CN102867079B - Simple method and system for structuring and filing real-time running way of power grid - Google Patents
Simple method and system for structuring and filing real-time running way of power grid Download PDFInfo
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Abstract
The invention discloses a simple method for structuring and filing a real-time running way of a power grid. The simple method comprises a first step of structuring a data template of the power grid based on a latest structure and latest parameters of the power grid, a second step of structuring a data interface communicating with an EMS (Enhanced Message Service) according to CIM/SVG (Common Information Model)/(Scalable Vector Graphics) so as to extract real-time data from the EMS, a third step of developing a real-time running way generation module, a fourth step of structuring an exact real-time database of the power grid, and a fifth step of building connection with BPA (Bonneville Power Administration) server through a BPA interface and establishing contact between an offline BPA and an online EMS to enable the BPA to share the real-time data of the EMS. The system developed by the method can exceed the EMS on the aspect of some functions, and is an expansion and extension of the EMS function. The system established based on the method can be shared by scheduling, planning, biotechnology, design and other relevant departments or professions, and can play greater benefits within a wider range.
Description
Technical field
The present invention relates to a kind of brief method of structure for dispatching of power netwoks and filing electrical network real time operation mode.The invention still further relates to the system of the structure for dispatching of power netwoks and the filing electrical network real time operation mode being exclusively used in described method.
Background technology
The assurance of Real-Time Scheduling is not singly depended in the security of modern power network, depends on the analysis of the method for operation in advance simultaneously.The method of operation need to pay close attention to electrical network now, past and future, this work characteristics determines existing dispatching automation EMS can not meet its multi-faceted job requirement, also need by the support of off-line software.Powernet analysis and calculated off-line two software systems to deposit be the common reality that Present Domestic power system operating mode faces, one of off-line software that BPA Ze Shi method of operation department generally adopts.
Although EMS/SCADA can provide electrical network comprehensively to run real-time working condition, but the electrical network historical data of limited kinds and limited quantity only can be provided for ex-post analysis, the historical data relying on EMS/SCADA to provide can not reappear the electrical network historical manner comprising topology network, thus can not carry out substantial simulation calculation to historical manner, current this kind of simulation calculation needs application off-line software simulating.
Secondly, the real-time data base that EMS advanced applied software is relied on and picture storehouse too huge, be difficult to the flexible demands adapting to method of operation assessment Electric Power Network Planning and prediction electric load aspect, current this kind of analytical calculation also still depends on off-line software.
3rd, the method for operation, except Load flow calculation, static security analysis, also will realize the new target such as Reactive Voltage Management, operation of power networks risk assessment and risk management and control, and these New function EMS is still difficult to be supported.
In a word, domestic power system operating mode department meets the on-line analysis and calculated off-line the work general plan of depositing that work requirements implements, and causes that resource distribution is overlapping, database maintenance workload strengthens, New function exploitation difficulty, needs solution badly.
Summary of the invention
First technical matters to be solved by this invention, is just to provide a kind of brief method building and file electrical network real time operation mode.
Second technical matters to be solved by this invention, be just to provide a kind of be exclusively used in described method structure and the system of filing electrical network real time operation mode.
Method and system of the present invention, avoid resource distribution overlap, the flexible demands of method of operation assessment Electric Power Network Planning and prediction electric load aspect can be adapted to, also can reappear the electrical network historical manner comprising topology network, substantial simulation calculation is carried out to historical manner, and database maintenance workload is less, New function exploitation is easy.
