CN109473988A - Intelligent distribution network power flowcontrol, fault handling method and device containing micro-capacitance sensor - Google Patents
Intelligent distribution network power flowcontrol, fault handling method and device containing micro-capacitance sensor Download PDFInfo
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- CN109473988A CN109473988A CN201811482130.8A CN201811482130A CN109473988A CN 109473988 A CN109473988 A CN 109473988A CN 201811482130 A CN201811482130 A CN 201811482130A CN 109473988 A CN109473988 A CN 109473988A
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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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
Abstract
The present invention relates to intelligent distribution network power flowcontrol, fault handling method and device containing micro-capacitance sensor, the control methods are as follows: obtains the output power of each distributed generation resource and the direction of tide of each micro-capacitance sensor in real time；If the trend of certain micro-capacitance sensor flows to power distribution network, under conditions of guaranteeing that all distributed power source output powers are constant, switch the load of power distribution network to the micro-capacitance sensor, until the direction of tide of the micro-capacitance sensor changes.The control device is the control device for realizing above-mentioned control method.The fault handling method are as follows: break down in the power distribution network somewhere other than micro-capacitance sensor; then according to traditional power distribution network relay protection configuration method handling failure; if breaking down inside micro-capacitance sensor, micro-capacitance sensor is directly cut off, by micro-capacitance sensor isolated operation fault handling method handling failure.The fault treating apparatus is the fault treating apparatus for realizing above-mentioned fault handling method.This invention ensures that the stabilization of distribution network system direction of tide, reduces distribution network system troubleshooting difficulty.
Description
Technical field
The invention belongs to distribution network technology fields, and in particular to a kind of intelligent distribution network power flowcontrol containing micro-capacitance sensor therefore
Hinder processing method and processing device.
Background technique
With the research application of information technology, intellectualized technology in power distribution network, power distribution network is just being accelerated to intelligent direction
Development, and a characteristic feature of intelligent distribution network is exactly to support distributed generation resource (Distribution Generation, DG)
A large amount of accesses, can using intellectualized technology scheduling distributed generation resource participate in system optimized operation, adjust power consumer it is orderly
Electricity consumption realizes the management of " source-net-lotus " coordination optimization, promotes the reliability of distribution network system overall operation.
Power distribution network is typically designed as radiation network at present, and user side does not have any power supply, according to direction of tide before and after failure
Variation, traditional relay protection scheme scheme are easy to solve the different faults of distribution network system.However, the big rule of renewable energy
Mould develops and uses, and the permeability of distributed generation resource access is continuously improved in intelligent distribution network, and high permeability distributed generation resource connects
Enter so that power distribution network possesses multiple supply nodes, and the characteristics of distributed power source output power randomness, mutability makes it again
The variation of output power may be alternately present in power distribution network, to cause distribution network system direction of tide more random wave
It is dynamic, the difficulty of distribution network system troubleshooting is increased, the reliability service of intelligent distribution network is brought a negative impact.Due to hypertonic
Saturating rate distributed generation resource access power distribution network changes direction and the size of Line Flow, depending on distributed generation resource on-position,
Therefore how not dropped as far as possible with factors such as the topological structures of the relative size of load, power supply capacity and network
Low distributed power source output power and in the case where distribution network system failure is effectively treated, utilizes the advantage skill of intelligent distribution network
Art is influenced to ensure intelligent distribution network direction of tide not by distributed generation resource access, when shortening distribution network system fault outage
Between, become current urgent problem to be solved, the solution of the problem has highly important practical application value.
Summary of the invention
The present invention provides a kind of intelligent distribution network flow control method and device containing micro-capacitance sensor, to solve existing intelligence
Power distribution network due to distributed generation resource access and the problem of cause the easy random fluctuation of distribution network system direction of tide.The present invention also mentions
A kind of intelligent distribution network fault handling method and device containing micro-capacitance sensor is supplied, to solve existing intelligent distribution network due to distribution
The access of power supply and cause the easy random fluctuation of distribution network system direction of tide, it is big in turn result in distribution network system troubleshooting difficulty
The problem of.
