CN105429297B - The many operational mode controls of micro-capacitance sensor and switching method - Google Patents
The many operational mode controls of micro-capacitance sensor and switching method Download PDFInfo
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- CN105429297B CN105429297B CN201510900712.3A CN201510900712A CN105429297B CN 105429297 B CN105429297 B CN 105429297B CN 201510900712 A CN201510900712 A CN 201510900712A CN 105429297 B CN105429297 B CN 105429297B
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
Abstract
The invention discloses the method for a kind of many operational mode controls of micro-capacitance sensor and switching, methods described includes：Micro-capacitance sensor operational mode is divided into be normally incorporated into the power networks pattern, micro-capacitance sensor risk operational mode, micro-capacitance sensor Weak link operational mode, micro-capacitance sensor isolated power grid pattern and micro-capacitance sensor of micro-capacitance sensor to resume operation pattern；Determine the control strategy under each micro-capacitance sensor operational mode；Determine the strategy switched between each micro-capacitance sensor operational mode：It is determined that controlling micro-capacitance sensor operational mode to switch over when meeting corresponding trigger condition.Micro-capacitance sensor operational mode has been carried out thin division by the present invention first, and considers the conversion of each pattern each other.For the region micro-capacitance sensor containing small hydropower system, the micro-capacitance sensor containing various renewable distributed power sources can also be applied to, the not dead electricity of important load can be effectively ensured, reach the purpose for rationally utilizing regenerative resource and effectively utilizing clean energy resource.
Description
Technical field
The present invention relates to the method in electric power network technique field, more particularly to a kind of many operational mode controls of micro-capacitance sensor and switching.
Background technology
With the development of the social economy, increasingly sharpening along with energy resource consumption, energy shortage, utilization rate be low and environment
Pollution also grows in intensity, and micro-capacitance sensor with it flexibly, efficiently, economic, environmental protection and energy is various etc. that advantage turns into development electric power
Industry, the main strategic means for solving energy problem.Micro-capacitance sensor can integrate a large amount of distributed news and generate electricity, and help to solve
The various problems that bulk power grid runs into, are the important components of power distribution network in following intelligent grid.
Micro-capacitance sensor operation control is mostly important problem in micro-capacitance sensor research field, and its research contents covers distributed electrical
The access and control stood, micro-capacitance sensor operation control strategy and micro-grid operation mode conversion etc. micro-capacitance sensor operation control skill
Art, many operational mode control strategies based on the control method of various distributed power sources, energy storage device and load in micro-capacitance sensor,
Coordination tissue and automatic running strategy between each hair electric equipment in micro-capacitance sensor are studied, phase between many operational modes is mainly studied
The strategy mutually switched, is the core content of micro-capacitance sensor operation control.
The operation control of micro-capacitance sensor must have the ability steadily switched under grid-connected and decoupled mode, existing micro-
Operation of power networks, is mostly the direct switching of both of which, and switchover policy is single, fluctuation of service.In order to realize the two of micro-capacitance sensor
Steady switching between kind typical operational mode (grid-connect mode and island mode) is, it is necessary to which one kind can run mould the micro-capacitance sensor more
The operation reserve of rationally switching smooth transition, so as to improve the power supply reliability of micro-capacitance sensor, makes low-carbon environment-friendly energy under formula environment
Source is with realizing sustainable development.
The content of the invention
To solve existing technical problem, the embodiment of the present invention provides a kind of many operational mode controls of micro-capacitance sensor and cut
The method changed.
