CN110365044A - A kind of micro-capacitance sensor multimode self-adaptive wavelet base system - Google Patents
A kind of micro-capacitance sensor multimode self-adaptive wavelet base system Download PDFInfo
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- CN110365044A CN110365044A CN201910587498.9A CN201910587498A CN110365044A CN 110365044 A CN110365044 A CN 110365044A CN 201910587498 A CN201910587498 A CN 201910587498A CN 110365044 A CN110365044 A CN 110365044A
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- 238000004146 energy storage Methods 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000003993 interaction Effects 0.000 claims abstract description 11
- 238000011217 control strategy Methods 0.000 claims description 11
- 238000007665 sagging Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 206010021703 Indifference Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- H02J13/0013—
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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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- H02J3/382—
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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
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/14—Energy storage units
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention provides a kind of micro-capacitance sensor multimode self-adaptive wavelet base systems, including human-computer interaction interface, micro electric network coordination controller, detection and control terminal, micro source controller, energy storage controller and load governor, the human-computer interaction interface is used to issue control command to the micro electric network coordination controller, and the micro electric network coordination controller receives the data of the detection and control terminal, the detection and control terminal and the control instruction of the micro electric network coordination controller is sent to the micro source controller, the energy storage controller and the load governor.The coordinated control system can grasp the operation conditions of micro-capacitance sensor in real time, and can realize that micro-capacitance sensor smoothly switches under various states according to micro-capacitance sensor operating status, each micro battery of coordinated control, energy storage device and load.
Description
Technical field
The present invention relates to micro-capacitance sensor control field, in particular to a kind of micro-capacitance sensor multimode self-adaptive wavelet base system.
Background technique
With the fast development of world economy and the continuous improvement of people's quality of life, demand of the countries in the world to the energy
Amount is just gradually increased.But these conventional energy resources cause very big pollution to ecological environment, make the very serious life of facing mankind
State problem.It must to realize the sustainable development of economy and human society to solve energy shortage and environmental pollution this two large problems
Novel fungible energy source must be greatly developed.In recent years, the renewable energy such as solar energy and wind energy it is pollution-free with its, it is inexhaustible,
The features such as nexhaustible, is increasingly becoming the ideal alternative energy source of traditional fossil energy.But by group based on renewable energy
At micro-capacitance sensor there are a variety of methods of operation, need to formulate reliable and complicated micro-capacitance sensor control strategy.
Traditional micro-capacitance sensor controller is based on electric system frequency modulation frequency modulation principle, to the control of the frequency of micro battery, it can be achieved that
The power distribution of indifference frequency modulation, but the effect for needing to select suitable control parameter that could preferably realize indifference frequency modulation.In addition,
Practical micro-capacitance sensor from grid-connected into unplanned isolated island handoff procedure, traditional micro-capacitance sensor controller main control unit relatively difficult to achieve is by function
Rate control switchs to V/F control, also less to consider that micro-capacitance sensor accesses the influence to major network.
Summary of the invention
In place of solving above-mentioned the deficiencies in the prior art, the purpose of the present invention is to provide a kind of micro-capacitance sensor multimodes certainly
Coordinated control system is adapted to, realizes self-adaptive wavelet base of the micro-capacitance sensor power supply under multiple working conditions.
To achieve the goals above, described the present invention provides a kind of micro-capacitance sensor multimode self-adaptive wavelet base system
Micro-capacitance sensor multimode self-adaptive wavelet base system includes human-computer interaction interface, micro electric network coordination controller, detection and control terminal, micro- electricity
Source controller, energy storage controller and load governor, the human-computer interaction interface are used to send out to the micro electric network coordination controller
Control command out, the micro electric network coordination controller receive the data of the detection and control terminal, the detection and control terminal for micro- electricity
The control instruction of net tuning controller is sent to the micro source controller, the energy storage controller and the load governor.
Preferably, micro-capacitance sensor connection status and energy storage that the micro electric network coordination controller is provided according to the detection and control terminal
Cell capability is controlled.
