CN105071382B

CN105071382B - Off-load method and system based on dispatch automated system

Info

Publication number: CN105071382B
Application number: CN201510472190.1A
Authority: CN
Inventors: 魏宏; 陈兴华; 吴国炳; 李力; 袁泉; 郑丹; 李新超; 陈锦昌; 杨文佳; 钱峰; 辛拓
Original assignee: Electric Power Dispatch Control Center of Guangdong Power Grid Co Ltd
Current assignee: Electric Power Dispatch Control Center of Guangdong Power Grid Co Ltd
Priority date: 2015-08-04
Filing date: 2015-08-04
Publication date: 2017-10-20
Anticipated expiration: 2035-08-04
Also published as: CN105071382A

Abstract

The present invention relates to a kind of off-load method and system based on dispatch automated system, wherein method includes：Transformer station where transformer station, the stabilization control device subordinate where obtaining stabilization control device using dispatch automated system respectively perform station and its real not time circuit information in the paths that are all electrically connected each other, and by the real not time circuit information transfer to the stabilization control device；According to the real not time circuit information, the affiliated electrical areas of transformer station and its mutual overlapping relation where the affiliated electrical areas of transformer station, the stabilization control device subordinate respectively perform station where determining the stabilization control device；And according to the overlapping relation, adjust the off-load strategy of the stabilization control device.The technology of the present invention, can be adjusted from higher voltage order one grade, a bigger supply district to the load object in a power supply zone.

Description

Off-load method and system based on dispatch automated system

Technical field

It is more particularly to a kind of based on dispatch automated system the present invention relates to power system and technical field of automation Off-load method and system.

Background technology

In power system actual motion, major network typically takes switched-mode power supply to run, each power supply zone it is general by one or Several voltage levels transformer stations and several low-voltage-grade transformer substations are electrically connected composition.For different power supply zones Speech, voltage levels transformer station is electrically connected mode in the presence of different from several low-voltage-grade transformer substations, typically there is following two Plant typical structure：One kind is operation of shaking hands, and another is Electromagnetic coupling.

When bus, interior bus of standing keep shaking hands when running between voltage levels Substation Station in power supply zone, then power supply divides Transformer station is in same electrical areas with each main transformer of the transformer station, bus where each execution station in area, now at this The main transformer of stabilization control device in transformer station crosses off-load strategy and cuts off any one load for performing station, can help to solution Certainly corresponding safety and stability problem.

But, under the conditions of outlet maintenance or failure, middle substation power loss etc., voltage levels power transformation in power supply zone Bus, interior bus of standing can not keep shaking hands when running between station, transformer station where the execution station in power supply zone and height electricity Each main transformer, bus are not at same electrical areas in pressure grade transformer substation, now steady in voltage levels transformer station The execution station load of same electrical areas can only then be cut off by determining the main transformer excessively stream off-load strategy of control device, just contribute to solution Certainly corresponding safety and stability problem, if the execution station load of the non-same electrical areas of excision, to solving corresponding safety and stability Problem is invalid, belongs to excision load by mistake.

When bus, interior bus of standing can not keep shaking hands operation, it is necessary to adjust between voltage levels Substation Station in power supply zone The whole related excision round definite value for performing station can be adapted to.Existing way is to perform station using the peace based on GOOSE information The off-load method of full-automatic device, the pass that is electrically connected of this method substation bus bar where by differentiating load object and performing station System, adjustment performs the load object at station, the inside of transformer station where adjusting range is limited to each execution station.Therefore, adjusting range It is small, it is impossible to adjust the load object in a big power supply zone, i.e., it can not adjust including transformer station where stabilization control device Multiple voltage levels transformer stations inside and multiple low-voltage-grade transformer substation institutes including transformer station where each execution station The load object in a relatively large power supply zone constituted.

The content of the invention

Based on this, it is necessary to include change where stabilization control device in view of the above-mentioned problems, providing one kind and can adjust one Multiple voltage levels transformer stations including power station and multiple low-voltage-grade power transformations including transformer station where each execution station The off-load method and system based on dispatch automated system of load object in the power supply zone stood.

A kind of off-load method based on dispatch automated system, comprises the following steps：

Transformer station, the stabilization control device subordinate respectively hold where obtaining stabilization control device using dispatch automated system Transformer station where row station and its real not time circuit information in the path that is all electrically connected each other, and the real not time circuit information is passed Transport to the stabilization control device；

It is the affiliated electrical areas of transformer station where determining the stabilization control device, described according to the real not time circuit information The affiliated electrical areas of transformer station and its mutual overlapping relation where stabilization control device subordinate respectively performs station；And according to described Overlapping relation, adjusts the off-load strategy of the stabilization control device.

A kind of unloading system based on dispatch automated system, including：

Acquisition module is transformer station where for obtaining stabilization control device using the dispatch automated system, described steady Determine transformer station where control device subordinate respectively performs station and its real not time circuit information in the path that is all electrically connected each other, and will The real not time circuit information transfer is to the stabilization control device；

Determining module, for according to the real not time circuit information, determining belonging to the stabilization control device place transformer station The affiliated electrical areas of transformer station where electrical areas, the stabilization control device subordinate respectively perform station and its mutual intersecting pass System；

Adjusting module, for according to the overlapping relation, adjusting the off-load strategy of the stabilization control device.

The above-mentioned off-load method and system based on dispatch automated system, can obtain stable by dispatch automated system Transformer station where transformer station, the stabilization control device subordinate respectively perform station where control device and its each other whole electrically phases Transformer station where the real not time circuit information of access path, and then each execution station of determination is electric with transformer station where stabilization control device Annexation, and according to the electric connecting relation, adjust the off-load strategy of the stabilization control device.Pass through the side of the present invention Method, can be adjusted from higher voltage order one grade, a bigger supply district to the load object in a power supply zone.

Brief description of the drawings

Fig. 1 is the off-load method flow diagram based on dispatch automated system of the invention；

Fig. 2 is the main electrical scheme schematic diagram of typical power supply area voltage levels transformer station under 500kV major networks；

Fig. 3 is the first typical structure power supply area schematic diagram under 500kV major networks；

Fig. 4 is another typical structure power supply area schematic diagram under 500kV major networks；

The unloading system structural representation based on dispatch automated system of Fig. 5 present invention.

Embodiment

Below in conjunction with the accompanying drawings to the specific embodiment party of the off-load method and system based on dispatch automated system of the invention Formula is described in detail.

