CN106385042B - A kind of network type energy-storage system and its progress control method applied to micro-capacitance sensor - Google Patents
A kind of network type energy-storage system and its progress control method applied to micro-capacitance sensor Download PDFInfo
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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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- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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Abstract
The present invention discloses a kind of network type energy-storage system applied to micro-capacitance sensor, including network type energy storage control platform, centralized energy storage device and more than two distributed energy storage device, the centralization energy storage device is connected at subscriber's drop high voltage bus, and the distributed energy storage device is connected at power load low-voltage bus bar；The network type energy storage control platform includes data monitoring module and real time analysis module, and the real time analysis module is connect with the data monitoring module, after high voltage bus occurs beyond the fluctuation of defined power quality parameter, assigns the action command of whole system；After subscriber's drop side low-voltage bus bar occurs beyond the fluctuation of defined power quality parameter, the action command for distributed energy storage is assigned.The micro-capacitance sensor form that the present invention is applicable in includes the forms such as new energy micro-capacitance sensor, active power distribution network and general power distribution network, and it is more rationally effective to stabilize processing to power fluctuation.
Description
Technical field
The present invention relates to a kind of network type energy-storage system and its energy storage methods, more particularly relate to a kind of applied to micro-capacitance sensor
Network type energy-storage system and its progress control method.
Background technique
Energy storage technology is broadly divided into physics energy storage (such as draw water energy storage, compressed-air energy storage, flywheel energy storage), chemical energy storage
(such as superconducting magnetic energy storage surpasses for (such as lead-acid battery, redox flow batteries, sodium-sulphur battery, lithium ion battery) and Power Flow
Grade capacitor energy storage etc.) three categories.The characteristics of according to various energy storage technologies, flywheel energy storage, superconducting magnetic energy storage and super capacitor
Device energy storage is suitable for needing to provide biggish pulse power occasion in short-term, such as copes with voltage dip and instantaneous power-off, improves user
Power quality, inhibit low-frequency oscillation of electric power system, improve system stability etc.；And energy storage of drawing water, compressed-air energy storage and electricity
Chemical cell energy storage is suitable for peak-load regulating, large-scale emergency power supply, renewable energy and extensive, large capacity the applied field such as is incorporated to
It closes.But the electric energy wide variety of current new energy power grid fusion, energy fluctuation is big, and it is unstable to easily cause electric energy, exists
Security risk.
Summary of the invention
Goal of the invention: present invention aims in view of the deficiencies of the prior art, provide one kind to avoid power quality parameter wave
It is dynamic, reduce the network type energy-storage system applied to micro-capacitance sensor of security risk.
Meanwhile the present invention also provides a kind of a kind of network type storage energy operation controls applied to micro-capacitance sensor to solve the above problems
Method processed.
Technical solution: a kind of network type energy-storage system applied to micro-capacitance sensor of the present invention, including network type energy-storage tube
Control platform, centralized energy storage device and more than two distributed energy storage device, the distributed energy storage device are connected to power load
At low-voltage bus bar；The centralization energy storage device is connected at subscriber's drop high voltage bus；
The network type energy storage control platform for regulate and control power quality parameter fluctuation, including data monitoring module and in real time
Analysis module, the data monitoring module are connect by communication interface with the subscriber's drop high voltage bus, at the same with the collection
Chinese style energy storage device is connected with the distributed energy storage device；The real time analysis module is connect with the data monitoring module,
After high voltage bus occurs beyond the fluctuation of defined power quality parameter, the action command of whole system is assigned；Work as subscriber's drop
Side low-voltage bus bar occurs assigning the action command for distributed energy storage beyond after the fluctuation of defined power quality parameter.
The technical solution of the present invention is further defined as further include microgrid energy control platform, the microgrid energy control
Platform is connect with the network type energy storage control platform, while being connect with the subscriber's drop high voltage bus, and the network is received
The data of formula energy storage control platform, and send a command to the network type energy storage control platform.
