CN110532713A - A kind of hydrogovernor electro-hydraulic servo analogue system - Google Patents
A kind of hydrogovernor electro-hydraulic servo analogue system Download PDFInfo
- Publication number
- CN110532713A CN110532713A CN201910828002.2A CN201910828002A CN110532713A CN 110532713 A CN110532713 A CN 110532713A CN 201910828002 A CN201910828002 A CN 201910828002A CN 110532713 A CN110532713 A CN 110532713A
- Authority
- CN
- China
- Prior art keywords
- module
- electro
- clipping
- hydraulic
- rate limitation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a kind of hydrogovernor electro-hydraulic servo analogue systems, including mode input signaling module, electro-hydraulic conversion amplification module, electro-hydraulic conversion clipping module, electro-hydraulic transition time constant module, rate limitation module, integral element module, integrate clipping module, time delay module and output signal module, by electro-hydraulic conversion amplification module after mode input signaling module input signal, electro-hydraulic conversion clipping module, electro-hydraulic transition time constant module, rate limitation module, integral element module, integrate clipping module, time delay module and output signal module obtain output guide blade aperture.The existing higher simulation accuracy of electro-hydraulic servo analogue system in the present invention can meet including the simulation calculations such as great fluctuation process, minor swing, and more convenient acquisition actual parameter simultaneously, be suitable for current electric system simulation modeling work.
Description
Technical field
The invention belongs to hydrogovernor modeling and electric system simulation computing technique fields, and in particular to a kind of water wheels
Machine governor electro-hydraulic servo analogue system.
Background technique
The model and parameter of electric system are the bases of power system computation and simulation analysis, and accuracy ties analysis
Fruit has great influence, for the accuracy for improving electrical power system analysis and computing, it is desirable that the 50MW for the operation that is connected to the grid and the above water
The generating set that turbine generator group and network analysis demonstrate the need for actual measurement modeling is required to carry out modeling work, for system point
Analysis, which calculates, provides accurate model and parameter.Have both at home and abroad about hydrogovernor electrohydraulic servo system modeling at present many
Research, for excessively fine model, although physical significance is clear, each link is clear, and it is more to be needed parameter, most of
Parameter can not be obtained accurately, therefore be difficult the practical application in power system modeling, and electric system simulation analysis at present is mainly answered
GA card in simplified model, such as PSD software, source and steam turbine model, although realizing partial simulation function,
Physical significance is unintelligible, brings certain puzzlement to actual measurement modeling work, and simulation accuracy is poor, the distortion of Part load simulation result
Seriously.
Based on the above reasons, work is surveyed in conjunction with modeling, summarizes a set of hydrogovernor electrohydraulic servo system modeling, it should
Model can adapt to all whole governor electrohydraulic servo system modeling works of large and medium-sized dullness, both be able to satisfy current modeling accuracy
It is required that and facilitating acquisition realistic model parameter.The model has taken into account model accuracy and parameter and has easily obtained two aspect factors, have compared with
Good practical application value.
At present in model, the high model of simulation accuracy can not obtain actual parameter, and simplified model physical significance is unclear
It is clear, with the problems such as physical device model bias is larger, emulation adaptability for working condition is bad.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of hydrogovernor electro-hydraulic servo analogue system, Neng Goushi
Should all large and medium-sized whole governor electrohydraulic servo system modeling works of dullness, taken into account model accuracy and parameter obtain two aspects because
Element had not only been able to satisfy modeling accuracy requirement, but also facilitated and obtain realistic model parameter, can satisfy stability of power system simulation analysis
Demand.
The technical scheme adopted by the invention is as follows: a kind of hydrogovernor electro-hydraulic servo analogue system, including mode input
Signaling module, electro-hydraulic conversion amplification module, electro-hydraulic conversion clipping module, electro-hydraulic transition time constant module, rate limitation module,
Integral element module, integral clipping module, time delay module and output signal module, mode input signaling module is using speed regulation
The output of device PID loop section output module is as a result, electro-hydraulic conversion amplification module carries out the input signal of mode input signaling module
Enhanced processing, the result after enhanced processing are input to electro-hydraulic conversion clipping module, amplification of the electro-hydraulic conversion clipping module to input
Signal carries out minimum and maximum clipping, and the signal of clipping carries out judgement output by electro-hydraulic transition time constant module, judges defeated
Result is sent into rate limitation module out, is input to integral element module after rate limitation module speed limit, passes through integral element
Enter limit of integration width module after module integral, entry time Postponement module after clipping module clipping is integrated, by time delay mould
Block output guide blade aperture.
