CN104617655B

CN104617655B - A kind of method and apparatus for being automatically controlled to switch element in power system

Info

Publication number: CN104617655B
Application number: CN201410804312.8A
Authority: CN
Inventors: 衣斌; 李孝众; 张炳华
Original assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Current assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Priority date: 2014-12-19
Filing date: 2014-12-19
Publication date: 2018-03-06
Anticipated expiration: 2034-12-19
Also published as: CN104617655A

Abstract

It is an object of the invention to provide a kind of method and apparatus for being used to adjust the closure state of switch element in power system.Wherein, current operating conditions of the invention according to power system Zhong Ge roads input power, determine the corresponding target connected state of power system, if the target closed state of the current closure state of each switch element in power system and each switch element corresponding to target connected state is not inconsistent, the respective switch unit in power system is adjusted according to target closed state.

Description

A kind of method and apparatus for being automatically controlled to switch element in power system

Technical field

The present invention relates to the automatic control technology field of power system, more particularly to one kind to be used for being switched in power system The technology that unit automatically controls.

Background technology

With the continuous social and economic development, dependence of all trades and professions to electric power is more and more stronger, and power supply reliability is wanted More and more higher is sought, at the same time, power system scale constantly expands, system complexity is continuously increased, and power system basis is set Impose and operation and maintenance system proposes huge challenge, particularly in face of huge garden scale, how to ensure safe and continuous power supply On the premise of, by firm and rational automation control system, power-supply system automatic operating degree is improved, reduces and safeguards pipe Manage cost, it has also become power system construction and operation management personnel problems faced.

Currently, the Automated condtrol of power system typically (is often referred to simply as by " alternate power autocast use " device " prepared auto restart " device) realize.The core concept of " prepared auto restart " device is a kind of logical thinking of positive direction, namely according to power supply And the standing state of the switch element such as breaker, bus connection switch, the possible state of its next step is analyzed, and work out corresponding adjust Whole prediction scheme.Specifically, the switch element such as the running status of " prepared auto restart " device detection input power and breaker, bus connection switch Closure state and according to these states carry out logic judgment, when the running status of input power and the closed form of switch element When state meets predetermined logical relation, " prepared auto restart " device will perform predetermined operation.

The detailed process of above-mentioned " forward direction " logic judgment is explained further below in conjunction with accompanying drawing example.

Fig. 1 shows the schematic diagram of one 10 kilovolts of (kV) power systems.

As shown in figure 1, the 10kV power systems include two bus section, busbar sections, I sections and II sections, each bus section, busbar section are respectively labeled as Required supply voltage is 10kV.Wherein, the power system also includes 4 road input powers：The 10kV bavins of I sections can be directly connected to Energy source G1 and 10kV mains supply N1, the 10kV mains supply N2 and 10kV bavin energy sources G2 of II sections can be directly connected to.Per road By breaker come the access and disconnection of control input power supply between input power and bus section, busbar section.Specifically, breaker 3DL is used for G1 access and disconnection is controlled, 1DL is used for the access and disconnection for controlling N1, and 2DL is used for the access and disconnection for controlling N2, and 4DL is used for the access and disconnection for controlling G2.Connected mode between two I sections, II sections bus section, busbar sections has contact to connect for single busbar. Bus connection switch 5DL is used to control the connection and disconnection between two bus section, busbar sections.When 5DL is closed, connected between I sections and II sections. Wherein, mains supply is arranged to the power supply preferentially powered.

Hereinafter, for example bright prior art is carried out with a kind of particular power source Run-time scenario of the power system shown in Fig. 1 In logic judgment process.For example, I sections decompression, II sections have electricity, now need automatic brake separating I section civil power service entrance switch and close I sections With the bus connection switch between II sections, Fig. 2 shows the schematic diagram of respective logic relation.

As shown in Fig. 2 when meet I sections decompression and without incoming relay-protection jump signal, II sections have pressure and without incoming relay-protection jump signal, When prepared auto restart change-over switch input, I sections inlet wire close, mother divides position, II sections inlet wire closes, prepared auto restart I section inlet wire separating brake orders are held OK, and next logic judgment is triggered；Next logic judgment be triggered and meet II sections have pressure and without incoming relay-protection jump signal, When prepared auto restart change-over switch input, CB points of position of I sections inlet wire, mother divide position, the conjunction of II sections inlet wire, latter two logic judgment is triggered, from And realize prepared auto restart bus connection switch and close a floodgate.

As can be seen that only realizing that a simple single channel decompression closes the operation of mother, existing logic judgment process has compared It is more complicated.And for the power system shown in Fig. 1, Fig. 2 is only one of which logic judgment, in actual applications, need To be that power system is pre-configured with a variety of logic judgments.

Therefore, the presence problems with of the logic judgment mechanism of existing " prepared auto restart " device：

(1) because each logic judgment concurrent process works, overall process is numerous and diverse, to Operation of Electric Systems stability and reliably Property require high.

(2) because each logic judgment process is distributed in different physical location concurrent workings, it is directed to plenty of time delay Judge, need to accurately meet the delay time of each operation, avoid starting multiple logic judgments simultaneously, avoid system from power supply occur hitting Car phenomenon, high is required to the accuracy of logic judgment.

(3) conversion being directed between the state being likely to occur in system is, it is necessary to default various logic relation, people in the art Member's normally only predetermined fraction main process, it is difficult to accomplish to meet whole running statuses.Even if all shapes are preset using exhaustive mode The logic judgment process of state, overall process will become unthinkable complexity, and the reliability of system can also reduce.

(4) foundation of logic judgment is particularly important, and setting excessively can strictly cause system logic numerous and diverse, reliability drop It is low；Set the grasp that excessively can loosely cause system logic parallel risk to be present difficult.

(5) when needing adjustment wherein one to go out logic judgment process and corresponding operating, it is difficult to assess this adjustment to it The influence of its operating procedure.

The content of the invention

It is an object of the invention to provide a kind of scheme for being automatically controlled to switch element in power system.More specifically Ground, the invention provides a kind of method and apparatus for being used to adjust the closure state of switch element in power system.

