CN106655176B - Power distribution network online loop closing decision method and system - Google Patents
Power distribution network online loop closing decision method and system Download PDFInfo
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Abstract
The embodiment of the invention discloses a power distribution network online loop closing decision method and a power distribution network online loop closing decision system. The mobile client is combined with the 4G network, so that the problem of decision result data delay commonly existing in a traditional loop closing decision system is well solved, power dispatching operators can calculate and decide the loop closing of the circuit at any time and any place, the actual engineering requirements are met, and the method has a great positive effect on improving the stability and the reliability of the power distribution network.
Description
Technical Field
The invention relates to the field of distribution network scheduling of a power grid, in particular to a power distribution network online loop closing decision method and system.
Background
The power industry is used as an important basic industry related to the national civilization, provides an important basic guarantee for the development of the economic society, and has a reliable power supply relationship to the aspects of the development of the national economy from the daily life of the people to the production and operation activities of various industries. With the rapid development of social economy, the continuous progress of science and technology and the continuous improvement of the living standard of people, people have more and more requirements on electric power and have more and more high requirements on safe and stable power supply. At present, the development of a power distribution network in a power system in China is faster and faster, the power supply modes of bidirectional power supply and multi-power supply of the power distribution network are increased day by day, and the power distribution network becomes more and more complicated. When a fault occurs at one position in the power distribution network, normal power utilization of a large part of users is probably influenced, and even the result of the estimation of the whole power grid is difficult. In order to ensure the stability and reliability of the power distribution network in operation, the looped network power supply is an effective power supply mode for improving the power supply reliability of the power distribution network at present. The ring network power supply mode of the power distribution network in China mainly adopts a closed-loop structure and open-loop operation, and has the advantages that when the power distribution network is subjected to network reconstruction, equipment maintenance or load transfer, an original open-loop circuit can select a proper power supply path according to actual conditions to change flexibly into closed-loop operation, and an original closed-loop circuit is changed into open-loop operation, so that the power failure time of users can be reduced, and the power supply reliability and the operation economy of the power distribution network can be improved.
The biggest problem in the operation mode of adopting a closed-loop structure and open-loop operation is when to carry out the loop closing and opening operation of the power distribution network. When a power distribution network operates, if the conditions of load transfer, equipment maintenance and the like occur, the uninterrupted load transfer is realized by adopting electrified loop closing operation. However, the live loop closing operation may generate a large loop closing current, which may result in overload of a line, even a protection action, and the like, which affect the safe operation of the power distribution network. Therefore, before the loop closing operation, it is necessary to check whether the loop closing operation satisfies the safety standard through the loop closing current calculation.
At the beginning, for the loop closing operation of a power distribution network, electric power workers often judge whether a circuit can be closed according to load flow calculation and self experience, however, due to the fact that certain randomness exists in the experience, errors are likely to occur, once the loop closing fails, a user is powered off, even an electric facility is damaged, and serious economic loss is caused.
With the development and progress of the times, systems for assisting power dispatching personnel in making distribution network loop closing and loop opening decisions are also developed to a certain extent. A distribution network closed-loop operation circulation analysis system is researched and developed in Suzhou to assist distribution network closed-loop operation and distribution network open-loop operation. The system carries out development programming in a VC + +6.0 environment, adopts an Access database to store data, and consists of a drawing and system maintenance subsystem and a closed loop calculation analysis subsystem. The design idea of the system is as follows: before the closed loop operation of the distribution network, the operation scheduling personnel firstly carries out corresponding load flow calculation in the system according to the actual situation, and finally guides the operation according to the calculation result obtained by the system.
Aiming at the conditions of large power supply amount, more high-voltage users, frequent power failure switching load operation and more power failure operation time of the power distribution network in the Jilin city, the power distribution network closed loop operation decision support system is developed and put into use in the Jilin city, and good effects are achieved. The system aims to enable a dispatcher to perform corresponding load flow calculation before the loop closing operation, so that whether the current after the loop closing exceeds the limit or not is judged by combining the load flow calculation result with the self operation experience, and the optimal loop closing path is quickly and accurately found out, so that the mistaken closing and the missing closing can be avoided. And for the condition that loop closing cannot be performed, auxiliary measures are also provided for the dispatcher to refer to.