Further, the centralized energy storage device and distributed energy storage device respectively include: lead-acid battery, sodium sulphur electricity
Pond, flow battery, lead carbon battery, lithium system battery, nickel system battery, water-storage device, energy accumulation device for fly wheel, compressed-air energy storage
Device, superconducting magnetic energy storage, super capacitor.
Further, power quality parameter fluctuation includes: frequency departure, voltage deviation, voltage fluctuation and flicker, and three
It is mutually uneven, instantaneous or transient overvoltage, wave distortion, voltage dip, interruption and temporary liter.
A kind of another technical solution provided by the invention are as follows: operation control of the network type energy-storage system applied to micro-capacitance sensor
Method, which is characterized in that fluctuated for the power quality generated under grid connection state, by being classified the processing mode calmed down, by wave
Dynamic scope control is in minimum zone, specific processing method are as follows:
For localised waving, carry out that charge and discharge is electrically operated to stabilize first with nearest distributed energy storage device, if failed
At stabilizing, then information is fed back into network type energy storage control platform, network type energy storage control platform utilizes other neighbouring distributions
Formula energy storage device carries out fluctuation and stabilizes；It is not completed also if fluctuation is stabilized, network type energy storage control platform continues through concentration
Formula energy storage device carries out fluctuation and stabilizes；It is not completed also if fluctuation is stabilized, the network type energy storage control platform uploads specific
Power quality parameter and fluctuation information feed back to microgrid energy control platform；
Main line is fluctuated, network type energy storage control platform assigns instruction to each distributed energy storage device, it is desirable that will run
Status information feedback is to the network type energy storage control platform；Then, it first passes through centralized energy storage device and stabilizes fluctuation, if wave
It is dynamic not stabilized, then fluctuation is stabilized by each distributed energy storage device；It is not completed also if fluctuation is stabilized, the network type storage
Energy control platform uploads specific power quality parameter and fluctuation information feeds back to microgrid energy control platform.
The technical program is further defined to, and further includes the processing side of the power fluctuation for generating under off-network state
Formula, specifically: microgrid energy control platform assigns instruction to each distributed energy storage device and centralized energy storage device, it is desirable that will work as
Preceding operating status feeds back to microgrid energy control platform, and centralized energy storage device is set to off-network mode by microgrid energy control platform
The spike power supply or reference power supply of lower system operation undertake the effect of the micro-capacitance sensors runing adjustment such as peak regulation, frequency modulation, pressure regulation or provide only
Basic parameters, the network type energy storage control platforms such as voltage, frequency, phase needed for vertical micro-capacitance sensor operation are important according to different load
The requirement of grade and power-on time cooperates each distributed power generation unit to carry out the operation of charge and discharge.
Further, which is characterized in that the network type energy storage control platform carries out the strategy of the electrically operated use of charge and discharge are as follows:
Charge and discharge are carried out using local distributed energy storage device nearby first, if not being able to satisfy load power reguirements, are recycled neighbouring
Distributed energy storage device carries out charge and discharge, if also failing to meet load power reguirements, centralized energy storage device is recycled to carry out
Charge and discharge.
The utility model has the advantages that a kind of network type energy-storage system and its operation controlling party applied to micro-capacitance sensor provided by the invention
Method, applicable micro-capacitance sensor form include the forms such as new energy micro-capacitance sensor, active power distribution network and general power distribution network, energy storage side
Formula, setting position have diversity, and the energy storage mode combined using centralization with distribution is complementary to one another, is supported, by electric energy matter
Undulated control is measured in minimum zone；The present invention uses network type management mode, each distributed energy storage device, centralized energy storage dress
It sets and forms contact and feedback between network type energy storage control platform and microgrid energy control platform, power quality fluctuation is stabilized
Processing is more rationally effective；Network type energy storage framework of the invention more adapts to generation of electricity by new energy and intervenes on a large scale and off-grid operation
Situation pushes micro-capacitance sensor application practice energetically, also, the mode of network type energy storage will be helpful to local peak regulation, in conjunction with peak-trough electricity
Valence policy.
