CN103199493A - Realizing method of distributed networking relay protection setting calculation system - Google Patents
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Abstract
The invention discloses a realizing method of a distributed networking relay protection setting calculation system. The realizing method mainly comprises the following steps of: (1) starting the setting calculation and the power grid boundary equivalent calculation; (2) exchanging a boundary constant value; (3) forming a local power grid distributed relay protection setting calculation data environment; (4) generating a relay protection setting calculation cooperative relationship; (5) generating a relay protection setting calculation case; (6) calculating a setting calculation case, and calculating to obtain a setting calculation constant value of a local power grid according to imported boundary setting data; and (7) outputting the setting calculation constant value of the local power grid, and stopping a distributed relay protection setting calculation flow path. In the actual calculation, the calculation results obtained by wholly importing the ex-situ power grid data into the calculation results are almost to be same as one another completely; and the whole data of the ex-situ power grid is only represented by several equivalent impedances, so that the calculation speed can meet the requirement on the setting calculation.
Description
Technical field
The present invention relates to a kind of distributed networking relay protection setting computing system implementation method.
Background technology
Continuous development along with China's power grid construction, the scale of electrical network is by the inter-provincial interconnected interconnected development to the zone, carry out interconnected " three Hua Lian nets " engineering and carrying out between Central China, North China, three regional power grids in East China, the electrical network scale is increasing, and the electrical network correlation degree is more and more tightr.Under this power grid environment, cause relay protection fixed value setting to calculate and some new variations occurred: each department electrical network association is tight day by day, can't isolate out fully when adjusting calculating, the border equivalence of the simplification of original artificial calculating has had influence on precision of calculation results; Having between the electrical network of adjoining area adjusts calculates the mutual active demand of definite value; The relay protection setting computing system of unit single-point can not satisfy the requirement of adjusting under the large scale electric network and calculating.
In order to realize the problems referred to above, need to solve two key points, first is how the strange land electric network data to be incorporated into the local power grid data, and does not influence computational accuracy and computational speed; Second is how to calculate definite value and be sent to local power grid adjusting strange land electrical network relevant to be adjusted in calculating.
About first key point, the existing computing system solution of adjusting roughly has two: first kind is by artificial calculation of fault, obtain rough system equivalent and represent the strange land electrical network, to wait Value Data typing local power grid data then, this scheme can guarantee computational speed, but under current power grid environment, be not satisfy computational accuracy to require; The secondth, finish by the method that data merge, being about to the strange land electric network data is completely integrated to this electrical network, synthetic big electrical network, calculate on the basis of big electrical network then, this scheme can satisfy the computational accuracy requirement, but because it is excessive to calculate the electrical network scale, do not satisfy the requirement of computational speed.
Second key point, the method that the existing computing system of adjusting adopts manual typing or data to merge mostly solves, cooperate the problem of calculating though can solve the border definite value like this, but complex operation, and need electrical network one secondary data in strange land is completely integrated to local data, this will be created in the problem that has been mentioned in first key point, can greatly influence computational speed.
The coBase system that this patent the inside of Chinese patent (application number: 2012102771781, patent name: cooperate computational methods based on the automatic adjusting of coBase system) is mentioned is exactly the computing system of adjusting of present patent application.
Summary of the invention
Purpose of the present invention is exactly in order to address the above problem; a kind of distributed networking relay protection setting computing system implementation method is provided; it has the function of each adjoining area Setting Calculation of Relaying Protection data being carried out networking share; the user does not need loaded down with trivial details operation, just can realize the accurate distributed calculating of adjusting.