Electro-hydraulic amplification module of converting carries out ratio enlargement into proportional component, using rate mu-factor kop.
Electro-hydraulic conversion clipping module uses electro-hydraulic conversion clipping minimum value k_min and electro-hydraulic conversion clipping maximum value k_max
Clipping is carried out, electro-hydraulic conversion clipping minimum value k_min and electro-hydraulic conversion clipping maximum value k_max carry out clipping and be respectively set to -1
With 1.
The judgment method of electro-hydraulic transition time constant module are as follows: input quantity Ymid1, output quantity Ymid2, electro-hydraulic conversion
Time constant Ty is respectively set according to booting direction and shutdown direction, and Tyc is the electro-hydraulic transition time constant of closing direction, and Tyo is
The electro-hydraulic transition time constant of opening direction uses Switch1 for switching function in electro-hydraulic transition time constant module, switching function
There are two channels for input, and when electro-hydraulic transition time constant module input quantity Ymid1 is more than or equal to 0, switching function is switched on
Machine direction executes, and when electro-hydraulic transition time constant module input quantity Ymid2 is less than 0, switching function is switched to shutdown direction and holds
Row, output quantity is Ymid2 after execution.
Rate limitation module includes three rate limitation modules and two switching modules, and three rate limitation modules are respectively
Starting up speed limits module Vo1, shutdown rate limitation module Vc1, shutdown rate limitation module Vc2；Two switching module difference
For switching module Switch2 and switching module Switch3,
Starting up speed limits module Vo1, and parameter is Vo_max and Vo_min；
Shut down rate limitation module Vc1, and parameter is Vc_max1 and Vc_min1；
Shut down rate limitation module Vc2, and parameter is Vc_max2 and Vc_min2；
Switching function Switch2, when speed limit module input quantity Ymid2 is more than or equal to 0, switching function Switch2 switching
It is executed to booting direction rate limitation, when speed limit module input quantity Ymid2 is less than 0, switching function Switch2 is switched to shutdown
Direction rate limitation executes；
Switching function Switch3, when guide vane opening value Y is more than or equal to sequence closing inflection point aperture yk0, switching function
Switch3 is switched to first segment shutdown curve and executes, and when guide vane opening value Y is less than sequence closing inflection point aperture yk0, switches letter
Number Switch3 is switched to second segment shutdown curve and executes；
Wherein,TopenFor the available machine time；
Vo_min=0；
Vc_max1=0；
Vc_min1=0；
Tclose1It is the unused time of 100% total travel for first segment shutdown conversion；
Tclose2It is the unused time of 100% total travel for second segment shutdown conversion；
Yk0 is that guide vane surveys inflection point, with three fractional representations；
When shutdown is that straight line is closed, yk0=0, guide vane closing velocity clipping is arranged in rate limitation module Vc1, speed
Degree limitation module Vc2 failure, parameter do not influence as a result, may be configured as Vc_max2=1；Vc_min2=-1, or and rate limitation
Module Vc1 parameter setting is identical.
Initial value is original steady state value in integral element module, i.e. initial value is set as initial steady state guide vane opening.
Integrate setting integral clipping minimum value Int_min and integral clipping maximum value Int_max, the limit of integration in clipping module
Width minimum value Int_min and integral clipping maximum value Int_max is respectively -1 and 1.
The input quantity Y of time delay modulemid3To integrate amplitude limit link output quantity, output quantity is guide vane opening Y, then
Y=Ymid3·e-Ts
Wherein, T is equal to the main servomotor dead time, and unit is the second.
Beneficial effects of the present invention: compared with prior art, the electro-hydraulic servo analogue system in the present invention is existing higher
Simulation accuracy can meet including the simulation calculations such as great fluctuation process, minor swing, and more convenient acquisition actual parameter simultaneously, be suitable for
Electric system simulation modeling work at present.Solving the model that simulation accuracy is high in current electrohydraulic servo system modeling can not obtain
Actual parameter, and simplified model physical significance is unintelligible, and physical device model bias is larger, emulation adaptability for working condition is bad
The problems such as.