According to an aspect of the invention, there is provided a kind of be used to adjust the closure state of switch element in power system Method, wherein, the power system has at least two-way input power；

Wherein, this method includes：

- according to the current operating conditions of wherein each road input power, determine the corresponding target connected state of the power system State；

If corresponding to the current closure state of each switch element in the-power system and the target connected state The target closed state of each switch element be not inconsistent, corresponding being opened according to what the target closed state adjusted in the power system Close unit.

According to another aspect of the present invention, a kind of closed form for being used to adjust switch element in power system is additionally provided The device of state, wherein, the power system has at least two-way input power；

Wherein, the device includes：

For the current operating conditions according to wherein each road input power, the corresponding target connection of the power system is determined The device of state；

If current closure state and the target connected state institute for each switch element in the power system The target closed state of corresponding each switch element is not inconsistent, and the phase in the power system is adjusted according to the target closed state The device of inductive switch unit.

Compared with prior art, the current operating conditions of the invention according to power system Zhong Ge roads input power, it is determined that electric The corresponding target connected state of Force system, if the current closure state of each switch element in power system and target connected state The target closed state of each switch element corresponding to state is not inconsistent, and accordingly opening in power system is adjusted according to target closed state Close unit.

Beneficial effects of the present invention mainly have following 5 aspects：

(1) current operating conditions of the invention by each road input power of decentralized supervisory control, and determine that power system is corresponding Target connected state, avoid the risk of each logic judgment concurrent process work of " prepared auto restart " device.

(2) the target connected state of power system is limited, therefore is easy to determine, so as to which logical relation is simple, system reliability It is high.

(3) process according to the respective switch unit in the target closed state adjustment power system of switch element is simply clear It is clear.

(4) present invention can be covered and respectively inputted in all power systems using the target connected state of power system to be oriented to The process changed between the state of the running status of power supply, improve the stability of power system.

(5) logic control corresponding relation is clear and definite, is easy to be adjusted flexibly according to application demand, and it is various fixed to better adapt to Inhibition and generation requirement.

Brief description of the drawings

By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other Feature, objects and advantages will become more apparent upon：

Fig. 1 shows the schematic diagram of one 10 kilovolts of power systems；

Fig. 2 shows a kind of schematic diagram of logic judgment based on the power system shown in Fig. 1；

Fig. 3 shows a kind of closure state for being used to adjust switch element in power system according to an embodiment of the invention Method flow diagram；

Fig. 4 shows the schematic flow sheet in accordance with a preferred embodiment of the present invention based on the power system shown in Fig. 1.

Fig. 5 shows a kind of closed form for being used to adjust switch element in power system in accordance with another embodiment of the present invention The schematic device of state.

Same or analogous reference represents same or analogous part in accompanying drawing.

Embodiment

The present invention is described in further detail below in conjunction with the accompanying drawings.

The present invention can be realized by any equipment with central control ability, specific such as central control equipment.Specifically, Central control equipment determines that the corresponding target of power system connects according to the current operating conditions of power system Zhong Ge roads input power Logical state；Then, if corresponding to the current closure state of each switch element in power system and the target connected state The target closed state of each switch element be not inconsistent, central control equipment adjusts the phase in power system according to target closed state Inductive switch unit.

For the sake of simple declaration, the present invention only adjusts the closed form of switch element in power system with central control equipment State is illustrated.Those skilled in the art will be understood that other are existing or what is be likely to occur from now on has central control ability Equipment be such as applicable to the present invention, should also be included within the scope of the present invention, and be incorporated herein by reference herein.

For the sake of simple declaration, the present invention is more to be illustrated with power system illustrated in fig. 1.That is, the power system Including two bus section, busbar sections, wherein each bus section, busbar section has been directly connected to two-way input power, so as to the power train, altogether four tunnels input Power supply, also, there is contact to connect by single busbar between two bus section, busbar sections.

Those skilled in the art will be understood that power system illustrated in fig. 1 is only for example, and be not construed as to this hair Bright any restrictions, any existing other schemes or the scheme being likely to occur from now on are such as applicable to the present invention, should also be included in Within the scope of the present invention, and it is incorporated herein by reference herein.

Fig. 3 shows method flow diagram according to an embodiment of the invention, and it specifically illustrates a kind of for adjusting power train The process of the closure state of switch element in system.As shown in figure 1, in step sl, central control equipment is according in power system The current operating conditions of each road input power, determine the corresponding target connected state of power system；In step s 2, if electric power The target of the current closure state of each switch element in system and each switch element corresponding to the target connected state is closed Conjunction state is not inconsistent, and central control equipment adjusts the respective switch unit in power system according to target closed state.

Specifically, in step sl, central control equipment is according to the current operation shape of power system Zhong Ge roads input power State, determine the corresponding target connected state of power system.

Here, power system has at least two-way input power.

Wherein, input power include but is not limited to it is various can be to the power supply of power system power supply, such as mains supply, Chai Fa Power supply etc..Here, central control equipment can set identical priority to all input powers, input power is not differentiated between；Or Person, central control equipment can also set different priority to different classes of input power, namely distinguish different classes of Input power, for example, the priority of primary power cource is higher than stand-by power supply, wherein, primary power cource such as mains supply, stand-by power supply is such as Bavin energy source.

The running status of input power includes but is not limited to open and close.Here, pass through a switch per road input power Unit accesses power system or disconnected.Switch element includes but is not limited to various company's on-offs available for control circuit The control device opened, breaker, bus connection switch, on-load switch etc..

Wherein, central control equipment can determine the current operating conditions of each road input power in several ways.For example, It is following 2 kinds that central control equipment determines that the mode of the current operating conditions of each road input power includes but is not limited to：

1) central control equipment can be changed according to each road input power running status triggered state notification message come Determine the current operating conditions of power system Zhong Ge roads input power.

Wherein, state notification message is used for the change for indicating the running status of input power.For example, state notification message can Only indicate that the running status of input power changes, so as to which central control equipment can be according to the running status before input power The running status after its change is determined, such as is changed into opening from closing or is changed into closing from unlatching.And for example, state notification message can be straight The change that the running status of instruction input power occurs is connect, such as is changed into opening from closing or is changed into closing from unlatching.

When the running status of input power changes, corresponding state notification message, which can be triggered, to be sent to Entreat control device；Correspondingly, central control equipment can receive the state notification message, and be determined according to the state notification message The current operating conditions of input power.