With reference to shown in Fig. 1, Fig. 1 for the present invention the off-load method flow diagram based on dispatch automated system, it is including as follows Step：

Step S10, transformer station, the stabilization control device where obtaining stabilization control device using dispatch automated system Transformer station where subordinate respectively performs station and its real not time circuit information in paths of being all electrically connected each other, and by the real-time electricity Road information transfer is to the stabilization control device；

In this step, the present invention program can be implemented by dispatch automated system (EMS system), EMS system is made To use one of most extensive, with fastest developing speed technical field in current power system, with a variety of functions：Firstth, power train System data acquisition and monitoring (SCADA system)：Possess power system of data acquisition function, data processing function, computing function, electricity Net control function, the electric informations such as remote measurement, the remote signalling of the whole plant stands of power system can be gathered in real time；Second, power system is high Level application software (PAS systems)：Possess the functions such as network modelling, Network topology, state estimation, collection can be obtained Power plant and substation's information, the information being manually entered etc. calculate in real time analyzing to be believed there is provided reliable, accurate power system real not time circuit Breath.In addition, can also further carry out the analysis of plant stand bus and grid analysis, there is provided path and its connected state of being electrically connected The real-time analysis information of state；3rd, by communication protocol (such as 103 stipulations), EMS can realize that real time information is handed over automatics Mutually.Therefore, the circuit real time information and analytic function service that are provided using dispatch automated system, are changed by the upgrading of scalp Make, the automatic adaptation to power supply zone changes of operating modes can be just realized in the stabilization control device of conventional substation, it is to avoid Great amount of investment and construction, it also avoid the risk of artificial incorrect operation.

In one embodiment, described real not time circuit information can include：

The folding letter of the on high-tension side switch of main transformer of transformer substation, the first disconnecting link, the second disconnecting link where stabilization control device Breath；Wherein, first disconnecting link is described to connect the disconnecting link between the main transformer high side switch and the bus of high pressure first Second disconnecting link is the disconnecting link between the connection main transformer high side switch and the bus of high pressure second；

In one embodiment, transformer station where stabilization control device is articulated in the main transformer pressure of the first bus or the second bus The switch of device medium voltage side, the first disconnecting link, the second disconnecting link, the folding information of the 3rd disconnecting link；Wherein, first disconnecting link is connection institute The disconnecting link between the first bus of main transformer medium voltage side switch and middle pressure is stated, second disconnecting link is in the connection main transformer Side switch and the middle disconnecting link pressed between the second bus are pressed, the 3rd disconnecting link is the connection main transformer medium voltage side switch and master Disconnecting link between transformer.It is articulated in the switch of the main transformer medium voltage side of the 5th bus or the 6th bus, the first disconnecting link, second The folding information of disconnecting link, the 3rd disconnecting link；Wherein, first disconnecting link is connects main transformer medium voltage side switch and middle pressure the Disconnecting link between five buses, second disconnecting link is switched between the 6th bus of middle pressure to connect the main transformer medium voltage side Disconnecting link, the 3rd disconnecting link is the disconnecting link between the connection main transformer medium voltage side switch and main transformer；

Transformer station's the first bus of medium voltage side where stabilization control device and the bus connection switch between the second bus, the first disconnecting link, The folding information of second disconnecting link；Wherein, first disconnecting link is the knife between the connection bus connection switch and the bus of middle pressure first Lock, second disconnecting link is the disconnecting link between the connection bus connection switch and the bus of middle pressure second.The bus of medium voltage side the 5th and Bus connection switch, the first disconnecting link, the folding information of the second disconnecting link between six buses；Wherein, first disconnecting link is the connection mother Disconnecting link between connection switch and the 5th bus of middle pressure, second disconnecting link for connect the bus connection switch and the 6th bus of middle pressure it Between disconnecting link.Bus connection switch, the first disconnecting link, the folding information of the second disconnecting link between the bus of medium voltage side first and the 5th bus；Its In, first disconnecting link is connects the disconnecting link between the bus connection switch and the bus of middle pressure first, and second disconnecting link is connection Disconnecting link between the bus connection switch and the bus of middle pressure the 5th.Bus connection switch between the bus of medium voltage side second and the 6th bus, The folding information of one disconnecting link, the second disconnecting link；Wherein, first disconnecting link for connect the bus connection switch and the second bus of middle pressure it Between disconnecting link, second disconnecting link is connects the disconnecting link between the bus connection switch and the bus of middle pressure the 6th；

In one embodiment, transformer station where stabilization control device is mounted on the first bus or the correlation of the second bus goes out The switch of line, the first disconnecting link, the second disconnecting link, the folding information of the 3rd disconnecting link；Wherein, first disconnecting link is the connection outlet Disconnecting link between the first bus of switch and middle pressure, second disconnecting link is between the connection outlet switch and the bus of middle pressure second Disconnecting link, the 3rd disconnecting link is connects the disconnecting link between the outlet switch and outlet.It is mounted on the 5th bus or the 6th mother The switch of the related outlet of line, the first disconnecting link, the second disconnecting link, the folding information of the 3rd disconnecting link；Wherein, first disconnecting link is company Connect the disconnecting link between the outlet switch and the bus of middle pressure the 5th, second disconnecting link is connects the outlet switch and middle pressure the Disconnecting link between six buses, the 3rd disconnecting link is the disconnecting link between the connection outlet switch and outlet.

Between transformer station where transformer station to the stabilization control device where the stabilization control device subordinate respectively performs station Whole be electrically connected path；

The folding letter of the bus connection switch and its first disconnecting link of related transformer station, the second disconnecting link on the path that is electrically connected Breath；Wherein, first disconnecting link is connects the disconnecting link between the bus connection switch and the bus of high pressure first, and second disconnecting link is Connect the disconnecting link between the bus connection switch and the bus of high pressure second；

The switch and its first disconnecting link of the related outlet of related transformer station on the path that is electrically connected, the second disconnecting link, the The folding information of three disconnecting links；Wherein, first disconnecting link is the disconnecting link between the connection outlet switch and the bus of high pressure first, Second disconnecting link is connects the disconnecting link between the outlet switch and the bus of high pressure second, and the 3rd disconnecting link is described for connection Disconnecting link between outlet switch and outlet.