Detailed description of the invention
Fig. 1 is electrohydraulic servo system modeling transmission function block diagram of the invention；
Fig. 2 is upset test measured waveform figure；
Fig. 3 is fitting post-simulation curve and test waveform curve comparison referring to figure；
Fig. 4 is rate limitation module diagram；
Fig. 5 is 0.15Hz disturbance emulation and actual measurement comparison diagram；
Fig. 6 is -0.15Hz disturbance emulation and actual measurement comparison diagram；
Fig. 7 is 5Hz great fluctuation process frequency disturbance simulation curve and measured curve comparison chart；
Fig. 8 is -5Hz great fluctuation process frequency disturbance simulation curve and measured curve comparison chart.
Specific embodiment
With reference to the accompanying drawing and the present invention is described further in specific embodiment.
Embodiment: as Figure 1-Figure 8, a kind of hydrogovernor electro-hydraulic servo analogue system, including mode input letter
Number module, electro-hydraulic conversion amplification module, electro-hydraulic conversion clipping module, electro-hydraulic transition time constant module, rate limitation module, product
Link module, integral clipping module, time delay module and output signal module, mode input signaling module is divided to use governor
The output of PID loop section output module is as a result, electro-hydraulic conversion amplification module puts the input signal of mode input signaling module
Big to handle, the result after enhanced processing is input to electro-hydraulic conversion clipping module, and electro-hydraulic conversion clipping module believes the amplification of input
Number minimum and maximum clipping is carried out, the signal of clipping carries out judgement output by electro-hydraulic transition time constant module, judges to export
As a result it is sent into rate limitation module, integral element module is input to after rate limitation module speed limit, passes through integral element mould
Enter limit of integration width module after block integral, entry time Postponement module after clipping module clipping is integrated, by time delay module
Output guide blade aperture.
Electro-hydraulic amplification module of converting carries out ratio enlargement into proportional component, using rate mu-factor kop, is set as 1.
Electro-hydraulic conversion clipping module uses electro-hydraulic conversion clipping minimum value k_min and electro-hydraulic conversion clipping maximum value k_max
Clipping is carried out, electro-hydraulic conversion clipping minimum value k_min and electro-hydraulic conversion clipping maximum value k_max carry out clipping and be respectively set to -1
With 1.
The judgment method of electro-hydraulic transition time constant module are as follows: input quantity Ymid1, output quantity Ymid2, electro-hydraulic conversion
Time constant Ty is respectively set according to booting direction and shutdown direction, and Tyc is the electro-hydraulic transition time constant of closing direction, and Tyo is
The electro-hydraulic transition time constant of opening direction uses Switch1 for switching function in electro-hydraulic transition time constant module, switching function
There are two channels for input, and when electro-hydraulic transition time constant module input quantity Ymid1 is more than or equal to 0,1. switching function is switched to
Channel booting direction executes, and when electro-hydraulic transition time constant module input quantity Ymid2 is less than 0,2. switching function, which is switched to, to be led to
Road shutdown direction executes, and output quantity is Ymid2 after execution.
Parameter setting is fitted identification by minor swing perturbation motion method and obtains, and the specific method is as follows:
Primary frequency function is put into ,+0.15 hertz frequency upset test is carried out in governor unit frequency input mouth, obtains
Guide vane opening transient process waveform is obtained, upset test measured waveform is as shown in Figure 2.
0.5 is set by Tyc initial value, simulation curve and measured waveform are compared, according to guide vane opening easement curve
Descending branch is fitted, and when fitting precision meets simulation accuracy requirement, Tyc parameter value obtained is used in final mask
Parameter can also directly obtain Tyc value using least square method by the test method.It is fitted post-simulation curve and test waveform is bent
Line is compared referring to shown in Fig. 3.
Primary frequency function is put into, -0.15 hertz frequency upset test is carried out in governor unit frequency input mouth, obtains
Guide vane opening transient process waveform is obtained, it is identical with the above method, it can get parameter used in Tyo final mask.