To reach above-mentioned purpose, what the technical scheme of the embodiment of the present invention was realized in：
A kind of method of many operational mode controls of micro-capacitance sensor and switching, methods described includes：
Micro-capacitance sensor operational mode is divided into micro-capacitance sensor to be normally incorporated into the power networks pattern, micro-capacitance sensor risk operational mode, micro- electricity
Net Weak link operational mode, micro-capacitance sensor isolated power grid pattern and micro-capacitance sensor resume operation pattern；
Determine the control strategy under each micro-capacitance sensor operational mode：Normally it is incorporated into the power networks under pattern in the micro-capacitance sensor, really
Determine the optimisation strategy of power network；Under the micro-capacitance sensor risk operational mode, it is determined that keeping system according to the power transmission of interconnection
The control strategy of safe operation；Under the micro-capacitance sensor isolated power grid pattern, when operation is comparatively fragile, there is power station because of thing
Therefore load that is out of service or having circuit when increasing and decreasing suddenly, the safe and stable operation control strategy of isolated power grid pattern is determined；
Resumed operation pattern in the micro-capacitance sensor, determine quick startup and the control strategy with major network system grid connection under fault mode；
Determine the strategy switched between each micro-capacitance sensor operational mode：It is determined that controlling micro-capacitance sensor when meeting corresponding trigger condition
Operational mode is switched over.
The control strategy under pattern wherein it is determined that micro-capacitance sensor is normally incorporated into the power networks, including：Analyze and pickup area power network
Basic data, the power producing characteristics of analyzed area small power station；By analyzing under the historical data and all kinds of weather that small power station exerts oneself
The relevance of exerting oneself of small power station under power producing characteristics, same basin, the space-time power producing characteristics of analyzed area micro-capacitance sensor small power station and friendship
The mechanism mutually influenceed, obtains its typical case and exerts oneself feature, and set up the power producing characteristics model of corresponding area；By resulting small power station
Power producing characteristics analysis result integrated with region micro-grid load data；According to different type equipment and specific small power station
Regulating power and different electrical power type exert oneself between complementary characteristic, analyzed area small hydropower system concerted mechanism sets up region little Shui
The interactive coordination system between electricity；Optimal dispatch and safety on line early warning under normal mode are built, is realized under present mode
The Optimized Operation of small power station and energy management, reach the maximization that small power station utilizes, and form the optimisation strategy of economical operation.
Wherein it is determined that the control strategy under micro-capacitance sensor risk operational mode, including：It is determined that according to the power transmission of interconnection
Keep the control strategy of system safety operation；It is determined that being transferred to the trigger condition of Risk mode；Micro-capacitance sensor stability control device monitors power transformation
Stand service entrance switch signal, timely active off-grid operation；Prediction scheme is formulated in real time, according to the power scale of electric power incoming line, it is determined that described
The inessential load got rid of is needed under micro-capacitance sensor risk operational mode.
Wherein it is determined that the control strategy under micro-capacitance sensor Weak link operational mode, including：Constituting Weak link pattern makes region micro-
Power network low-pressure side is connected with each other, under the micro-capacitance sensor Weak link operational mode, power-balance for each small micro-capacitance sensor itself,
The conveying power limit and important load of circuit, carry out micro-capacitance sensor Weak link pattern analysis.
Wherein it is determined that the control strategy under micro-capacitance sensor isolated power grid pattern, including：For small power station in regional power grid in orphan
The Multiple factors of complementary Influencing Mechanism in network operation condition characteristic, meter and influence small power station power, operation characteristic and group, analysis is each
Power output change and the operation characteristic of monomer small power station are planted, the coordination law between small hydropower system is determined, obtains corresponding line
Road connection strategy so that important load not dead electricity in the case of isolated power grid；The safe and stable operation control strategy of the isolated network includes
Small power station is ensureing isolated network stable operation automatically into frequency modulation control state, micro-capacitance sensor controller according to the demand of stability control strategy
In the case of cut-out circuit.
Control strategy wherein it is determined that micro-capacitance sensor resumes operation under pattern, including：It is determined that quick in a failure mode start
And the strategy with major network system grid connection；Decision Support System sends grid-connected instruction；Transformer station performs the grid-connected instruction
Micro-capacitance sensor intelligent Synchronization closing device is given, while the deviation of the micro-capacitance sensor intelligent Synchronization closing device is sent into power station.
Wherein, normally the pattern of being incorporated into the power networks goes to the trigger condition of micro-capacitance sensor risk operational mode to the micro-capacitance sensor：Actively
Plan off-grid or burst accident；The micro-capacitance sensor risk operational mode goes to the trigger condition of micro-capacitance sensor Weak link operational mode：
Inlet wire dead electricity, high-pressure side power-off, low-pressure side interconnection；The micro-capacitance sensor isolated power grid pattern goes to micro-capacitance sensor and resumed operation pattern
Trigger condition：Artificial plan is intervened；The micro-capacitance sensor pattern of resuming operation goes to the trigger condition of micro-grid connection operational mode：
Micro-capacitance sensor simultaneous interconnecting.