Solve above-mentioned first technical matters, the technical solution used in the present invention is:
Build and file a brief method for electrical network real time operation mode, comprise the following steps:
The first step, according to electrical network newest structure, creation analysis electric network data template:
The structure of data template reflection electrical network and composition, content comprises plant stand structure, device parameter, electrical network topology and load level; Plant stand name in data template is identical with EMS with equipment name, and the duty values such as data template 10kV bus are equal to the whole feeder load sum of this station of EMS 10kV bus; Data template electricity consumption user name claims to add date name, and upgrades with electrical network and upgrade, and while new data template produces, legacy data template is frozen, deposits in data template storehouse and calls for during analysis of history data;
Second step, according to CIM/SVG specification, build the data-interface that communicates with EMS, extract real time data from EMS, for real time operation mode generation provides data source;
3rd step, exploitation real time operation mode generation module:
Real time operation mode generation module enables latest data template, EMS real time data is extracted by real-time interface, state estimator is entered after data prediction, adopt and estimate recognizer detection and Identification bad data again based on the bad data of residual sensitivity matrix, adopt weighted least square algorithm to resolve state estimation, try to achieve electrical network real time operation mode;
The near-realtime data storehouse of the 4th step, structure electrical network:
Near-realtime data storehouse adopts date structure, and dayfile is basic unit of storage; The electrical network Real-time Power Flow solution order that real time operation mode generation module is tried to achieve is stored in dayfile, and deposit data is in same dayfile on the same day, under the dayfile of same month leaves same moon catalogue in, under the moon catalogue in the same year is positioned at catalogue in the same year; Dayfile adopts binary format, is made up of file header and data field two parts; Top of file defines the form of data field and the pointer of data template, and the whole trend solution of the real time operation mode comprising power network topology information is deposited by section order in data field; Under the prerequisite guaranteeing data acquisition quick calling, adopt data compression skill, save near-realtime data library storage space; Dayfile electricity consumption user name claims and date Automatic Combined name;
5th step, to be connected by BPA interface with BPA server, between off-line BPA and online EMS, set up contact, realize BPA enjoying EMS real time data.
Described real time operation mode generation module and every 5 minutes of near-realtime data storehouse upgrade once, day mode arrange upgrade once every day, operation of power networks analysis and economic analysis monthly, year periodic operation, dock with BPA monthly, run per year or irregularly run.
Solve above-mentioned second technical matters, the technical solution used in the present invention is:
A kind of be exclusively used in described method structure and the system of filing electrical network real time operation mode, it is characterized in that: comprise real-time data base, BPA database, PSAS database, near-realtime data storehouse, real-time interface, BPA interface, and real time operation mode generation module and data template, described near-realtime data storehouse comprises security monitoring module, module of consulting the files, day mode module and the moon reporting modules; Described near-realtime data storehouse and PSAS database have to be connected and exchange, described real time operation mode generation module is connected with the real-time data base of dispatch automated system EMS by real-time interface, be connected by the BPA database of BPA interface with off-line BPA system, the output of real time operation mode generation module input data template and the real-time data base that connected by real-time interface, export near-realtime data storehouse to, the external pc user in near-realtime data storehouse.
Described real time operation mode generation module runs once for every 5 minutes, every 5 minutes of near-realtime data storehouse upgrades once, day mode arrange once a day, operation of power networks analysis and economic analysis monthly, year periodic operation, dock with BPA, be monthly, per year run, or irregularly run.
Beneficial effect: method and system of the present invention is sent real time data outside to EMS and carried out analyticity extraction, refine according to carrying out analysis according to strict electrical network theoretical log, finally with the brief form of operation of power networks archives stored in the database built, develop that electrical network quasi real time monitors on this basis, day curve inquiry, trend trend analysis, the function such as comprehensive simulation and reproduction history run mode, operation of power networks statistical study, electrical network economy analysis become possibility.With the inventive method exploitation system some can, more than EMS, be functionally expansion and the extension of EMS function.
The present invention is by the transformation of the small-sized off-line analysis software of existing electrical network and redevelopment, build the integrated analysis platform connecting online EMS and contain off-line BPA, optimization system resource, reduce database maintenance amount, build electrical network near-realtime data storehouse by brief method, preserve operation of power networks archives, with friendly interface and normalization output, help method of operation personnel to break away from uninteresting data processing, concentrate one's energy, in the profound level thinking of power grid security, to realize the qualitative leap of method of operation work efficiency.The system set up according to this method simultaneously for scheduling, planning, raw skill, design and other relevant departments or specialty are shared, can play larger benefit in more wide scope.