Cause to solve existing intelligent distribution network due to the access of distributed generation resource distribution network system direction of tide easily with
The problem of machine fluctuates, the intelligent distribution network flow control method of the invention containing micro-capacitance sensor includes the following steps:
1) direction of tide at the output power and each micro-capacitance sensor access power distribution network node of each distributed generation resource is obtained in real time；
If 2) trend of some micro-capacitance sensor flows to power distribution network, guaranteeing the constant item of all distributed power source output powers
Under part, switch the load on power distribution network to the micro-capacitance sensor, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
The beneficial effect of intelligent distribution network flow control method of the present invention containing micro-capacitance sensor is: the present invention is according to real-time analysis
Power distribution network operation information can not only be solved by coordinating the output power of distribution network system power load distributing and distributed generation resource
The problem of distribution network system direction of tide easy random fluctuation, and can be realized maximally utilizing for distributed generation resource, improve energy
The efficiency that source utilizes.Method of the invention can ensure that the micro-capacitance sensor containing distributed generation resource accesses distribution in the form of load always
Net, so, for the power distribution network using the above method, it can use traditional relay in the case where intelligent distribution network failure
Relaying configuration scheme can handle dependent failure, reduce the difficulty of the intelligent distribution network troubleshooting containing distributed generation resource.
In order to make each micro-grid load keep balance and coordinate, if judging, the trend of some micro-capacitance sensor flows to power distribution network
And some belongs to the load in the micro-capacitance sensor originally and has turned to supply other micro-capacitance sensors, then is meeting other micro-capacitance sensors access distribution
Under conditions of net direction of tide is constant, the load in the micro-capacitance sensor preferentially is belonged to originally from the switching of other micro-capacitance sensors, then switches again and matches
Load on power grid.
In order to further ensure not only realizing that direction of tide is adjusted, but also maximally utilizing for distributed generation resource can be realized, if
By the load on transfer power distribution network bus to a certain micro-capacitance sensor, it cannot still change the direction of tide of the micro-capacitance sensor, meet
Distributed power source output power is constant in other all micro-capacitance sensors and meets tide at other all micro-capacitance sensor access power distribution network nodes
Under conditions of stream direction is constant, continue to switch the load in other micro-capacitance sensors to the micro-capacitance sensor, until the micro-capacitance sensor accesses distribution
Direction of tide at net node changes.
In order to guarantee that the micro-capacitance sensor containing distributed generation resource accesses power distribution network in the form of load always, if by shifting other
Load on micro-capacitance sensor bus cannot still change the direction of tide of a certain micro-capacitance sensor access power distribution network, then reduce in the micro-capacitance sensor
The output power of distributed generation resource, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
Cause to solve existing intelligent distribution network due to the access of distributed generation resource distribution network system direction of tide easily with
The problem of machine fluctuates, the intelligent distribution network tidal current controller of the invention containing micro-capacitance sensor is for realizing following functions: 1) in real time
Obtain the direction of tide at the output power and each micro-capacitance sensor access power distribution network node of each distributed generation resource；If 2) some micro- electricity
The trend of net flows to power distribution network, under conditions of guaranteeing that all distributed power source output powers are constant, switches negative on power distribution network
Lotus is to the micro-capacitance sensor, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
The beneficial effect of intelligent distribution network tidal current controller of the present invention containing micro-capacitance sensor is: the present invention is according to real-time analysis
Power distribution network operation information can not only be solved by coordinating the output power of distribution network system power load distributing and distributed generation resource
The problem of distribution network system direction of tide easy random fluctuation, and can be realized maximally utilizing for distributed generation resource, improve energy
The efficiency that source utilizes.The device of the invention can ensure that the micro-capacitance sensor containing distributed generation resource accesses distribution in the form of load always
Net, so, for the power distribution network using above-mentioned apparatus, it can use traditional relay in the case where intelligent distribution network failure
Relaying configuration scheme can handle dependent failure, reduce the difficulty of the intelligent distribution network troubleshooting containing distributed generation resource.
In order to make each micro-grid load keep balance and coordinate, the control device is also used to realize following functions: if sentencing
It is disconnected go out some micro-capacitance sensor trend flow to power distribution network and some load belonged to originally in the micro-capacitance sensor has turned to supply other
Micro-capacitance sensor, then meet other micro-capacitance sensors access distribution power flow direction it is constant under conditions of, preferentially from other micro-capacitance sensors switch
It belongs to the load in the micro-capacitance sensor originally, then switches the load on power distribution network again.