2) central control equipment detects the current operating conditions of each road input power.

Here, central control equipment can determine the current operation shape of each road input power by way of active detecting State.

Wherein, central control equipment can intermittently detect the current operating conditions of each road input power, such as cycle Property every detection in 5 seconds once, or randomly detected.Preferably, to realize the high stability of power system, center is controlled Control equipment should detect the current operating conditions of each road input power in real time, that is, central control equipment should be between the shorter time Every always detect each road input power current operating conditions with not resting.

The target connected state of power system is used to directly or indirectly indicate that the target of each switch element in power system is closed Conjunction state.Wherein, the closure state of switch element such as closed and disconnected.

Specifically, target connected state can directly indicate the target closed state of each switch element, as switch element closes Close or switch element disconnects.Fig. 1 is referred to for example, coordinating, when only civil power N1 current operating conditions is open, corresponding target Connected state can be that " breaker 3DL, 4DL are disconnected, and breaker 2DL disconnects, and breaker 1DL closures, bus connection switch 5DL is closed Close ".

Or target connected state can also indicate the target closed state of each switch element indirectly.For example, target connects State can indicate the input power specifically powered.Fig. 1 is referred to for example, coordinating, is to open in only civil power N1 current operating conditions Qi Shi, corresponding target connected state can be " being powered by mains supply N1 ".

Indicate the situation of the target closed state of each switch element indirectly for target connected state, target connected state with Corresponding relation be present between the target closed state of each switch element.For example, referring still to Fig. 1, if target connected state for " by Mains supply N1 powers ", target closed state is respectively " breaker 3DL, 4DL to each switch element accordingly in the power system Disconnect, breaker 2DL disconnects, breaker 1DL closures, bus connection switch 5DL closures ".

Here, current operating conditions of the central control equipment according to power system Zhong Ge roads input power, calculate to come in real time Determine the corresponding target connected state of power system.

Or central control equipment can be previously according to the possibility running status of power system Zhong Ge roads input power, really Determine the corresponding target connected state of power system, and each corresponding relation determined by preservation.Specific implementation will be follow-up interior It is described in detail in appearance.Accordingly, central control equipment can be looked into according to the current operating conditions of power system Zhong Ge roads input power Above-mentioned preserved corresponding relation is ask, determines the corresponding target connected state of power system.Specifically, per the fortune of road input power Row state can be to be turned on and off, and have multiple combinations, every group of combination so as to the possibility running status of each road input power Corresponding to the target connected state of one group of power system.Every group of target connected state includes one or more target connected states State, this depends on the different purposes of system.

For example, the corresponding relation between the possibility running status of each road input power and the target connected state of power system Shown in table 1 specific as follows：

Table 1

As shown in table 1, n represents the quantity of input power in power system, and n can be any integer value.Z represents power train The quantity of the combination of the running status of each input power in system.

Preferably, target connected state can be to be represented by numbering, such as state 1, state 2, state 3.Therefore, also need Comparison list is established, each status number is corresponding with objectives connected state.

Multiple targets that a kind of combination for the possibility running status of each road input power corresponds to power system connect Any of which target connected state can be defined as target connected state by the situation of state, central control equipment, and specific Determination mode can have a variety of, such as determine or determine at random according to predetermined set.

More specifically, target connected state includes but is not limited to following any one：

1) can connected state.

Here, can connected state mean to make whole power system to obtain the connected state of power supply.

Specifically, when the running status of each input power is determined, it is understood that there may be one of corresponding power system or It is multiple can connected state.Fig. 1 is referred to for example, coordinating, when mains supply N1, N2 are closed, and bavin energy source G1, G2 are opened, can be connected Logical state includes following 3 kinds：A) powered for I sections by G1, powered by G2 for II sections；B) it is that I sections and II sections are powered by G1；C) by G2 Powered for I sections and II sections.Accordingly, central control equipment can by any of which can connected state be defined as target connected state State, and specific determination mode can include a variety of, such as determine or determine at random according to predetermined set.

2) best connectivity state.

Here, best connectivity state is it is meant that the connected state that power system acquisition is powered under specific criteria.

Best connectivity state can have multiple standards, such as：A) primary power cource is preferentially powered；B) input power is only all the way One bus section, busbar section power supply；C) input power is whole power system power supply all the way；D) it is different mothers by different input powers Line segment power supply etc..For example, example is still connected, when mains supply N1, N2 are closed, and bavin energy source G1, G2 are opened, based on above-mentioned standard B), best connectivity state now is that II sections are powered by G2 to be the power supply of I sections by G1.

Those skilled in the art will be understood that foregoing multiple standards are not mutually exclusive, best connectivity shape each other State can also meet multiple standards simultaneously, such as meet a) and b) two kinds of standards simultaneously.

Fig. 1 is referred to for example, coordinating, when mains supply N1, N2 are opened, and bavin energy source G1 is opened, G2 is closed, if needed same When meet a) and b) two kinds of standards, it is the power supply of I sections that best connectivity state, which should be by N1, by N2 is the power supply of II sections；If need simultaneously Meet a) and d) two kinds of standards, it is the power supply of I sections that best connectivity state, which should be by G1, by N2 is the power supply of II sections.

Based on single standard, when can not uniquely determine best connectivity state, central control equipment can use multiple marks Standard is screened, until only remaining one kind can connected state, and as unique best connectivity state.

In summary, best connectivity state be considered one kind can connected state, conversely, can connected state not necessarily For best connectivity state, meet standard can connected state be just best connectivity state.When only exist one kind can connected state when, This can connected state be considered best connectivity state.

Preferably, the input power of power system includes primary power cource and stand-by power supply.

Wherein, primary power cource is it is meant that be preferably the power supply of power system power supply.

Stand-by power supply is enabled to as power system power supply it is meant that when primary power cource can not be power system power supply Power supply.

Primary power cource and stand-by power supply can carry out different settings depending on different application scene, normally, can be by city Power supply is as primary power cource, and bavin energy source is as stand-by power supply.Alternately, can also be using bavin energy source as primary electricity Source, mains supply is as stand-by power supply.

Central control equipment can be according to corresponding to following two steps of i, ii determine power system target connected state：

If in i power systems at least all the way the current operating conditions of primary power cource for open, central control equipment according to The primary power cource wherein opened determines the corresponding target connected state of power system.