Accompanying drawing explanation
Fig. 1 is for building and filing electrical network real time operation mode basic ideas schematic diagram;
Fig. 2 is the real-time generation system schematic diagram of Dongguan power system operating mode that application the inventive method builds.
Embodiment
Embodiment
As shown in Figure 1, as shown in Figure 2, wherein PSAS is the small electrical analysis software that Dongguan electrical network uses at present to the real-time generation system of Dongguan power system operating mode built by the inventive method to the basic ideas of method of the present invention.
The brief method of structure of the present invention and filing electrical network real time operation mode, comprises the following steps:
The first step, according to electrical network newest structure, creation analysis electric network data template:
The structure of data template reflection electrical network and composition, content comprises plant stand structure, device parameter, electrical network topology and load level; Plant stand name in data template is identical with EMS with equipment name, and the duty values such as data template 10kV bus are equal to the whole feeder load sum of this station of EMS 10kV bus; Data template electricity consumption user name claims to add date name, and upgrades with electrical network and upgrade, and while new data template produces, legacy data template is frozen, deposits in data template storehouse and calls for during analysis of history data;
Second step, according to CIM/SVG specification, build the data-interface that communicates with EMS, extract real time data from EMS, for real time operation mode generation provides data source;
3rd step, exploitation real time operation mode generation module:
Real time operation mode generation module enables latest data template, EMS real time data is extracted by real-time interface, state estimator is entered after data prediction, adopt and estimate recognizer detection and Identification bad data again based on the bad data of residual sensitivity matrix, adopt weighted least square algorithm to resolve state estimation, try to achieve electrical network real time operation mode;
The near-realtime data storehouse of the 4th step, structure electrical network:
Near-realtime data storehouse adopts date structure, and dayfile is basic unit of storage; The electrical network Real-time Power Flow solution order that real time operation mode generation module is tried to achieve is stored in dayfile, and deposit data is in same dayfile on the same day, under the dayfile of same month leaves same moon catalogue in, under the moon catalogue in the same year is positioned at catalogue in the same year; Dayfile adopts binary format, is made up of file header and data field two parts; Top of file defines the form of data field and the pointer of data template, and the whole trend solution of the real time operation mode comprising power network topology information is deposited by section order in data field; Under the prerequisite guaranteeing data acquisition quick calling, adopt data compression skill, save near-realtime data library storage space; Dayfile electricity consumption user name claims and date Automatic Combined name;
5th step, to be connected by BPA interface with BPA server, between off-line BPA and online EMS, set up contact, realize BPA enjoying EMS real time data.
Real time operation mode generation module runs once for every 5 minutes, near-realtime data storehouse upgrades once for every 5 minutes, day mode arranges upgrade once every day, operation of power networks analysis and economic analysis monthly, year periodic operation, dock with BPA monthly, run per year or irregularly run.
Be exclusively used in the structure of described method and the system of filing electrical network real time operation mode, comprise real-time data base, BPA database, PSAS database, near-realtime data storehouse, real-time interface, BPA interface, and real time operation mode generation module and data template, near-realtime data storehouse comprises security monitoring module, module of consulting the files, day mode module and the moon reporting modules, near-realtime data storehouse also has to be connected with PSAS database and exchanges, and real time operation mode generation module is connected with dispatch automated system EMS by real-time interface, be connected with off-line BPA system by BPA interface; The real time data that the output of real time operation mode generation module input data template is connected with by real-time interface exports, exports near-realtime data storehouse to, the external pc user in near-realtime data storehouse.
For the annual electric network composition of Dongguan electrical network 2012, table 1 lists EMS and sends real time data outside and take storage space compare through the near-realtime data storehouse that the inventive method generates, the limited function that direct use EMS sends outside achieved by real time data compares with the powerful application function using the electrical network near-realtime data storehouse of the inventive method generation to develop, and illustrates that the inventive method is in data processing and the enormous benefits built in application system.