To achieve these goals, the present invention adopts following technical scheme:
A kind of distributed networking relay protection setting computing system implementation method mainly may further comprise the steps:
Step (1): calculating begins to adjust, the electrical network border is equivalent calculates: distributed networking relay protection setting computing system automatically will carry out the equivalence merging by the mode of accurate equivalence with local power grid computation model and adjacent strange land electrical network computation model, and local power grid is integrated with in strange land electric network data equivalence;
Step (2): border definite value exchange: in conjunction with the distributed calculating of adjusting, the technology that adopts border definite value bag to combine with the border equivalence, the described computing system of adjusting obtains the calculating value data of adjusting of strange land electrical network required in this calculation process of adjusting automatically;
Step (3): form the distributed relay protection setting calculation data environment of local power grid: obtain the border definite value according to local power grid data model, the equivalent calculation result data in electrical network border, exchange, form the data environment that distributed relay protection setting calculates;
Step (4): generate relay protection setting and calculate matching relationship: according to electrical network border, the strange land value data of local power grid protection observation station, importing, on distributed relay protection setting calculation data basis, form distributed relay protection setting and calculate the matching relationship data;
Step (5): generate relay protection setting and calculate case: calculate matching relationship according to the relay protection setting that generates, Value Data and border value data such as the border of importing generate distributed relay protection setting and calculate case;
Step (6): calculate the calculating case of adjusting, according to the border value data that imports, calculate the calculating definite value of adjusting of local power grid;
Step (7): local power grid adjusted calculate definite value result output, distributed relay protection setting calculation process finishes.
The concrete steps of described step (1) are as follows:
Step (1-1): in the local power grid data, divide equivalent computation bound: divide equivalent port at local power grid and strange land electrical network boundary, one end of described equivalent computation bound is returned the local power grid management, an other end is returned the strange land administration of power networks, and equivalent port is drawn at this end of local power grid;
Described step (1-1) is by manually finishing in the figure drilling;
Step (1-2): the equivalent port position of the described computing system analyzing and processing of adjusting and quantity, form the equivalent bag that calculates in equivalent border: the equivalent port of division is the end at circuit ownership local power grid, but actual equivalent port is at the other end of the equivalent computation bound of the strange land electric network data adjacent with local power grid, finish search and determine actual equivalent port position, and with packet that can exchange of its formation, identified the recipient of data in this packet;
Step (1-3): the equivalence of formation calculates bag and sends to the strange land electrical network by Exchange Service: calculated by the strange land electrical network and represent the strange land network equivalence, local power grid is sent to the strange land electrical network by equivalent Exchange Service with the equivalent packet in border; Trigger equivalent request by local power grid, and according to the equivalent strange land electrical network sign of wrapping of calculating in border packet is sent to electrical network address, corresponding strange land;
Step (1-4): strange land network equivalence Exchange Service receives the equivalence request that local power grid sends: the strange land electrical network starts equivalent data computation flow process after receiving equivalent request;
Step (1-5): split equivalent packet: equivalent packet sends in the lump with equivalent request, and this step needs the described computing system of adjusting that equivalent packet and equivalent request are split, and forms the equivalent calculated data in independent border;
Step (1-6): import equivalent border: the strange land electrical network checks these Value Data bags and revises, then equivalent border imported equivalent computational tool;
Step (1-7): calculate equivalent border: the described computing system of adjusting produces an equivalent computation requests in border that comes from local power grid, and equivalent data boundary is imported, begun to take shape equivalent calculating case, the strange land electrical network calculates personnel according to the operational mode of strange land electrical network, the utilization equivalent computational tool in the computing system of adjusting calculates the equivalent result of calculation in the needed border of local power grid;
Step (1-8): form the equivalent calculation result data bag in border: bag is calculated on the equivalent border that the described computing system of adjusting is received the strange land electrical network at first, in conjunction with the equivalent result of calculation in border, forms the equivalent result of calculation bag in border, and adds that the recipient identifies;
Step (1-9): the strange land electrical network sends equivalent the answer: the strange land grid responsive equivalence request of local power grid, and finished calculating, can send the answer of an equivalent request this moment, the answer of described equivalent request is attaching the strange land electrical network and is calculating the equivalent border calculation result data bag that forms, and sending destination address is local power grid;
Step (1-10): the equivalent Exchange Service of local power grid receives the equivalent border result answer that the strange land electrical network sends it back;
Step (1-11): with equivalent result of calculation bag from equivalence return split, and check and resolve Value Datas such as corresponding, equivalent result is connected to equivalent boundary with the form of equivalent impedance, the strange land electric network data is carried out accurate equivalence.
