CN207148558U - Speed regulation control simulation system of hydroelectric generating set - Google Patents
Speed regulation control simulation system of hydroelectric generating set Download PDFInfo
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- CN207148558U CN207148558U CN201720738568.2U CN201720738568U CN207148558U CN 207148558 U CN207148558 U CN 207148558U CN 201720738568 U CN201720738568 U CN 201720738568U CN 207148558 U CN207148558 U CN 207148558U
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Abstract
The utility model relates to a hydroelectric generating set speed governing control simulation system, include: the system comprises an RTDS simulation device, a water diversion system, a water turbine simulation device, a first interface device and a second interface device; the RTDS simulation device is connected with a water turbine speed regulator of the hydroelectric generating set through first interface equipment and is connected with the water diversion system and the water turbine simulation device through second interface equipment; the RTDS simulation device receives simulation data sent by the water turbine speed regulator through first interface equipment and forwards the simulation data to the water diversion system and the water turbine simulation device through second interface equipment; the diversion system and the water turbine simulation device receive the simulation data, simulate the water hammer effect of the diversion pipeline, and output the simulation data of the water hammer effect of the diversion pipeline to the RTDS simulation device through the second interface equipment; the RTDS simulation device receives the water hammer effect simulation data of the water diversion pipeline, simulates the frequency characteristic and the load characteristic of the hydroelectric generating set, finally obtains the frequency characteristic of the water turbine speed regulating system, and improves the simulation accuracy.
Description
Technical field
Hydropower Unit simulation technical field is the utility model is related to, is emulated more particularly to a kind of Hydropower Unit speed regulating control
System.
Background technology
Pass through D.C. high voltage transmission transmitting system, Large Hydropower Station control and the close coupling of DC control for large-scale water power
Close, its mutually coordinated characteristic will directly affect the safe and stable operation of power network, particularly Large Hydropower Station speed-adjusting and control system
Characteristic is great for system frequency stabilizing influence.And Hydropower Unit speed-adjusting and control system is that one non-linear, non-minimum phase, multiple
Miscellaneous closed-loop regulating system, is made up of controlled plant and speed regulator.Controlled plant includes：Pressure diversion system and drainage system,
The hydraulic turbine, generator and unit are incorporated to the power network of operation, be one by hydrodynamic course, mechanical process and electric process synthesis in one
Body, maintain close ties with each other it is complicated, non-linear and parameter time varying by control system.In order to which researching DC sending end isolated island is transported
System response under row and Asynchronous Interconnection mode, is badly in need of emulating the working characteristics of Hydropower Unit.
However, traditional simulator is generally basede on BPA (Bonneville Power Administration, Bang Nawei
Your electrical management) power system simulation software or PSCAD/EMTDC (Power Systems Computer Aided
Design/Electromagnetic Transients including DC) design, PSCAD is that a kind of electromagnetic transient simulation is soft
Part, EMTDC are its simulation cores, there is provided pattern manipulation interface.However, traditional simulator emulation accuracy is relatively low.
Utility model content
Based on this, it is necessary to for emulating the problem of accuracy is relatively low, there is provided a kind of Hydropower Unit speed regulating control emulation system
System.
A kind of Hydropower Unit speed regulating control analogue system, including：
RTDS simulators, diversion system and hydraulic turbine simulator, first interface equipment and second interface equipment；
The RTDS simulators are connected by the first interface equipment with the hydrogovernor of Hydropower Unit, and
It is connected by second interface equipment with the diversion system and hydraulic turbine simulator；
The RTDS simulators receive the emulation data of hydrogovernor transmission by first interface equipment, and pass through
Second interface equipment is by the data forwarding that emulates to diversion system and hydraulic turbine simulator；
Diversion system and the hydraulic turbine simulator receives the emulation data, and conduit pipe water attack effect is imitated
Very, and by second interface equipment by conduit pipe water attack effect data output is emulated to RTDS simulators；
The RTDS simulators receive the conduit pipe water attack effect emulation data, and special to the frequency of Hydropower Unit
Property and part throttle characteristics are emulated.