Here, if only for the current operating conditions of primary power cource to open, central control equipment can all the way in power system To determine the road primary power cource as whole power system power supply, that is, the target connected state of power system is " by the master opened Powered with power supply ".

If the current operating conditions of multichannel primary power cource are to open in power system, central control equipment can determine All or part of primary power cource in these primary power cources opened is whole power system power supply.This is construed as, in Centre control device can select one kind to be used as target connected state from multiple in connected state.Further, center control is set Standby to introduce other standards, it is shared defeated all the way that such as each bus section, busbar section is respectively connected to input power, most two bus section, busbar sections all the way Enter power supply etc., a best connectivity state can be uniquely determined in connected state from multiple.

If here, in power system at least all the way the current operating conditions of primary power cource for open, central control equipment The corresponding target connected state of power system can be determined according only to the primary power cource opened in power system, center control is set The standby current operating conditions that need not pay close attention to stand-by power supply, so as to which the speed for determining target connected state on the one hand can be improved, carry Rise the efficiency for calculating processing；On the other hand the stability of power system can be lifted, that is, now stand-by power supply running status Change does not interfere with the target connected state of power system.

If the current operating conditions of whole primary power cources are to close in ii power systems, central control equipment is according to each The current operating conditions of stand-by power supply determine the corresponding target connected state of power system.

Here, if only for the current operating conditions of stand-by power supply to open, central control equipment can all the way in power system To determine the road stand-by power supply as this power system power supply, that is, the target connected state of power system is " standby by what is opened Powered with power supply ".

If the current operating conditions of multichannel stand-by power supply are to open in power system, central control equipment can determine All or part of stand-by power supply in these stand-by power supplies opened is whole power system power supply.This is construed as, in Centre control device can select one kind to be used as target connected state from a variety of in connected state.Further, center control is set Standby to introduce other standards, it is shared defeated all the way that such as each bus section, busbar section is respectively connected to input power, most two bus section, busbar sections all the way Enter power supply etc., a best connectivity state can be uniquely determined in connected state from multiple.

It is highly preferred that power system can include multiple bus section, busbar sections, and each bus section, busbar section can be corresponding with one group of input electricity Source, every group of input power include primary power cource all the way and at least stand-by power supply all the way.That is, each bus section, busbar section has been directly connected to one Group input power, this group of input power Zhong Mei roads input power access the bus section, busbar section by a switch element respectively or broken therewith Open.For such a connected mode, it is sometimes referred to as herein " every group of input power is that a bus section, busbar section is powered ".

When power system includes multiple bus section, busbar sections, central control equipment also according to two steps of above-mentioned i and ii, When having primary power cource unlatching, each bus section, busbar section is powered by the primary power cource opened, when being opened without primary power cource, by opening Stand-by power supply each bus section, busbar section is powered.

Central control equipment it is corresponding can to predefine power system according to the possibility running status of each road input power All target connected states.

Wherein, the running status of input power includes but is not limited to open and close.

Central control equipment can combine the number of power sources of input power in power system, and determine each road input power can Can running status.

For example, power system includes input power P1 all the way, then the possibility running status of input power includes：" P1 is opened Open ", " P1 closings " both.

For another example, power system includes two-way input power P1 and P2, then the possibility running status of input power includes： " P1 open, P2 open ", " P1 is opened, and P2 is closed ", " P1 is closed, P2 is opened ", " P1 is closed, and P2 is closed " these four.

Those skilled in the art will be understood that the situation for including more multichannel input power for power system, center control Control equipment can also determine the possibility running status of corresponding each road input power.

Here, possibility running status of the central control equipment according to each road input power, it is corresponding to predefine power system The modes of all target connected states include but is not limited to following 4 kinds：

1) it is corresponding to predefine power system according only to the possibility running status of each road input power for central control equipment All target connected states.

This mode is at least applied to following power system architectures：

Only include a bus section, busbar section in power system, one or more input power is powered for the bus section, busbar section, arbitrarily all the way Input power support enough is powered for the bus section, busbar section.

For the sake of simple declaration, illustrated so that two-way input power is bus section, busbar section power supply as an example, central control equipment Can all target connected states be as shown in the following Table 2 accordingly with predetermined power system：

Table 2

2) central control equipment connects according to the possibility running status of each road input power with reference to the power supply between each bus section, busbar section Information is connect, predefines power system all target connected states accordingly.

This mode is at least applied to following power system architectures：

Power system includes at least two bus section, busbar sections, and each bus section, busbar section is corresponding with one or more input power, any one Input power support enough in road is powered for all bus section, busbar sections.

Here, for the sake of simple declaration, only illustrated so that power system includes two bus section, busbar sections as an example.

Here, power supply link information is including but not limited to following 2 kinds：

2.1) contact connects by single (more) bus between two bus section, busbar sections；

Here, more buses include at least two buses.It can be connected between two bus section, busbar sections by single busbar or more buses, from And it can be powered by the input power of a bus section, busbar section for other bus section, busbar sections being connected therewith by bus.

Further so that each bus section, busbar section has input power all the way as an example, such as I section of connection power supply P1, II section of connection power supply P2, central control equipment can all target connected states be as shown in the following Table 3 accordingly with predetermined power system：

Table 3

2.2) without contact between two bus section, busbar sections.

Here, independently come by respective defeated for the situation without contact, the two bus section, busbar sections between two bus section, busbar sections Enter power supply to be powered, so as to which central control equipment can be respectively that each bus section, busbar section determines its corresponding all target connection State.

Without contact between two bus section, busbar sections, one of bus section, busbar section includes illustrating exemplified by two-way input power, in Entreat the confirmable all target connected states of control device identical with the target connected state shown in table 2, therefore repeat no more, And it is incorporated herein by reference.

Accordingly, central control equipment can be according to the possibility running status of each road input power, with reference between each bus section, busbar section Power supply link information, predefine power system all target connected states accordingly.

3) central control equipment is born according to the possibility running status of each road input power with reference to the power supply of each road input power Lotus information, predefine power system all target connected states accordingly.