In order to further ensure not only realizing that direction of tide is adjusted, but also maximally utilizing for distributed generation resource can be realized, institute
It states control device to be also used to realize following functions: if by the load on transfer power distribution network bus to a certain micro-capacitance sensor, still not
The direction of tide that the micro-capacitance sensor can be changed, distributed power source output power is constant in meeting other micro-capacitance sensors and to meet other micro-
Power grid accesses at power distribution network node under conditions of direction of tide is constant, continues to switch load in other micro-capacitance sensors to micro- electricity
Net, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
In order to guarantee that the micro-capacitance sensor containing distributed generation resource accesses power distribution network in the form of load always, the control device is also
For realizing following functions: matching if cannot still change a certain micro-capacitance sensor access by the load on other micro-capacitance sensor buses of transfer
The direction of tide of power grid, then by reducing the output power of distributed generation resource in the micro-capacitance sensor, until the micro-capacitance sensor accesses distribution
Direction of tide at net node changes.
Cause to solve existing intelligent distribution network due to the access of distributed generation resource distribution network system direction of tide easily with
Machine fluctuation in turn results in the big problem of distribution network system troubleshooting difficulty, the intelligent distribution network event of the invention containing micro-capacitance sensor
Hinder processing method are as follows: the distribution network system somewhere other than micro-capacitance sensor is broken down, then according to traditional power distribution network relay protection
Configuration method handling failure directly cuts off micro-capacitance sensor, at micro-capacitance sensor isolated operation failure if breaking down inside micro-capacitance sensor
Reason method handling failure.This method is used for the intelligent distribution network using the intelligent distribution network flow control method containing micro-capacitance sensor, institute
The intelligent distribution network flow control method containing micro-capacitance sensor is stated to include the following steps:
1) direction of tide at the output power and each micro-capacitance sensor access power distribution network node of each distributed generation resource is obtained in real time；
If 2) trend of some micro-capacitance sensor flows to power distribution network, guaranteeing the constant item of all distributed power source output powers
Under part, switch the load on power distribution network to the micro-capacitance sensor, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
The beneficial effect of intelligent distribution network fault handling method of the present invention containing micro-capacitance sensor is: the present invention is according to real-time analysis
On the one hand power distribution network operation information can be protected by coordinating the output power of distribution network system power load distributing and distributed generation resource
Hinder the micro-capacitance sensor containing distributed generation resource and access power distribution network in the form of load always, is utilized in the case where intelligent distribution network failure
Traditional relay protection allocation plan can handle dependent failure, reduce the difficulty of the intelligent distribution network troubleshooting containing distributed generation resource
Degree；On the other hand in the case where intelligent distribution network system failure is effectively treated, it can be realized the maximization benefit of distributed generation resource
With improving the efficiency of using energy source.
In order to make each micro-grid load keep balance and coordinate, the intelligent distribution network which is applicable in into
When row power flowcontrol, if judging, the trend of some micro-capacitance sensor flows to power distribution network and some is belonged to originally in the negative of the micro-capacitance sensor
Lotus has turned to supply other micro-capacitance sensors, then meet other micro-capacitance sensors access distribution power flow direction it is constant under conditions of, preferentially
The load in the micro-capacitance sensor is belonged to originally from the switching of other micro-capacitance sensors, then switches the load on power distribution network again.
In order to further ensure not only realizing that direction of tide is adjusted, but also maximally utilizing for distributed generation resource can be realized, it should
The intelligent distribution network that fault handling method is applicable in is when carrying out power flowcontrol, if extremely by the load on transfer power distribution network bus
A certain micro-capacitance sensor cannot still change the direction of tide of the micro-capacitance sensor, and distributed generation resource is defeated in meeting other all micro-capacitance sensors
Power is constant out and meets under conditions of direction of tide is constant at other all micro-capacitance sensors access power distribution network nodes, continues to switch it
Load in his micro-capacitance sensor is to the micro-capacitance sensor, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
In order to guarantee that the micro-capacitance sensor containing distributed generation resource accesses power distribution network, the fault handling method in the form of load always
The intelligent distribution network being applicable in is when carrying out power flowcontrol, if cannot still be changed by shifting the load on other micro-capacitance sensor buses
The direction of tide for becoming a certain micro-capacitance sensor access power distribution network, then reduce the output power of distributed generation resource in the micro-capacitance sensor, until should
The direction of tide that micro-capacitance sensor accesses at power distribution network node changes.