Above-mentioned Hydropower Unit speed regulating control analogue system, by stating RTDS simulators and real hydrogovernor phase
Connection, the emulation data sent according to hydrogovernor carry out RTDS emulation, and pass through diversion system and hydraulic turbine emulation dress
Put and conduit pipe water attack effect is emulated, so as to simulate real water hammer, finally give water turbine governing system
The frequency characteristic of system, improve emulation accuracy.
Brief description of the drawings
Fig. 1 is the module map of the Hydropower Unit speed regulating control analogue system of one embodiment；
Fig. 2 is the structural representation of the Hydropower Unit speed regulating control analogue system of one embodiment.
Embodiment
The technical solution of the utility model is illustrated below in conjunction with the accompanying drawings.
In one embodiment, the utility model provides a kind of Hydropower Unit speed regulating control analogue system, it may include：
RTDS simulators (Real Time Digital Simulator, real-time digital simulator), diversion system and water
Marine Simulation device, first interface equipment and second interface equipment；
The RTDS simulators are connected by the first interface equipment with the hydrogovernor of Hydropower Unit, and
It is connected by second interface equipment with the diversion system and hydraulic turbine simulator；
The RTDS simulators receive the emulation data of hydrogovernor transmission by first interface equipment, and pass through
Second interface equipment is by the data forwarding that emulates to diversion system and hydraulic turbine simulator；
Diversion system and the hydraulic turbine simulator receives the emulation data, and conduit pipe water attack effect is imitated
Very, and by second interface equipment by conduit pipe water attack effect data output is emulated to RTDS simulators；
The RTDS simulators receive the conduit pipe water attack effect emulation data, and special to the frequency of Hydropower Unit
Property and part throttle characteristics are emulated.
RTDS simulators can access real hydrogovernor in large hydropower station, real hydrogovernor bag
Switching containing different operating modes, RTDS simulators can realize the water wheels consistent with actual device characteristic by parameter with Structure Identification
Machine speed regulator RTDS is modeled.The model be contemplated that speed regulator unloaded, networking, three kinds of different operational modes of isolated island, and aperture and
Two kinds of control modes of power, the PID control under different operational modes consider the nonlinear elements such as amplitude limit, realize water turbine governing
The accurate simulation of device control characteristic, different control modes consider the nonlinear elements such as rate limit, dead band.
The effect of diversion system and hydraulic turbine simulator is that diversion system and the hydraulic turbine are emulated, for diversion system
For system, the flow characteristics in conduit pipe greatly affected the performance of Adaptive System of Water-Turbine Engine.Fluid inertia causes diversion
The change of flow lags behind the change of guide vane opening, at the same time, the bullet of the compressibility of water body and tube wall in pipeline in pipeline
Property cause liquid internal produce pressure and in pipeline alternately lifting transmit, formed water hammer, it occur in pressure pipe deferent
The all surface of wall, reach very big numerical value sometimes, cause changed power to occur demodulating phenomenon initial stage in response, influence system
Frequency characteristic.For general emulation can not accurate simulation water hammer problem, the utility model is provided with diversion system and water wheels
Machine simulator, detailed simulation model can be established according to typical power station parameter, obtain conduit pipe water attack effect data, and
Data interchange, realization and RTDS simulator associative simulations are carried out by second interface equipment and RTDS simulators, it is final to obtain
To the frequency characteristic of Turbine Governor System.
In one further embodiment, above-mentioned first interface equipment may include the first High Speed Analog amount output board card
(GTAO, The Gigabit Transceiver Analogue Output Card), frequency senser, the first high-speed figure amount are defeated
Go out board (GTDO, The Gigabit Transceiver Digital Input Card), the first High Speed Analog amount tablet
Block (GTAI, The Gigabit Transceiver Analogue Input Card) and digiverter；The RTDS is imitated
First output end of true device is connected with frequency senser and hydrogovernor respectively by the first High Speed Analog amount output board card
Connect, the frequency senser is connected with hydrogovernor；Second output end of the RTDS simulators passes through described first
High-speed figure amount output board card is connected with hydrogovernor；The first input end of the RTDS simulators is high by first
Fast analog input card is connected with digiverter, and the digiverter is connected with hydrogovernor.