Detailed description of the invention
Fig. 1 is the architecture diagram of the network type energy-storage system provided by the invention applied to micro-capacitance sensor；
Fig. 2 is the progress control method of the network type energy-storage system provided by the invention applied to micro-capacitance sensor in grid connection state
Under work flow diagram；
Fig. 3 is the progress control method of the network type energy-storage system provided by the invention applied to micro-capacitance sensor in off-network state
Under work flow diagram；
Fig. 4 is office block network type energy-storage system architecture diagram in embodiment 1.
Specific embodiment
Technical solution of the present invention is described in detail below by attached drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment 1: a kind of network type energy-storage system applied to micro-capacitance sensor is applied to region micro-capacitance sensor, is the micro- electricity in region
One subsystem of net managing and control system, architecture diagram is as shown in Figure 1, include network type energy storage control platform, centralized energy storage dress
It sets and more than two distributed energy storage device.
The distributed energy storage device is connected at power load voltage bus.Distributed energy storage device form multiplicity, can
Corresponding stored energy form, including lead-acid battery, sodium-sulphur battery, flow battery, lead are equipped with according to load concrete condition or application scenarios
Carbon battery, lithium system battery, nickel system battery, water-storage device, energy accumulation device for fly wheel, compression air energy-storing apparatus, superconducting energy storage
The position of device, super capacitor etc., distributed energy storage device can also need to change according to load.
The centralization energy storage device is connected at subscriber's drop high voltage bus, and centralized energy storage device also includes plumbic acid electricity
Pond, sodium-sulphur battery, flow battery, lead carbon battery, lithium system battery, nickel system battery, water-storage device, energy accumulation device for fly wheel, pressure
Contracting air energy storage device, superconducting magnetic energy storage, super capacitor etc..
The centralization energy storage and the selection of distributed energy storage device, collocation and optimum organization, can be according to applied micro-
Power grid architecture and actual load situation determine.
The network type energy storage control platform is for regulating and controlling power quality parameter fluctuation, by regulating and controlling power quality parameter wave
It is dynamic, guarantee the stable operation of micro-grid system.Including data monitoring module and real time analysis module.The data monitoring module is logical
Communication interface is crossed to connect with the subscriber's drop high voltage bus, at the same with the centralized energy storage device and the distributed energy storage
Device connection, monitors the operating status of high voltage bus and each energy storage device.The real time analysis module and the data monitoring mould
Block connection, analyzes storing data, after high voltage bus occurs beyond the fluctuation of defined power quality, assigns the dynamic of whole system
It instructs；After subscriber's drop side low-voltage bus bar occurs beyond the fluctuation of defined power quality, assign for distributed energy storage
Action command.In addition, the network type energy storage control platform further includes local data storage module, by the above-mentioned operation monitored
Data are stored in local.The power quality parameter fluctuation includes: frequency departure, voltage deviation, voltage fluctuation and flicker, three-phase
Imbalance, instantaneous or transient overvoltage, wave distortion, voltage dip, interruption and temporary liter.
And this system further includes microgrid energy control platform, the microgrid energy control platform and the network type energy storage
Control platform connection, while being connect with the subscriber's drop high voltage bus, the data of the network type energy storage control platform are received,
And send a command to the network type energy storage control platform.
A kind of progress control method of network type energy-storage system applied to micro-capacitance sensor provided in this embodiment, whole process
In, network type energy storage control platform receive higher level's microgrid control platform instruction, and Real-time Feedback fluctuation processing information and as a result, its
Working condition is divided into grid connection state and off-network state.
For the power quality fluctuation generated under grid connection state, by being classified the processing mode calmed down, by fluctuation range control
For system in minimum zone, the flow chart of specific processing method is as shown in Figure 2:
For localised waving, carry out that charge and discharge is electrically operated to stabilize first with nearest distributed energy storage device, if failed
At stabilizing, then information is fed back into network type energy storage control platform, then network type energy storage control platform utilizes other neighbouring points
Cloth energy storage device carries out fluctuation and stabilizes；It is not completed also if fluctuation is stabilized, network type energy storage control platform continues through collection
Chinese style energy storage device carries out fluctuation and stabilizes；It is not completed also if fluctuation is stabilized, the network type energy storage control platform uploads tool
Body power quality parameter and fluctuation information feed back to microgrid energy control platform.
