CN110690845A - Distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system - Google Patents
Distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system Download PDFInfo
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- CN110690845A CN110690845A CN201910841063.2A CN201910841063A CN110690845A CN 110690845 A CN110690845 A CN 110690845A CN 201910841063 A CN201910841063 A CN 201910841063A CN 110690845 A CN110690845 A CN 110690845A
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- 238000004088 simulation Methods 0.000 title claims abstract description 81
- 238000010248 power generation Methods 0.000 title claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 19
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- 230000003993 interaction Effects 0.000 claims description 4
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- 230000006978 adaptation Effects 0.000 claims 1
- 230000000295 complement effect Effects 0.000 abstract description 11
- 238000011160 research Methods 0.000 abstract description 7
- 238000005457 optimization Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000011056 performance test Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to a distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system which comprises a real-time digital simulator, an interface board card, a communication board card, a real-time simulation model, a level adapter board and a distributed photovoltaic and cascade small hydropower station energy manager, wherein the real-time simulation model, the interface board card and the communication board card are positioned in the real-time digital simulator, the distributed photovoltaic and cascade small hydropower station energy manager is connected with the interface board card through the level adapter board, and the distributed photovoltaic and cascade small hydropower station energy manager is connected with the communication board card. The invention can deeply research the capacity optimization configuration problem, the system operation characteristic and system stability problem, and the system joint operation control and intelligent scheduling problem of the distributed photovoltaic and cascade small hydropower complementary system.
Description
Technical Field
The invention belongs to the technical field of real-time simulation, and relates to a real-time simulation technology of a distributed photovoltaic and cascade small hydropower station combined power generation system.
Background
In recent years, on one hand, with the vigorous development of renewable energy power generation in China, the industries of cascade small hydropower, distributed photovoltaic power generation and the like are developed more and more rapidly. On the other hand, the problem of 'abandoning water and light and abandoning wind' of renewable energy sources in China is still outstanding. The comprehensive promotion of the construction of distributed photovoltaic power generation and the promotion of comprehensive development of new energy power with multi-energy complementation and collaborative optimization are important measures for solving the bottleneck of single renewable energy power generation in China. The combined power generation system composed of the distributed photovoltaic power station and the cascade small hydropower stations improves the problems of intermittent output, volatility and randomness of the distributed photovoltaic power station by utilizing the characteristics of flexible starting and outstanding peak regulation capacity of the hydropower stations through the complementary characteristics of light resources and water resources, and becomes a powerful measure for promoting the application of the distributed photovoltaic power station and the cascade small hydropower stations.
So far, real-time digital simulation technology has been widely applied to power systems, wherein a real-time digital simulator RTDS has been widely accepted and applied at home and abroad as a real-time simulation device specially designed for studying electromagnetic transient phenomena in power systems.
By analyzing the prior art, on one hand, the prior art focuses on real-time simulation research on individual hydroelectric generating sets or distributed photovoltaic power stations. The invention patent with publication number CN108255069A discloses a power system-hydroelectric generating set combined simulation device and method, which realize real-time simulation of a power system of a large-scale hydroelectric generating set based on RTDS. The invention patent with the publication number of CN106374832A discloses a photovoltaic set simulation test platform based on RTDS, and a performance test of a controller is developed on a photovoltaic set-RTDS hardware-in-the-loop test platform. On the other hand, the prior art focuses on research on a multi-power-supply scheduling method of a water-light combined power station. The invention patent with publication number CN104714524B describes a combined operation system and operation method of photovoltaic power station and hydropower station. The invention patent with the publication number of CN105048516A discloses a wind, light, water and fire multi-source complementary optimization scheduling method.
The prior art lacks of application of establishing a distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system by using a real-time simulation method. Through the application of the real-time simulation system, on one hand, various basic researches can be developed, including the real-time simulation analysis of the capacity optimization configuration problem of the distributed photovoltaic and cascade small hydropower station complementary system, the system operation characteristic and system stability problem, the system joint operation control and intelligent scheduling problem and the like, and the deep test can be also performed on the performance of the distributed photovoltaic and cascade small hydropower station energy management device, so that the real-time simulation system has strong research and application values.
