CN101867192B - Reactive compensation control simulation test system - Google Patents
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- 238000004891 communication Methods 0.000 claims abstract description 20
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
The invention discloses a reactive compensation control simulation test system. A real-time simulation system is mainly suitable for the detailed researches on the transient state process and the dynamic process of the trunk network and the local system of large power systems and the test researches on physical devices, but cannot be used for verifying or optimizing the control strategies for a voltage reactive control device in a single system or a regional system. The technical scheme is that the reactive compensation control simulation test system is characterized in that the reactive compensation control simulation test system comprises a task scheduling management center, a man-machine interface, a data interface service module, a power flow calculation module, a communication interface service module, a controller power supply and a PLC driver module. The system can be used for testing a single voltage reactive control device or a plurality of electrically connected voltage reactive control devices and verifying or optimizing the control strategies for the voltage reactive control device.
Description
Technical field
The present invention relates to the electric system simulation field, specifically a kind of reactive compensation control simulation test system.
Background technology
Electric system simulation is to set up model according to practical power systems, thereby utilizes model to study the work behavior and the characteristic of electric power system, is the important tool of electric power system experimental study, planning and designing and management and running.Correct selection electric power system model and parameter are the bases of electric system simulation.A large amount of electric power system engineering research and accident emulation show that model and parameter have significant impact to electric system simulation precision and confidence level.
With regard to present technical merit, the scale of Power System Off-line emulation is unrestricted basically, can more intactly simulate large-scale electrical power system, is applicable to complicated transient state and the dynamic process of research large power system.But the calculated off-line program can not insert the actual physical device carries out emulation, need Mathematical Modeling accurately for the simulation of novel electric power system physical device, and the acquisition of Mathematical Modeling needs also l-G simulation test to verify except that theory analysis.And the characteristics of power system real-time simulation system are simulation electric power system real-time processes, can unify to simulate electromagnetic transient, electromechanical transient process and the follow-up dynamic process of electric power system, can insert the actual physical device and carry out analogue test.But because the requirement of emulation real-time and the restriction of analogue system hardware size, generally real-time emulation system the electric power system scale that can simulate always limited.Real-time emulation system mainly is applicable to backbone network and the transient state of local system and the experimental study of dynamic process and physical unit that studies large power system in great detail, but can't verify or optimize the voltage and reactive power control system control strategy in single or the district system.
Summary of the invention
Technical problem to be solved by this invention is to overcome the defective that above-mentioned prior art exists; A kind of reactive compensation control simulation test system is provided; Be used for single voltage and reactive power control system or several have the test of the voltage and reactive power control system that is electrically connected, with checking or optimize the control strategy of voltage and reactive power control system.
For this reason; The technical scheme that the present invention adopts is following: reactive compensation control simulation test system; It is characterized in that it comprises task scheduling administrative center, man-machine interface, data-interface service module, trend computing module, communication interface service module, charged power and PLC (abbreviation of input and output terminal case) driver module
Task scheduling administrative center is used for being responsible for the dispatching management of other each several parts, keeps watch on the ruuning situation of each several part, and the normal operation of whole system is safeguarded in the request of response each several part;
The data-interface service module; Be used to manage the related data of whole system,, respond the reading and writing data request of other each several parts for other each several parts provide the unified data interface service; Guarantee that each several part can correctly obtain data efficiently; Other each several part reads and writes data and all passes through this part completion, so both can realize the uniqueness of data source, and the interface that also can keep other each several part to read and write data is unified; Make things convenient for further expanding of system; The data source that this part is mainly managed comprise flow data file, real-time data base, historical data base and and the second-time development service module, utilize the second-time development service module can develop drawing tool, with drawing tool can the draw geographical winding diagram (abbreviation geographical map) and the station wiring diagram (being called for short the station figure of factory) of the electrical network of studying;
Man-machine interface is used for being responsible for the graphical demonstration of data, and the user operates response, data query, and the derivation of Excel form, and man-machine interface also comprises the dynamic display module of element, test supervision submodule and clock module;
The trend computing module is used for electric network swim and calculates, and reads trend through the data-interface service module and calculates desired data, then result of calculation is write file or corresponding database through the data-interface service module;
The communication interface service module is used for relevant information is issued to voltage and reactive power control system (voltage and reactive power control system abbreviates VQC as), receives the return value of VQC then, is transmitted to the data-interface service module, carries out the packing and the parsing of data;
Charged power is used for converting relevant information to electric parameters and sends voltage and reactive power control system to be tested to;
The PLC driver module is used for converting relevant information to switching value and sends voltage and reactive power control system to be tested to.