The electrical network near-realtime data storehouse effect explanation that table 1 builds by the inventive method
Claims (1)
1. build and file a brief method for electrical network real time operation mode, comprise the following steps:
The first step, according to electrical network newest structure, creation analysis electric network data template:
The structure of described data template reflection electrical network and composition, data template comprises plant stand structure, device parameter, electrical network topology and load level; Plant stand name in data template is consistent with EMS with equipment name, and the duty values such as data template 10kV bus are equal to whole feeder load sums of EMS 10kV bus place transformer station; Data template electricity consumption user name claims to add date name, and upgrades with electrical network and upgrade, and while new data template produces, legacy data template is frozen, and legacy data template is stored in data template storehouse and calls for during analysis of history data;
Second step, according to CIM/SVG specification, build the data-interface that communicates with EMS, extract real time data from EMS, for real time operation mode generation provides data source;
3rd step, exploitation real time operation mode generation module:
Described real time operation mode generation module enables latest data template, EMS real time data is extracted by real-time interface, described EMS real time data enters state estimator after data prediction, recognizer goes to detect, identify bad data to adopt the bad data based on residual sensitivity matrix to estimate again, adopt weighted least square algorithm to resolve state estimation, try to achieve electrical network real time operation mode;
The near-realtime data storehouse of the 4th step, structure electrical network:
Described near-realtime data storehouse adopts date structure, and dayfile is basic unit of storage; The electrical network Real-time Power Flow solution order that real time operation mode generation module is tried to achieve is stored in dayfile, and deposit data is in same dayfile on the same day, under the dayfile of same month leaves same moon catalogue in, under the moon catalogue in the same year is positioned at catalogue in the same year; Dayfile adopts binary format, is made up of file header and data field two parts; Top of file defines the form of data field and the pointer of data template, and the whole trend solution of the real time operation mode comprising power network topology information is deposited by section order in data field; Under the prerequisite guaranteeing data acquisition quick calling, adopt data compression method, save near-realtime data library storage space; Dayfile electricity consumption user name claims and date Automatic Combined name;
5th step, described exploitation real time operation mode generation module and BPA server are connected by BPA interface, set up contact, realize BPA enjoying EMS real time data between off-line BPA and online EMS;
Described real time operation mode generation module and every 5 minutes of near-realtime data storehouse upgrade once, day mode arrange upgrade once every day, operation of power networks analysis and economic analysis monthly, year periodic operation, dock with BPA monthly, run per year or irregularly run.
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| CN104463696A (en) * | 2014-11-26 | 2015-03-25 | 国家电网公司 | Power grid operating risk recognition and prevention method and system |
| CN106250465A (en) * | 2016-07-29 | 2016-12-21 | 沈阳华创风能有限公司 | A kind of method and device improving database filing efficiency |
| CN107835025B (en) * | 2017-11-21 | 2021-05-25 | 东北电力大学 | Adaptive compression method and system for historical data of power load |
| CN110687346A (en) * | 2018-07-04 | 2020-01-14 | 国网上海市电力公司 | Method for checking and optimizing power grid voltage abnormity reason data |
| CN109412153A (en) * | 2018-11-09 | 2019-03-01 | 广东电网有限责任公司 | Grid operation mode recognition methods and its system based on electric parameter state estimation |
| CN110555010B (en) * | 2019-09-11 | 2022-04-05 | 中国南方电网有限责任公司 | Power grid real-time operation data storage system |
| CN112100985B (en) * | 2020-09-10 | 2024-05-10 | 贵州电网有限责任公司 | Multi-source data integration, matching, conversion and synthesis method for transverse and longitudinal interactive power grid |
| CN114996223B (en) * | 2022-06-15 | 2023-06-30 | 上海博般数据技术有限公司 | Data interaction method and system among heterogeneous systems and electronic equipment |
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