Disclosure of Invention
The real-time simulation model of the power system concerned by the user is built through the RTDS, or the RTDS and the actual controller form a hardware-in-loop platform, so that the tested system can be tested in all aspects and in the system, and the system testing method has the outstanding advantages that the testing can be carried out repeatedly, the working condition can be simulated at will, the testing efficiency is high, the testing cost is low, and the like.
The invention is realized by the following technical scheme:
the utility model provides a distributed photovoltaic and step small hydropower station cogeneration real-time simulation system, includes real-time digital simulation appearance, interface integrated circuit board, communication integrated circuit board, real-time simulation model, level adapter plate and distributed photovoltaic and step small hydropower station energy management ware, real-time simulation model, interface integrated circuit board, communication integrated circuit board are located real-time digital simulation appearance, distributed photovoltaic and step small hydropower station energy management ware pass through the level adapter plate and link to each other with the interface integrated circuit board, distributed photovoltaic and step small hydropower station energy management ware link to each other with the communication integrated circuit board.
Further, the real-time simulation model comprises a distributed photovoltaic real-time simulation model, a cascade small hydropower station real-time simulation model and a power grid and load real-time simulation model, and the real-time simulation model is built and operated in the real-time digital simulator.
Further, the distributed photovoltaic real-time simulation model is composed of a plurality of photovoltaic module real-time simulation models in an arrangement manner, and the photovoltaic module real-time simulation model comprises: the photovoltaic array comprises a distributed photovoltaic array, a DC/AC converter and a controller, wherein the distributed photovoltaic array is composed of a plurality of solar panels.
Furthermore, the cascade small hydropower station real-time simulation model is formed by arranging a plurality of hydroelectric generating set real-time simulation models, and the hydroelectric generating set real-time simulation model comprises: a diversion system model, a water turbine model, a generator model and a hydroelectric generation controller model.
Further, the power grid and load real-time simulation model comprises a transformer, a power transmission line, a power grid and a load.
Further, the interface board card comprises an analog input board card GTAI, an analog output board card GTAO, a digital input board card GTDI and a digital output board card GTDO.
Further, the communication board card is a GTNETx2 communication board card, a 104 protocol/Modbus protocol/DNP 3 protocol interface is provided, and data communication interaction between the distributed photovoltaic and cascade small hydropower energy management device and each real-time simulation model running in the real-time digital simulator is realized. Each GTNETx2 communications board only supports one protocol when operating.
Specifically, the data of the communication interaction includes: the method comprises the steps that a distributed photovoltaic and cascade small hydropower station energy manager simulates an expected power generation set value of each photovoltaic module real-time simulation model in a distributed photovoltaic real-time simulation model issued by a power grid, an expected power generation set value of each hydroelectric generating set real-time simulation model in a cascade small hydropower station real-time simulation model, and actual power generation and operation condition parameters fed back by each real-time simulation model are included.
And a control signal of the distributed photovoltaic and cascade small hydropower energy manager is connected to the level adapter plate, and a signal obtained after level conversion and matching is connected with the GTAI/GTAO/GTDI/GTDO interface board card, so that the distributed photovoltaic and cascade small hydropower energy manager and each real-time simulation model operating in a real-time digital simulator (RTDS) can interact analog quantity and digital quantity parameters. Specifically, the GTAI/GTAO/GTDI/GTDO signals needing to be connected are determined according to necessary parameters required by the distributed photovoltaic and cascade small hydropower energy manager for completing the control function and user test requirements.
The distributed photovoltaic and cascade small hydropower station energy management device forms a hardware-in-the-loop platform through the level adapter plate, the interface, the communication board card and the real-time simulator RTDS, namely, the distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system is formed, and a series of basic research and controller performance test can be developed on the platform.