Rate limitation module includes three rate limitation modules and two switching modules, the detailed structure view of each Link Model
As shown in figure 4, three rate limitation modules are respectively starting up speed limitation module Vo1, shutdown rate limitation module Vc1, shutdown
Rate limitation module Vc2；Two switching modules are respectively switching module Switch2 and switching module Switch3,
Starting up speed limits module Vo1, and parameter is Vo_max and Vo_min；
Shut down rate limitation module Vc1, and parameter is Vc_max1 and Vc_min1；
Shut down rate limitation module Vc2, and parameter is Vc_max2 and Vc_min2；
Switching function Switch2, when speed limit module input quantity Ymid2 is more than or equal to 0, switching function Switch2 switching
It is executed to 3. channel booting direction rate limitation, when speed limit module input quantity Ymid2 is less than 0, switching function Switch2 switching
It is executed to 4. channel shutdown direction rate limitation；
Switching function Switch3, when guide vane opening value Y is more than or equal to sequence closing inflection point aperture yk0, switching function
Switch3 is switched to 5. channel first segment shutdown curve and executes, when guide vane opening value Y is less than sequence closing inflection point aperture yk0,
Switching function Switch3 is switched to 6. channel second segment shutdown curve and executes；
Wherein,TopenFor the available machine time；
Vo_min=0；
Vc_max1=0；
Vc_min1=0；
Tclose1It is the unused time of 100% total travel for first segment shutdown conversion；
Tclose2It is the unused time of 100% total travel for second segment shutdown conversion；
Yk0 is that guide vane surveys inflection point, with three fractional representations, such as 0.455.
When shutdown is that straight line is closed, yk0=0, guide vane closing velocity clipping is arranged in rate limitation module Vc1, speed
Degree limitation module Vc2 failure, parameter do not influence as a result, may be configured as Vc_max2=1；Vc_min2=-1, or and rate limitation
Module Vc1 parameter setting is identical.
Initial value is original steady state value in integral element module, i.e. initial value is set as initial steady state guide vane opening.
Integrate setting integral clipping minimum value Int_min and integral clipping maximum value Int_max, the limit of integration in clipping module
Width minimum value Int_min and integral clipping maximum value Int_max is respectively -1 and 1.
The input quantity Y of time delay modulemid3To integrate amplitude limit link output quantity, output quantity is guide vane opening Y, then
Y=Ymid3·e-Ts
Wherein, T is equal to the main servomotor dead time, and unit is the second.
Servo system models emulation embodiment of the invention: the model insertion is imitated into one machine infinity bus system
Very, progress ± 0.15Hz minor swing frequency disturbance respectively, the test of ± 5Hz great fluctuation process frequency disturbance, and carried out pair with measured curve
Than verifying,
Parameter setting is as shown in table 1:
1 electrohydraulic servo system modeling parameter list of table
(1) 0.15Hz minor swing frequency disturbance, simulation curve and measured curve comparison result are as shown in table 2, Fig. 5.
The emulation of 2 executing agency of table and actual measurement deviation chart (0.15Hz)
(2) -0.15Hz minor swing frequency disturbance, simulation curve and measured curve comparison result are as shown in table 3, Fig. 6.
The emulation of table 3 and actual measurement deviation chart (- 0.15Hz)
| Parameter name | Rise time tup(s) | Regulating time ts(s) |
| Measured curve | 6.00 | 8.26 |
| Simulation curve | 6.00 | 8.59 |
| Deviation (measured value-simulation value) | 0.00 | -0.33 |
| Tolerance | ±0.2 | ±1.0 |
(3) 5Hz great fluctuation process frequency disturbance, simulation curve and measured curve comparison result are as shown in Figure 7.
(4) -5Hz great fluctuation process frequency disturbance, simulation curve and measured curve comparison result are as shown in Figure 8.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Within protection scope of the present invention, therefore, protection scope of the present invention should be based on the protection scope of the described claims lid.