Described man-machine interface, data-interface service module, trend computing module and communication interface service module are accomplished through a computing platform; The main frame of this computing platform is an industrial PC; Be furnished with Ethernet, USB and RS232 interface, industrial PC connects charged power and PLC driver module respectively through Ethernet switch.
The present invention exports to charged power with the information such as voltage that computing platform calculates, and suitable testing power supply is provided for the test of VQC equipment; And the status data of electrical network related elements exported to VQC equipment; With the control results acquisition of VQC equipment and send computing platform to, computing platform is made corresponding feedback according to the action command that returns, thereby forms a complete closed loop then.
Major function of the present invention is following:
(1) constantly automatic or manual changes electric network composition and parameter, the trend of repeated calculation electrical network;
(2) according to flow data, draw geographical winding diagram, station wiring diagram, show necessary, commonly used data message;
(3) in station wiring diagram, through the closure of operation bus connection switch, can change the structure of electrical network, similarly, also can control the switching of idle control appliance;
(4) in the station figure of factory, can double-click the capacitor group can associated configuration external analog signal source (voltage, electric current, phase place etc.), switching value signal contact etc., is used to export analog signals and gathers switching value signal etc.;
(5) trend is calculated and can be carried out communication with VQC or soft VQC, according to VQC or soft VQC return state repeated calculation trend;
(6) in the process of trend repeated calculation, on geographical winding diagram or station wiring diagram, can show computing mode information in time;
(7) flexible, practical statistical query function can the query display user appointed information, writes down corresponding VQC the result of the action under the various data modes, and can export to the Excel form;
(8) system's playback function: when providing control strategy for the VQC equipment in many power stations; System should be able to preserve current network topology, electrical network parameter and load data, generator output level, information such as the load tap changer position of carrying and the idle control appliance amount of putting into operation are arranged, so that behind the control strategy of carrying out a certain VQC equipment, can carry out system's playback;
(9) in electrical network, exist under the situation of a plurality of VQC, the VQC of maskable appointment makes it not participate in to regulate; Also can specify the VQC assembled scheme of participating in adjusting;
(10) can edit time sequencing and the combinational logic sequence of movement that VQC moves;
(11) supporting the user to edit increases different types of VQC communication protocol, can adopt dynamic link library (.DLL file) mode or other modes.
The present invention can carry out good expansion through the software section of computing platform and hardware communication interface, can satisfy the demand of bigger system scale in the future; The software systems calculated capacity is unrestricted with the access semaphore; Maximum analog amount output channel number: 50; Maximum number amount output/input channel number: 196 (based on the numbers of the I/O passage of PLC).
Below in conjunction with Figure of description and embodiment the present invention is described further.
Description of drawings
Fig. 1 is the block diagram of system of the present invention.
Fig. 2 is a typical operation flow chart of the present invention.
Embodiment
Reactive compensation control simulation test system as shown in Figure 1, it is made up of task scheduling administrative center, man-machine interface, data-interface service module, trend computing module and communication interface service module.
Task scheduling administrative center is used for being responsible for the dispatching management of other each several parts, keeps watch on the ruuning situation of each several part, the request of response each several part.
The data-interface service module is used to manage flow data file, real-time data base, historical data base and the second-time development service module of whole system, for other each several parts provide the unified data interface service, responds the reading and writing data request of other each several parts.
Man-machine interface is used for being responsible for the graphical demonstration of data, and the user operates response, data query, and the derivation of Excel form, and man-machine interface comprises the dynamic display module of element, test supervision submodule and clock module.
The trend computing module is used for electric network swim and calculates, and reads trend through the data-interface service module and calculates desired data, then result of calculation is write file or database through the data-interface service module.
The communication interface service module is used for relevant information is issued to voltage and reactive power control system, receives the return value of voltage and reactive power control system then, is transmitted to the data-interface service module, carries out the packing and the parsing of data.