The concrete steps of described step (2) are as follows:
Step (2-1): specify the definite value computation bound: the local power grid user specifies the computation bound data in local power grid, described computation bound data exist with network equivalence impedance form when local power grid calculates;
Step (2-2): the bus data on local power grid and electrical network border, strange land are formed border definite value demand bag, and mark strange land electrical network sign;
Step (2-3): by border definite value Exchange Service, initiate border definite value request by local power grid, and the subsidiary border definite value demand bag that sends, wrap the sign of strange land electrical network according to the border definite value, send to the strange land electrical network exactly;
Step (2-4): electrical network border, strange land definite value Exchange Service is received the border definite value request of local power grid, and the border value data is resolved; The strange land electrical network is according to the border bus data in the equivalence bag, searches the circuit observation station data that the strange land electrical network that links with the border bus in the electrical network of strange land is administered automatically;
Step (2-5): in electric network protection value data storehouse, strange land, inquire about value data according to the observation station data by the strange land electrical network, and form border definite value bag as a result;
Step (2-6): the strange land electrical network is sent to local power grid by border definite value Exchange Service with border definite value result data bag;
Step (2-7): the border definite value that the local power grid basis receives bag is as a result resolved, according to the border bus in the packet, with the observation station in the extremely corresponding local power grid of border value data auto-associating, when calculating local power grid border observation station, just can get access to the observation station data of strange land electrical network automatically, during calculating, based on electrical network one secondary data be exactly the local power grid initial data, guaranteed computational speed.
The equivalent computation bound of described step (1-1) is a transmission line.
Beneficial effect of the present invention:
Utilize this solution, solved well carry in first key point to difficult point, because equivalent calculating is not simple single-point equivalence, but 2 or multiple spot equivalence more exactly, and support complicated arbitrarily equivalent border in theory, thus satisfy calculation requirement in the equivalent accuracy for the strange land electrical network, in Practical Calculation, use the result of calculation of this scheme, with all the resulting result of calculation of importing is almost completely consistent with the strange land electric network data; Owing to only used several equivalent impedances to represent the total data of strange land electrical network, the computational speed of the computational speed when considering the strange land electrical network when only calculating in local power grid inside almost is consistent, and computational speed can satisfy the requirement of the calculating of adjusting.
The implementation method of the distributed relay protection setting computing system that the model that uses this scheme to propose drives; successful Application is in the distributed computing system of adjusting of CoBase; this system the Shandong Province, transfer and Tibet province, allocate and transport row, the performance excellent performance.In the evolution of relay protection setting computing system; the developer is seeking a kind of diversified demand of operations staff that namely can satisfy always; can avoid the method for frequent update routine again; through practical proof; above-described scheme is a kind of effective, the feasible scheme that addresses this problem.
Description of drawings
Fig. 1 is distributed relay protection setting calculation flow chart;
Fig. 2 is the detail flowchart of first step among Fig. 1;
Fig. 3 is the detail flowchart of second step among Fig. 1.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, a kind of distributed networking relay protection setting computing system implementation method mainly may further comprise the steps:
Step (1): calculating begins to adjust, the electrical network border is equivalent calculates: distributed networking relay protection setting computing system automatically will carry out the equivalence merging by the mode of accurate equivalence with local power grid computation model and adjacent strange land electrical network computation model, local power grid is integrated with in strange land electric network data equivalence, and this is first key point that whole distributed relay protection setting calculates;
Step (2): border definite value exchange: in conjunction with the distributed calculating of adjusting, the technology that adopts border definite value bag to combine with the border equivalence, the described computing system of adjusting obtains the calculating value data of adjusting of strange land electrical network required in this calculation process of adjusting automatically, and this step is second key point of whole computational process;
Step (3): form the distributed relay protection setting calculation data environment of local power grid: obtain the border definite value according to local power grid data model, the equivalent calculation result data in electrical network border, exchange, form the data environment that distributed relay protection setting calculates;
Step (4): generate relay protection setting and calculate matching relationship: according to electrical network border, the strange land value data of local power grid protection observation station, importing, on distributed relay protection setting calculation data basis, form distributed relay protection setting and calculate the matching relationship data;
Step (5): generate relay protection setting and calculate case: calculate matching relationship according to the relay protection setting that generates, Value Data and border value data such as the border of importing generate distributed relay protection setting and calculate case;
Step (6): calculate the calculating case of adjusting, according to the border value data that imports, calculate the calculating definite value of adjusting of local power grid;
Step (7): local power grid adjusted calculate definite value result output, distributed relay protection setting calculation process finishes.