In an application scenarios of reality, the first High Speed Analog amount output board card can use hardwire mode and institute
Frequency senser is stated to be connected；The frequency senser, the first High Speed Analog amount output board card and digiverter can be used and connect firmly
Line mode is connected with the hydrogovernor；The digiverter can use hardwire mode and the described first high speed
Analog input card is connected；The first High Speed Analog amount output board card, the first high-speed figure amount output board card and first
High Speed Analog amount input card can be connected by optical fiber with the RTDS simulators.
Specifically, RTDS simulators can be by the first High Speed Analog amount output board card by instantaneous generator terminal three-phase in real time
Voltage is sent into frequency senser, frequency senser detection electric voltage frequency, is connected by hardwire, frequency signal is sent into water turbine governing
Device；Stator stroke signal can be also sent into hydrogovernor by RTDS simulators by the first High Speed Analog amount output board card；
RTDS simulators can also be by the first high-speed figure amount output board card by operation sides such as generator terminal circuit breaker position, isolated island, networkings
Formula is sent into hydrogovernor；Hydrogovernor can will control opening amount signal to be sent into the first High Speed Analog by D/A conversion module
Input card is measured, control signal is inputted RTDS simulators by the first High Speed Analog amount input card.
In another further embodiment, the second interface equipment may include multiple high-speed communication boards
(GTNET, The Gigabit Transceive Network Interface Card)；The input of the RTDS simulators
Output end is connected by each high-speed communication board with the input/output terminal of diversion system and hydraulic turbine simulator respectively.
RTDS simulators can by high-speed communication board by speed regulator control aperture and generator speed signal be sent into diversion system and
Hydraulic turbine simulator, diversion system and hydraulic turbine simulator are by GTNET cards by stator stroke and generator torque signal
It is sent into RTDS real-time simulation apparatus.In an application scenarios of reality, the RTDS simulators and each high-speed communication plate
Card is connected by optical fiber, and each high-speed communication board passes through network connection with the diversion system and hydraulic turbine simulator.
Above-mentioned each board can use ICP/IP protocol (Transmission Control Protocol/Internet
Protocol, transmission control protocol/Internet Protocol) realize that diversion system and hydraulic turbine simulator fill with RTDS emulation
Communication between putting.RTDS simulators can utilize ICP/IP protocol by the frequency of each Hydropower Unit in power station by GTNET boards
Rate, speed regulator control opening amount signal, clock sync signal enter diversion system and hydraulic turbine simulator, diversion system and the hydraulic turbine
Simulator, which is calculated, sends each unit output back to RTDS with ICP/IP protocol by GTNET Calis with stator stroke in real time and imitates
True device, form closed-loop simulation system.
In order to be emulated to DC control protection feature, also settable DC control protection device and the 3rd interface are set
It is standby；The DC control protection device is connected by the 3rd interface equipment with RTDS simulators；The DC control protection
Device receives voltage signal, current signal, wave filter switching state signal and the alternating current-direct current field of the RTDS simulators output
Switching signal, and the order of output AC/DC field switch and converter valve trigger signal are closed to the RTDS simulators to described
The DC control protection feature of ring simulation process is emulated.
Further, the 3rd interface equipment may include the second High Speed Analog amount output board card, the second high-speed figure amount
Output board card and the second high-speed figure amount input card；4th output end of the RTDS simulators passes through the second High Speed Analog
Amount output board card is connected with the first input end of DC control protection device；5th output end of the RTDS simulators is led to
The second high-speed figure amount output board card is crossed with the second input of DC control protection device to be connected；The RTDS emulation
3rd input of device is connected by the second high-speed figure amount input card with the output end of DC control protection device.