Compared with prior art, the beneficial effect of the embodiment of the present invention is：
(1) first by micro-capacitance sensor operational mode be sub-divided into micro-capacitance sensor be normally incorporated into the power networks pattern, micro-capacitance sensor risk run
Pattern (and turning orphan), micro-capacitance sensor Weak link mode operation, micro-capacitance sensor isolated power grid pattern and micro-capacitance sensor resume operation pattern (quickly
Telegram in reply turns simultaneously with lonely), and consider its conversion each other.
(2) the region micro-capacitance sensor containing small hydropower system is directed to, can also be applied to containing various renewable distributed power sources
Micro-capacitance sensor, can effectively and reliably be applied to micro-capacitance sensor multi-mode operation, valuable reference is provided for dispatcher.
(3) reliability for region important load provides beneficial reference, and the not dead electricity of important load can be effectively ensured.
(4) regenerative resource is rationally utilized, and effectively utilizes clean energy resource.
Brief description of the drawings
In accompanying drawing (it is not necessarily drawn to scale), similar reference phase described in different views
As part.Similar reference numerals with different letter suffix can represent the different examples of similar component.Accompanying drawing is with example
Unrestricted mode generally shows each embodiment discussed herein.
Fig. 1 is the flow chart of the method for many operational mode controls of micro-capacitance sensor of the embodiment of the present invention and switching；
Fig. 2 is the specific implementation schematic diagram of the method for many operational mode controls of micro-capacitance sensor of the embodiment of the present invention and switching.
Embodiment
The present embodiments relate to the method for a kind of many operational mode controls of micro-capacitance sensor containing small hydropower system and switching, including
Region micro-capacitance sensor investigation and analysis, determine small power station's operation characteristic, determine the distribution of region micro-capacitance sensor reference load, determining operational mode
Classification, determines the content under each operational mode, determines the trigger condition that each operational mode mutually switches, and many fortune of final determination
The strategy that row mode is controlled and switched.The characteristics of embodiment of the present invention is directed to region micro-capacitance sensor, it is proposed that many points of operational mode
Class, and analyzed for each operational mode, beneficial strategy is provided to the mutual switching between each pattern and is referred to, and is attached most importance to
Wanting load, dead electricity does not provide effective guarantee, and provides beneficial reference for dispatcher.
, can be with as shown in figure 1, the control of micro-capacitance sensor of the embodiment of the present invention containing small hydropower system many operational modes and switching method
Comprise the following steps：
Step 101：By micro-capacitance sensor operational mode be divided into micro-capacitance sensor be normally incorporated into the power networks pattern, micro-capacitance sensor risk operation mould
Formula, micro-capacitance sensor Weak link operational mode, micro-capacitance sensor isolated power grid pattern and micro-capacitance sensor resume operation pattern；
Step 102：Determine the control strategy under each micro-capacitance sensor operational mode；
Normally it is incorporated into the power networks under pattern in the micro-capacitance sensor, determines the optimisation strategy of power network；
Under the micro-capacitance sensor risk operational mode, it is determined that keeping system safety operation according to the power transmission of interconnection
Control strategy；
Under the micro-capacitance sensor isolated power grid pattern, when operation is comparatively fragile, there is power station out of service because of accident
Or the load for having circuit when increasing and decreasing suddenly, the safe and stable operation control strategy of isolated power grid pattern is determined；
Resumed operation pattern in the micro-capacitance sensor, determine quick startup and the control with major network system grid connection under fault mode
System strategy；
Step 103：Determine the strategy switched between each micro-capacitance sensor operational mode：It is determined that meeting corresponding trigger condition time control
Micro-capacitance sensor operational mode processed is switched over.