Distributed energy storage device has a set of management system of its own, can be by its status information feedback extremely by communication interface
Network type energy storage control platform；Fluctuation, which is stabilized, is intended to, storage or release electric energy, to reach electrically operated by energy-storage system charge and discharge
Purpose is stabilized, main criterion is power quality parameter here, and there is specific regulation in Utilities Electric Co. to power quality, and different negative
Charged energy quality requirement is also variant, needs the power quality based on different load, different scenes that progress different parameters is required to set
It is fixed.
User side impact load or the movement of continuity important load generate local power quality fluctuation, distributed energy storage
The starting of system itself monitoring system carries out charge and discharge movement according to energy storage state and power quality parameter.If being grasped by charge and discharge
Make effectively control fluctuation, then stabilizes on the spot；If being unable to reach power quality requirement, pass through communication system to network type energy-storage tube
It controls platform and issues signal, control platform analyzes other distributed energy storage states nearby first, utilizes adjacent distributions formula energy-storage system
Fluctuation is carried out to stabilize；If neighbouring energy-storage system still cannot achieve target, network type energy storage control platform is fed back to, collection is continued through
Chinese style energy-storage system is stabilized, if the fluctuation generated still can not stabilize, specific power quality parameter and fluctuation are believed
Breath feeds back to higher level's control platform.
Main line is fluctuated, assigns instruction to each distributed energy storage device, it is desirable that is fed back to operation state information described
Network type energy storage control platform；Then, it first passes through centralized energy storage device and stabilizes fluctuation, if fluctuation is not stabilized, then pass through
Each distributed energy storage device stabilizes fluctuation；It is not completed also if fluctuation is stabilized, the network type energy storage control platform uploads tool
Body power quality parameter and fluctuation information feed back to microgrid energy control platform.
When new energy distributed power generation accesses, especially the larger situation of access capacity, main line can accordingly generate larger fluctuation.
Network type energy storage control platform is based on to high voltage bus electric energy quality monitoring and receives the instruction of higher level's control platform, analyzes each distribution
Formula energy storage state calms down fluctuation by centralization energy-storage system first, if being unable to reach target call, passes through each distributed storage
Energy system calms down fluctuation again, if being still unable to reach target call, specific power quality parameter and fluctuation information are fed back
To higher level's control platform.
For off-network state, network type energy-storage system, which undertakes, to be stabilized fluctuation and sets as power generating source cooperation distributed power generation
The task of standby continuous systems power supply.For flow chart such as Fig. 3 of the processing mode of the power quality fluctuation generated under off-network state
It is shown, specifically: superior instructions are monitored or received by bus, and confirmation system is in off-network state, each distributed and centralization
Energy-storage system feeds back respective status information, and network type energy storage platform assigns instruction to each distributed energy storage device and centralized energy storage
Device, it is desirable that current operating conditions are fed back into microgrid energy control platform, microgrid energy control platform fills centralized energy storage
The spike power supply or reference power supply for being set to that system is run under off-network mode are set, the operation of the micro-capacitance sensors such as peak regulation, frequency modulation, pressure regulation is undertaken and adjusts
The basic parameters such as voltage, frequency, phase needed for section acts on or provide independent micro-capacitance sensor operation, network type energy storage control platform root
According to the requirement of different load important level and power-on time, each distributed power generation unit is cooperated to carry out the operation of charge and discharge.It is described
The strategy of the network type energy storage control platform progress electrically operated use of charge and discharge are as follows: first nearby using local distributed energy storage device into
Row charge and discharge recycle adjacent distributions formula energy storage device to carry out charge and discharge, if also not if not being able to satisfy load power reguirements
Load power reguirements are able to satisfy, centralized energy storage device is recycled to carry out charge and discharge.The processing result of charge and discharge feeds back to microgrid
Energy control platform.