Claims (8)
1. a kind of hydrogovernor electro-hydraulic servo analogue system, it is characterised in that: including mode input signaling module, electro-hydraulic turn
Change amplification module, electro-hydraulic conversion clipping module, electro-hydraulic transition time constant module, rate limitation module, integral element module, product
Divide clipping module, time delay module and output signal module, mode input signaling module exports mould using governor PID loop section
The output of block is as a result, the input signal of mode input signaling module is amplified processing by electro-hydraulic conversion amplification module, at amplification
Result after reason is input to electro-hydraulic conversion clipping module, and electro-hydraulic conversion clipping module carries out the amplified signal of input maximum and most
The signal of small clipping, clipping carries out judgement output by electro-hydraulic transition time constant module, judges that exporting result is sent into speed limit
Molding block is input to integral element module after rate limitation module speed limit, enters product after integrating by integral element module
Divide clipping module, entry time Postponement module after clipping module clipping is integrated, by time delay module output guide blade aperture.
2. a kind of hydrogovernor electro-hydraulic servo analogue system according to claim 1, it is characterised in that: electro-hydraulic conversion
Amplification module is proportional component, carries out ratio enlargement using rate mu-factor kop.
3. a kind of hydrogovernor electro-hydraulic servo analogue system according to claim 1, it is characterised in that: electro-hydraulic conversion
Clipping module carries out clipping, electro-hydraulic conversion using electro-hydraulic conversion clipping minimum value k_min and electro-hydraulic conversion clipping maximum value k_max
Clipping minimum value k_min and electro-hydraulic conversion clipping maximum value k_max carries out clipping and is respectively set to -1 and 1.
4. a kind of hydrogovernor electro-hydraulic servo analogue system according to claim 1, it is characterised in that: electro-hydraulic conversion
Time constant module setting method are as follows: input quantity Ymid1, output quantity Ymid2, electro-hydraulic transition time constant Ty is according to booting
Direction and shutdown direction are respectively set, and Tyc is the electro-hydraulic transition time constant of closing direction, when Tyo is opening direction electro-hydraulic conversion
Between constant, switching function is used as using Switch1 in electro-hydraulic transition time constant module, there are two switching function inputs channel,
When electro-hydraulic transition time constant module input quantity Ymid1 is more than or equal to 0, switching function is switched to booting direction and executes, and works as electricity
When liquid transition time constant module input quantity Ymid2 is less than 0, switching function is switched to shutdown direction and executes, output quantity after execution
For Ymid2.
5. a kind of hydrogovernor electro-hydraulic servo analogue system according to claim 1, it is characterised in that: rate limitation
Module includes three rate limitation modules and two switching modules, and three rate limitation modules are respectively starting up speed limitation module
Vo1, shutdown rate limitation module Vc1, shutdown rate limitation module Vc2；Two switching modules are respectively switching module Switch2
With switching module Switch3,
Starting up speed limits module Vo1, and parameter is Vo_max and Vo_min；
Shut down rate limitation module Vc1, and parameter is Vc_max1 and Vc_min1；
Shut down rate limitation module Vc2, and parameter is Vc_max2 and Vc_min2；
Switching function Switch2, when speed limit module input quantity Ymid2 is more than or equal to 0, switching function Switch2 is switched on
Machine direction rate limitation executes, and when speed limit module input quantity Ymid2 is less than 0, switching function Switch2 is switched to shutdown direction
Rate limitation executes；
Switching function Switch3, when guide vane opening value Y is more than or equal to sequence closing inflection point aperture yk0, switching function
Switch3 is switched to first segment shutdown curve and executes, and when guide vane opening value Y is less than sequence closing inflection point aperture yk0, switches letter
Number Switch3 is switched to second segment shutdown curve and executes；
Wherein,TopenFor the available machine time；
Vo_min=0；
Vc_max1=0；
Vc_min1=0；
Tclose1It is the unused time of 100% total travel for first segment shutdown conversion；
Tclose2It is the unused time of 100% total travel for second segment shutdown conversion；
Yk0 is that guide vane surveys inflection point, with three fractional representations；
When shutdown is that straight line is closed, yk0=0, guide vane closing velocity clipping is arranged in rate limitation module Vc1, speed limit
Molding block Vc2 failure or identical as rate limitation module Vc1 parameter setting.
6. a kind of hydrogovernor electro-hydraulic servo analogue system according to claim 1, it is characterised in that: integral element
Initial value is original steady state value in module, i.e. initial value is set as initial steady state guide vane opening.