Step S20, according to the real not time circuit information, electric area belonging to transformer station where determining the stabilization control device The affiliated electrical areas of transformer station and its mutual overlapping relation where domain, the stabilization control device subordinate respectively perform station；

In one embodiment, according to the real not time circuit information, belonging to transformer station where determining stabilization control device The step of electrical areas, it can include：

The electrical areas of the bus of transformer station where determining stabilization control device：

The affiliated electrical areas mark of the bus of middle pressure first of transformer station where stabilization control device is set in addition to 0 Any integer value；

The bus connection switch and first, second disconnecting link of first, second bus are pressed in judgement whether simultaneously in "on" position,

If so, then the affiliated electrical areas mark of the second bus of middle pressure is set to the mark of the affiliated electrical areas of the first bus；

If it is not, then the second bus of middle pressure affiliated electrical areas mark is set to any number in addition to 0, and with it is first female The electrical areas mark of line now is differed；

The bus connection switch and first, second disconnecting link of the first, the 5th bus are pressed in judgement whether simultaneously in "on" position,

If so, then the affiliated electrical areas mark of the 5th bus of middle pressure is set to the mark of the affiliated electrical areas of the first bus；

If it is not, then the 5th bus of middle pressure affiliated electrical areas mark is set to any number in addition to 0, and with it is first female The electrical areas mark of line, the second bus now is differed；

The bus connection switch and first, second disconnecting link of the five, the 6th buses are pressed in judgement whether simultaneously in "on" position,

If so, then the affiliated electrical areas mark of the 6th bus of middle pressure is set to the mark of the 5th affiliated electrical areas of bus；

If it is not, then the 6th bus of middle pressure affiliated electrical areas mark is set to any number in addition to 0, and with it is first female The electrical areas mark of line, the second bus, the 5th bus now is differed；

The bus connection switch and first, second disconnecting link of the second, the 6th bus are pressed in judgement whether simultaneously in "on" position,

If so, then the affiliated electrical areas mark of the 6th bus of middle pressure is set to the mark of the affiliated electrical areas of the second bus；

If it is not, then the affiliated electrical areas mark of the 6th bus of middle pressure keeps constant；

The electrical areas of the main transformer of transformer station where determining stabilization control device：

Whether the main transformer of transformer station where judging stabilization control device is in running status,

If so, and the disconnecting link of medium voltage side first is in "on" position, then the main transformer affiliated electrical areas mark is set to The first disconnecting link of middle pressure joins the mark of the affiliated electrical areas of bus；If the disconnecting link of medium voltage side first is in gate-dividing state, the second disconnecting link In "on" position, then its affiliated electrical areas, which is identified, is set to the mark that the second disconnecting link of middle pressure joins the affiliated electrical areas of bus；

If it is not, then the affiliated electrical areas mark of the main transformer is set to numerical value 0.

Wherein, differentiate that main transformer is in running status, following condition should be met simultaneously：

Condition one：Main transformer high side switch state is in "on" position, meets one of following condition and is determined as completely Foot：

(1) switch and its first disconnecting link, the second disconnecting link are simultaneously in "on" position, at least one set of side switch and its first in Disconnecting link, the second disconnecting link are simultaneously in "on" position；

(2) this side switch and its disconnecting link (the first disconnecting link or the second disconnecting link) are while in "on" position.This described side is Transformer directly can be connected by the switch and its disconnecting link with high-voltage side bus；

Condition two：The disconnecting link of main transformer medium voltage side first or the second disconnecting link are in "on" position；

Condition three：Main transformer medium voltage side switch is in "on" position；

Condition four：The disconnecting link of main transformer medium voltage side the 3rd is in "on" position.

In one embodiment, according to the real not time circuit information, determine that stabilization control device subordinate respectively performs station place The step of electrical areas belonging to transformer station, it can include：

Judge that stabilization control device subordinate respectively performs station place transformer station between transformer station where the stabilization control device Whole be electrically connected the connectedness in each path that is electrically connected in path, and be electrically connected in path at least described in checking Bus connection switch and its first, second disconnecting link in one low-voltage-grade transformer substation are simultaneously in "on" position；

Extract transformer station where the stabilization control device that some paths that are electrically connected in electrical communication state are connected Bus electrical areas；

It is the electrical areas of the bus of transformer station to set each electrical areas performed belonging to the transformer station of station place；Wherein, institute State the stabilization control device institute that the bus of transformer station is connected for some paths that are electrically connected in electrical communication state In the bus of transformer station.

In one embodiment, according to where the judgement stabilization control device subordinate respectively performs station transformer station to described steady Determine the whole between transformer station where control device to be electrically connected the connective step in each path that is electrically connected in path, can With including：

Extract it is described be electrically connected in path the switch of the related transformer station's correlation outlet in each path that is electrically connected and its First disconnecting link, the second disconnecting link, the bus connection switch and its first disconnecting link, the second knife of the folding information of the 3rd disconnecting link and related transformer station The folding information of lock.Wherein, the related transformer station includes transformer station where stabilization control device subordinate execution station, described Transformer station where stabilization control device, and the middle transformer station that each path that is electrically connected is connected；

According to the folding information, the connectedness in each path that is electrically connected is judged.

Further, according to the folding information, judging the connective step in each path that is electrically connected can wrap Include：

The connectivity of adjacent Liang Zuo transformer stations line related on each path that is electrically connected is extracted,

The connectivity of circuit described in any bar is：By this side the first disconnecting link information of circuit and this disconnecting link of side second of circuit Information is added, and is multiplied by this side switching information of circuit and circuit this disconnecting link information of side the 3rd；By circuit offside the first disconnecting link information It is added with circuit offside the second disconnecting link information, and is multiplied by circuit offside switching information and the disconnecting link information of circuit offside the 3rd, it is above-mentioned Value obtained by two multiplications.The connectivity of whole circuits is added, adjacent two changes on the path that is electrically connected are obtained The connectivity of power station line related；

To be electrically connected in path, all the connectivity of adjacent Liang Zuo transformer stations is multiplied, and obtains the road that is electrically connected The connectivity in footpath；

If the connectivity in the path that is electrically connected is more than 0, the path that is electrically connected is in electrical communication state.

Step S30, according to the overlapping relation, adjusts the off-load strategy of the stabilization control device.

In one embodiment, according to the overlapping relation, the step of the off-load strategy of the stabilization control device is adjusted, It can include：

If the affiliated electrical areas of the main transformer of the transformer station is 0, the locking main transformer excessively stream off-load strategy；

If the affiliated electrical areas of the main transformer of the transformer station not be 0, adjust excision load object only include with The main transformer electrical areas has the load at the execution station of common factor.

In order to become apparent from the beneficial effect of technical scheme, two are illustrated below in conjunction with the accompanying drawings based on the present invention The application example of technical scheme.

Example one

When being run when keeping shaking hands between the bus in power supply zone, illustrated by taking Fig. 2, Fig. 3 as an example, wherein, Fig. 2 is The main electrical scheme schematic diagram of typical power supply zone voltage levels transformer station under 500kV major networks, Fig. 3 is the first under 500kV major networks Typical structure power supply zone schematic diagram.Under typical set-up, the device that the transformer station is responsible for implementing stability contorting is 500kV safety Stabilization control device, the off-load method example based on dispatch automated system is specific as follows：

Step S101：500kV safety and stability control devices obtain itself place 500kV power transformation from dispatch automated system Stand, subordinate respectively performs station place 220kV transformer stations and its real not time circuit information in the paths that are all electrically connected each other.