The invention has the beneficial effects that:
based on a distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system, on one hand, the capacity optimization configuration problem, the system operation characteristic and system stability problem and the system combined operation control and intelligent scheduling problem of the distributed photovoltaic and cascade small hydropower station complementary system can be deeply researched. On the other hand, performance tests of the distributed photovoltaic and cascade small hydropower energy managers can be developed, a multi-energy complementary scheduling algorithm of the distributed photovoltaic and cascade small hydropower energy managers is tested and optimized, product research and development test efficiency is accelerated and improved, and research and development test cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description, wherein:
the noun explains: RTDS is known as Real Time Digital Simulator (Real Time Digital Simulator).
Firstly, a real-time simulation model of the target distributed photovoltaic and cascade small hydropower station combined power generation system is established according to the following steps.
Firstly, determining the number n of photovoltaic modules shown in figure 1 by the topology of an actual distributed photovoltaic and cascade small hydropower complementary system, and establishing n photovoltaic module real-time simulation models according to the existing mature modeling method, wherein each photovoltaic module real-time simulation model comprises a distributed photovoltaic array, a DC/AC converter and a controller.
And secondly, determining the number m of the hydroelectric generating sets shown in the figure 1 by the actual distributed photovoltaic and cascade small hydropower complementary system topology, and establishing m hydroelectric generating set real-time simulation models according to the existing mature modeling method, wherein each hydroelectric generating set real-time simulation model comprises a diversion system model, a water turbine model, a generator model and a hydroelectric generation controller model.
And thirdly, determining parameters of the transformer, the transmission line, the power grid and the load according to the actual distributed photovoltaic and cascade small hydropower complementary system topology, so as to establish the real-time simulation model of the power grid and the load shown in the figure 1.
And fourthly, according to local hydrology and illumination data, giving illumination resource data required by n photovoltaic module real-time simulation models in the distributed photovoltaic real-time simulation model and hydrology data required by m hydroelectric generating set real-time simulation models in the stepped small hydropower real-time simulation model in the RTDS.
Secondly, performing hardware-in-loop connection on a distributed photovoltaic and cascade small hydropower station energy manager and an RTDS of the distributed photovoltaic and cascade small hydropower station combined power generation system according to the following steps.
Firstly, as shown in fig. 1, a control signal line required by the distributed photovoltaic and cascade small hydropower energy manager is connected to a level adapter plate, and a GTAI/GTAO/GTDI/GTDO interface board card is connected to the signal line matched by the level adapter plate, so as to establish a hardware channel for exchanging analog quantity and digital quantity between the distributed photovoltaic and cascade small hydropower energy manager and a real-time simulation model. If the level of the control signal line is consistent with the level range of the interface board card of the RTDS, the control signal line can be directly accessed to the GTAI/GTAO/GTDI/GTDO interface board card for connection.
And secondly, as shown in fig. 1, providing a common 104 protocol/Modbus protocol/DNP 3 protocol interface by using a GTNETx2 communication board, connecting the distributed photovoltaic and cascade small hydropower energy manager to the GTNETx2 communication board, and realizing data interaction between the distributed photovoltaic and cascade small hydropower energy manager and the real-time simulation model in a network communication mode.
And then, forming a distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system through all the steps. In the RTDS, a series of tests can be developed on the real-time simulation system by modifying illumination resources, hydrological resources, distributed photovoltaic and cascade small hydropower models, power grid parameters and the like.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the real-time simulation technology is adopted, so the real-time simulation system can carry out all-around and systematic test on the tested system, and has the outstanding advantages of repeatable test, arbitrarily simulated working conditions, high test efficiency, low test cost and the like.