For the present embodiment by taking an office block as an example, load specifically includes that data center, elevator, fire-fighting equipment, security protection
Equipment and general load.Building power supply is provided by alternating current and generation of electricity by new energy, and generation of electricity by new energy includes photovoltaic power generation and day
Right gas distributed power generation.
For data center, belong to special important load in first order load, uninterrupted power supply requirement need to be met, configures lead charcoal
Battery energy storage system；Elevator belongs to impact load, belongs to first order load, and Fire lift is even more that power supply is kept in fire,
Configure super capacitor energy-storage system；Security device and emergency lighting belong to first order load, and need low-voltage DC supply, meet not
Interruptedly supplying power requirement, capacity is generally little, configures lithium battery energy storage battery system.
In building 10KV high voltage power distribution room, configuration lead carbon battery is as centralized energy-storage system, network type energy storage control
Equipment may be arranged in building fire protection control room.
The above analysis, office block network type energy-storage system architecture diagram are as shown in Figure 4.
For localised waving:
By taking elevator starts as an example: elevator start-up course generates higher dash current, and voltage wave occurs in low-voltage alternating-current bus
It is dynamic, it configures after the super capacitor system on the ac bus monitors fluctuation, reports electric energy to network type energy storage control platform
Parameter information simultaneously issues request action instruction according to current operating conditions, and after obtaining control platform action command, super capacitor is dynamic
Make, calms down voltage fluctuation, result is reported to network type energy storage control platform.
If electrical energy parameter is not up to reasonable interval range (voltage fluctuation deviation range is nominal voltage -5% ~+5%), net
Network formula energy storage control platform is issued to neighbouring data center's lead carbon battery system and is instructed, it is enabled to report current operating conditions, according to
After the judgement of its SOC value can act, action command is issued, lead carbon battery is enabled to act, carried out voltage and calm down, result is reported to net
Network formula energy storage control platform.
If electrical energy parameter is still not up to reasonable interval range, network type energy storage control platform issues order, and starting is concentrated
Formula energy-storage system carries out fluctuation and calms down, and reports that network type energy storage control platform, network type energy storage control is flat for final result
Platform by this as a result, either calm down success or failure, report to microgrid energy control platform.
Main line is fluctuated:
In a distributed manner for photovoltaic power generation access: when distributed photovoltaic power generation accesses, 10KV main line generates voltage fluctuation, net
Network formula energy storage control platform reports the high voltage bus electrical energy parameter monitored to microgrid energy control platform, flat receiving voltage
After multiple instruction, acted:
All energy-storage system report current operating conditions are ordered first, start centralized energy-storage system, are carried out fluctuation and are calmed down,
Result is reported to network type energy storage control platform.
If electrical energy parameter be not up to reasonable interval requirement (mains frequency deviation range be -0.2 ~+0.2Hz of benchmark frequency, three
Phase voltage deviation range is nominal voltage -7% ~+7%), then it orders each distributed energy storage system successively to act, carries out fluctuation and calm down,
Result is reported to network type energy storage control platform.
If being still unable to reach target call, current power quality parameter and fluctuation information are fed back into microgrid energy pipe
Control platform.
For off-network state:
By taking mains failure as an example: when network type energy-storage system detects that alternating current disappears or reception microgrid energy control platform refers to
It enables, network type energy-storage system enters off-grid operation mode.
Firstly, network type energy storage control platform, which assigns instruction to each energy-storage system, reports current operating conditions, and feed back to
Centralized energy storing and electricity generating frequency is positioned system under off-network mode and runs base by microgrid energy control platform, microgrid energy control platform
Quasi- frequency.Network type energy storage control platform is instructed according to microgrid energy control platform, according to different load importance rate and confession
Electric time requirement, cooperation distributed generation system are acted:
Distributed energy storage system acting guarantees the load uninterrupted power supply for having duration power reguirements, and can transport estimated
The row time reports to network type energy storage control platform.When being unable to satisfy load power reguirements for distributed energy storage system, network
Formula energy-storage system assigns instruction, centralized energy-storage system movement, and result is reported to network type energy storage control platform, network type
This result is fed back to microgrid energy control platform by energy storage control platform.