Man-machine interface, data-interface service module, trend computing module and communication interface service module are accomplished through computing platform; The main frame of this computing platform is an industrial PC; Be furnished with Ethernet, USB and RS232 interface, industrial PC connects charged power and PLC driver module respectively through Ethernet switch.
The typical operation flow process of using this emulation test system is as shown in Figure 2:
Through resolving the flow data file, use the drawing tool of second-time development service Development of Module, the geographical winding diagram and the station wiring diagram of the electrical network of studying that can draw.In geographical winding diagram, can clearly recognize the grid structure and the running status of electrical network; In station wiring diagram; Drawn the various device in the factory station; Comprise bus, transformer, circuit breaker, rest capacitance device, reactor etc., convenient connection and the ruuning situation of understanding each electric network element in the factory station can be operated the electrical network related elements simultaneously easily.According to research and content measurement, the relevant parameter of VQC is set, call the trend computing module then and calculate electric network swim.If calculation of tidal current satisfies the condition of convergence, then show final result of calculation, stop cycle calculations; If calculation of tidal current does not satisfy the condition of convergence, then show calculated case when front-wheel.Whether the user can be arranged on and allow the user to operate the electrical network related elements in each loop calculation, such as switching of capacitor etc.Calculation of tidal current sends to charged power through the Modbus driver module and further handles, and is issued to VQC then, realizes the control to voltage power-less; The status data of electrical network related elements is exported to voltage and reactive power control system through the PLC driver module.Action command after voltage and reactive power control system is controlled it returns to the trend computing module through the PLC driver module, carries out the trend of next round and calculates and voltage power-less control.
Except that this typical operation flow process; Other operational circumstances also within the native system process range, such as: geographical winding diagram and station wiring diagram file based on before just finishing operate, through graphing input electrical network parameter, the VQC closed-loop control does not restrain but surpass maximum permission cycle-index, VQC and flow calculation program and accomplish The whole calculations process etc. automatically.
Computing platform and charged power connect, and through charged power output analog quantity, consider that charged power is furnished with the RS232 interface, and the communication of computing platform and charged power can be adopted the mode of Ethernet.
The MODBUS agreement is adopted in communication between main frame and charged power.
Computing platform need give VQC as input through the status data of hardware device PLC output electrical network related elements (like circuit breaker), and the output of electrical network related elements action command is accomplished through PLC.
VQC controls the user interface of the acquisition function of consequential signal through the definition standard, and the communication of reality is realized that code is encapsulated into the form of DLL, allows the user to develop new DLL voluntarily to satisfy the more demand of user.Following two kinds communication modes is arranged: a) directly gather, use the input channel of PLC to realize; B) adopt certain communication protocol to transmit remote motion signal, IEC60870-5-101 stipulations for example, VQC has RS232 or RS485 interface, if adopt the RS232 interface, can be connected with computing platform through the protocol converter of a RS232/ Ethernet.
The IEC60870-5-101 agreement is adopted in communication between main frame and charged power, also can support other communications protocol in the future, as: 60870-5-104,61850.
The requirement of charged power of the present invention is following:
(1) alternating voltage: amount limit: 100V, 220V, 400V; Adjustable range: amount limit * (0～130) %; Accuracy: 0.05 grade; Stability: 0.03%/3min; The distortion factor :≤0.2% (linear non-capacitive load); Output loading capacity: every phase 20VA (exporting 120% o'clock);
(2) alternating current: amount limit: 1A, 5A, 10A; Adjustable range: 1A, 5A measures limit * (0～140) %; 10A measures limit * (0～120) %; Accuracy: 0.05 grade; Stability: 0.03%/3min; The distortion factor :≤0.2% (linear load); Output loading capacity: 20VA (exporting 120% o'clock);
(3) phase place: adjustable range: 0 °～360 °; Resolution: 0.01 °; Accuracy: 0.05 °;
(4) telemechanical stipulations: RS232 (join RS232 outward and change Ethernet interface) adopts the MODBUS stipulations.