According to the real not time circuit information, 500kV transformer stations where therefrom extracting 500kV safety and stability control devices itself The on high-tension side switch of main transformer, the folding information of the first disconnecting link, the second disconnecting link, are articulated in the master of the first bus or the second bus The switch of transformer medium voltage side, the first disconnecting link, the second disconnecting link, the folding information of the 3rd disconnecting link, are articulated in the 5th bus or the 6th The switch of the main transformer medium voltage side of bus, the first disconnecting link, the second disconnecting link, the folding information of the 3rd disconnecting link, medium voltage side first are female Bus connection switch, the first disconnecting link, the folding information of the second disconnecting link, the bus of medium voltage side the 5th and the 6th bus between line and the second bus Between bus connection switch, the first disconnecting link, the folding information of the second disconnecting link, the mother between the bus of medium voltage side first and the 5th bus opens Pass, the folding information of the first disconnecting link, the second disconnecting link, bus connection switch, the first disconnecting link between the bus of medium voltage side second and the 6th bus, The folding information of second disconnecting link, is mounted on the switches of the related 220kV outlets of the first bus or the second bus, the first disconnecting link, The folding information of two disconnecting links, the 3rd disconnecting link, be mounted on the related 220kV outlets of the 5th bus or the 6th bus switch, first Disconnecting link, the second disconnecting link, the folding information of the 3rd disconnecting link.

500kV transformer stations where 220kV transformer stations to 500kV safety and stability control devices itself where subordinate respectively performs station Between whole be electrically connected path；The bus connection switch and its first disconnecting link of correlation 220kV transformer stations on the path that is electrically connected, The folding information of second disconnecting link and the switch of correlation 220kV outlets and its first disconnecting link, the second disconnecting link, the folding of the 3rd disconnecting link Information.

Step S102：According to the real not time circuit information, each bar medium voltage side bus, each master in 500kV transformer stations are determined The respective affiliated electrical areas of 220kV transformer stations where transformer and each subordinate perform station, can specifically include：

Such as Fig. 2, the middle affiliated electrical areas mark of the bus of pressure first is set to numerical value 1.

For the bus connection switch and its first, second disconnecting link of first, second bus of middle pressure, closed due to being in when three is different Lock state, then it is middle to press the affiliated electrical areas mark of the second bus to be set to any number in addition to 0, and with the first bus now Electrical areas mark differ, i.e., non-1,2 might as well be taken.

For the bus connection switch and its first, second disconnecting link of the first, the 5th bus of middle pressure, closed due to being in when three is different Lock state, then the 5th bus of middle pressure affiliated electrical areas mark be set to any number in addition to 0, and with the first bus, the The electrical areas mark of two buses now is differed, i.e., and non-1 and non-2,5 might as well be taken.

For the bus connection switch and its first, second disconnecting link of the five, the 6th buses of middle pressure, because three is simultaneously in combined floodgate State, then it is middle to press the affiliated electrical areas of the 6th bus to identify the mark for being set to the 5th affiliated electrical areas of bus, i.e., 5.

For the bus connection switch and its first, second disconnecting link of the second, the 6th bus of middle pressure, because three is simultaneously in combined floodgate State, then the 6th bus of middle pressure affiliated electrical areas mark be set to the mark of the affiliated electrical areas of the second bus, i.e., 2, i.e., it is above-mentioned It is 2 to be designated 5 the 5th bus, the mark of electrical areas belonging to the 6th bus.

Such as Fig. 2, because the whole switches and its first disconnecting link, the second disconnecting link of main transformer one, two, three, four are located simultaneously In "on" position, the first disconnecting link or the second disconnecting link of the medium voltage side of whole transformers are in "on" position, whole main transformers Side switch is pressed to be in "on" position, whole disconnecting links of main transformer medium voltage side the 3rd are in "on" position, so whole main transformers In running status.

To main transformer one, the disconnecting link of medium voltage side first is in "on" position, then the electrical areas belonging to it is designated middle pressure The disconnecting link of side first joins the electrical areas mark of the mark of the affiliated electrical areas of bus, i.e. the first bus, i.e., 1；

To main transformer two, the disconnecting link of medium voltage side second is in "on" position, then the electrical areas belonging to it is designated middle pressure The disconnecting link of side second joins the electrical areas mark of the mark of the affiliated electrical areas of bus, i.e. the second bus, i.e., 2；

To main transformer three, the disconnecting link of medium voltage side first is in "on" position, then the electrical areas belonging to it is designated middle pressure The disconnecting link of side first joins the electrical areas mark of the mark of the affiliated electrical areas of bus, i.e. the 5th bus, i.e., 2；

To main transformer four, the disconnecting link of medium voltage side first is in "on" position, then the electrical areas belonging to it is designated middle pressure The disconnecting link of side second joins the electrical areas mark of the mark of the affiliated electrical areas of bus, i.e. the 6th bus, i.e., 2；

Such as Fig. 3,500kV GC stations safety and stability control device subordinate 5 performs station, and station place is performed for subordinate is each 220kV transformer stations, the method to set up of its affiliated electrical areas mark, can include as follows：

Might as well first set whole circuit L1, L2 ..., L14 be completely in running status, whole 220kV transformer stations 220kV bus connection switches and its first disconnecting link, the second disconnecting link three are simultaneously in "on" position；Except L1, L2, L13, L14 are real with Fig. 2 Outside border connection is defined, the first disconnecting link of the circuit both sides switch of remaining odd-numbered is at "on" position, the second disconnecting link In gate-dividing state, the first disconnecting link of the circuit both sides switch of even-numbered is in gate-dividing state, the second disconnecting link and is in "on" position.

Judge that 500kV GC stations safety and stability control device subordinate respectively performs station place 220kV transformer stations to itself place Whole between 500kV transformer stations is electrically connected the connectedness in each path that is electrically connected in path, and checks the electric phase Bus connection switch and its first, second disconnecting link in access path at least one low-voltage-grade transformer substation are simultaneously in combined floodgate shape State；

Exemplified by performing station 2, it is intuitively to illustrate above-mentioned differentiation process, according to sanctified by usage, makes the letter opened in folding information Breath value is 1, point the value of information be 0, then perform the whole that 2 place 220kV PH of station stand to 500kV GC transformer stations and be electrically connected road Footpath is three：

Path one：220kV PH stations->220kV BZ stations->500kV GC transformer stations；

Path two：220kV PH stations->220kV BZ stations->220kV JH stations->500kV GC transformer stations；

Path three：220kV PH stations->220kV ZX stations->220kV XL stations->500kV GC transformer stations；

According to the folding information, the connectedness in each path that is electrically connected is judged.With 220kV PH station->220kV Exemplified by BZ stations, the electrical connectivity information for the relation that is electrically connected between adjacent Liang Zuo transformer stations is：