As shown in Figure 2, the concrete steps of described step (1) are as follows:
Step (1-1): in the local power grid data, divide equivalent computation bound: divide equivalent port at local power grid and strange land electrical network boundary, these borders are a transmission line often, circuit one end is returned the local power grid management, an other end is returned the strange land administration of power networks, and equivalent port is drawn at this end of local power grid, and described step (1-1) is by manually finishing in the figure drilling;
Step (1-2): the equivalent port position of the computing system analyzing and processing of adjusting and quantity, form the equivalent bag that calculates in equivalent border: the equivalent port of division is the end at circuit ownership local power grid, but actual equivalent port generally can be at the circuit other end of the strange land electric network data adjacent with local power grid, this step will be finished intelligent search and be determined actual equivalent port position, and with packet that can exchange of its formation, identified the recipient of data in this packet;
Step (1-3): the equivalence of formation calculates bag and sends to the strange land electrical network by Exchange Service: because calculative equivalence is to represent the strange land electrical network, should be to be calculated by the strange land electrical network, therefore, local power grid need be sent to the strange land electrical network with the equivalent packet in border by equivalent Exchange Service.Computation requirement is produced by local power grid, therefore, triggers equivalent request by local power grid, and according to the equivalent strange land electrical network sign of wrapping of calculating in border packet is sent to electrical network address, corresponding strange land;
Step (1-4): strange land network equivalence Exchange Service receives the equivalence request that local power grid sends: the strange land electrical network starts equivalent data computation flow process after receiving equivalent request;
Step (1-5): split equivalent packet: equivalent packet sends in the lump with equivalent request, and this step needs the described computing system of adjusting automatically equivalent packet and equivalent request to be split, and forms the equivalent calculated data in independent border;
Step (1-6): import equivalent border: because computation bound is divided and generated by local power grid, border equivalent point wherein is again the data of strange land electrical network administration, this just needs the strange land electrical network that these Value Data bags are checked and revises, then equivalent border is imported equivalent computational tool, these functions are finished automatically by the described computing system of adjusting;
Step (1-7): calculate equivalent border: when strange land electrical network calculating personnel open equivalent computational tool, can how find an equivalent computation requests in border that comes from local power grid, and equivalent data boundary is imported, begun to take shape equivalent calculating case, at this moment, the strange land electrical network calculates personnel need be according to the operational mode of strange land electrical network etc., utilizes the equivalent computational tool in the computing system of adjusting, and calculates the equivalent result of calculation in the needed border of local power grid;
Step (1-8): form the equivalent calculation result data bag in border: the equivalent calculation result data that strange land electrical network calculating personnel calculate is the form that is suitable for interface display and storage, and be not suitable for carrying out network transmission and resolve, bag is calculated on the equivalent border that program is received the strange land electrical network automatically at first, in conjunction with the equivalent result of calculation in border, form the equivalent result of calculation bag in border, and add that the recipient identifies---local power grid;
Step (1-9): the strange land electrical network sends equivalent the answer: the strange land grid responsive equivalence request of local power grid, and finished calculating, can send the answer of an equivalent request this moment, this answer is attaching the strange land electrical network and is calculating the equivalent border calculation result data bag that forms, and sending destination address is local power grid;
Step (1-10): the equivalent Exchange Service of local power grid receives the equivalent border result answer that the strange land electrical network sends it back;
Step (1-11): with equivalent result of calculation bag from equivalence return split, and check and resolve Value Datas such as corresponding, equivalent result is connected to equivalent boundary with the form of equivalent impedance, the strange land electric network data is carried out accurate equivalence.