Cause to solve existing intelligent distribution network due to the access of distributed generation resource distribution network system direction of tide easily with
Machine fluctuation in turn results in the big problem of distribution network system troubleshooting difficulty, the intelligent distribution network event of the invention containing micro-capacitance sensor
Hinder processing unit for realizing following trouble handling function: the distribution network system somewhere other than micro-capacitance sensor is broken down, then is pressed
According to traditional power distribution network relay protection configuration method handling failure, if breaking down inside micro-capacitance sensor, micro-capacitance sensor is directly cut off,
By micro-capacitance sensor isolated operation fault handling method handling failure.The fault treating apparatus is used to use the intelligent power distribution containing micro-capacitance sensor
The intelligent distribution network of net flow control method, the intelligent distribution network flow control method containing micro-capacitance sensor include the following steps:
1) direction of tide at the output power and each micro-capacitance sensor access power distribution network node of each distributed generation resource is obtained in real time；
If 2) trend of some micro-capacitance sensor flows to power distribution network, guaranteeing the constant item of all distributed power source output powers
Under part, switch the load on power distribution network to the micro-capacitance sensor, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
The beneficial effect of intelligent distribution network fault treating apparatus of the present invention containing micro-capacitance sensor is: the present invention is according to real-time analysis
On the one hand power distribution network operation information can be protected by coordinating the output power of distribution network system power load distributing and distributed generation resource
Hinder the micro-capacitance sensor containing distributed generation resource and access power distribution network in the form of load always, is utilized in the case where intelligent distribution network failure
Traditional relay protection allocation plan can handle dependent failure, reduce the difficulty of the intelligent distribution network troubleshooting containing distributed generation resource
Degree；On the other hand in the case where intelligent distribution network system failure is effectively treated, it can be realized the maximization benefit of distributed generation resource
With improving the efficiency of using energy source.
In order to make each micro-grid load keep balance and coordinate, the intelligent distribution network which is applicable in into
When row power flowcontrol, if judging, the trend of some micro-capacitance sensor flows to power distribution network and some is belonged to originally in the negative of the micro-capacitance sensor
Lotus has turned to supply other micro-capacitance sensors, then meet other micro-capacitance sensors access distribution power flow direction it is constant under conditions of, preferentially
The load in the micro-capacitance sensor is belonged to originally from the switching of other micro-capacitance sensors, then switches the load on power distribution network again.
In order to further ensure not only realizing that direction of tide is adjusted, but also maximally utilizing for distributed generation resource can be realized, it should
The intelligent distribution network that fault treating apparatus is applicable in is when carrying out power flowcontrol, if extremely by the load on transfer power distribution network bus
A certain micro-capacitance sensor cannot still change the direction of tide of the micro-capacitance sensor, and distributed generation resource is defeated in meeting other all micro-capacitance sensors
Power is constant out and meets under conditions of direction of tide is constant at other all micro-capacitance sensors access power distribution network nodes, continues to switch it
Load in his micro-capacitance sensor is to the micro-capacitance sensor, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
In order to guarantee that the micro-capacitance sensor containing distributed generation resource accesses power distribution network, the fault treating apparatus in the form of load always
The intelligent distribution network being applicable in is when carrying out power flowcontrol, if cannot still be changed by shifting the load on other micro-capacitance sensor buses
The direction of tide for becoming a certain micro-capacitance sensor access power distribution network, then reduce the output power of distributed generation resource in the micro-capacitance sensor, until should
The direction of tide that micro-capacitance sensor accesses at power distribution network node changes.
Detailed description of the invention
Fig. 1 is intelligent distribution network system configuration diagram of the present invention；
Fig. 2 is that intelligent distribution network bus load of the present invention turns for wiring schematic diagram；
Fig. 3 is that the present invention is based on the intelligent distribution network bus loads of direction of tide to turn for flow diagram；
Fig. 4 is that intelligent distribution network of the present invention and micro-grid load are coordinated to turn for wiring schematic diagram；
Fig. 5 is that the present invention is based on the intelligent distribution networks of direction of tide and micro-grid load to coordinate to turn for flow diagram.
Specific embodiment
With reference to the accompanying drawing, further details of the technical solution of the present invention.
Intelligent distribution network flow control method embodiment containing micro-capacitance sensor of the invention:
Control method of the invention includes the following steps:
1) direction of tide at the output power and each micro-capacitance sensor access power distribution network node of each distributed generation resource is obtained in real time；
If 2) trend of some micro-capacitance sensor flows to power distribution network, guaranteeing the constant item of all distributed power source output powers
Under part, switch the load on power distribution network to the micro-capacitance sensor, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
The micro-capacitance sensor of access power distribution network can be one or more while occur accessing direction of tide change at power distribution network node
Change, when the trend for multiple micro-capacitance sensors occur flows to power distribution network, the control of direction of tide can be carried out using above-mentioned control method.