Preferably, the micro-capacitance sensor connection status includes island state and grid connection state.
Preferably, the energy-storage units capacity is described with micro-capacitance sensor energy-storage units state variable B.
Preferably, the input of the micro electric network coordination controller is the operating status and system state amount of current system, institute
System state amount is stated to include shutdown, restore, is standby, urgent, off-network normal operation, grid-connected normal operation.
Preferably, the control strategy of the micro electric network coordination controller includes the sagging control of P-V and V/F control.
Preferably, the micro electric network coordination controller selects the micro electric network coordination controller according to the system state amount
Control strategy.
Preferably, the micro electric network coordination controller is communicated by Ethernet interface.
Preferably, the micro-capacitance sensor multimode self-adaptive wavelet base system uses heterarchical architecture, the man-machine friendship
Mutual interface is supervisory layers, and the micro electric network coordination controller is coordinated control layer, the detection and control terminal, micro battery control
Device, the energy storage controller and the load governor are mechanical floor.
Preferably, the supervisory layers can carry out according to the simulation operating condition of natural conditions, the natural conditions including strong wind
Fine day, cloudy calm, normal weather, cloudy weather.
Compared with the existing technology, the beneficial effects of the present invention are embodied in:
(1) present invention carries out coordinated control according to micro-capacitance sensor connection status, realizes to power supply under multiple working conditions
Self-adaptive wavelet base, make grid-connected into unplanned isolated island handoff procedure, control strategy is automatically converted to V/F control, improves
The adaptability of control strategy.
(2) for the present invention using the different conditions of energy-storage units as state input quantity, micro electric network coordination controller can be in difference
Energy storage charge state under correct switching load, suitable power control is taken to intermittent micro battery, ensure that micro-capacitance sensor is sent out
The stable operation of electric power balance and system.
(3) dry run state is arranged by host computer interface in the present invention, realizes the switching of varying environment state, reduces
Because of erroneous judgement caused by environmental factor and wrong report risk in micro-capacitance sensor operational process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of micro-capacitance sensor multimode self-adaptive wavelet base system of the invention；
Fig. 2 is that micro-capacitance sensor operating status of the invention shifts schematic diagram；
Fig. 3 is the workflow of micro electric network coordination controller of the invention.
Specific embodiment
It is attached now in conjunction with appended preferred embodiment in order to further appreciate that structure of the invention, feature and other purposes
With attached drawing, detailed description are as follows, this attached drawing embodiment described is only used to illustrate the technical scheme of the present invention, and non-limiting
Invention.
Fig. 1 is the structural schematic diagram of micro-capacitance sensor multimode self-adaptive wavelet base system.Micro-capacitance sensor multimode is adaptive in Fig. 1
Answering coordinated control system includes human-computer interaction interface, micro electric network coordination controller, detection and control terminal, micro source controller, energy storage control
Device and load governor processed, the human-computer interaction interface is used to issue control command to the micro electric network coordination controller, described
Micro electric network coordination controller receives the data of the detection and control terminal, the detection and control terminal for the control of the micro electric network coordination controller
System instruction is sent to the micro source controller, the energy storage controller and the load governor.
The micro-capacitance sensor connection status and energy-storage units that the micro electric network coordination controller is provided according to the detection and control terminal are held
Amount is controlled.
The micro-capacitance sensor connection status includes island state and grid connection state.Micro-capacitance sensor connection status variable indicates with M,
Specific expression formula are as follows:
The energy-storage units capacity is described with micro-capacitance sensor energy-storage units state variable B.The micro-capacitance sensor energy-storage units shape
The expression formula of state variable B are as follows:
Wherein, SOC is the state-of-charge of energy-storage units, SOCminFor the minimum capacity of energy-storage units operation, SOCDFor energy storage
Unit standby capacity.