As shown in Figure 3, the concrete steps of described step (2) are as follows:
Step (2-1): specify the definite value computation bound: the local power grid user specifies the computation bound data in local power grid, the bus of these border circuit one ends is represented, connecting the circuit of returning strange land electrical network administration toward contact on these buses, but can't see these data in the local power grid, these data exist with network equivalence impedance form when local power grid calculates;
Step (2-2): the bus data on local power grid and electrical network border, strange land are formed border definite value demand bag, and mark strange land electrical network sign;
Step (2-3): by border definite value Exchange Service, initiate border definite value request by local power grid, and the subsidiary border definite value demand bag that sends, wrap the sign of strange land electrical network according to the border definite value, send to the strange land electrical network exactly;
Step (2-4): electrical network border, strange land definite value Exchange Service is received the border definite value request of local power grid, and the border value data is resolved.Because the just bus data that local power grid sends, do not indicate protection observation station position, need the strange land electrical network according to the border bus data in the equivalence bag, search the circuit observation station data that the strange land electrical network that links with the border bus in the electrical network of strange land is administered automatically;
Step (2-5): in electric network protection value data storehouse, strange land, inquire about value data according to the observation station data by the strange land electrical network, and form border definite value bag as a result;
Step (2-6): the strange land electrical network is sent to local power grid by border definite value Exchange Service with border definite value result data bag;
Step (2-7): the border definite value that the local power grid basis receives bag is as a result resolved, according to the border bus in the packet, with the observation station in the extremely corresponding local power grid of border value data auto-associating, like this, when calculating local power grid border observation station, just can get access to the observation station data of strange land electrical network automatically, but owing to do not merge an electric network data of strange land electrical network, when therefore calculating, based on electrical network one secondary data be exactly the local power grid initial data, guaranteed computational speed.
Though above-mentionedly by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (4)
1. a distributed networking relay protection setting computing system implementation method is characterized in that, mainly may further comprise the steps:
Step (1): calculating begins to adjust, the electrical network border is equivalent calculates: distributed networking relay protection setting computing system automatically will carry out the equivalence merging by the mode of accurate equivalence with local power grid computation model and adjacent strange land electrical network computation model, and local power grid is integrated with in strange land electric network data equivalence;
Step (2): border definite value exchange: in conjunction with the distributed calculating of adjusting, the technology that adopts border definite value bag to combine with the border equivalence, the described computing system of adjusting obtains the calculating value data of adjusting of strange land electrical network required in this calculation process of adjusting automatically;
Step (3): form the distributed relay protection setting calculation data environment of local power grid: obtain the border definite value according to local power grid data model, the equivalent calculation result data in electrical network border, exchange, form the data environment that distributed relay protection setting calculates;
Step (4): generate relay protection setting and calculate matching relationship: according to electrical network border, the strange land value data of local power grid protection observation station, importing, on distributed relay protection setting calculation data basis, form distributed relay protection setting and calculate the matching relationship data;
Step (5): generate relay protection setting and calculate case: calculate matching relationship according to the relay protection setting that generates, Value Data and border value data such as the border of importing generate distributed relay protection setting and calculate case;
Step (6): calculate the calculating case of adjusting, according to the border value data that imports, calculate the calculating definite value of adjusting of local power grid;
Step (7): local power grid adjusted calculate definite value result output, distributed relay protection setting calculation process finishes.
2. a kind of distributed networking relay protection setting computing system implementation method as claimed in claim 1 is characterized in that the concrete steps of described step (1) are as follows:
Step (1-1): in the local power grid data, divide equivalent computation bound: divide equivalent port at local power grid and strange land electrical network boundary, one end of described equivalent computation bound is returned the local power grid management, an other end is returned the strange land administration of power networks, and equivalent port is drawn at this end of local power grid;
Step (1-2): the equivalent port position of the described computing system analyzing and processing of adjusting and quantity, form the equivalent bag that calculates in equivalent border: the equivalent port of division is the end at circuit ownership local power grid, but actual equivalent port is at the other end of the equivalent computation bound of the strange land electric network data adjacent with local power grid, finish search and determine actual equivalent port position, and with packet that can exchange of its formation, identified the recipient of data in this packet;