In order to make each micro-grid load keep balance and coordinate, if judging, the trend of some micro-capacitance sensor flows to power distribution network
And some belongs to the load in the micro-capacitance sensor originally and has turned to supply other micro-capacitance sensors, then is meeting other micro-capacitance sensors access distribution
Under conditions of net direction of tide is constant, the load in the micro-capacitance sensor preferentially is belonged to originally from the switching of other micro-capacitance sensors, then switches again and matches
Load on power grid.
In order to further ensure not only realizing that direction of tide is adjusted, but also maximally utilizing for distributed generation resource can be realized, if
By the load on transfer power distribution network bus to a certain micro-capacitance sensor, it cannot still change the direction of tide of the micro-capacitance sensor, meet
Distributed power source output power is constant in other all micro-capacitance sensors and meets tide at other all micro-capacitance sensor access power distribution network nodes
Under conditions of stream direction is constant, continue to switch the load in other micro-capacitance sensors to the micro-capacitance sensor, until the micro-capacitance sensor accesses distribution
Direction of tide at net node changes.
In order to guarantee that the micro-capacitance sensor containing distributed generation resource accesses power distribution network in the form of load always, if by shifting other
Load on micro-capacitance sensor bus cannot still change the direction of tide of a certain micro-capacitance sensor access power distribution network, then reduce in the micro-capacitance sensor
The output power of distributed generation resource, until the direction of tide at micro-capacitance sensor access power distribution network node changes.Wherein, it needs to reduce
When trend flows to the output power of distributed generation resource in the micro-capacitance sensor of power distribution network, the power distribution network bus switched in the micro-capacitance sensor is negative
Lotus and other micro-grid loads still access in the micro-capacitance sensor.
Intelligent distribution network tidal current controller embodiment containing micro-capacitance sensor of the invention:
Intelligent distribution network tidal current controller containing micro-capacitance sensor of the invention is for realizing the intelligent distribution network containing micro-capacitance sensor
Flow control method, the particular content of the intelligent distribution network flow control method containing micro-capacitance sensor are shown in a kind of above-mentioned intelligence containing micro-capacitance sensor
Energy distribution power flow control method embodiment, no longer elaborates here.Control device in this implementation is generally distribution host
It stands system.
Intelligent distribution network fault handling method embodiment containing micro-capacitance sensor of the invention:
Intelligent distribution network fault handling method containing micro-capacitance sensor of the invention is the distribution network system other than micro-capacitance sensor
Place breaks down, then according to traditional power distribution network relay protection configuration method handling failure, if breaking down inside micro-capacitance sensor,
Micro-capacitance sensor is directly cut off, by micro-capacitance sensor isolated operation fault handling method handling failure.Above-mentioned fault handling method is suitable for containing
The micro-capacitance sensor of distributed generation resource accesses the intelligent distribution network of power distribution network in the form of load always, and contains distributed electrical to realize
The micro-capacitance sensor in source accesses power distribution network in the form of load always, and power distribution network controls power distribution network system using a kind of flow control method
Direction of tide of uniting is stablized, which, which is specifically shown in the above-mentioned intelligent distribution network flow control method containing micro-capacitance sensor, implements
Example, here no longer detailed elaboration.After the micro-capacitance sensor isolated operation handling failure of failure, distribution network system is still accessed, it is real
Now it is incorporated into the power networks.
Wherein, traditional power distribution network relay protection configuration method is the prior art such as three-step charging and inverse time lag mistake
Stream protection etc., when protected circuit primary side current reaches some setting valve, can use the protective device being mounted at this
Possessed transient current fast tripping protection, the specified time three-step chargings such as current quick and overcurrent protection phase interworking
It closes, in the case where ensureing enough sensitivity, realizes instantaneous excision failure, the target of protection circuit overall length；Or using short circuit
Electric current is bigger, and protection act time limit shorter inverse-time overcurrent protection realizes quick-action and selective protection line related.Micro- electricity
Net isolated operation fault handling method is protected using the two-part that the prior art such as overcurrent protection is combined with negative phase-sequence overcurrent protection
Shield scheme is combined using three-phase current and zero-sequence current as protection scheme of failure criterion realization micro-capacitance sensor isolated operation etc.,
Specific implementation process is the prior art, is no longer elaborated here.