7. a kind of hydrogovernor electro-hydraulic servo analogue system according to claim 1, it is characterised in that: integral clipping
Setting integral clipping minimum value Int_min and integral clipping maximum value Int_max, integrates clipping minimum value Int_min in module
It is respectively -1 and 1 with integral clipping maximum value Int_max.
8. a kind of hydrogovernor electro-hydraulic servo analogue system according to claim 1, it is characterised in that: time delay
The input quantity Y of modulemid3To integrate amplitude limit link output quantity, output quantity is guide vane opening Y, then
Y=Ymid3·e-Ts
Wherein, T is equal to the main servomotor dead time, and unit is the second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910828002.2A CN110532713A (en) | 2019-09-03 | 2019-09-03 | A kind of hydrogovernor electro-hydraulic servo analogue system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910828002.2A CN110532713A (en) | 2019-09-03 | 2019-09-03 | A kind of hydrogovernor electro-hydraulic servo analogue system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110532713A true CN110532713A (en) | 2019-12-03 |
Family
ID=68666448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910828002.2A Pending CN110532713A (en) | 2019-09-03 | 2019-09-03 | A kind of hydrogovernor electro-hydraulic servo analogue system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110532713A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111581770A (en) * | 2020-03-30 | 2020-08-25 | 大唐水电科学技术研究院有限公司 | Simulation model of electro-hydraulic servo system of double-adjustment hydraulic turbine speed regulator |
| CN112383254A (en) * | 2020-12-07 | 2021-02-19 | 中国长江电力股份有限公司 | Guide vane opening degree analog quantity segmentation open-loop control method and system |
| CN113820953A (en) * | 2021-09-26 | 2021-12-21 | 北京航空航天大学 | Modeling method and device of guide vane servo system and electronic equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382967A (en) * | 2008-09-02 | 2009-03-11 | 陕西电力科学研究院 | Method for emulating main servo of hydrogovernor |
| CN103807090A (en) * | 2013-11-22 | 2014-05-21 | 南方电网科学研究院有限责任公司 | Impact type water turbine regulating system for electric power system stability analysis |
| CN103942355A (en) * | 2014-05-08 | 2014-07-23 | 南方电网科学研究院有限责任公司 | Modeling method for simulating electro-hydraulic servo system of hydroelectric generating set |
| CN104500150A (en) * | 2014-11-28 | 2015-04-08 | 武汉大学 | Piecewise linear model for actuating mechanism of turbine speed controller and parameter acquisition method |
| CN105068424A (en) * | 2015-08-05 | 2015-11-18 | 武汉大学 | Kaplan turbine adjusting system dynamic model suitable for electric power system analysis |
| CN105449698A (en) * | 2015-05-13 | 2016-03-30 | 国网河南省电力公司电力科学研究院 | Novel hydroelectric generating set load and frequency controller |
| CN106894945A (en) * | 2017-03-15 | 2017-06-27 | 南方电网科学研究院有限责任公司 | The modeling method of the hydraulic turbine and its regulating system |
| CN109543222A (en) * | 2018-10-19 | 2019-03-29 | 广西电网有限责任公司电力科学研究院 | Compacted clay liners fast cut back emulation mode under a kind of different capacity level |
| CN109711013A (en) * | 2018-12-14 | 2019-05-03 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | A kind of Adaptive System of Water-Turbine Engine electrohydraulic actuator model |
-
2019
- 2019-09-03 CN CN201910828002.2A patent/CN110532713A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382967A (en) * | 2008-09-02 | 2009-03-11 | 陕西电力科学研究院 | Method for emulating main servo of hydrogovernor |
| CN103807090A (en) * | 2013-11-22 | 2014-05-21 | 南方电网科学研究院有限责任公司 | Impact type water turbine regulating system for electric power system stability analysis |
| CN103942355A (en) * | 2014-05-08 | 2014-07-23 | 南方电网科学研究院有限责任公司 | Modeling method for simulating electro-hydraulic servo system of hydroelectric generating set |
| CN104500150A (en) * | 2014-11-28 | 2015-04-08 | 武汉大学 | Piecewise linear model for actuating mechanism of turbine speed controller and parameter acquisition method |