R (220kV PH stations->220kV BZ stand)=R (L7 ∪ L8)=M1L7* (M11L7+M12L7) * M13L7*M2L7* (M21L7+M22L7)*M23L7+M1L8*(M11L8+M12L8)*M13L8*M2L8*(M21L8+M22L8)*M23L8；

Wherein, M1L7 is that this side switchs folding condition；M11L7 is this side the first disconnecting link folding condition；M12L7 is this side the Two disconnecting link folding conditions；M13L7 is this disconnecting link folding condition of side the 3rd；M2L7 is that offside switchs folding condition；M21L7 is offside First disconnecting link folding condition；M22L7 is offside the second disconnecting link folding condition；M23L7 is the disconnecting link folding condition of offside the 3rd；M1L8 Folding condition is switched for this side；M11L8 is this side the first disconnecting link folding condition；M12L8 is this side the second disconnecting link folding condition； M13L8 is this disconnecting link folding condition of side the 3rd；M2L8 is that offside switchs folding condition；M21L8 is offside the first disconnecting link folding shape State；M22L8 is offside the second disconnecting link folding condition；M23L8 is the disconnecting link folding condition of offside the 3rd.

Similarly, by all connectivity multiplications of adjacent Liang Zuo transformer stations in path one, electrically connecting for path one is obtained Connectivity information is：

R (path one)=R (220kV PH stations->220kV BZ stand) * R (220kV BZ stations->500kV GC transformer stations) =R (L7 ∪ L8) * R (L1 ∪ L2)={ M1L7* (M11L7+M12L7) * M13L7*M2L7* (M21L7+M22L7) * M23L7+ M1L8*(M11L8+M12L8)*M13L8*M2L8*(M21L8+M22L8)*M23L8}*{M1L1*(M11L1+M12L1)*M13L1* M2L1*(M21L1+M22L1)*M23L1+M1L2*(M11L2+M12L2)*M13L2*M2L2*(M21L2+M22L2)*M23L2}

={ 1* (1+0) * 1+1* (0+1) * 1 } * { 1* (1+0) * 1+1* (0+1) * 1 } * { 1* (1+0) * 1+1* (0+1) * 1 } * { 1* (1+0) * 1+1* (0+1) * 1 }=16>0, i.e. path one are in electrical communication state；

Wherein, M1L7 is that this side switchs folding condition；M11L7 is this side the first disconnecting link folding condition；M12L7 is this side the Two disconnecting link folding conditions；M13L7 is this disconnecting link folding condition of side the 3rd；M2L7 is that offside switchs folding condition；M21L7 is offside First disconnecting link folding condition；M22L7 is offside the second disconnecting link folding condition；M23L7 is the disconnecting link folding condition of offside the 3rd；M1L8 Folding condition is switched for this side；M11L8 is this side the first disconnecting link folding condition；M12L8 is this side the second disconnecting link folding condition； M13L8 is this disconnecting link folding condition of side the 3rd；M2L8 is that offside switchs folding condition；M21L8 is offside the first disconnecting link folding shape State；M22L8 is offside the second disconnecting link folding condition；M23L8 is the disconnecting link folding condition of offside the 3rd；M1L1 is that this side switchs folding State；M11L1 is this side the first disconnecting link folding condition；M12L1 is this side the second disconnecting link folding condition；M13L1 is this side the 3rd Disconnecting link folding condition；M2L1 is that offside switchs folding condition；M21L1 is offside the first disconnecting link folding condition；M22L1 is offside the Two disconnecting link folding conditions；M23L1 is the disconnecting link folding condition of offside the 3rd；M1L2 is that this side switchs folding condition；M11L2 is this side First disconnecting link folding condition；M12L2 is this side the second disconnecting link folding condition；M13L2 is this disconnecting link folding condition of side the 3rd；M2L2 Folding condition is switched for offside；M21L2 is offside the first disconnecting link folding condition；M22L2 is offside the second disconnecting link folding condition； M23L2 is the disconnecting link folding condition of offside the 3rd.

Similarly, R (path two)=R (220kV PH station->220kV BZ stand) * R (220kV BZ stations->220kV JH Stand) * R (220kV JH stations->500kV GC transformer stations)=2*2*2*2*2*2=64>0, i.e. path two are in electrical communication shape State；

R (path three)=R (220kV PH stations->220kV ZX stand) * R (220kV ZX stations->220kV XL stand) * R (220kV XL stations->500kV GC transformer stations)=2*2*2*2*2*2=64>0, i.e. path three are in electrical communication state；

220kV PH where performing station 2 are stood：Because path one (two) is in electrical communication state, and through checking path Bus connection switch and its first, second disconnecting link in one (two) in whole 220kV transformer stations are simultaneously in "on" position, then belonging to it Electrical areas identifies the mark for being set to the affiliated electrical areas of bus in the 500kV GC transformer stations that path one (two) is connected, and extracts The bus of bus the 5th, the electrical areas of the 6th bus are 2 in the 500kV GC transformer stations that path one (two) is connected, then belonging to it Electrical areas mark is set to 2；Because path three is in electrical communication state, and through checking whole 220kV transformer stations in path three Interior bus connection switch and its first, second disconnecting link are simultaneously in "on" position, then its affiliated electrical areas, which is identified, is set to path three The mark of the affiliated electrical areas of bus in the 500kV GC transformer stations connected, extracts the 500kV GC power transformations that path three is connected The electrical areas of the bus of bus first is 1 in standing, then its affiliated electrical areas mark is set to 1.To sum up All Paths, perform station 2 The 220kV PH at place stand, and its affiliated electrical areas is multiple to be designated 1,2, represents the station while belonging to electrical areas 1, electric area Domain 2；

Similarly obtain, the execution station that affiliated electrical areas mark is set to 1 has：Station 1 is performed, station 2 is performed, performs station 3, performs Stand 4, perform station 5；The execution station that affiliated electrical areas mark is set to 2 has：Perform station 1, perform station 2, perform station 3, perform station 4, Perform station 5；

Step S103：The affiliated electrical areas of 500kV GC transformer stations according to where the 500kV safety and stability control devices Overlapping relation between the affiliated electrical areas of 220kV transformer stations where respectively performing station with subordinate, adjustment 500kV security and stability control dresses The off-load strategy put is specifically included：

For the excessively stream off-load strategy of main transformer one, two, three, four, its load object for adjusting excision is only included electrically Area identification has the load at the execution station of common factor, that is, only includes electrical areas and be designated in 1 and many re-marks containing 1 execution station Load, such as perform station 1, perform station 2, perform station 3, perform station 4, perform station 5.