In actual power operation, a power dispatching person often performs loop closing and opening operation on a line on the site according to a decision command in an operation ticket sent by a central station. However, data such as current in the ring network are changed instantly, and a time delay is already passed when a decision command sent by a master station is transmitted to an operator, so that the data is not accurate enough and cannot be used as a basis for assisting decision.
Most of the existing power distribution network convergence and solution decision-making systems perform offline operation according to existing offline data, and even an online decision-making system is built on a web platform. The decision result made by the system has time error and data error, the time when the system makes the decision and the time operated by the operator have certain difference, and the time difference directly causes the uncertainty of the decision result, thereby influencing the accuracy of the loop closing and opening operation.
Therefore, it is a technical problem to be solved by those skilled in the art to provide an online loop closing decision method and system that meets the actual engineering requirements and provides a real-time decision result for the loop closing and opening operation of a power distribution network.
Disclosure of Invention
The embodiment of the invention provides a power distribution network online loop closing decision method and a power distribution network online loop closing decision system, which solve the problem that the existing system can not carry out loop closing and opening decision on a looped network at any time and any place, meet the actual engineering requirements, provide a real-time decision result for the loop closing and opening operation of a power distribution network, greatly improve the stability of the power distribution network, and save a large amount of manpower, material resources and financial resources for a power grid company.
The embodiment of the invention provides an online loop closing decision method for a power distribution network, which comprises the following steps:
after acquiring a loop closing calculation task sent by a server, a mobile client acquires an operation instruction corresponding to the loop closing calculation task, and sends the operation instruction to a background system end through the server;
and after the background system end obtains the operation instruction sent by the server end, calculating and checking the closed loop calculation task to obtain a check result, and sending the check result to the mobile client end through the server end.
Preferably, after acquiring the loop closing calculation task sent by the server, the mobile client acquires an operation instruction corresponding to the loop closing calculation task, and before sending the operation instruction to the background system end through the server, the method further includes:
and after the background system end acquires the closed-loop calculation task, storing the closed-loop calculation task into the server end.
Preferably, after the background system side obtains the operation instruction sent by the server side, the calculating and checking of the closed loop calculation task is performed to obtain a check result, and the sending of the check result to the mobile client side through the server side specifically includes:
and after the background system end obtains the operation instruction sent by the server end, obtaining a power grid CIM model file and a real-time data file sent by a database system end through the server end, performing calculation and inspection on the closed loop calculation task according to the power grid CIM model file and the real-time data file to obtain an inspection result, and sending the inspection result to the mobile client end through the server end.
Preferably, the sending, by the server side, the inspection result to the mobile client side specifically includes:
and the server sends the inspection result to the mobile client through a 4G network.
Preferably, the power grid CIM model file includes: the network distribution CIM model file comprises a main network CIM model file and a distribution network CIM model file.
Preferably, the closed-loop calculation task, the operation instruction and the inspection result are all in a Json format.
Preferably, an embodiment of the present invention further provides an online loop closing decision system for a power distribution network, including: the system comprises a mobile client, a server and a background system;
the mobile client is in communication connection with the server;
and the server end is in communication connection with the background system end.
The mobile client is used for acquiring an operation instruction corresponding to the loop closing calculation task after acquiring the loop closing calculation task sent by the server, and sending the operation instruction to the background system end through the server;
the background system end is used for calculating and checking the closed loop calculation task after acquiring the operation instruction sent by the server end to obtain a check result, and sending the check result to the mobile client end through the server end.
Preferably, the background system is further configured to store the closed-loop calculation task in the server side after acquiring the closed-loop calculation task.
Preferably, the power distribution network online loop closing decision system provided in the embodiment of the present invention further includes: a database system end;
the database system end is in communication connection with the server end;
and the database system end is used for sending the power grid CIM model file and the real-time data file to the server end for storage.
