensor, with when region nobody when close lighting apparatus.
4. system according to claim 1, which is characterized in that the distributed photovoltaic power generation subsystem includes: roof light
Lie prostrate generator unit；The roof photovoltaic generation unit includes: to be made of the factory roof color steel plate and metallic support of the enterprise
The first photovoltaic module, more the first inverters and transformer；First photovoltaic module is electrically connected with first inverter,
The DC inverter that first inverter exports first photovoltaic module is alternating current, and first inverter is as institute
The low-pressure side of transformer is stated, the alternating current of output is linked into enterprise's power distribution station by cable after transformer boosting
High voltage bus on.
5. system according to claim 4, which is characterized in that first photovoltaic module is arranged using a*b vertical setting of types mode,
First photovoltaic module described in every a*b block constitutes a string of component strings, and every c string component string is electrically connected with first inverter
It connects, the first inverter described in every d platform merges into the low-pressure side of a transformer；Wherein, described a, b, c, d are positive whole
Number.
6. system according to claim 4, which is characterized in that the distributed photovoltaic power generation subsystem further include: bicycle shed
Photovoltaic generation unit；The bicycle shed photovoltaic generation unit includes: the second light that steel construction forms at the top of the bicycle shed by the enterprise
Lie prostrate component, more the second inverters, multiple dynamic power distribution cabinets, more DC charging motors and more alternating-current charging piles；Described second
Photovoltaic module is electrically connected with second inverter, and the direct current that second inverter exports second photovoltaic module is inverse
Become alternating current, second inverter is electrically connected with the dynamic power distribution cabinet for being arranged in the bicycle shed, and the dynamic power distribution cabinet is
The DC charging motor and the alternating-current charging pile for being arranged in the bicycle shed provide power supply.
7. system according to claim 6, which is characterized in that second photovoltaic module is arranged using e*f vertical setting of types mode,
Second photovoltaic described in every e*f block constitutes a string of component strings, and every g string component string is electrically connected with second inverter,
Second inverter described in every h platform merges into the dynamic power distribution cabinet；The dynamic power distribution cabinet, the DC charging motor and institute
It states alternating-current charging pile and is all made of floor mounting type；Described e, f, g, h are positive integer.
8. system according to claim 1, which is characterized in that the wind-power electricity generation subsystem includes: more Wind turbines；
Every Wind turbines outlet side connects form wiring using cable " T ", and the electric energy of generation accesses the low of enterprise's power distribution station
It presses on bus.
9. system according to claim 1, which is characterized in that the energy control subsystem includes: server, work station
And Communication Gateway；The server passes through the Communication Gateway and the distributed photovoltaic power generation subsystem, the wind-power electricity generation
Subsystem and energy storage subsystem communication connection, the work station and the server communication, so that staff passes through institute
The user interface of work station offer is stated to the distributed photovoltaic power generation subsystem, the wind-power electricity generation subsystem and the energy storage
Subsystem carry out data check, parameter configuration and manipulation.
10. system according to claim 9, which is characterized in that the energy control subsystem provides data and acquires, is real
When/historical data access, Data Management Analysis and data statistics displaying function.
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