Example two

When being run when that can not keep shaking hands between the bus in power supply zone, illustrated by taking Fig. 2, Fig. 3 as an example, wherein, Fig. 2 For the main electrical scheme schematic diagram of typical power supply zone voltage levels transformer station under 500kV major networks, Fig. 3 is first under 500kV major networks Plant typical structure power supply zone schematic diagram.Under typical set-up, the device that the transformer station is responsible for implementing stability contorting is 500kV peaces Full stabilization control device, the security and stability control off-load method example based on dispatch automated system information is specific as follows：

Step S102：According to the real not time circuit information, each bar medium voltage side bus, each master in 500kV transformer stations are determined The respective affiliated electrical areas of 220kV transformer stations where transformer and each subordinate of device perform station arrangement, is specifically included：

To main transformer three, the disconnecting link of medium voltage side second is in "on" position, then the electrical areas belonging to it is designated middle pressure The disconnecting link of side second joins the electrical areas mark of the mark of the affiliated electrical areas of bus, i.e. the second bus, i.e., 2；

To main transformer two, the disconnecting link of medium voltage side first is in "on" position, then the electrical areas belonging to it is designated middle pressure The disconnecting link of side first joins the electrical areas mark of the mark of the affiliated electrical areas of bus, i.e. the 5th bus, i.e., 2；

Such as Fig. 3:, 500kV GC stations safety and stability control device subordinate 5 performs station, and subordinate's execution each for device is stood institute In 220kV transformer stations, the method to set up of its affiliated electrical areas mark can include as follows：

On the basis of example one, set up outlet L9, L10 be in inspecting state supplementary condition, i.e., L9, L10 switch and Its first disconnecting link, the second disconnecting link, the 3rd disconnecting link are in gate-dividing state, then can not keep fortune of shaking hands between the bus in power supply zone OK.

Still exemplified by performing station 2, it is intuitively to illustrate above-mentioned differentiation process, according to sanctified by usage, makes what is opened in folding information The value of information is 1, point the value of information be 0, then perform the whole that 2 place 220kV PH of station stand to 500kV GC transformer stations and be electrically connected Path is two：

According to the folding information, the connectedness for judging each path that is electrically connected is：

220kV PH where performing station 2 are stood：Because path one (two) is in electrical communication state, and through checking path Bus connection switch and its first, second disconnecting link in one (two) in whole 220kV transformer stations are simultaneously in "on" position, then belonging to it Electrical areas identifies the mark for being set to the affiliated electrical areas of bus in the 500kV GC transformer stations that path one (two) is connected, and extracts The bus of bus the 5th, the electrical areas of the 6th bus are 2 in the 500kV GC transformer stations that path one (two) is connected, then belonging to it Electrical areas mark is set to 2；

It is 220kV ZX stations to perform 3 place 220kV transformer stations of station, and it is electrically connected road to the whole of 500kV GC transformer stations Footpath is one：

Path one：220kV ZX stations->220kV XL stations->500kV GC transformer stations；

Then according to the folding information, the connectedness for judging each path that is electrically connected is：

R (path one)=R (220kV ZX stations->220kV XL stand) * R (220kVXL stations->500kV GC transformer stations)= R(L11∪L12)*R(L13∪L14)

={ M1L11* (M11L11+M12L11) * M13L11*M2L11* (M21L11+M22L11) * M23L11+M1L12* (M11L12+M12L12)*M13L12*M2L12*(M21L12+M22L12)*M23L12}*{M1L13*(M11L13+M12L13)* M13L13*M2L13*(M21L13+M22L13)*M23L13+M1L14*(M11L14+M12L14)*M13L14*M2L14* (M21L14+M22L14)*M23L14}

Wherein, this side of M1L11 switch folding condition；This side the first disconnecting link folding condition of M11L11；This side second of M12L11 Disconnecting link folding condition；This disconnecting link folding condition of side the 3rd of M13L11；M2L11 offsides switch folding condition；M21L11 offsides first Disconnecting link folding condition；M22L11 offsides the second disconnecting link folding condition；The disconnecting link folding condition of M23L11 offsides the 3rd；This side of M1L12 Switch folding condition；This side the first disconnecting link folding condition of M11L12；This side the second disconnecting link folding condition of M12L12；This side of M13L12 3rd disconnecting link folding condition；M2L12 offsides switch folding condition；M21L12 offsides the first disconnecting link folding condition；M22L12 offsides Second disconnecting link folding condition；The disconnecting link folding condition of M23L12 offsides the 3rd；This side of M1L13 switchs folding condition；This side of M11L13 First disconnecting link folding condition；This side the second disconnecting link folding condition of M12L13；This disconnecting link folding condition of side the 3rd of M13L13；M2L13 Offside switchs folding condition；M21L13 offsides the first disconnecting link folding condition；M22L13 offsides the second disconnecting link folding condition；M23L13 The disconnecting link folding condition of offside the 3rd；This side of M1L14 switchs folding condition；This side the first disconnecting link folding condition of M11L14；M12L14 This side the second disconnecting link folding condition；This disconnecting link folding condition of side the 3rd of M13L14；M2L14 offsides switch folding condition；M21L14 Offside the first disconnecting link folding condition；M22L14 offsides the second disconnecting link folding condition；The disconnecting link folding condition of M23L14 offsides the 3rd.

220kV ZX where performing station 3 are stood：Because path one is in electrical communication state, and in path all Bus connection switch and its first, second disconnecting link in 220kV transformer stations are in "on" position simultaneously, then its affiliated electrical areas mark It is set to the mark of the affiliated electrical areas of bus in the 500kV GC transformer stations that path one is connected, the 500kV that path one is connected The electrical areas of the bus of bus first is 1 in GC transformer stations, then its affiliated electrical areas mark is set to 1；

Similarly obtain, the execution station that affiliated electrical areas mark is set to 1 has：Perform station 3, perform station 5；Affiliated electrical areas The execution station that mark is set to 2 has：Station 1 is performed, station 2 is performed, performs station 4；

For the excessively stream off-load strategy of main transformer one, its load object for adjusting excision only includes electrical areas and is identified with The load at the execution station of common factor, that is, only include electrical areas and be designated the load stood in 1 and many re-marks containing 1 execution, such as Perform station 3, perform station 5.

For the excessively stream off-load strategy of main transformer two, three, four, its load object for adjusting excision only includes electrical areas The load at execution station occured simultaneously is identified with, that is, only includes electrical areas and is designated in 2 and many re-marks containing the negative of 2 execution station Lotus, such as performs station 1, performs station 2, performs station 4.

With reference to shown in Fig. 4, Fig. 4 is another typical structure power supply area schematic diagram under 500kV major networks, and power supply zone is by two Individual voltage levels transformer station is connected composition with six low-voltage-grade transformer substation electrical equipment.As illustrated, 500kV BL transformer stations The device for being responsible for implementing stability contorting is 500kV safety and stability control devices, its off-load side based on dispatch automated system Method is identical with the off-load method of the first typical structure power supply zone under 500kV major networks.

