CN101729342B - Realization method of real-time memory calculation data structure of mixed mobile power system - Google Patents
Realization method of real-time memory calculation data structure of mixed mobile power system Download PDFInfo
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- CN101729342B CN101729342B CN2009101865826A CN200910186582A CN101729342B CN 101729342 B CN101729342 B CN 101729342B CN 2009101865826 A CN2009101865826 A CN 2009101865826A CN 200910186582 A CN200910186582 A CN 200910186582A CN 101729342 B CN101729342 B CN 101729342B
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- 238000004364 calculation method Methods 0.000 title claims abstract description 21
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a realization method of a real-time memory calculation data structure of a mixed mobile power system. In the method, a real-time memory data structure conforming to a specific data format of a power system is generated in a memory of a designated system analysis server through a structural design mode and a memory mapping mode in a network environment of a local area network or a wide area network, aiming at the properties of power system elements; an HTTP protocol and an FTP protocol are utilized to transmit the data and the acquired data to calculation nodes needing to be specifically calculated in the network, wherein, the mixed transmission mode of HTTP and FTP are carried out simultaneously in the application process. In the calculation node, different process modes are adopted on the above mixed transmission mode, thus realizing efficient calculation. The realization method of the invention has low calculation cost and small maintenance work load, can well reflect the interaction of cross-domain power system data, and can be used as an important method for improving operation efficiency of power dispatching automatic systems.
Description
Technical field
The present invention relates to a kind of real-time memory calculation data structure of mixed mobile power system implementation method.
Background technology
As the electric power energy of one of national economic development lifeblood, the security and stability of its state of development, operation and automatically-monitored degree all receive much concern.The quick growth of particularly, electric power system physical complexity and the change of power industry operating mechanism make and guarantee that the power system safety and stability operation faces a severe challenge.And the exploitation and the development of electric power scheduling automatization system (as EMS SCADA/EMS, the DMS of distribution management system, dispatcher's stimulating and training system DTS etc.), be not only the operation electric power system important means of monitoring, analyze, dispatching and managing, also be simultaneously reduce and avoid the electric power system unstability, important assurance that the accident of collapsing, have a power failure on a large scale takes place.
In the existing power dispatch automated system, all dispose the requirement that real-time internal memory database satisfies system's on-line operation on the key node of appointment at present.Usually be to map in the internal memory by the formed mapped file of the corresponding partial data structure of homologous ray relational database to generate for the real-time internal memory database on the specific function server (node), during calculating, institute's system data of getting is from real-time internal memory database in the home server.Fig. 2 has provided a typical electric power scheduling automatization system configuration and real-time internal memory database structure chart.Calculating for some routines of electric power system, as dispatcher's trend, security constraint economic dispatch etc., local real-time data structure on this fixed server (node) can satisfy the requirement of system's on-line operation, but calculate for some large-scale electrical power systems, particularly relate to (as power system voltage stabilization, the transient stability assessment) of distributed parallel calculation requirement, this fixed local real-time data structure exists following shortcoming:
(1) relates to that unit (this locality) calculates, need the more time of cost from the real-time storehouse, read required calculated data, and need carry out the secondary arrangement of data;
(2) relate to the computing node of distributed parallel, all need rebulid corresponding real-time internal memory database on each computing node, workload is big, and can waste very big memory headroom;
(3) the different interactivity of economizing data message between the adjusting system under being unfavorable in the net accent.
Summary of the invention
Purpose of the present invention is exactly at more existing shortcomings in the prior art, and a kind of implementation method of real-time memory calculation data structure of mixed mobile power system is provided.
The implementation method of real-time memory calculation data structure of mixed mobile power system of the present invention is achieved through the following technical solutions:
Step a, under Intranet local area network (LAN) or Internet wan networking environment, build the electric system simulation computing environment that comprises a plurality of computing nodes, i.e. the distributed network environment of forming by the computing node of the system-computed Analysis server that is used for the managing power system-computed that in this local area network (LAN) or wide area network, is disposed and this calculating of participation;
Step b, go up to set up at meeting electric power system specific data form (as PTI at system-computed Analysis server (promptly managing the server of whole system calculation task) based on the Electrical Power System Dynamic security evaluation of transient stability and voltage scleronomic constraint, IEEE, BPA form etc.) real-time data structure;
Step c, adopt structurized design, promptly at the concrete element in the electric power system, as bus, load, generator, circuit, transformer, multiport DC line, zone and other based on equipment of power electronic technology etc., and according to they self distinctive operation characteristic, design corresponding electric attribute, adopt the mode of structure, generate wherein a kind of data structure of force device;
Steps d utilizes the memory-mapped mode to generate the real-time data of specifying electric power system data form (as PTI, IEEE, BPA form etc.) in the internal memory of system-computed Analysis server;
Step e, utilizing HTTP among the communication protocol TCP/IP of standard or File Transfer Protocol that this data structure is sent to together with the data of obtaining needs to carry out specific calculation in Intranet local area network (LAN) described in the step a or the Internet wide area network, as the computing node based on the Electrical Power System Dynamic security evaluation of transient stability and voltage scleronomic constraint;
Step f at the computing node place, presses the data designated structure mapping to local internal memory, and then participates in concrete calculating.