Preferably, the background system side is further configured to obtain a power grid CIM model file and a real-time data file sent by the database system side through the server side after obtaining the operation instruction sent by the server side, perform calculation and inspection on the closed loop calculation task according to the power grid CIM model file and the real-time data file to obtain an inspection result, and send the inspection result to the mobile client side through the server side.
According to the technical scheme, the embodiment of the invention has the following advantages:
the embodiment of the invention provides a power distribution network online loop closing decision method and a power distribution network online loop closing decision system, wherein the power distribution network online loop closing decision method comprises the following steps: after acquiring a loop closing calculation task sent by a server, a mobile client acquires an operation instruction corresponding to the loop closing calculation task, and sends the operation instruction to a background system end through the server; and after the background system end obtains the operation instruction sent by the server end, calculating and checking the closed loop calculation task to obtain a check result, and sending the check result to the mobile client end through the server end. The embodiment of the invention arranges the loop closing calculation software at the background system end, stores the data at the server end, and performs data interaction between the mobile client end and the background system end through the server end. The mobile client is combined with the 4G network, so that the problem of decision result data delay commonly existing in a traditional loop closing decision system is well solved, power dispatching operators can calculate and decide the loop closing of the circuit at any time and any place, the actual engineering requirements are met, and the method has a great positive effect on improving the stability and the reliability of the power distribution network.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic flow chart of a power distribution network online loop closing decision method according to an embodiment of the present invention;
fig. 2 is another schematic flow chart of a power distribution network online loop closing decision method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an online loop closing decision system for a power distribution network according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating an application of an online loop closing decision system for a power distribution network according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the exchange of data between the various levels of the system;
fig. 6 is a schematic diagram of encryption and decryption of system data transmission.
Detailed Description
The embodiment of the invention provides a power distribution network online loop closing decision method and a power distribution network online loop closing decision system, which solve the problem that the existing system can not carry out loop closing and opening decision on a looped network at any time and any place, meet the actual engineering requirements, provide a real-time decision result for the loop closing and opening operation of a power distribution network, greatly improve the stability of the power distribution network, and save a large amount of manpower, material resources and financial resources for a power grid company.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of an online loop closing decision method for a power distribution network according to the present invention includes:
101. after acquiring a loop closing calculation task sent by a server, a mobile client acquires an operation instruction corresponding to the loop closing calculation task, and sends the operation instruction to a background system end through the server;
after a mobile client used by a power dispatching person in a loop closing operation site obtains a loop closing calculation task sent by a server, the power dispatching person sends an operation instruction corresponding to the loop closing calculation task to the mobile client, the mobile client sends the operation instruction to the server, and the server sends the operation instruction to a background system end.
102. And after the background system end obtains the operation instruction sent by the server end, the calculation and inspection are carried out on the closed loop calculation task to obtain an inspection result, and the inspection result is sent to the mobile client end through the server end.
After the power dispatching personnel at the background system end obtains the operation instruction sent by the server end through the PC at the background system end, the closed loop calculation task is calculated and checked through closed loop calculation software at the background system end to obtain a check result, and the check result is sent to the mobile client end through the server end.
Referring to fig. 2, another embodiment of an online loop closing decision method for a power distribution network according to an embodiment of the present invention includes:
201. and after the background system end acquires the closed loop calculation task, storing the closed loop calculation task in the server end.
The power scheduling personnel at the background system end inputs daily closed-loop calculation tasks to the background system end, the background system end stores the closed-loop calculation tasks into the server end, and it should be noted that the server end distributes the closed-loop calculation tasks to the power scheduling personnel at each closed-loop engineering site.
202. After acquiring a loop closing calculation task sent by a server, a mobile client acquires an operation instruction corresponding to the loop closing calculation task, and sends the operation instruction to a background system end through the server;
after a mobile client used by a power dispatching person in a loop closing operation site obtains a loop closing calculation task sent by a server, the power dispatching person sends an operation instruction corresponding to the loop closing calculation task to the mobile client, the mobile client sends the operation instruction to the server, and the server sends the operation instruction to a background system end.