The technical scheme of summary embodiment, the off-load method based on dispatch automated system has following substantially excellent Point：

First, the adjust automatically of safety and stability control device off-load strategy can be realized, it is to avoid safety and stability control device The risk of load is cut off by mistake, effectively ensures the correctness and reliability of safety and stability control device strategy；

Second, can be fully by EMS systems by realizing real-time information interaction with dispatch automated system (EMS system) The multi-functional that system has in itself.EMS system can provide ifq circuit information, can also provide the result after differentiating；Enter one Step, can carrying out the analysis of plant stand bus and grid analysis, there is provided real-time point of be electrically connected path and its connected state Information is analysed, contributes to follow-up stabilization control device accurately and rapidly to generate off-load strategy；

3rd, can be from higher voltage order one grade, a bigger supply district to the load pair in a power supply zone As being adjusted.

With reference to shown in Fig. 5, Fig. 5 is the unloading system structural representation based on dispatch automated system of the present invention, can be with Including：

Acquisition module 10, transformer station, described where for obtaining stabilization control device using the dispatch automated system Transformer station where stabilization control device subordinate respectively performs station and its real not time circuit information in the path that is all electrically connected each other, and By the real not time circuit information transfer to the stabilization control device；

Determining module 20, substation where for according to the real not time circuit information, determining the stabilization control device The affiliated electrical areas of transformer station where category electrical areas, the stabilization control device subordinate respectively performs station and its mutual intersecting Relation；

Adjusting module 30, for according to the overlapping relation, adjusting the off-load strategy of the stabilization control device.

The unloading system based on dispatch automated system of the present invention and subtracting based on dispatch automated system of the invention Support method correspond, the above-mentioned off-load method based on dispatch automated system embodiment illustrate technical characteristic and its have Beneficial effect suitable for the embodiment of the unloading system based on dispatch automated system, hereby give notice that.

Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope of this specification record is all considered to be.

Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims

1. a kind of off-load method based on dispatch automated system, it is characterised in that comprise the following steps：

Transformer station, the stabilization control device subordinate respectively perform station where obtaining stabilization control device using dispatch automated system Place transformer station and its real not time circuit information in the path that is all electrically connected each other, and by the real not time circuit information transfer extremely The stabilization control device；

According to the real not time circuit information, the affiliated electrical areas of transformer station, the stabilization where determining the stabilization control device The affiliated electrical areas of transformer station and its mutual overlapping relation where control device subordinate respectively performs station；And according to described intersecting Relation, adjusts the off-load strategy of the stabilization control device；

According to the real not time circuit information, determine that the stabilization control device subordinate respectively performs electric area belonging to the transformer station of station place The step of domain, includes：

Judge stabilization control device subordinate respectively perform station where transformer station to complete between transformer station where the stabilization control device Portion is electrically connected the connectedness in each path that is electrically connected in path, and is electrically connected in path at least one described in checking Bus connection switch and its first, second disconnecting link in low-voltage-grade transformer substation are simultaneously in "on" position；

The mother of transformer station where extracting the stabilization control device that some paths that are electrically connected in electrical communication state are connected The electrical areas of line；

It is the electrical areas of the bus of transformer station to set each electrical areas performed belonging to the transformer station of station place；Wherein, it is described to become Become where the stabilization control device that the bus in power station is connected for some paths that are electrically connected in electrical communication state The bus in power station.

2. the off-load method according to claim 1 based on dispatch automated system, it is characterised in that described to utilize scheduling Transformer station where transformer station, the stabilization control device subordinate where automated system obtains stabilization control device respectively perform station and The real not time circuit information in its path that is electrically connected each other includes：

The on high-tension side switch of main transformer of transformer substation, the folding information of the first disconnecting link, the second disconnecting link where stabilization control device；Its In, first disconnecting link is the disconnecting link between the connection main transformer high side switch and the bus of high pressure first, described second Disconnecting link is the disconnecting link between the connection main transformer high side switch and the bus of high pressure second.

3. the off-load method according to claim 1 based on dispatch automated system, it is characterised in that described to utilize scheduling Transformer station where transformer station, the stabilization control device subordinate where automated system obtains stabilization control device respectively perform station and The real not time circuit information in its path that is electrically connected each other also includes：

Transformer station where stabilization control device is articulated in the switch of the main transformer medium voltage side of the first bus or the second bus, first Disconnecting link, the second disconnecting link, the folding information of the 3rd disconnecting link；Wherein, first disconnecting link is opened to connect the main transformer medium voltage side Guan Yuzhong presses the disconnecting link between the first bus, and second disconnecting link is switched and middle pressure second to connect the main transformer medium voltage side Disconnecting link between bus, the 3rd disconnecting link is the disconnecting link between the connection main transformer medium voltage side switch and main transformer, The switch of the main transformer medium voltage side of the 5th bus or the 6th bus, the first disconnecting link, the second disconnecting link, the 3rd disconnecting link is articulated in open Close information；Wherein, first disconnecting link is the disconnecting link between the connection main transformer medium voltage side switch and the 5th bus of middle pressure, Second disconnecting link is switched and the middle disconnecting link pressed between the 6th bus, the 3rd disconnecting link to connect the main transformer medium voltage side To connect the disconnecting link between the main transformer medium voltage side switch and main transformer；

Transformer station's the first bus of medium voltage side where stabilization control device and the bus connection switch between the second bus, the first disconnecting link, second The folding information of disconnecting link；Wherein, first disconnecting link is the disconnecting link between the connection bus connection switch and the bus of middle pressure first, institute The second disconnecting link is stated to connect the disconnecting link between the bus connection switch and the bus of middle pressure second, the bus of medium voltage side the 5th and the 6th bus Between bus connection switch, the first disconnecting link, the folding information of the second disconnecting link；Wherein, first disconnecting link is the connection bus connection switch With the disconnecting link between the 5th bus of middle pressure, second disconnecting link is the knife between the connection bus connection switch and the bus of middle pressure the 6th Lock, bus connection switch, the first disconnecting link, the folding information of the second disconnecting link between the bus of medium voltage side first and the 5th bus；Wherein, it is described First disconnecting link is connects the disconnecting link between the bus connection switch and the bus of middle pressure first, and second disconnecting link is the connection mother Switch the disconnecting link between the 5th bus of middle pressure, bus connection switch, the first disconnecting link between the bus of medium voltage side second and the 6th bus, the The folding information of two disconnecting links；Wherein, first disconnecting link is the disconnecting link between the connection bus connection switch and the bus of middle pressure second, Second disconnecting link is the disconnecting link between the connection bus connection switch and the bus of middle pressure the 6th.