RTDS simulators can give the signals such as combined-voltage, electric current to direct current control by High Speed Analog amount output board card GTAO boards
Protection device processed, wave filter switching state, alternating current-direct current field switch signal etc. are sent into by high-speed figure amount output board card GTDO
The order of alternating current-direct current field switch and converter valve trigger signal can be passed through height by DC control protection device, DC control protection device
Speed digital amount input card GTDI boards are sent into RTDS simulators.
In an application scenarios of reality, the second high-speed figure amount output board card, the output of the second High Speed Analog amount
Board and the second high-speed figure amount input card can be connected by optical fiber with the RTDS simulators respectively；Described second is high
Fast analog output card, the second high-speed figure amount output board card and the second high-speed figure amount input card can be respectively by connecing firmly
Line is connected with the DC control protection device.
It is according to comparing result as can be seen that new by this practicality the following table shows the contrast of emulation data and measured data
The Hydropower Unit speed regulating control analogue system of type can accurately simulate the frequency characteristic of hydrogovernor.
The utility model has advantages below：
(1) three kinds of unloaded speed regulator, networking, isolated island different operational modes, two kinds of controlling parties of aperture and power can be simulated
Formula, realize the accurate simulation to governor characteristic.
(2) diversion system and hydraulic turbine simulator and RTDS simulator communication interfaces are developed, RTDS passes through GTNET
Cali's ICP/IP protocol by each machine class frequency in power station, speed regulator control opening amount signal, clock sync signal enter diversion system and
Hydraulic turbine simulator, diversion system and hydraulic turbine simulator, which are calculated, in real time passes through each unit output and stator stroke
GTNET Calis send RTDS real-time simulation apparatus back to ICP/IP protocol, form closed-loop simulation system.
(3) large-scale water power is set by HVDC transmitting system machine net coordinate frequency characteristic accurate simulation platform by interface
Standby 3 have accessed true DC control protection device, realize to DC control protection feature accurate simulation.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (8)
- A kind of 1. Hydropower Unit speed regulating control analogue system, it is characterised in that including：RTDS simulators, hydrogovernor, diversion system and hydraulic turbine simulator, first interface equipment and second interface Equipment；The RTDS simulators are connected by the first interface equipment with the hydrogovernor of Hydropower Unit, and are passed through Second interface equipment is connected with the diversion system and hydraulic turbine simulator；The RTDS simulators receive the emulation data of hydrogovernor transmission by first interface equipment, and pass through second Interface equipment is by the data forwarding that emulates to diversion system and hydraulic turbine simulator；Diversion system and the hydraulic turbine simulator receives the emulation data, and conduit pipe water attack effect is emulated, And conduit pipe water attack effect is emulated to RTDS simulators by data output by second interface equipment；The RTDS simulators receive the conduit pipe water attack effect emulation data, and frequency characteristic to Hydropower Unit and Part throttle characteristics is emulated.
- 2. Hydropower Unit speed regulating control analogue system according to claim 1, it is characterised in that the first interface equipment Including：First High Speed Analog amount output board card, frequency senser, the first high-speed figure amount output board card, the input of the first High Speed Analog amount Board and digiverter；First output end of the RTDS simulators by the first High Speed Analog amount output board card respectively with frequency senser and water Turbine speed regulator is connected, and the frequency senser is connected with hydrogovernor；Second output end of the RTDS simulators passes through the first high-speed figure amount output board card and hydrogovernor It is connected；The first input end of the RTDS simulators is connected by the first High Speed Analog amount input card with digiverter Connect, the digiverter is connected with hydrogovernor.
- 3. Hydropower Unit speed regulating control analogue system according to claim 2, it is characterised in that first High Speed Analog Amount output board card is connected using hardwire with the frequency senser；The frequency senser, the first High Speed Analog amount output board card and digiverter are adjusted using hardwire and the hydraulic turbine Fast device is connected；The digiverter is connected using hardwire with the first High Speed Analog amount input card；The first High Speed Analog amount output board card, the first high-speed figure amount output board card and the first High Speed Analog amount input card It is connected by optical fiber with the RTDS simulators.