203. And after the background system end obtains the operation instruction sent by the server end, the power grid CIM model file and the real-time data file sent by the database system end are obtained through the server end, the closed loop calculation task is subjected to calculation and inspection according to the power grid CIM model file and the real-time data file, an inspection result is obtained, and the inspection result is sent to the mobile client end through the server end.
And after the power dispatching personnel at the background system end obtains the operation instruction sent by the server end through the PC at the background system end, the power dispatching personnel obtain the power grid CIM model file and the real-time data file sent by the database system end through the server end, the closed loop calculation task is subjected to calculation and inspection through closed loop calculation software at the background system end according to the power grid CIM model file and the real-time data file to obtain an inspection result, and the inspection result is sent to the mobile client end through the server end. It should be noted that the server side sends the verification result to the mobile client through the 4G network. The power grid CIM model file comprises: a main network CIM model file and a distribution network CIM model file,
in this embodiment, the closed-loop calculation task, the operation instruction, and the check result are all in the Json format.
Referring to fig. 3, an embodiment of an online loop closing decision system for a power distribution network according to the present invention includes:
the system comprises a mobile client, a server and a background system;
the mobile client is in communication connection with the server;
and the server end is in communication connection with the background system end.
The mobile client is used for acquiring an operation instruction corresponding to the closed-loop calculation task after acquiring the closed-loop calculation task sent by the server, and sending the operation instruction to the background system end through the server;
and the background system end is used for calculating and checking the closed loop calculation task after acquiring the operation instruction sent by the server end to obtain a check result, and sending the check result to the mobile client through the server end.
Further, the background system is further configured to store the closed-loop calculation task in the server side after the closed-loop calculation task is acquired.
Further, the power distribution network online loop closing decision system provided by the embodiment of the present invention further includes: a database system end;
the database system end is in communication connection with the server end;
the database system side is used for sending the power grid CIM model file and the real-time data file to the server side for storage.
Further, the background system end is further configured to obtain the power grid CIM model file and the real-time data file sent by the database system end through the server end after obtaining the operation instruction sent by the server end, perform calculation and inspection on the closed loop calculation task according to the power grid CIM model file and the real-time data file to obtain an inspection result, and send the inspection result to the mobile client end through the server end.
In the above, the structure and the connection mode of the online loop closing decision system for the power distribution network are described in detail, and for convenience of understanding, the application of the online loop closing decision system for the power distribution network will be described in a specific application scenario, where the application scenario includes:
as shown in fig. 4, the system of this application embodiment includes: the system comprises a calculation data management layer, a core calculation and service response layer, a mobile data communication layer and a mobile client.
The calculation data management layer shown in fig. 4 is equivalent to a database system side in the online loop closing decision system for the power distribution network provided by the embodiment of the present invention, and the scheduling automation system and the distribution network automation system provide real-time data of the power distribution network, and perform two-step data processing through a data processing conversion program and a data splicing program, and store the processed data in the database system to wait for the next operation.
The core computation and service response layer is composed of a database server, a WEB information server and a PC client, where the database server and the WEB information server shown in fig. 4 are equivalent to a server in the online loop closing decision system for the power distribution network provided by the embodiment of the present invention, where the database server stores data downloaded by the database system in the computation data management layer, and the WEB information server receives and executes information commands. The PC client is equivalent to a background system end in the power distribution network online loop closing decision system provided by the embodiment of the invention.
The mobile data communication layer is responsible for data communication between layers as the name implies, takes a 4G network as a medium, performs data transmission through APN firewall, base station and other facilities provided by an operator, and ensures the safety in the data transmission process. The mobile client serves as a core component of the system, and the system can perform decision assistance on the circuit loop closing at any time and any place.