Intelligent distribution network fault treating apparatus embodiment containing micro-capacitance sensor of the invention:
Intelligent distribution network fault treating apparatus containing micro-capacitance sensor of the invention is for realizing following trouble handling function: when micro-
Distribution network system somewhere other than power grid is broken down, then according to traditional power distribution network relay protection configuration method handling failure,
If breaking down inside micro-capacitance sensor, micro-capacitance sensor is directly cut off, by micro-capacitance sensor isolated operation fault handling method handling failure.It should
Fault treating apparatus is suitable for the intelligent distribution network that the micro-capacitance sensor containing distributed generation resource accesses power distribution network in the form of load always,
And in order to realize that the micro-capacitance sensor containing distributed generation resource accesses power distribution network in the form of load always, intelligent distribution network uses a kind of tide
Method of flow control is stablized to control distribution network system direction of tide, which is specifically shown in the above-mentioned intelligence containing micro-capacitance sensor
Distribution power flow control method embodiment, here no longer detailed introduction.The micro-capacitance sensor isolated operation handling failure of failure
Afterwards, distribution network system is still accessed, realization is incorporated into the power networks.
Wherein, traditional power distribution network relay protection configuration method and micro-capacitance sensor isolated operation fault handling method are shown in containing micro- electricity
The intelligent distribution network fault handling method of net traditional power distribution network relay protection configuration method and micro-capacitance sensor as described in the examples
Isolated operation fault handling method, here no longer detailed introduction.
Further details of introduction is made to above-described embodiment below.
Fig. 1 gives a kind of framework of intelligent distribution network system, which includes distribution network master station system, distribution
Network source, power distribution network bus, power distribution network bus load feeder line L0i (i=1,2 ..., p), by distributed generation resource DG1 and negative
Micro-capacitance sensor (Micro-Grid, MG) MG1 that lotus feeder line L1j (j=1,2 ..., n) is constituted, by distributed generation resource DG2 and negative
Micro-capacitance sensor (Micro-Grid, the MG) MG2 of lotus feeder line L2k (k=1,2 ..., m) composition and relative breaker etc. are constituted.
Distribution network master station system receives the operation information of intelligent distribution network, real-time analysis distribution formula power supply DG1 and distribution
Direction of tide at the output power of power supply DG2, micro-capacitance sensor MG1 and micro-capacitance sensor MG2 access power distribution network node 1, node 2；If going out
Existing micro-capacitance sensor MG1 (micro-capacitance sensor MG2) is then meeting distributed generation resource DG1 and distributed generation resource DG2 is defeated to power distribution network output power
Under conditions of power is constant out, successively switch the load L0i (i=1,2 ..., p) on power distribution network bus to micro-capacitance sensor MG1 (micro- electricity
Net MG2), until the trend at micro-capacitance sensor MG1 (micro-capacitance sensor MG2) access power distribution network node 1 (node 2) flows to micro- electricity by power distribution network
It nets MG1 (micro-capacitance sensor MG2), if the distribution network system other than micro-capacitance sensor MG1 and micro-capacitance sensor MG2 breaks down at this time, by tradition
Power distribution network relay protection scheme scheme handling failure；If breaking down in micro-capacitance sensor MG1 or micro-capacitance sensor MG2, micro- electricity is cut off
Net handles dependent failure by micro-capacitance sensor isolated operation fault handling method, and after the micro-capacitance sensor troubleshooting of isolated operation, still connects
Enter intelligent distribution network system, realization is incorporated into the power networks；Above-mentioned bus load turns for as shown in Figure 2,3 with process flow.In Fig. 2
QF01 ... QF0p, QF01 ' ... QF0p ' are breaker, for realizing power distribution network bus load in power distribution network bus and micro-capacitance sensor
Switch on MG1, micro-capacitance sensor MG2 bus.