Wherein, power supply information on load means the ability that input power is capable of load bus section, busbar section institute subfam. Spiraeoideae.Power supply load is believed Breath is specific, and such as input power can support one or more bus section, busbar sections all the way.

This mode is at least applied to following power system architectures：

Power system includes one or more bus section, busbar sections, one or more direct-connected input power of each bus section, busbar section, two Connected or disconnected by a bus-tie circuit breaker between bus section, busbar section, arbitrarily input power supplies for two bus section, busbar sections enough all the way Electricity.

Here, for the sake of simple declaration, only with 3 bus section, busbar sections (such as respectively I section, II section, III section), each bus section, busbar section tool There is input power (such as respectively P1, P2, P3) all the way, input power can be to be illustrated exemplified by two bus section, busbar sections are powered all the way, Central control equipment can all target connected states be as shown in the following Table 4 accordingly with predetermined power system：

Table 4

4) central control equipment connects according to the possibility running status of each road input power with reference to the power supply between each bus section, busbar section The power supply information on load of information and each road input power is connect, predefines power system all target connected states accordingly.

Here, the power supply link information between above-mentioned each bus section, busbar section of combination predefines power system all targets accordingly The embodiment of connected state further can predefine power train with the power supply information on load of each road input power of above-mentioned combination The embodiment of the corresponding all target connected states of system is combined.

Therefore, this mode goes for more complicated power system architectures, such as：Power system includes at least two Bus section, busbar section, each bus section, busbar section are corresponding with one or more input power and powered for the bus section, busbar section, and arbitrarily input power is enough all the way Support and powered for one or more bus section, busbar sections.

In summary, central control equipment can predefine electric power according to the possibility running status of each road input power System all target connected states accordingly.

Here, the target closed state for only indicating each switch element indirectly with target connected state above is illustrated, in Centre control device can also determine directly to indicate the target connected state of the target closed state of each switch element.It is for example, central The target connected state for the target closed state for indicating each switch element indirectly can be presented in control device to user, so as to pass through With interacting for user, the target closed state of corresponding each switch element is inputted by user.

In step s 2, if the current closure state of each switch element in power system and target connected state institute are right The target closed state for each switch element answered is not inconsistent, and central control equipment is adjusted in power system according to target closed state Respective switch unit.

Here, switch element includes but is not limited to breaker, on-load switch, bus connection switch etc..

The closure state of switch element includes but is not limited to disconnect and closure.

Here, if target connected state directly indicates the target closed state of each switch element, central control equipment is then The target closed state of each switch element can directly be determined.

If target connected state indicates the target closed state of each switch element indirectly, central control equipment can be inquired about Target connected state and the corresponding relation of the target closed state of each switch element, so that it is determined that each switch element is target closed State.

Also, in order to ensure the safety of power system, when each switch element is adjusted to its target closed state, first hold Disconnection of the row wherein to partial switch unit, then perform the closure to other switch elements.

If the current operating conditions of all input powers are to close, central control equipment triggers a stand-by power supply and started Signal, to start at least stand-by power supply all the way.

Here, stand-by power supply is usually bavin energy source.

Here, if the current operating conditions of all input powers are to close in power system, central control equipment can To start stand-by power supply all the way, the stand-by power supply can also be the power system power supply, so as to meet the electricity consumption need of power system Ask.

As shown in figure 1,10 kilovolts of (kilovolt is referred to as kV) power systems include two bus section, busbar sections, respectively I sections and II Section, the supply voltage required for each bus section, busbar section is 10kV.Wherein, the power system also includes 4 road input powers：Supplied for I sections 10kV bavin energy source G1,10kV mains supply N1 of electricity, and 10kV mains supply N2,10kV bavin energy sources for the power supply of II sections G2.Breaker is used for the access and disconnection of control input power supply, and specifically, breaker 3DL is used to control G1,1DL to be used to control N1,2DL are used to control N2,4DL to be used to control G2.There is contact to connect by single busbar between two I sections, II sections bus section, busbar sections, it is female Connection switch 5DL is used for whether having contact between two bus section, busbar sections of control.

Those skilled in the art will be understood that the power system includes 4 road input powers, therefore, central control equipment The running status of each road input power determined is 16 kinds, specific as follows：

1) G1 is opened, and N1 is opened, and G2 is opened, and N2 is opened

2) G1 is closed, and N1 is opened, and G2 is opened, and N2 is opened

3) G1 is opened, and N1 is closed, and G2 is opened, and N2 is opened

4) G1 is opened, and N1 is closed, and G2 is closed, and N2 is opened

5) G1 is opened, and N1 is opened, and G2 is opened, and N2 is closed

6) G1 is closed, and N1 is closed, and G2 is opened, and N2 is opened

7) G1 is closed, and N1 is opened, and G2 is closed, and N2 is opened

8) G1 is closed, and N1 is opened, and G2 is opened, and N2 is closed

9) G1 is opened, and N1 is closed, and G2 is closed, and N2 is opened

10) G1 is opened, and N1 is closed, and G2 is opened, and N2 is closed

11) G1 is opened, and N1 is opened, and G2 is closed, and N2 is closed

12) G1 is closed, and N1 is closed, and G2 is closed, and N2 is opened

13) G1 is closed, and N1 is closed, and G2 is opened, and N2 is closed

14) G1 is closed, and N1 is opened, and G2 is closed, and N2 is closed

15) G1 is opened, and N1 is closed, and G2 is closed, and N2 is closed

16) G1 is closed, and N1 is closed, and G2 is closed, and N2 is closed

In the case where civil power is preferential, bavin energy source G1, G2 only need to just examine when two-way mains supply N1, N2 are turned off Consider, therefore, the running status for each road input power that central control equipment determines can be reduced to 7 kinds, specific as follows：

1) N1 is opened, and N2 is opened, and G1 is turned on and off, and G2 is turned on and off

2) N1 is opened, and N2 is closed, and G1 is turned on and off, and G2 is turned on and off

3) N1 is closed, and N2 is opened, and G1 is turned on and off, and G2 is turned on and off

4) N1 is closed, and N2 is closed, and G1 is opened, and G2 is opened

5) N1 is closed, and N2 is closed, and G1 is opened, and G2 is closed

6) N1 is closed, and N2 is closed, and G1 is closed, and G2 is opened

7) N1 is closed, and N2 is closed, and G1 is closed, and G2 is closed

As shown in figure 4, the running status of each above-mentioned each road input power both corresponds to a kind of the optimal of power system Connected state, respectively state 1, state 2, state 3 ... state 7；And each best connectivity state both corresponds to each switch The target closed state of unit, for example, the order closed afterwards according to first dividing switch element, state 1 correspond to " divide breaker 5DL, Divide breaker 3DL, 4DL, close breaker 1DL, 2DL ".