Step (1-3): the equivalence of formation calculates bag and sends to the strange land electrical network by Exchange Service: calculated by the strange land electrical network and represent the strange land network equivalence, local power grid is sent to the strange land electrical network by equivalent Exchange Service with the equivalent packet in border; Trigger equivalent request by local power grid, and according to the equivalent strange land electrical network sign of wrapping of calculating in border packet is sent to electrical network address, corresponding strange land;
Step (1-4): strange land network equivalence Exchange Service receives the equivalence request that local power grid sends: the strange land electrical network starts equivalent data computation flow process after receiving equivalent request;
Step (1-5): split equivalent packet: equivalent packet sends in the lump with equivalent request, and this step needs the described computing system of adjusting that equivalent packet and equivalent request are split, and forms the equivalent calculated data in independent border;
Step (1-6): import equivalent border: the strange land electrical network checks these Value Data bags and revises, then equivalent border imported equivalent computational tool;
Step (1-7): calculate equivalent border: the described computing system of adjusting produces an equivalent computation requests in border that comes from local power grid, and equivalent data boundary is imported, begun to take shape equivalent calculating case, the strange land electrical network calculates personnel according to the operational mode of strange land electrical network, the utilization equivalent computational tool in the computing system of adjusting calculates the equivalent result of calculation in the needed border of local power grid;
Step (1-8): form the equivalent calculation result data bag in border: bag is calculated on the equivalent border that the described computing system of adjusting is received the strange land electrical network at first, in conjunction with the equivalent result of calculation in border, forms the equivalent result of calculation bag in border, and adds that the recipient identifies;
Step (1-9): the strange land electrical network sends equivalent the answer: the strange land grid responsive equivalence request of local power grid, and finished calculating, can send the answer of an equivalent request this moment, the answer of described equivalent request is attaching the strange land electrical network and is calculating the equivalent border calculation result data bag that forms, and sending destination address is local power grid;
Step (1-10): the equivalent Exchange Service of local power grid receives the equivalent border result answer that the strange land electrical network sends it back;
Step (1-11): with equivalent result of calculation bag from equivalence return split, and check and resolve Value Datas such as corresponding, equivalent result is connected to equivalent boundary with the form of equivalent impedance, the strange land electric network data is carried out accurate equivalence.
3. a kind of distributed networking relay protection setting computing system implementation method as claimed in claim 1 is characterized in that the concrete steps of described step (2) are as follows:
Step (2-1): specify the definite value computation bound: the local power grid user specifies the computation bound data in local power grid, described computation bound data exist with network equivalence impedance form when local power grid calculates;
Step (2-2): the bus data on local power grid and electrical network border, strange land are formed border definite value demand bag, and mark strange land electrical network sign;
Step (2-3): by border definite value Exchange Service, initiate border definite value request by local power grid, and the subsidiary border definite value demand bag that sends, wrap the sign of strange land electrical network according to the border definite value, send to the strange land electrical network exactly;
Step (2-4): electrical network border, strange land definite value Exchange Service is received the border definite value request of local power grid, and the border value data is resolved; The strange land electrical network is according to the border bus data in the equivalence bag, searches the circuit observation station data that the strange land electrical network that links with the border bus in the electrical network of strange land is administered automatically;
Step (2-5): in electric network protection value data storehouse, strange land, inquire about value data according to the observation station data by the strange land electrical network, and form border definite value bag as a result;
Step (2-6): the strange land electrical network is sent to local power grid by border definite value Exchange Service with border definite value result data bag;
Step (2-7): the border definite value that the local power grid basis receives bag is as a result resolved, according to the border bus in the packet, with the observation station in the extremely corresponding local power grid of border value data auto-associating, when calculating local power grid border observation station, just can get access to the observation station data of strange land electrical network automatically, during calculating, based on electrical network one secondary data be exactly the local power grid initial data, guaranteed computational speed.
4. a kind of distributed networking relay protection setting computing system implementation method as claimed in claim 2 is characterized in that the equivalent computation bound of described step (1-1) is a transmission line.
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| CN103577896A (en) * | 2013-11-12 | 2014-02-12 | 国网安徽省电力公司 | Regional division method for large-scale power grid setting calculation |
| CN103577896B (en) * | 2013-11-12 | 2017-03-01 | 国网安徽省电力公司 | A kind of region partitioning method of large scale electric network adaptive setting |
| CN104283314A (en) * | 2014-10-16 | 2015-01-14 | 国家电网公司 | Processing method for distributed setting calculation models layered according to voltage levels |
| CN112417372A (en) * | 2020-12-07 | 2021-02-26 | 国网新疆电力有限公司 | Fixed value setting calculation method and system suitable for power grid of any scale |
| CN112417372B (en) * | 2020-12-07 | 2024-02-09 | 国网新疆电力有限公司 | Fixed value setting calculation method and system suitable for power grid of any scale |
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