In above-mentioned adjustment process, if being turned by power distribution network bus load for can not achieve micro-capacitance sensor MG1 (micro-capacitance sensor MG2)
Trend at access power distribution network node 1 (node 2) flows to micro-capacitance sensor MG1 (micro-capacitance sensor MG2) by power distribution network, then continues through successively
Turn for the load L2k (k=1,2 ..., m) (L1j (j=1,2 ..., n)) to micro-capacitance sensor MG1 in micro-capacitance sensor MG2 (micro-capacitance sensor MG1)
(micro-capacitance sensor MG2), until the trend at micro-capacitance sensor MG1 (micro-capacitance sensor MG2) access power distribution network node 1 (node 2) is by power distribution network stream
To micro-capacitance sensor MG1 micro-capacitance sensor (MG2)；If by turning the load in distribution network bus load and micro-capacitance sensor MG2 (micro-capacitance sensor MG1)
It still can not achieve the trend at micro-capacitance sensor MG1 (micro-capacitance sensor MG2) access power distribution network node 1 (node 2) and micro- electricity flowed to by power distribution network
It nets MG1 (micro-capacitance sensor MG2), then further realizes section by reducing the output power of distributed generation resource DG1 (distributed generation resource DG2)
Trend at 1 (node 2) of point flows to micro-capacitance sensor MG1 (micro-capacitance sensor MG2) by power distribution network；Above-mentioned load transfer and process flow are as schemed
4, shown in 5, QF11 ... QF1n in Fig. 4, QF21 ... QF2n indicate breaker, for realizing micro-capacitance sensor MG1 bus load, micro-
Power grid MG2 bus load switches on micro-capacitance sensor MG1 bus and micro-capacitance sensor MG2 bus.
In the above process, if there is micro-capacitance sensor MG1 (micro-capacitance sensor MG2) to power distribution network output power, and micro-capacitance sensor MG1 is (micro-
Power grid MG2) in have a load previously adjust micro-capacitance sensor MG2 (micro-capacitance sensor MG1) direction of tide when be switched to it is micro-
Power grid MG2 (micro-capacitance sensor MG1), then, when adjusting the direction of tide of micro-capacitance sensor MG1 (micro-capacitance sensor MG2), guaranteeing micro-capacitance sensor
MG2 (micro-capacitance sensor MG1) direction of tide is constant and micro-capacitance sensor MG2 (micro-capacitance sensor MG1) in distributed generation resource distributed generation resource DG2 (point
Cloth power supply DG1) output power it is constant under conditions of, will preferentially belong to originally in the load transfer of micro-capacitance sensor MG1 (micro-capacitance sensor MG2)
To micro-capacitance sensor MG1 (micro-capacitance sensor MG2), power distribution network bus load is then turned into supply micro-capacitance sensor MG1 (micro-capacitance sensor MG2), then will
The load transfer in micro-capacitance sensor MG2 (micro-capacitance sensor MG1) is belonged to originally to micro-capacitance sensor MG1 (micro-capacitance sensor MG2), is finally to reduce distributed electrical
The output power of source DG1 (distributed generation resource DG2).
Method and device in the above embodiment of the present invention passes through association according to real-time analysis intelligent distribution network operation information
Adjust intelligent distribution network system power load distributing and distributed generation resource output power, ensure the micro-capacitance sensor containing distributed generation resource always with
The form of load accesses intelligent distribution network, and traditional relay protection allocation plan is utilized in the case where intelligent distribution network failure
Dependent failure is handled, the difficulty of the intelligent distribution network troubleshooting containing distributed generation resource is reduced, is improved at intelligent distribution network failure
The efficiency of reason realizes maximally utilizing for distributed generation resource.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or implementation combining software and hardware aspects can be used in the application
The form of example.Moreover, can be used can in the computer that one or more wherein includes computer usable program code by the application
With the computer program product implemented in storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Form.
The application is reference according to the method for the embodiment of the present application, the flow chart of equipment (system) and computer program product
And/or block diagram describes.It should be understood that each process in flowchart and/or the block diagram can be realized by computer program instructions
And/or the combination of the process and/or box in box and flowchart and/or the block diagram.It can provide these computer programs to refer to
Enable the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate
One machine so that by the instruction that the processor of computer or other programmable data processing devices executes generate for realizing
The device for the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.Base of the invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in introduction according to the present invention
The model of shape, formula, parameter do not need to spend creative work.It is right without departing from the principles and spirit of the present invention
The change, modification, replacement and modification that embodiment carries out are still fallen in protection scope of the present invention.
Claims (10)
1. a kind of intelligent distribution network flow control method containing micro-capacitance sensor, which is characterized in that the control method includes the following steps:
1) direction of tide at the output power and each micro-capacitance sensor access power distribution network node of each distributed generation resource is obtained in real time；
If 2) trend of some micro-capacitance sensor flows to power distribution network, guaranteeing the constant condition of all distributed power source output powers
Under, switch the load on power distribution network to the micro-capacitance sensor, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
2. the intelligent distribution network flow control method according to claim 1 containing micro-capacitance sensor, which is characterized in that if judging
The trend of some micro-capacitance sensor flows to power distribution network and some load belonged to originally in the micro-capacitance sensor has turned to supply other micro- electricity
Net, then meet other micro-capacitance sensors access distribution power flow direction it is constant under conditions of, preferentially from other micro-capacitance sensors switching belong to originally
In the load of the micro-capacitance sensor, then switch the load on power distribution network again.