Accordingly, central control equipment can be according to the current operating conditions of power system Zhong Ge roads input power, it is determined that electric The corresponding target connected state of Force system, such as state 1；Then, if the current closure of each switch element in power system State and the target closed state of each switch element corresponding to target connected state are not inconsistent, if that is, in power system The current closure state of each switch element is not that the target closed state of each switch element corresponding to state 1 " divides breaker 5DL, divides breaker 3DL, 4DL, closes breaker 1DL, 2DL ", and central control equipment is according to " dividing breaker 5DL, divide breaker 3DL, 4DL, close the respective switch unit in breaker 1DL, 2DL " adjustment power system.

Fig. 5 shows schematic device in accordance with another embodiment of the present invention, and it specifically illustrates a kind of for adjusting electric power The device of the closure state of switch element in system, namely control device 10.As shown in figure 5, during control device 10 is installed in Entreat in control device, and specifically include device 11 and 12.

Specifically, device 11 determines power system phase according to the current operating conditions of power system Zhong Ge roads input power The target connected state (for ease of distinguishing, device 11 is referred to as connected state determining device 11 below) answered；If power system In each switch element current closure state and the target connected state corresponding to each switch element target closed shape State is not inconsistent, and the respective switch unit that device 12 is adjusted according to target closed state in power system (for ease of distinguishing, will fill below Put 12 and be referred to as switch element adjusting apparatus 12).

Specifically, connected state determining device 11 is according to the current operating conditions of power system Zhong Ge roads input power, really Determine the corresponding target connected state of power system.

Here, power system has at least two-way input power.

Wherein, input power include but is not limited to it is various can be to the power supply of power system power supply, such as mains supply, Chai Fa Power supply etc..Here, all input powers can be configured to identical priority, input power is not differentiated between；It is or different classes of Input power can also be arranged to different priority, namely different classes of input power is distinguished, for example, primary power cource Priority be higher than stand-by power supply, wherein, primary power cource such as mains supply, stand-by power supply such as bavin energy source.

Preferably, control device 10 can also include a running status determining device (not shown in Fig. 5), and running status is true The current operating conditions of each road input power can be determined in several ways by determining device.For example, running status determining device is true The mode of the current operating conditions of Ding Ge roads input power includes but is not limited to following 2 kinds：

1) running status determining device can change triggered state notifying according to each road input power running status and disappear Cease to determine the current operating conditions of power system Zhong Ge roads input power.

Wherein, state notification message is used for the change for indicating the running status of input power.For example, state notification message can Only indicate that the running status of input power changes, so as to which running status determining device can be according to the operation before input power State determines the running status after its change, such as is changed into opening from closing or is changed into closing from unlatching.And for example, state notification message The change that the running status of input power occurs can be directly indicated, such as is changed into opening from closing or is changed into closing from unlatching.

When the running status of input power changes, corresponding state notification message, which can be triggered, to be sent to Entreat control device；Correspondingly, central control equipment can receive the state notification message, and by running status determining device according to The state notification message determines the current operating conditions of input power.

2) running status determining device detects the current operating conditions of each road input power.

Here, running status determining device can determine the current fortune of each road input power by way of active detecting Row state.

Wherein, running status determining device can intermittently detect the current operating conditions of each road input power, such as Periodically every detection in 5 seconds once, or randomly detected.Preferably, to realize the high stability of power system, transport Row state determination device should detect the current operating conditions of each road input power in real time, that is, running status determining device should be with Shorter time interval always detects the current operating conditions of each road input power with not resting.

Preferably, running status determining device can integrate with connected state determining device 11.

Here, current operating conditions of the connected state determining device 11 according to power system Zhong Ge roads input power, in real time Calculate to determine the corresponding target connected state of power system.

Or connected state determining device 11 can run shape previously according to the possibility of power system Zhong Ge roads input power State, determine the corresponding target connected state of power system, and each corresponding relation determined by preservation.Specific implementation will be rear It is described in detail in continuous content.Accordingly, connected state determining device 11 can be according to the current of power system Zhong Ge roads input power Running status, above-mentioned preserved corresponding relation is inquired about, determines the corresponding target connected state of power system.Specifically, per road The running status of input power can be to be turned on and off, and have a variety of groups so as to the possibility running status of each road input power Close, every group of combination corresponds to the target connected state of one group of power system.Every group of target connected state includes one or more Target connected state, this depends on the different purposes of system.

For example, the corresponding relation between the possibility running status of each road input power and the target connected state of power system Specifically as shown in Table 1 above.

Multiple targets that a kind of combination for the possibility running status of each road input power corresponds to power system connect Any of which target connected state can be defined as target connected state by the situation of state, connected state determining device 11, And specific determination mode can have a variety of, such as determine or determine at random according to predetermined set.

1) can connected state.

Specifically, when the running status of each input power is determined, it is understood that there may be one of corresponding power system or It is multiple can connected state.Fig. 1 is referred to for example, coordinating, when mains supply N1, N2 are closed, and bavin energy source G1, G2 are opened, can be connected Logical state includes following 3 kinds：A) powered for I sections by G1, powered by G2 for II sections；B) it is that I sections and II sections are powered by G1；C) by G2 Powered for I sections and II sections.Accordingly, connected state determining device 11 can by any of which can connected state be defined as target connect Logical state, and specific determination mode can include a variety of, such as determine or determine at random according to predetermined set.

2) best connectivity state.

Based on single standard, when can not uniquely determine best connectivity state, connected state determining device 11 can use Multiple standards are screened, until only remaining one kind can connected state, and as unique best connectivity state.

Connected state determining device 11 can be according to corresponding to following two steps of i, ii determine power system target connect Logical state：

If at least the current operating conditions of primary power cource is open all the way in i power systems, connected state determining device 11 determine the corresponding target connected state of power system according to the primary power cource wherein opened.