Claims (4)
1. reactive compensation control simulation test system is characterized in that it comprises task scheduling administrative center, man-machine interface, data-interface service module, trend computing module, communication interface service module, charged power and PLC driver module,
Task scheduling administrative center is used for being responsible for the dispatching management of other each several parts, keeps watch on the ruuning situation of each several part, the request of response each several part;
The data-interface service module is used to manage the related data of whole system, for other each several parts provide the unified data interface service, responds the reading and writing data request of other each several parts;
Man-machine interface is used for being responsible for the graphical demonstration of data, and the user operates response, data query, and the derivation of Excel form;
The trend computing module is used for electric network swim and calculates, and reads trend through the data-interface service module and calculates desired data, then result of calculation is write file or database through the data-interface service module;
The communication interface service module is used for relevant information is issued to voltage and reactive power control system to be tested, receives the return value of voltage and reactive power control system then, is transmitted to the data-interface service module, carries out the packing and the parsing of data;
Charged power is used for converting relevant information to electric parameters and sends voltage and reactive power control system to be tested to;
The PLC driver module is used for converting relevant information to switching value and sends voltage and reactive power control system to be tested to;
The operating process of using native system is following: through resolving flow data, use the drawing tool of second-time development service Development of Module, the geographical winding diagram and the station wiring diagram of the electrical network of studying that draws; According to research and content measurement, the relevant parameter of voltage and reactive power control system is set, calculate electric network swim with the trend computing module then, if calculation of tidal current satisfies the condition of convergence, then show final result of calculation, stop cycle calculations; If calculation of tidal current does not satisfy the condition of convergence; Then show calculated case when front-wheel; Calculation of tidal current sends to charged power through the Modbus driver module and further handles; Be issued to voltage and reactive power control system then, realize the control to voltage power-less, the status data of electrical network related elements is exported to voltage and reactive power control system through the PLC driver module; Action command after voltage and reactive power control system is controlled it returns to the trend computing module through the PLC driver module, carries out the trend of next round and calculates and voltage power-less control.
2. reactive compensation control simulation test system according to claim 1; It is characterized in that described man-machine interface, data-interface service module, trend computing module and communication interface service module are through computing platform completion; The main frame of this computing platform is an industrial PC; Be furnished with Ethernet, USB and RS232 interface, industrial PC connects charged power and PLC driver module respectively through Ethernet switch.
3. reactive compensation control simulation test system according to claim 1 is characterized in that the data of described data-interface service module management comprise flow data file, real-time data base, historical data base and second-time development service module.
4. reactive compensation control simulation test system according to claim 3 is characterized in that described man-machine interface also comprises the dynamic display module of element, test supervision submodule and clock module.
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| CN102035210B (en) * | 2011-01-05 | 2013-09-11 | 河北省电力公司电力科学研究院 | Relaxative-constraint powerless equipment optimization method for power system |
| CN102664399A (en) * | 2012-04-09 | 2012-09-12 | 华北电力大学 | Establishment method of RTDS-EMS (real time digital simulator-energy management system) system-level closed-loop control experiment simulation platform |
| CN102636997A (en) * | 2012-05-13 | 2012-08-15 | 马玉春 | Simulation method for analog input and switch output module |
| CN103280814B (en) * | 2013-03-26 | 2016-04-20 | 南京南瑞集团公司 | A kind of wind power plant reactive voltage complex control system and method |
| CN104391196A (en) * | 2014-11-24 | 2015-03-04 | 武汉大学 | Function and performance detection and inspection method and system of dynamic compensation device of smart power grid |
| CN104579165B (en) * | 2015-01-22 | 2018-07-13 | 国家电网公司 | A kind of on-the-spot test method of photovoltaic plant dynamic reactive response performance |
| CN109245110A (en) * | 2018-11-07 | 2019-01-18 | 国家电网有限公司 | A kind of distribution network voltage rich in small power station optimizes and revises method |
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| CN101252281A (en) * | 2008-02-28 | 2008-08-27 | 国电南瑞科技股份有限公司 | Method and system for testing electric voltage reactive-load integrated control functions |
| CN101364738A (en) * | 2008-08-15 | 2009-02-11 | 国电南瑞科技股份有限公司 | Tracing and simulating test method for voltage reactive integrated control system |
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| CN101252281A (en) * | 2008-02-28 | 2008-08-27 | 国电南瑞科技股份有限公司 | Method and system for testing electric voltage reactive-load integrated control functions |
| CN101364738A (en) * | 2008-08-15 | 2009-02-11 | 国电南瑞科技股份有限公司 | Tracing and simulating test method for voltage reactive integrated control system |
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