After the micro-capacitance sensor connection status and the micro-capacitance sensor energy-storage units state variable determine, the system state amount
It can be determined that following state:
It shuts down: M=0, B=0；
Restore: M=1, B=0；
It is standby: M=0, B=1；
It is urgent: M=1, B=1；
Off-network operates normally: M=0, B=2；
Grid-connected normal operation: M=1, B=2.
The control strategy of the micro electric network coordination controller includes the sagging control of P-V and V/F control.The V/F control
The expression of the output end voltage V and frequency f of energy-storage units are as follows:
Wherein, Kp and Kq is respectively active power and the sagging coefficient of reactive power, V* and f* be respectively voltage reference value and
Frequency reference value, P* and Q* are respectively active power a reference value and reactive power reference value.
Fig. 2 is that micro-capacitance sensor operating status shifts schematic diagram.The micro electric network coordination controller is according to the system state amount
Select the control strategy of the micro electric network coordination controller.The detection and control terminal uploads to operation data and status information described
Micro electric network coordination controller, current system conditions vector Z are as input variable, next operating status and unit control mode
Output variable, to realize the voluntarily switching of micro-capacitance sensor various states.The current system conditions vector Z can be expressed as (M,
B), each operating status has been respectively corresponded.
The micro electric network coordination controller is communicated by Ethernet interface.The micro-capacitance sensor multimode is adaptively coordinated to control
System processed uses heterarchical architecture, and the human-computer interaction interface is supervisory layers, and the micro electric network coordination controller is to coordinate control
Preparative layer, the detection and control terminal, the micro source controller, the energy storage controller and the load governor are mechanical floor.Respectively
Ethernet interface between layer follows ICP/IP protocol.
Fig. 3 is the workflow of micro electric network coordination controller, and main flow includes:
Step 1: the operation data and state of acquisition each unit intelligent terminal in real time, acquisition data include: each unit
Working condition, electric information, control mode and control parameter, weather information, system failure information etc.；
Step 2: analyzing and processing data gives the control of the device level according to the control strategy of the micro electric network coordination controller
Device processed issues the control commands such as sagging coefficient, set value of the power, load switching, carries out the control of micro battery generated output and load is thrown
Cut control etc.；
Step 3: the operating parameter of micro-capacitance sensor is uploaded into monitoring software, real-time display.
The supervisory layers can carry out according to the simulation operating condition of natural conditions, the natural conditions including strong wind fine day, yin
Its calm, normal weather, cloudy weather.Set parameter change rate are as follows:
Strong wind fine day: blower output power rate of change 10kW/s-1, photovoltaic output power rate of change 20kW/s-1, light
Lie prostrate output power rate of change 5kW/s-1；
Cloudy day is calm: blower output power rate of change 0kW/s-1, photovoltaic output power rate of change 10kW/s-1, photovoltaic
Output power rate of change 10kW/s-1；
Normal weather: blower output power rate of change 15kW/s-1, photovoltaic output power rate of change 20kW/s-1, light
Lie prostrate output power rate of change 30kW/s-1；
Cloudy weather: blower output power rate of change 15kW/s-1, photovoltaic output power rate of change 15kW/s-1, light
Lie prostrate output power rate of change 10kW/s-1。
Compared with the existing technology, the beneficial effects of the present invention are embodied in:
1. structure is simple, circuit is reliable, easy to make；
2. being able to carry out automatic multimode coordinated control；
3. control strategy adjust automatically can be carried out according to accumulator status；
4. state debugging can be carried out by human-computer interaction interface, it is easy to maintain；
5. low in cost.
It is to be understood that foregoing invention content and specific embodiment are intended to prove technical solution provided by the present invention
Practical application should not be construed as limiting the scope of the present invention.Those skilled in the art are in spirit and principles of the present invention
It is interior, when can various modifications may be made, equivalent replacement or improvement.Protection scope of the present invention is subject to the appended claims.