As described above, must not be explained although the present invention has been indicated and described referring to specific preferred embodiment
For the limitation to invention itself.It without prejudice to the spirit and scope of the invention as defined in the appended claims, can be right
Various changes can be made in the form and details for it.
Claims (3)
1. a kind of progress control method of the network type energy-storage system applied to micro-capacitance sensor, which is characterized in that for grid connection state
The power quality of lower generation fluctuates, specific to locate by fluctuation range control in minimum zone by being classified the processing mode calmed down
Reason method are as follows:
For localised waving, carry out that charge and discharge is electrically operated to stabilize first with nearest distributed energy storage device, if failing to complete flat
Suppression, then feed back to network type energy storage control platform for information, and network type energy storage control platform utilizes other neighbouring distribution storages
Energy device carries out fluctuation and stabilizes；It is not completed also if fluctuation is stabilized, network type energy storage control platform continues through centralized storage
Energy device carries out fluctuation and stabilizes；It is not completed also if fluctuation is stabilized, the network type energy storage control platform uploads specific electric energy
Mass parameter and fluctuation information feed back to microgrid energy control platform；
Main line is fluctuated, network type energy storage control platform assigns instruction to each distributed energy storage device, it is desirable that by operation state
Information feeds back to the network type energy storage control platform；Then, it first passes through centralized energy storage device and stabilizes fluctuation, if fluctuation is not
It is stabilized, then fluctuation is stabilized by each distributed energy storage device；It is not completed also if fluctuation is stabilized, the network type energy-storage tube
Control platform uploads specific power quality parameter and fluctuation information feeds back to microgrid energy control platform.
2. a kind of progress control method of network type energy-storage system applied to micro-capacitance sensor according to claim 1, special
Sign is, further includes the processing mode of the power fluctuation for generating under off-network state, specifically: under microgrid energy control platform
Up to instruction to each distributed energy storage device and centralized energy storage device, it is desirable that current operating conditions are fed back to microgrid energy control
Centralized energy storage device is set to the spike power supply or benchmark electricity that system is run under off-network mode by platform, microgrid energy control platform
Source undertakes peak regulation, frequency modulation, the effect of pressure regulation micro-capacitance sensor runing adjustment or provides the required voltage of independent micro-capacitance sensor operation, frequency, phase
Position basic parameter, network type energy storage control platform cooperate each distribution according to the requirement of different load important level and power-on time
The operation of formula power generator progress charge and discharge.
3. a kind of progress control method of network type energy-storage system applied to micro-capacitance sensor according to claim 2, special
Sign is that the network type energy storage control platform carries out the strategy of the electrically operated use of charge and discharge are as follows: utilizes local distribution nearby first
Formula energy storage device carries out charge and discharge, if not being able to satisfy load power reguirements, adjacent distributions formula energy storage device is recycled to be filled
Electric discharge recycles centralized energy storage device to carry out charge and discharge if also failing to meet load power reguirements.
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| CN106972530A (en) * | 2017-04-21 | 2017-07-21 | 句容市宝启电子科技有限公司 | A kind of intelligent distributed electric power system |
| CN107134803A (en) * | 2017-04-21 | 2017-09-05 | 句容市宝启电子科技有限公司 | A kind of distributed power generation optimizes system |
| CN109256791B (en) * | 2018-10-24 | 2022-02-15 | 科华恒盛股份有限公司 | Power control method and power control equipment of energy storage unit |
| CN110492505B (en) * | 2019-07-29 | 2020-12-22 | 华南理工大学 | Power system primary frequency modulation method considering distributed energy storage |
| CN111934438A (en) * | 2020-06-18 | 2020-11-13 | 浙江大学 | New energy micro-grid composite energy storage system and method |
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