4. the off-load method according to claim 1 based on dispatch automated system, it is characterised in that described to utilize scheduling Transformer station where transformer station, the stabilization control device subordinate where automated system obtains stabilization control device respectively perform station and The real not time circuit information in its path that is electrically connected each other also includes：

Transformer station where stabilization control device be mounted on the switch of the related outlet of the first bus or the second bus, the first disconnecting link, The folding information of second disconnecting link, the 3rd disconnecting link；Wherein, first disconnecting link presses the first bus to connect the outlet switch with middle Between disconnecting link, second disconnecting link is connects the disconnecting link between the outlet switch and the bus of middle pressure second, the 3rd knife Lock is connects the disconnecting link between the outlet switch and outlet, and the related outlet for being mounted on the 5th bus or the 6th bus is opened Pass, the first disconnecting link, the second disconnecting link, the folding information of the 3rd disconnecting link；Wherein, first disconnecting link for connect the outlet switch with Disconnecting link between the 5th bus of middle pressure, second disconnecting link is the knife between the connection outlet switch and the bus of middle pressure the 6th Lock, the 3rd disconnecting link is the disconnecting link between the connection outlet switch and outlet；

It is complete between transformer station where transformer station to the stabilization control device where the stabilization control device subordinate respectively performs station Portion is electrically connected path；

The bus connection switch and its first disconnecting link, the folding information of the second disconnecting link of related transformer station on the path that is electrically connected；Its In, first disconnecting link is connects the disconnecting link between the bus connection switch and the bus of high pressure first, and second disconnecting link is connection Disconnecting link between the bus connection switch and the bus of high pressure second；

The switch and its first disconnecting link, the second disconnecting link, the 3rd knife of the related outlet of related transformer station on the path that is electrically connected The folding information of lock；Wherein, first disconnecting link is described to connect the disconnecting link between the outlet switch and the bus of high pressure first Second disconnecting link is connects the disconnecting link between the outlet switch and the bus of high pressure second, and the 3rd disconnecting link is the connection outlet Disconnecting link between switch and outlet.

5. the off-load method according to claim 1 based on dispatch automated system, it is characterised in that

According to the real not time circuit information, the step of determining the electrical areas belonging to the transformer station of stabilization control device place, including：

The affiliated electrical areas mark of the bus of middle pressure first of transformer station where stabilization control device is set to any in addition to 0 Integer value；

If it is not, then the second bus of middle pressure affiliated electrical areas mark is set to any number in addition to 0, and with the first bus this When electrical areas mark differ；

If it is not, then the 5th bus of middle pressure affiliated electrical areas mark is set to any number in addition to 0, and with the first bus, The electrical areas mark of second bus now is differed；

If it is not, then the 6th bus of middle pressure affiliated electrical areas mark is set to any number in addition to 0, and with the first bus, The electrical areas mark of second bus, the 5th bus now is differed；

If so, and the disconnecting link of medium voltage side first is in "on" position, then the main transformer affiliated electrical areas mark is set to middle pressure First disconnecting link joins the mark of the affiliated electrical areas of bus；If the disconnecting link of medium voltage side first is in gate-dividing state, the second disconnecting link and is in "on" position, then its affiliated electrical areas, which is identified, is set to the mark that the second disconnecting link of middle pressure joins the affiliated electrical areas of bus；

If it is not, then the affiliated electrical areas mark of the main transformer is set to numerical value 0；

Condition one：Main transformer high side switch state is in "on" position, meets one of following condition and is determined as satisfaction：

(1) switch and its first disconnecting link, the second disconnecting link are simultaneously in "on" position, at least one set of side switch and its first knife in Lock, the second disconnecting link are simultaneously in "on" position；

(2) this side switch and the first disconnecting link or the second disconnecting link are simultaneously in "on" position, and this described side is that transformer passes through this Switch and its disconnecting link directly can be connected with high-voltage side bus；

6. the off-load method according to claim 1 based on dispatch automated system, it is characterised in that the judgement is stable Transformer station where control device subordinate respectively performs station to the whole between transformer station where the stabilization control device is electrically connected road The connective step in each path that is electrically connected includes in footpath：

Extract the switch and its first of the related transformer station's correlation outlet in each path that is electrically connected in path of being electrically connected Disconnecting link, the second disconnecting link, the bus connection switch and its first disconnecting link of the folding information of the 3rd disconnecting link and related transformer station, the second disconnecting link Folding information；Wherein, the related transformer station includes transformer station, the stabilization where stabilization control device subordinate execution station Transformer station where control device, and the middle transformer station that each path that is electrically connected is connected；

7. the off-load method according to claim 6 based on dispatch automated system, it is characterised in that according to the folding Information, judging the connective step in each path that is electrically connected includes：

The connectivity of circuit described in any bar is：By this side the first disconnecting link information of circuit and this side the second disconnecting link information of circuit It is added, and is multiplied by this side switching information of circuit and circuit this disconnecting link information of side the 3rd；By circuit offside the first disconnecting link information and line The second disconnecting link of road offside information is added, and is multiplied by circuit offside switching information and the disconnecting link information of circuit offside the 3rd, this side information Item after computing be multiplied with the item after offside information operation obtained by value；The connectivity of whole circuits is added, institute is obtained State the connectivity of adjacent Liang Zuo transformer stations line related on the path that is electrically connected；

To be electrically connected in path, all the connectivity of adjacent Liang Zuo transformer stations is multiplied, and obtains the path that is electrically connected Connectivity；

8. the off-load method according to claim 1 based on dispatch automated system, it is characterised in that

According to the real not time circuit information, the affiliated electrical areas of transformer station, the stabilization where determining the stabilization control device The affiliated electrical areas of transformer station and its mutual overlapping relation where control device subordinate respectively performs station；And according to the phase Friendship relation, adjusts the step of the off-load strategy of the stabilization control device, including：

If the affiliated electrical areas of the main transformer of the transformer station not be 0, adjust excision load object only include with it is described Main transformer electrical areas has the load at the execution station of common factor.

9. a kind of unloading system based on dispatch automated system, it is characterised in that including：

Acquisition module, transformer station, the stable control where for obtaining stabilization control device using the dispatch automated system Transformer station where device subordinate processed respectively performs station and its real not time circuit information in the path that is all electrically connected each other, and will be described Real not time circuit information transfer is to the stabilization control device；

Determining module, for according to the real not time circuit information, determining belonging to the stabilization control device place transformer station electrically The affiliated electrical areas of transformer station and its mutual overlapping relation where region, the stabilization control device subordinate respectively perform station；

Adjusting module, for according to the overlapping relation, adjusting the off-load strategy of the stabilization control device；

The determining module determines that the stabilization control device subordinate is electric belonging to respectively performing station place transformer station according in the following manner Gas region：