- 4. Hydropower Unit speed regulating control analogue system according to claim 1, it is characterised in that the second interface equipment Including：Multiple high-speed communication boards；The input/output terminal of the RTDS simulators is imitated by each high-speed communication board with diversion system and the hydraulic turbine respectively The input/output terminal of true device is connected.
- 5. Hydropower Unit speed regulating control analogue system according to claim 4, it is characterised in that the RTDS simulators It is connected with each high-speed communication board by optical fiber, each high-speed communication board and the diversion system and hydraulic turbine simulator Pass through network connection.
- 6. Hydropower Unit speed regulating control analogue system according to claim 1, it is characterised in that also include：DC control protection device and the 3rd interface equipment；The DC control protection device is connected by the 3rd interface equipment with RTDS simulators；Voltage signal, current signal, the wave filter that the DC control protection device receives the RTDS simulators output are thrown Cut status signal and alternating current-direct current field switch signal, and the order of output AC/DC field switch and converter valve trigger signal are to described RTDS simulators, DC control protection feature is emulated.
- 7. Hydropower Unit speed regulating control analogue system according to claim 6, it is characterised in that the 3rd interface equipment Including：Second High Speed Analog amount output board card, the second high-speed figure amount output board card and the second high-speed figure amount input card；4th output end of the RTDS simulators passes through the second High Speed Analog amount output board card and DC control protection device First input end be connected；5th output end of the RTDS simulators is protected by the second high-speed figure amount output board card and DC control Second input of device is connected；3rd input of the RTDS simulators passes through the second high-speed figure amount input card and DC control protection device Output end be connected.
- 8. Hydropower Unit speed regulating control analogue system according to claim 7, it is characterised in that second high-speed figure Measure output board card, the second High Speed Analog amount output board card and the second high-speed figure amount input card respectively by optical fiber with it is described RTDS simulators are connected；The second High Speed Analog amount output board card, the second high-speed figure amount output board card and the second high-speed figure amount input card It is connected respectively by hardwire with the DC control protection device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720738568.2U CN207148558U (en) | 2017-06-22 | 2017-06-22 | Speed regulation control simulation system of hydroelectric generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720738568.2U CN207148558U (en) | 2017-06-22 | 2017-06-22 | Speed regulation control simulation system of hydroelectric generating set |
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| CN207148558U true CN207148558U (en) | 2018-03-27 |
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| CN201720738568.2U Active CN207148558U (en) | 2017-06-22 | 2017-06-22 | Speed regulation control simulation system of hydroelectric generating set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780607A (en) * | 2019-11-05 | 2020-02-11 | 国网四川省电力公司电力科学研究院 | Water turbine speed regulating system damping test method and device based on ADPSS |
-
2017
- 2017-06-22 CN CN201720738568.2U patent/CN207148558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780607A (en) * | 2019-11-05 | 2020-02-11 | 国网四川省电力公司电力科学研究院 | Water turbine speed regulating system damping test method and device based on ADPSS |
| CN110780607B (en) * | 2019-11-05 | 2022-11-01 | 国网四川省电力公司电力科学研究院 | Water turbine speed regulating system damping test method and device based on ADPSS |
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Effective date of registration: 20210610 Address after: 510700 3rd, 4th and 5th floors of building J1 and 3rd floor of building J3, No.11 Kexiang Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee after: China South Power Grid International Co.,Ltd. Address before: 510663 3 building, 3, 4, 5 and J1 building, 11 building, No. 11, Ke Xiang Road, Luogang District Science City, Guangzhou, Guangdong. Patentee before: China South Power Grid International Co.,Ltd. Patentee before: POWER GRID TECHNOLOGY RESEARCH CENTER. CHINA SOUTHERN POWER GRID |
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