The system is a flow diagram for closed loop calculation and inspection, and comprises the following specific steps:
(1) the method comprises the steps that power scheduling personnel obtain a daily loop closing calculation task provided by a system through background web platform loop closing calculation software;
(2) the background web platform loop closing calculation software stores the acquired loop closing calculation task in the server side;
(3) the method comprises the following steps that power dispatching personnel call a daily loop closing calculation task stored by a server through a mobile client on a loop closing engineering site;
(4) according to the field requirement, the power dispatching personnel performs loop closing calculation and inspection on a certain circuit to be closed, and the mobile client uploads an operation command to the server end through the 4G network according to the instruction;
(5) the server side receives the operation command, the background web platform carries out calculation and inspection on the closed loop circuit to obtain an inspection result and sends the inspection result to the mobile client side through the 4G network;
(6) and the power dispatching personnel receives the loop closing detection result by using the mobile client and makes loop closing judgment on the circuit to be closed according to the result.
In an application example, because a power grid company has different loop closing calculation tasks every day, the loop closing calculation tasks of the same day are generally issued in the morning, and then power dispatching personnel of the power grid company need to perform loop closing calculation inspection on corresponding lines according to the issued task list.
It should be noted that what is realized in step (1) is that the background system (background web platform loop closing calculation software) stores the loop closing calculation task issued by the power grid company on the same day into the background.
And (2) the background system stores the closed-loop calculation task stored in the step (1) into a server database.
The step (3) is related to the step (1) and the step (2) in that: the background system is connected with the mobile client through the server, so that the loop closing calculation task is stored in a server database by matching the step (1) and the step (2), and the mobile client in the step (3) can call the loop closing task from the server.
The Web platform and the computing software are the same device, that is, the loop closing computing software of the background Web platform, which is also called a background system, and the loop closing computing software is a PC client which is established on the background Web platform and is located in a core computing and service response layer in fig. 4.
FIG. 5 is a schematic diagram of the exchange of data between the various layers of the system. The system data transmission consists of three layers, and the data transmission steps among the layers are as follows:
a. updating a main network CIM model file, a real-time data file, a distribution network CIM model file and a real-time data file in the data transmission layer at a certain time frequency and storing the updated real-time data files in a database server at a server end;
b. after receiving a closed loop calculation check command, the mobile client creates a Json object and uploads the Json object to a server layer through a 4G network;
c. the server layer receives the Json object, decodes the Json object and performs loop closing calculation by background software;
d. the server layer performs code grouping on the closed loop calculation result and transmits the closed loop calculation result to the mobile client through the 4G network in a Json object form;
e. and the mobile client receives the Json object, and displays a closed loop test result after decoding.
The data transmission layer is a part of the calculation data management layer and is mainly responsible for data transmission.
The main network CIM model file, the real-time data file, the distribution network CIM model file and the real-time data file are respectively power distribution network line specific data extracted from the dispatching automation system and the distribution network automation system of the calculation data management layer in the figure 4 and are used for closed loop calculation.
In order to ensure the security of the data of the power system in the data transmission process, the system of the present invention performs an encryption operation on the data transmission process, and fig. 6 is a schematic diagram of encryption and decryption of system data transmission, and the specific steps are as follows:
1) the mobile client needs to upload a command to the server, and then generates a random number as a symmetric key.
2) The mobile client requests the public key from the server.
3) And the server side sends the public key to the mobile client side.
4) The mobile client encrypts the symmetric key using the public key of the server side.
5) And the mobile client sends the encrypted symmetric key to the server.
6) And the server side decrypts by using the private key to obtain the symmetric key of the mobile client side.
7) And the server side decrypts the encrypted data by using the symmetric key and then performs calculation processing.
8) The server side needs to return the processing result to the mobile client side, and then generates a random number as a symmetric key.