Specifically, as follows for the different specific implementation procedures of pattern：
1st, the normal mistake of micro-capacitance sensor is incorporated into the power networks pattern
Substantially flow：Obtain the relevant information of relevant information → collection grid-connected system economical operation of micro-capacitance sensor architectural framework
→ carry out the decision-making of micro-capacitance sensor intelligent scheduling and checking.Following steps can specifically be included：
Step a1：Fully analyze and investigate the basis of regional power grid, the power producing characteristics of analyzed area small power station；Pass through analysis
The historical data that small power station exerts oneself and the power producing characteristics under all kinds of typical weathers, under same basin small power station relevance of exerting oneself,
The space-time power producing characteristics of analyzed area micro-capacitance sensor small power station and the mechanism of reciprocal effect, obtain its typical case and exert oneself feature, and set up
The power producing characteristics model of corresponding area.
Step a2：By the power producing characteristics analysis result of the small power station obtained by step 101 and region micro-grid load data
Integrated；Complementation between being exerted oneself according to the regulating power and different electrical power type of different type equipment and specific small power station is special
Property, analyzed area small hydropower system concerted mechanism, the interactive coordination system set up between the small power station of region.
Step a3：On the basis of step 101~102, optimal dispatch, safety on line early warning under normal mode are built
Deng application, carry out the Optimized Operation of small power station and complex energy management under the pattern, reach maximization that small power station utilizes and
Ensure the power supply reliability of region micro-capacitance sensor, further form the optimisation strategy of economical operation.
2nd, micro-capacitance sensor risk operational mode (and turning orphan)
Substantially flow：Obtain the relevant information of relevant information → collection risk operational mode operation of micro-capacitance sensor architectural framework
→ carry out the decision-making of micro-capacitance sensor intelligent scheduling and checking.Specifically, following steps can be included：
Step b1：The control strategy of system safety operation is kept according to the power transmission of interconnection.
Step b2：It is determined that being transferred to the trigger condition of Risk mode：According to the artificial conversion regime of weather information.
Step b3：Micro-capacitance sensor stability control device monitoring substation service entrance switch signal, timely active off-grid operation.
Step b4：Prediction scheme is formulated in real time, according to the power scale of electric power incoming line, it is determined that and needing that gets rid of not weigh after turn orphan
Want load；Retain the load of a power supply, important load and balance.
Under Risk mode, system is gone to risk mould by the Risk-warning rank issued according to weather forecast and grid company
Under formula, by way of Proposals are provided, the person's of being scheduled for reference.
3rd, micro-capacitance sensor Weak link mode operation
Substantially flow：Obtain relevant information → collection micro-capacitance sensor Weak link grid connection security of the possible framework of micro-capacitance sensor Weak link
The relevant information of operational mode → determine micro-capacitance sensor Weak link mode operation control strategy → carry out micro-capacitance sensor intelligent scheduling decision-making
And checking.
Specifically, under complex environment, the more possible disengaging bulk power grid of region micro-capacitance sensor, is that can make region micro-capacitance sensor
Low-pressure side can be also connected with each other, and constitute Weak link pattern, in such a mode, it is considered to each small micro-capacitance sensor power-balance of itself, line
The conveying power limit on road and to important load reliability, carries out micro-capacitance sensor Weak link pattern analysis.
4th, micro-capacitance sensor isolated power grid pattern
Substantially flow：Obtain the relevant information of relevant information → collection Isolated Network System safe operation of micro-capacitance sensor architectural framework
→ carry out micro-capacitance sensor isolated power grid scheduling decision and checking.
Specifically, for small power station in regional power grid in isolated power grid condition characteristic, meter and Hydropower Unit type, capacity,
Complementary influence machine in small power station's power characteristic under many influence factors such as precipitation, runoff, balancing reservoir storage capacity, operation characteristic and group
The power output change of the various monomer small power stations of reason research and operation characteristic, explore the coordination law between small hydropower system；Obtain
Corresponding connection strategy, realizes and ensures important load not dead electricity in the case of isolated power grid.
Further, the safe and stable operation control strategy of the isolated network specifically includes small power station automatically into frequency modulation control shape
State；Micro-capacitance sensor controller is according to the demand of stability control strategy, the cut-out circuit in the case where ensureing isolated network stable operation, it is to avoid
The jumbo vibration of micro-grid system.