3. the intelligent distribution network flow control method according to claim 1 containing micro-capacitance sensor, which is characterized in that if by turning
The load on power distribution network bus is moved to a certain micro-capacitance sensor, cannot still change the direction of tide of the micro-capacitance sensor, meet other institutes
There is in micro-capacitance sensor distributed power source output power constant and meets direction of tide at other all micro-capacitance sensors access power distribution network nodes
Under conditions of constant, continue to switch the load in other micro-capacitance sensors to the micro-capacitance sensor, until the micro-capacitance sensor accesses power distribution network node
The direction of tide at place changes.
4. the intelligent distribution network flow control method according to claim 3 containing micro-capacitance sensor, which is characterized in that if by turning
The load moved on other micro-capacitance sensor buses cannot still change the direction of tide of a certain micro-capacitance sensor access power distribution network, then it is micro- to reduce this
The output power of distributed generation resource in power grid, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
5. a kind of intelligent distribution network tidal current controller containing micro-capacitance sensor, which is characterized in that the control device for realizing with
Lower function: 1) direction of tide at the output power and each micro-capacitance sensor access power distribution network node of each distributed generation resource is in real time obtained；
If 2) trend of some micro-capacitance sensor flows to power distribution network, under conditions of guaranteeing that all distributed power source output powers are constant, cut
The load on power grid is changed to the micro-capacitance sensor, until the direction of tide at micro-capacitance sensor access power distribution network node changes.
6. the intelligent distribution network tidal current controller according to claim 5 containing micro-capacitance sensor, which is characterized in that the control
Device is also used to realize following functions: if judging, the trend of some micro-capacitance sensor flows to power distribution network and some is belonged to originally in this
The load of micro-capacitance sensor has turned to supply other micro-capacitance sensors, then is meeting the constant item in other micro-capacitance sensors access distribution power flow direction
Under part, the load in the micro-capacitance sensor preferentially is belonged to originally from the switching of other micro-capacitance sensors, then switches the load on power distribution network again.
7. the intelligent distribution network tidal current controller according to claim 5 containing micro-capacitance sensor, which is characterized in that the control
Device is also used to realize following functions: if cannot still be changed by the load on transfer power distribution network bus to a certain micro-capacitance sensor
The direction of tide of the micro-capacitance sensor, distributed power source output power is constant in meeting other micro-capacitance sensors and meets other micro-capacitance sensors and connects
Enter under conditions of direction of tide is constant at power distribution network node, continues to switch load in other micro-capacitance sensors to the micro-capacitance sensor, until
The direction of tide that the micro-capacitance sensor accesses at power distribution network node changes.
8. the intelligent distribution network tidal current controller according to claim 7 containing micro-capacitance sensor, which is characterized in that the control
Device is also used to realize following functions: if cannot still change a certain micro-capacitance sensor by shifting the load on other micro-capacitance sensor buses
The direction of tide of power distribution network is accessed, then by reducing the output power of distributed generation resource in the micro-capacitance sensor, until the micro-capacitance sensor connects
Enter the direction of tide at power distribution network node to change.
9. a kind of intelligent distribution network fault handling method containing micro-capacitance sensor, which is characterized in that the fault handling method is for using
The intelligent distribution network of intelligent distribution network flow control method described in claim 1-4 any one containing micro-capacitance sensor, at the failure
Reason method are as follows: the distribution network system somewhere other than micro-capacitance sensor is broken down, then according to traditional power distribution network relay protection scheme
Method handling failure directly cuts off micro-capacitance sensor, by micro-capacitance sensor isolated operation troubleshooting side if breaking down inside micro-capacitance sensor
Method handling failure.
10. a kind of intelligent distribution network fault treating apparatus containing micro-capacitance sensor, which is characterized in that the fault processing system is for using
The intelligent distribution network of intelligent distribution network flow control method described in claim 1-4 any one containing micro-capacitance sensor, the failure
Processing unit is for realizing following trouble handling function: the distribution network system somewhere other than micro-capacitance sensor is broken down, then according to
Traditional power distribution network relay protection configuration method handling failure directly cuts off micro-capacitance sensor, presses if breaking down inside micro-capacitance sensor
Micro-capacitance sensor isolated operation fault handling method handling failure.
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