Secondly, on the platform, the capacity optimization configuration problem, the system operation characteristic and system stability problem and the system joint operation control and intelligent scheduling problem of the distributed photovoltaic and cascade small hydropower station complementary system can be deeply researched, the performance test of the distributed photovoltaic and cascade small hydropower station energy manager, the multi-energy complementary scheduling algorithm of the distributed photovoltaic and cascade small hydropower station energy manager and the like can be tested and optimized, and the platform is greatly helpful for theoretical research and technical product realization.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The utility model provides a real-time simulation system of distributed photovoltaic and step small hydropower station combined power generation which characterized in that: the distributed photovoltaic and cascade small hydropower energy management device is connected with the interface board card through the level adaptation board, and the distributed photovoltaic and cascade small hydropower energy management device is connected with the communication board card.
2. The distributed photovoltaic and cascaded small hydropower station combined power generation real-time simulation system as claimed in claim 1, wherein the real-time simulation model comprises a distributed photovoltaic real-time simulation model, a cascaded small hydropower station real-time simulation model and a power grid and load real-time simulation model, and the real-time simulation model is built and operated in a real-time digital simulator.
3. The distributed photovoltaic and cascaded small hydropower combined power generation real-time simulation system as claimed in claim 2, wherein the distributed photovoltaic real-time simulation model is composed of a plurality of photovoltaic module real-time simulation models in an arrangement, and the photovoltaic module real-time simulation model comprises: the photovoltaic array comprises a distributed photovoltaic array, a DC/AC converter and a controller, wherein the distributed photovoltaic array is composed of a plurality of solar panels.
4. The distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system as claimed in claim 2, wherein the cascade small hydropower station real-time simulation model is composed of a plurality of hydroelectric generating set real-time simulation models in an arrangement mode, and the hydroelectric generating set real-time simulation model comprises: a diversion system model, a water turbine model, a generator model and a hydroelectric generation controller model.
5. The distributed photovoltaic and cascaded small hydropower station combined power generation real-time simulation system of claim 2, wherein the power grid and load real-time simulation model comprises a transformer, a power transmission line, a power grid and a load.
6. The distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system of claim 1, which is characterized in that: the interface board card comprises an analog input board card GTAI, an analog output board card GTAO, a digital input board card GTDI and a digital output board card GTDO.
7. The distributed photovoltaic and cascade small hydropower station combined power generation real-time simulation system as claimed in claim 1, wherein the communication board card is a GTNETx2 communication board card, and a 104 protocol/Modbus protocol/DNP 3 protocol interface is provided, so that data communication interaction between the distributed photovoltaic and cascade small hydropower station energy manager and each real-time simulation model running in the real-time digital simulator is realized.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN103809465A (en) * | 2014-02-27 | 2014-05-21 | 华北电力大学 | Simulation machine of thermal power generating unit and hydroelectric power generating unit and communication interface of real time digital simulator (RTDS) |
| CN109066771A (en) * | 2018-07-26 | 2018-12-21 | 许继集团有限公司 | A kind of the virtual synchronous machine simulator and new energy power station of new energy power station |
| CN109698525A (en) * | 2019-02-21 | 2019-04-30 | 三峡大学 | A kind of cascade hydropower and new energy combined operating model of data-driven |
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- 2019-09-06 CN CN201910841063.2A patent/CN110690845A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009141651A2 (en) * | 2008-05-21 | 2009-11-26 | Poweroasis Ltd | Supervisory system controller for use with a renewable energy powered radio telecommunications site |
| CN103809465A (en) * | 2014-02-27 | 2014-05-21 | 华北电力大学 | Simulation machine of thermal power generating unit and hydroelectric power generating unit and communication interface of real time digital simulator (RTDS) |
| CN109066771A (en) * | 2018-07-26 | 2018-12-21 | 许继集团有限公司 | A kind of the virtual synchronous machine simulator and new energy power station of new energy power station |
| CN109698525A (en) * | 2019-02-21 | 2019-04-30 | 三峡大学 | A kind of cascade hydropower and new energy combined operating model of data-driven |
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