Claims (10)
1. a kind of micro-capacitance sensor multimode self-adaptive wavelet base system, which is characterized in that the micro-capacitance sensor multimode is adaptively assisted
Adjusting control system includes human-computer interaction interface, micro electric network coordination controller, detection and control terminal, micro source controller, energy storage controller
And load governor, the human-computer interaction interface are used to issue control command, micro- electricity to the micro electric network coordination controller
Net tuning controller receives the data of the detection and control terminal, the detection and control terminal refers to the control of the micro electric network coordination controller
Order is sent to the micro source controller, the energy storage controller and the load governor.
2. micro-capacitance sensor multimode self-adaptive wavelet base system according to claim 1, which is characterized in that the micro-capacitance sensor
The micro-capacitance sensor connection status and energy-storage units capacity that tuning controller is provided according to the detection and control terminal are controlled.
3. micro-capacitance sensor multimode self-adaptive wavelet base system according to claim 1, which is characterized in that the micro-capacitance sensor
Connection status includes island state and grid connection state.
4. micro-capacitance sensor multimode self-adaptive wavelet base system according to claim 1, which is characterized in that the energy storage list
First capacity is described with micro-capacitance sensor energy-storage units state variable B.
5. micro-capacitance sensor multimode self-adaptive wavelet base system according to claim 1, which is characterized in that the micro-capacitance sensor
The input of tuning controller be current system operating status and system state amount, the system state amount include shut down, restore,
Standby, urgent, off-network normal operation, grid-connected normal operation.
6. micro-capacitance sensor multimode self-adaptive wavelet base system according to claim 1, which is characterized in that the micro-capacitance sensor
The control strategy of tuning controller includes the sagging control of P-V and V/F control.
7. micro-capacitance sensor multimode self-adaptive wavelet base system according to claim 1, which is characterized in that the micro-capacitance sensor
Tuning controller selects the control strategy of the micro electric network coordination controller according to the system state amount.
8. micro-capacitance sensor multimode self-adaptive wavelet base system according to claim 1, which is characterized in that the micro-capacitance sensor
Tuning controller is communicated by Ethernet interface.
9. micro-capacitance sensor multimode self-adaptive wavelet base system according to claim 1, which is characterized in that the micro-capacitance sensor
Multimode self-adaptive wavelet base system uses heterarchical architecture, and the human-computer interaction interface is supervisory layers, the micro-capacitance sensor
Tuning controller is coordinated control layer, the detection and control terminal, the micro source controller, the energy storage controller and the load
Controller is mechanical floor.
10. micro-capacitance sensor multimode self-adaptive wavelet base system according to claim 1, which is characterized in that the monitoring
Layer can carry out include according to the simulation operating condition of natural conditions, the natural conditions strong wind fine day, cloudy day calm, normal weather,
Cloudy weather.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904778A (en) * | 2014-03-18 | 2014-07-02 | 国网电力科学研究院 | Self-adaptive control method for microgrid |
| CN104836334A (en) * | 2014-02-08 | 2015-08-12 | 中国农业大学 | Low voltage microgrid group independent coordination control system |
| CN211556873U (en) * | 2019-07-02 | 2020-09-22 | 北京群菱能源科技有限公司 | Multi-state self-adaptive coordination control system for micro-grid |
-
2019
- 2019-07-02 CN CN201910587498.9A patent/CN110365044A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836334A (en) * | 2014-02-08 | 2015-08-12 | 中国农业大学 | Low voltage microgrid group independent coordination control system |
| CN103904778A (en) * | 2014-03-18 | 2014-07-02 | 国网电力科学研究院 | Self-adaptive control method for microgrid |
| CN211556873U (en) * | 2019-07-02 | 2020-09-22 | 北京群菱能源科技有限公司 | Multi-state self-adaptive coordination control system for micro-grid |
Non-Patent Citations (1)
| Title |
|---|
| 黄秀琼等: "多状态自适应微电网协调控制器的设计与开发", 中国电力, vol. 47, no. 5, 31 May 2014 (2014-05-31), pages 118 - 122 * |
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