5th, micro-capacitance sensor resumes operation pattern (fast power restoration with lonely turn simultaneously)
Substantially flow：Relevant information → the collection for obtaining micro-capacitance sensor architectural framework is resumed operation the relevant information of mode operation
→ carry out micro-capacitance sensor stable operation experiment and checking.Specifically, including following steps：
Step c1：It is determined that quick startup in a failure mode and the strategy with major network system grid connection.
Step c2：Decision Support System sends grid-connected instruction.
Step c3：Transformer station performs grid-connected instruct and gives micro-capacitance sensor intelligent Synchronization closing device, while by micro-capacitance sensor intelligence
The deviation of energy asynchronous switch-on device is sent to power station.
Step c4：Into the pattern of being incorporated into the power networks, the removed load of stability control device input and circuit.
Specifically, the quick startup and include with the strategy of major network system grid connection：Decision Support System is sent
Grid-connected instruction；Controller performs grid-connected instruct and gives micro-capacitance sensor intelligent Synchronization closing device；Into the pattern of being incorporated into the power networks, do not give again
Protection device sets definite value, goes to jump corresponding circuit by the tripping operation outlet of protection device, defencive function is realized in controller
And perform.
Specifically, as shown in Fig. 2 the described pattern of being incorporated into the power networks goes to risk operational mode trigger condition is) actively count
Draw off-grid or burst accident.Risk operational mode goes to Weak link operational mode trigger condition for inlet wire dead electricity, high-pressure side power-off,
Low-pressure side is interconnected；Isolated power grid pattern goes to pattern trigger condition of resuming operation and intervened for artificial plan；Pattern of resuming operation turns
To the pattern trigger condition that is incorporated into the power networks for micro-capacitance sensor simultaneous interconnecting.
In the embodiment of the present invention, by micro-capacitance sensor in grid-connected economical operation, isolated network safe and stable operation, and turn the steady of orphan
Interim process control, fast power restoration and the lonely research for turning and waiting many operational mode strategies, the control targe of control micro-capacitance sensor multi-mode.Really
It is scheduled on the optimisation strategy of power network under grid-connected economic model；Determine that the power based on interconnection is passed under risk operational mode (and turning orphan)
The control strategy of defeated holding system safety operation；Under isolated power grid pattern, when system operation is comparatively fragile, some generating
Stand because when accident is out of service or the load of certain circuit increases and decreases suddenly, determining the safe and stable operation control strategy of isolated network；
In recovery mode (fast power restoration with lonely turn simultaneously), it is determined that quick startup in a failure mode and with major network system grid connection.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (6)
1. a kind of many operational mode controls of micro-capacitance sensor and the method for switching, it is characterised in that methods described includes：
Micro-capacitance sensor operational mode is divided into normally be incorporated into the power networks pattern, micro-capacitance sensor risk operational mode, micro-capacitance sensor of micro-capacitance sensor weak
Connection operational mode, micro-capacitance sensor isolated power grid pattern and micro-capacitance sensor are resumed operation pattern；
Determine the control strategy under each micro-capacitance sensor operational mode：Normally it is incorporated into the power networks under pattern in the micro-capacitance sensor, it is determined that electric
The optimisation strategy of net；Under the micro-capacitance sensor risk operational mode, it is determined that keeping system safety according to the power transmission of interconnection
The control strategy of operation；Under the micro-capacitance sensor isolated power grid pattern, when operation is comparatively fragile, there is power station to be moved back because of accident
When the load for going out operation or having circuit increases and decreases suddenly, the safe and stable operation control strategy of isolated power grid pattern is determined；Institute
State micro-capacitance sensor to resume operation pattern, determine quick startup and the control strategy with major network system grid connection under fault mode；
Determine the strategy switched between each micro-capacitance sensor operational mode：It is determined that controlling micro-capacitance sensor operation when meeting corresponding trigger condition
Pattern is switched over；
Wherein, normally the pattern of being incorporated into the power networks goes to the trigger condition of micro-capacitance sensor risk operational mode to the micro-capacitance sensor：Actively plan
Off-grid or burst accident；The micro-capacitance sensor risk operational mode goes to the trigger condition of micro-capacitance sensor Weak link operational mode：Inlet wire
Dead electricity, high-pressure side power-off, low-pressure side interconnection；The micro-capacitance sensor isolated power grid pattern goes to micro-capacitance sensor and resumed operation the triggering of pattern
Condition：Artificial plan is intervened；The micro-capacitance sensor pattern of resuming operation goes to the trigger condition of micro-grid connection operational mode：Micro- electricity
Net simultaneous interconnecting.