Here, if only for the current operating conditions of primary power cource to open, connected state determines dress all the way in power system Putting 11 can determine that the road primary power cource is whole power system power supply, that is, the target connected state of power system is " by opening The primary power cource power supply opened ".

If the current operating conditions of multichannel primary power cource are to open in power system, connected state determining device 11 can To determine all or part of primary power cource in these primary power cources opened as whole power system power supply.This it is understood that For connected state determining device 11 can select one kind to be used as target connected state from multiple in connected state.Further, Connected state determining device 11 can also introduce other standards, and such as each bus section, busbar section is respectively connected to input power, most two all the way Bus section, busbar section shares input power etc. all the way, and a best connectivity state can be uniquely determined in connected state from multiple.

Here, if at least to open, connected state determines the current operating conditions of primary power cource all the way in power system Device 11 can determine the corresponding target connected state of power system according only to the primary power cource opened in power system, connection State determination device 11 need not pay close attention to the current operating conditions of stand-by power supply, and target connected state is determined so as on the one hand improve The speed of state, lifting calculate the efficiency of processing；On the other hand the stability of power system can be lifted, that is, now standby electricity The change of source running status does not interfere with the target connected state of power system.

If the current operating conditions of whole primary power cources are to close in ii power systems, connected state determining device 11 The corresponding target connected state of power system is determined according to the current operating conditions of each stand-by power supply.

Here, if only for the current operating conditions of stand-by power supply to open, connected state determines dress all the way in power system Putting 11 can determine that the road stand-by power supply is this power system power supply, that is, the target connected state of power system is " by opening The stand-by power supply power supply opened ".

If the current operating conditions of multichannel stand-by power supply are to open in power system, connected state determining device 11 can To determine all or part of stand-by power supply in these stand-by power supplies opened as whole power system power supply.This it is understood that For connected state determining device 11 can select one kind to be used as target connected state from a variety of in connected state.Further, Connected state determining device 11 can also introduce other standards, and such as each bus section, busbar section is respectively connected to input power, most two all the way Bus section, busbar section shares input power etc. all the way, and a best connectivity state can be uniquely determined in connected state from multiple.

When power system includes multiple bus section, busbar sections, connected state determining device 11 is also according to above-mentioned i and ii two Step, when there is primary power cource unlatching, each bus section, busbar section is powered by the primary power cource opened, opened when without primary power cource When, each bus section, busbar section is powered by the stand-by power supply opened.

Preferably, control device 10 can also include the pre-configured device of a connected state (not shown in Fig. 5), connected state Pre-configured device can be according to the possibility running status of each road input power, and predefining power system, all targets connect accordingly Logical state.

The pre-configured device of connected state can combine the number of power sources of input power in power system, determine each road input electricity The possibility running status in source.

Those skilled in the art will be understood that the situation for including more multichannel input power for power system, connected state The pre-configured device of state can also determine the possibility running status of corresponding each road input power.

Here, possibility running status of the pre-configured device of connected state according to each road input power, predefines power train The mode of the corresponding all target connected states of system includes but is not limited to following 4 kinds：

1) the pre-configured device of connected state predefines power system according only to the possibility running status of each road input power Corresponding all target connected states.

This mode is at least applied to following power system architectures：

For the sake of simple declaration, illustrated so that two-way input power is bus section, busbar section power supply as an example, connected state is pre-configured Device can all target connected states be as shown in Table 2 above accordingly with predetermined power system.

2) the pre-configured device of connected state is according to the possibility running status of each road input power, with reference between each bus section, busbar section Power supply link information, predefine power system all target connected states accordingly.

This mode is at least applied to following power system architectures：

The pre-configured device of connected state can with predetermined power system accordingly all target connected states as more than Shown in table 3.

2.2) without contact between two bus section, busbar sections.

Here, independently come by respective defeated for the situation without contact, the two bus section, busbar sections between two bus section, busbar sections Enter power supply to be powered, so as to which the pre-configured device of connected state can be respectively that each bus section, busbar section determines its corresponding all mesh Mark connected state.

Without contact between two bus section, busbar sections, one of bus section, busbar section includes illustrating exemplified by two-way input power, even The confirmable all target connected states of the logical pre-configured device of state are identical with the target connected state shown in upper table 2, because This is repeated no more, and is incorporated herein by reference.

Accordingly, the pre-configured device of connected state can be according to the possibility running status of each road input power, with reference to each bus Power supply link information between section, predefine power system all target connected states accordingly.

3) the pre-configured device of connected state is according to the possibility running status of each road input power, with reference to each road input power Power supply information on load, predefine power system all target connected states accordingly.

This mode is at least applied to following power system architectures：

Here, for the sake of simple declaration, only there is input power all the way, input all the way with 3 bus section, busbar sections, each bus section, busbar section Power supply can be to be illustrated exemplified by two bus section, busbar sections are powered, and the pre-configured device of connected state can be with predetermined power system phase All target connected states answered are as shown in upper table 4.

4) the pre-configured device of connected state is according to the possibility running status of each road input power, with reference between each bus section, busbar section The power supply information on load of power supply link information and each road input power, predefine power system all target connections accordingly State.

In summary, the pre-configured device of connected state can be according to the possibility running status of each road input power, in advance really Determine power system all target connected states accordingly.

Here, the target closed state for only indicating each switch element indirectly with target connected state above is illustrated, even The logical pre-configured device of state can also determine directly to indicate the target connected state of the target closed state of each switch element.Example Such as, the target connection for the target closed state for indicating each switch element indirectly can be presented in the pre-configured device of connected state to user State, so as to by being interacted with user, input the target closed state of corresponding each switch element by user.

Current operating conditions in connected state determining device 11 according to power system Zhong Ge roads input power, determine electric power After the corresponding target connected state of system, if the current closure state of each switch element in power system connects with target The target closed state of each switch element corresponding to state is not inconsistent, and switch element adjusting apparatus 12 is adjusted according to target closed state Respective switch unit in whole power system.

Here, if target connected state directly indicates the target closed state of each switch element, switch element adjustment dress Put 12 target closed states that can directly determine each switch element.

If target connected state indicates the target closed state of each switch element indirectly, switch element adjusting apparatus 12 can To inquire about target connected state and the corresponding relation of the target closed state of each switch element, so that it is determined that the mesh of each switch element Mark closure state.