The implementation method of real-time memory calculation data structure of mixed mobile power system of the present invention is on the basis of existing technology, deficiency at the prior art application, utilize network environment, and in conjunction with HTTP, the FTP transmission means becomes traditional unit stationary electric power system real-time data structure into movable type, this method has improved the computational efficiency and the operational efficiency of system, it is low to assess the cost, maintenance workload is little, and electric power system data mutual between can fine embodiment cross-region, simply, set up different region power scheduling control centre information interaction effectively, the particularly auxiliary channel that calculates.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is prior art typical case electric power scheduling automatization system configuration and real-time internal memory database structure chart.
Embodiment
With reference to Fig. 1, the system among Fig. 1 is made up of system-computed Analysis server and some computing nodes.This system need finish the large-scale electrical power system computational analysis that is made of some tasks, and these tasks will be distributed to different computing nodes simultaneously and calculate.
1, be different from traditional real-time internal memory database structure that is applied to electric power scheduling automatization system, in this network environment, at first go up the real-time data structure of setting up at concrete calculating that meets certain data format of electric power system at system-computed Analysis server (or server of similar management whole system calculation task), and adopt structurized design, to a kind of data structure of element wherein, as bus, load, generator, circuit, transformer, the multiport DC line, zone and other are based on the equipment of power electronic technology etc., can represent in the following way
Typedef?struct_element_data_{
int?elementid；
float?capacity；
char?ckt[4]；
……
}ELEMENTDATA；
Utilize the memory-mapped mode in the internal memory of the network analysis server of an appointment, to generate, can realize in the following way one of them element.
Typedef?CMap<[DATATYPE]，[DATATYPE]，ELEMENTDATA*ELEMENTDATA*&>CMap[DataType]ElementStruct；
For a complete specific calculation datarams structure, shine upon the mode that adds structure below utilizing and in internal memory, generate.Generative process can be created a thread specially and realize
Typedef?struct_specific_calculate_data_struct_{
CMap[DataType]ElementStruct_1；
CMap[DataType]ElementStruct_2；
CMap[DataType]ElementStruct_3；
……
}CALDATA；
2, utilize HTTP or File Transfer Protocol among the communication protocol TCP/IP of standard that this data structure is sent to the computing node that needs to carry out specific calculation in the network together with the data of obtaining.The selection of transmission means is selected according to the content change of calculated data: if the calculated data content is dynamic change, then adopt first memory-mapped HTTP transmission means again; If calculated data is fixed, then adopt file FTP transmission means memory-mapped again.According to the practical operation situation of electric power system, we find: employed calculated data can be divided into two classes in a specific computational process, and promptly a class is that data content only generates once, can frequently not change; Another kind of is dynamically to generate, and calculates content and changes frequent.For this reason, the present invention has adopted the mode of mixed transport, promptly adopts the FTP transmission for the calculation data structure of frequently not changing with file mode, then does memory-mapped earlier for the calculation data structure of dynamic generation and adopts the HTTP transmission means to computing node again.This mixed transport mode is carried out in application process simultaneously.
3,, adopt following processing mode respectively for above-mentioned mixed transport mode at the computing node place: (i) file that obtains by FTP, press the data designated structure mapping to local internal memory, and then participate in concrete calculating; (ii) the data that transmitted by HTTP are directly shone upon with specific data structure in local internal memory, participate in concrete calculating then.
Claims (2)
1. the implementation method of a real-time memory calculation data structure of mixed mobile power system, it is characterized in that: it may further comprise the steps:
Step a, under Intranet local area network (LAN) or Internet wan networking environment, build the electric system simulation computing environment that comprises a plurality of computing nodes, i.e. the distributed network environment of forming by the computing node of the system-computed Analysis server that is used for the managing power system-computed that in this local area network (LAN) or wide area network, is disposed and this calculating of participation;
Step b sets up on the system-computed Analysis server at the real-time data structure that meets electric power system specific data form PTI form or IEEE form or BPA form based on the Electrical Power System Dynamic security evaluation of transient stability and voltage scleronomic constraint;
Step c at the concrete element in the electric power system, designs corresponding electric attribute, adopts the mode of structure, generates wherein a kind of data structure of force device;
Steps d utilizes the memory-mapped mode to generate the real-time data of specifying electric power system data form PTI form or IEEE form or BPA form in the internal memory of system-computed Analysis server;
Step e utilizes HTTP among the communication protocol TCP/IP of standard or File Transfer Protocol the data that possess the described data structure of step b that generate in the steps d to be sent to the computing node that needs in Intranet local area network (LAN) described in the step a or the Internet wide area network to carry out based on the Electrical Power System Dynamic security evaluation of transient stability and voltage scleronomic constraint;
Step f at the computing node place, presses the data designated structure mapping to local internal memory, and then participates in concrete calculating.
2. the implementation method of real-time memory calculation data structure of mixed mobile power system according to claim 1, it is characterized in that: among the step c, described force device data structure comprises the data structure of bus, load, generator, transformer, multiport DC line.
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| CN101986331B (en) * | 2010-10-25 | 2013-11-13 | 中国电力科学研究院 | Power grid simulation calculation cooperative work system |
| CN101986649B (en) * | 2010-11-29 | 2014-01-15 | 深圳天源迪科信息技术股份有限公司 | Shared data center used in telecommunication industry billing system |
| CN102254024A (en) * | 2011-07-27 | 2011-11-23 | 国网信息通信有限公司 | Mass data processing system and method |
| CN110727647B (en) * | 2019-10-21 | 2022-07-05 | 中国民航信息网络股份有限公司 | Freight rate data storage method and device |
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