2. according to the method described in claim 1, it is characterised in that determine the control plan that micro-capacitance sensor is normally incorporated into the power networks under pattern
Omit, including：
Analyze the basic data of simultaneously pickup area power network, the power producing characteristics of analyzed area small power station；
By analyzing exerting oneself for small power station under the power producing characteristics under the historical data and all kinds of weather that small power station exerts oneself, same basin
Relevance, the space-time power producing characteristics of analyzed area micro-capacitance sensor small power station and the mechanism of reciprocal effect, obtain its typical case and exert oneself feature,
And set up the power producing characteristics model of corresponding area；
The power producing characteristics analysis result of resulting small power station is integrated with region micro-grid load data；According to inhomogeneity
The regulating power and different electrical power type of type equipment and specific small power station exert oneself between complementary characteristic, analyzed area small hydropower system association
Adjust mechanism, the interactive coordination system set up between the small power station of region；
Build optimal dispatch and safety on line early warning under normal mode, realize under present mode the Optimized Operation of small power station and
Energy management, reaches the maximization that small power station utilizes, and forms the optimisation strategy of economical operation.
3. according to the method described in claim 1, it is characterised in that determine the control strategy under micro-capacitance sensor risk operational mode,
Including：
It is determined that keeping the control strategy of system safety operation according to the power transmission of interconnection；
It is determined that being transferred to the trigger condition of Risk mode；
Micro-capacitance sensor stability control device monitoring substation service entrance switch signal, timely active off-grid operation；
Prediction scheme is formulated in real time, according to the power scale of electric power incoming line, determines to need to get rid of under the micro-capacitance sensor risk operational mode
Inessential load.
4. according to the method described in claim 1, it is characterised in that determine the control plan under micro-capacitance sensor Weak link operational mode
Omit, including：
Constituting Weak link pattern makes region micro-capacitance sensor low-pressure side interconnection, under the micro-capacitance sensor Weak link operational mode, pin
To the power-balance of each small micro-capacitance sensor itself, the conveying power limit of circuit and important load, micro-capacitance sensor Weak link mould is carried out
Formula is analyzed.
5. according to the method described in claim 1, it is characterised in that determine the control strategy under micro-capacitance sensor isolated power grid pattern,
Including：
For small power station in regional power grid in isolated power grid condition characteristic, count and influence in small power station's power, operation characteristic and group
The Multiple factors of complementary Influencing Mechanism, analyze power output change and the operation characteristic of various monomer small power stations, determine small power station
Coordination law between group, obtains corresponding connection strategy so that important load not dead electricity in the case of isolated power grid；
The safe and stable operation control strategy of the isolated network includes small power station automatically into frequency modulation control state, micro-capacitance sensor controller root
According to the demand of stability control strategy, the cut-out circuit in the case where ensureing isolated network stable operation.
6. according to the method described in claim 1, it is characterised in that determine the control strategy that micro-capacitance sensor resumes operation under pattern,
Including：
It is determined that quick in a failure mode start and the strategy with major network system grid connection；
Decision Support System sends grid-connected instruction；
Transformer station performs grid-connected instruct and gives micro-capacitance sensor intelligent Synchronization closing device, while the micro-capacitance sensor intelligent Synchronization is closed
The deviation of brake gear is sent to power station.
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| CN106602719A (en) * | 2016-09-18 | 2017-04-26 | 海南电力技术研究院 | Microgrid control system |
| CN106712108A (en) * | 2016-12-21 | 2017-05-24 | 海南电力技术研究院 | Microgrid operation mode control method |
| CN106684868A (en) * | 2017-02-23 | 2017-05-17 | 南京航空航天大学 | Electric power distribution method of hierarchical Internet micro-grid |
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