Preferably, control device 10 can also include a stand-by power supply trigger device (not shown in Fig. 5), if all defeated The current operating conditions for entering power supply are to close, and stand-by power supply trigger device triggers a stand-by power supply enabling signal, to start extremely Few stand-by power supply all the way.

Here, stand-by power supply is usually bavin energy source.

Here, if the current operating conditions of all input powers are to close in power system, stand-by power supply triggering fills Stand-by power supply all the way can be started by putting, and the stand-by power supply can also be the power system power supply, so as to meet the use of power system Electric demand.

It should be noted that the present invention can be carried out in the assembly of software and/or software and hardware, for example, can adopt With application specific integrated circuit (ASIC), general purpose computer or any other realized similar to hardware device.In one embodiment In, software program of the invention can realize steps described above or function by computing device.Similarly, it is of the invention Software program (including related data structure) can be stored in computer readable recording medium storing program for performing, for example, RAM memory, Magnetically or optically driver or floppy disc and similar devices.In addition, some steps or function of the present invention can employ hardware to realize, example Such as, coordinate as with processor so as to perform the circuit of each step or function.

In addition, the part of the present invention can be applied to computer program product, such as computer program instructions, when its quilt When computer performs, by the operation of the computer, the method according to the invention and/or technical scheme can be called or provided. And the programmed instruction of the method for the present invention is called, it is possibly stored in fixed or moveable recording medium, and/or pass through Broadcast or the data flow in other signal bearing medias and be transmitted, and/or be stored according to described program instruction operation In the working storage of computer equipment.Here, including a device according to one embodiment of present invention, the device includes using Memory in storage computer program instructions and processor for execute program instructions, wherein, when the computer program refers to When order is by the computing device, method and/or skill of the plant running based on foregoing multiple embodiments according to the present invention are triggered Art scheme.

It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.This Outside, it is clear that the word of " comprising " one is not excluded for other units or step, and odd number is not excluded for plural number.That is stated in system claims is multiple Unit or device can also be realized by a unit or device by software or hardware.The first, the second grade word is used for table Show title, and be not offered as any specific order.

Claims

1. a kind of method for adjusting the closure state of switch element in power system, wherein, the power system has extremely Few two-way input power, the power system include at least two bus section, busbar sections；

Wherein, this method includes：

- according to the possibility running status of wherein each road input power, it is true in advance with reference to the power supply link information between each bus section, busbar section Determine the power system all target connected states accordingly；

Wherein, this method also includes：

- according to the current operating conditions of each road input power, determine the corresponding target connected state of the power system, institute Stating current operating conditions includes being turned on and off；

If the current closure state of each switch element in the-power system with it is each corresponding to the target connected state The target closed state of switch element is not inconsistent, and the respective switch list in the power system is adjusted according to the target closed state Member.

2. according to the method for claim 1, wherein, the target connected state includes any one of following：

- can connected state；

- best connectivity state.

3. according to the method for claim 1, wherein, at least two-way input power include at least all the way primary power cource and At least stand-by power supply all the way；

Wherein, described the step of determining the power system corresponding target connected state, specifically includes：

- if wherein at least the current operating conditions of primary power cource is open all the way, according to the primary power cource wherein opened come really The fixed corresponding target connected state of power system；

If the current operating conditions of-wherein whole primary power cources are to close, according to the current operation shape of the stand-by power supply State determines the corresponding target connected state of the power system.

4. according to the method for claim 3, wherein, at least two-way input power includes multigroup input power, every group Input power includes primary power cource all the way and at least stand-by power supply, the power system include multiple bus section, busbar sections all the way；

The corresponding bus section, busbar section of every group of input power, every group of input power Zhong Ge roads input power is respectively by a switch element control Make to connect a bus section, busbar section or disconnect.

5. according to the method for claim 1, wherein, this method also includes：

- determine the current operating conditions of each road input power.

6. according to the method for claim 1, wherein, the power supply link information between each bus section, busbar section includes following any ：

There is contact to connect by single busbar or more buses between-two bus section, busbar sections；

Without contact between-two bus section, busbar sections.

7. according to the method for claim 1, wherein, described the step of predefining all target connected states, enters one Step includes：

- according to the possibility running status of each road input power, with reference to the power supply information on load of each road input power, in advance First determine the power system all target connected states accordingly.

8. according to the method for claim 1, wherein, this method also includes：

If the current operating conditions of-all input powers are to close, a stand-by power supply enabling signal is triggered, to start at least Stand-by power supply all the way.

9. a kind of device for being used to adjust the closure state of switch element in power system, wherein, the power system has extremely Few two-way input power, the power system include at least two bus section, busbar sections；

Wherein, the device includes：

It is true in advance with reference to the power supply link information between each bus section, busbar section for the possibility running status according to each road input power The device of the fixed power system all target connected states accordingly；

For the current operating conditions according to wherein each road input power, the corresponding target connected state of the power system is determined Device, the current operating conditions include be turned on and off；

If for corresponding to the current closure state of each switch element in the power system and the target connected state The target closed state of each switch element be not inconsistent, corresponding being opened according to what the target closed state adjusted in the power system Close the device of unit.

10. device according to claim 9, wherein, the target connected state includes any one of following：

- can connected state；

- best connectivity state.

11. device according to claim 9, wherein, at least two-way input power includes at least primary power cource all the way At least stand-by power supply all the way；

Wherein, the device for determining the corresponding target connected state of power system is specifically used for：

12. device according to claim 11, wherein, at least two-way input power includes multigroup input power, often Group input power includes primary power cource all the way and at least stand-by power supply, the power system include multiple bus section, busbar sections all the way；

13. device according to claim 9, wherein, the device also includes：

For the device for the current operating conditions for determining each road input power.

14. device according to claim 9, wherein, the power supply link information between each bus section, busbar section includes following One：

Without contact between-two bus section, busbar sections.

15. device according to claim 9, wherein, the device for predefining all target connected states enters One step is used for：

16. device according to claim 9, wherein, the device also includes：

If the current operating conditions for all input powers are to close, the device of a stand-by power supply enabling signal is triggered, To start at least stand-by power supply all the way.