9) And similarly, the server and the mobile client perform data interaction according to the previous steps, and finally the mobile client obtains a decrypted processing result.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. An online loop closing decision method for a power distribution network is characterized by comprising the following steps:
after the background system end obtains the closed loop calculation task, the closed loop calculation task is stored in the server end;
after acquiring a loop closing calculation task sent by a server, a mobile client acquires an operation instruction corresponding to the loop closing calculation task, and sends the operation instruction to a background system end through the server;
after the background system end obtains the operation instruction sent by the server end, the calculation and inspection are carried out on the closed loop calculation task to obtain an inspection result, and the inspection result is sent to the mobile client end through the server end;
the specific process comprises the following steps:
the method comprises the steps that power scheduling personnel obtain a daily loop closing calculation task provided by a system through background web platform loop closing calculation software;
the background web platform loop closing calculation software stores the acquired loop closing calculation task in the server side;
the method comprises the following steps that power dispatching personnel call a daily loop closing calculation task stored by a server through a mobile client on a loop closing engineering site;
according to the field requirement, the power dispatching personnel performs loop closing calculation and inspection on a certain circuit to be closed, and the mobile client uploads an operation command to the server end through the 4G network according to the instruction;
the server side receives the operation command, the background web platform carries out calculation and inspection on the closed loop circuit to obtain an inspection result and sends the inspection result to the mobile client side through the 4G network;
the power dispatching personnel receives the loop closing detection result by using the mobile client and makes loop closing judgment on a circuit to be closed according to the result;
and after the background system end obtains the operation instruction sent by the server end, obtaining a power grid CIM model file and a real-time data file sent by a database system end through the server end, performing calculation and inspection on the closed loop calculation task according to the power grid CIM model file and the real-time data file to obtain an inspection result, and sending the inspection result to the mobile client end through the server end.
2. The power distribution network online loop closing decision method according to claim 1, wherein the sending of the inspection result to the mobile client by the server specifically comprises:
and the server sends the inspection result to the mobile client through a 4G network.
3. The power distribution network online loop closing decision method according to claim 1, wherein the power distribution network CIM model file comprises: the network distribution CIM model file comprises a main network CIM model file and a distribution network CIM model file.
4. The power distribution network online loop closing decision method according to any one of claims 1 to 3, wherein the loop closing calculation task, the operation instruction and the inspection result are in a Json format.
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| CN110672982B (en) * | 2019-11-14 | 2021-08-03 | 广东电网有限责任公司 | Detection method and system for preventing long-term loop closing operation of power distribution network and readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107593A (en) * | 2011-11-09 | 2013-05-15 | 上海市电力公司 | Circulation analysis system and circulation analysis method of complicated power distribution network loop closing operation |
| CN104466945A (en) * | 2014-09-22 | 2015-03-25 | 珠海许继芝电网自动化有限公司 | Method for analyzing loop closing risks based on interconnection switch in power distribution network |
| CN105576660A (en) * | 2016-03-04 | 2016-05-11 | 国网安徽省电力公司宿州供电公司 | Region power distribution network on-line simulation analysis device and system |
| CN106059071A (en) * | 2016-06-15 | 2016-10-26 | 国电南瑞科技股份有限公司 | Distribution network distributed loop closing intelligent anti-misoperation system and implementation method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107593A (en) * | 2011-11-09 | 2013-05-15 | 上海市电力公司 | Circulation analysis system and circulation analysis method of complicated power distribution network loop closing operation |
| CN104466945A (en) * | 2014-09-22 | 2015-03-25 | 珠海许继芝电网自动化有限公司 | Method for analyzing loop closing risks based on interconnection switch in power distribution network |
| CN105576660A (en) * | 2016-03-04 | 2016-05-11 | 国网安徽省电力公司宿州供电公司 | Region power distribution network on-line simulation analysis device and system |
| CN106059071A (en) * | 2016-06-15 | 2016-10-26 | 国电南瑞科技股份有限公司 | Distribution network distributed loop closing intelligent anti-misoperation system and implementation method |
Non-Patent Citations (1)
| Title |
|---|
| 配电网合环倒负荷安全分析系统的开发与研究;宣科等;《电力科学与工程》;20100331;第26卷(第3期);第40-43、48页 * |
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