| CN105449698A (en) * | 2015-05-13 | 2016-03-30 | 国网河南省电力公司电力科学研究院 | Novel hydroelectric generating set load and frequency controller |
| CN105068424A (en) * | 2015-08-05 | 2015-11-18 | 武汉大学 | Kaplan turbine adjusting system dynamic model suitable for electric power system analysis |
| CN106894945A (en) * | 2017-03-15 | 2017-06-27 | 南方电网科学研究院有限责任公司 | The modeling method of the hydraulic turbine and its regulating system |
| CN109543222A (en) * | 2018-10-19 | 2019-03-29 | 广西电网有限责任公司电力科学研究院 | Compacted clay liners fast cut back emulation mode under a kind of different capacity level |
| CN109711013A (en) * | 2018-12-14 | 2019-05-03 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | A kind of Adaptive System of Water-Turbine Engine electrohydraulic actuator model |
Non-Patent Citations (2)
| Title |
|---|
| 杜亚炜: "新能源接入条件下电网频率安全稳定特性与控制研究", 《中国优秀硕士学位论文全文数据库（电子期刊）工程科技II辑》 * |
| 谭金: "发电机组调速系统引发功率振荡的仿真实验研究", 《中国优秀硕士学位论文全文数据库（电子期刊）工程科技II辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111581770A (en) * | 2020-03-30 | 2020-08-25 | 大唐水电科学技术研究院有限公司 | Simulation model of electro-hydraulic servo system of double-adjustment hydraulic turbine speed regulator |
| CN111581770B (en) * | 2020-03-30 | 2023-03-31 | 大唐水电科学技术研究院有限公司 | Simulation model of electro-hydraulic servo system of double-adjustment water turbine speed regulator |
| CN112383254A (en) * | 2020-12-07 | 2021-02-19 | 中国长江电力股份有限公司 | Guide vane opening degree analog quantity segmentation open-loop control method and system |
| CN113820953A (en) * | 2021-09-26 | 2021-12-21 | 北京航空航天大学 | Modeling method and device of guide vane servo system and electronic equipment |
| CN113820953B (en) * | 2021-09-26 | 2024-04-02 | 北京航空航天大学 | Modeling method and device of guide vane servo system and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110532713A (en) | A kind of hydrogovernor electro-hydraulic servo analogue system | |
| CN106655159B (en) | New energy power station primary frequency modulation capability test system and test method thereof | |
| CN105375878B (en) | A kind of method of on-line checking and assessment photovoltaic system efficiency | |
| CN103973203B (en) | A kind of online equivalent modeling method in large-sized photovoltaic power station suitable in security and stability analysis | |
| CN102156045B (en) | Method for testing response time constant of main servomotor of hydraulic turbine governor | |
| CN110797874B (en) | State estimation method for AC/DC hybrid power distribution network containing power electronic transformer | |
| CN103425878B (en) | Power system Quasi dynamic trend and grid operation situation quick calculation method | |
| CN201794708U (en) | Intelligent hand-operated closed-loop control device for speed regulating system of hydroelectric generating unit | |
| CN109698521A (en) | A kind of the low of the photovoltaic DC-to-AC converter based on measured data wears characteristic discrimination method | |
| CN107565582B (en) | The online method of discrimination of bulk power grid steady stability dominant pattern | |
| CN102403916A (en) | Design method of simulation accelerating circuit | |
| CN105470950A (en) | Permanent-magnet direct-drive wind power plant electromagnetic transient equivalent modeling method for fault analysis | |
| CN103592528B (en) | A kind of photovoltaic DC-to-AC converter model parameter identification method based on dynamic trajectory sensitivity | |
| CN105938578A (en) | Large-scale photovoltaic power station equivalent modeling method based on clustering analysis | |
| CN110336327B (en) | Distribution network short-circuit current acquisition method considering distributed photovoltaic low-voltage ride through | |
| CN105373012B (en) | A kind of photovoltaic plant power control characteristics based on hybrid simulation obtain system | |
| CN109473996A (en) | The method and system of transmission cross-section stability margin under a kind of acquisition planned manner | |
| Wang et al. | Automatic adjustment method of power flow calculation convergence for large-scale power grid based on knowledge experience and deep reinforcement learning | |
| CN106814265A (en) | A kind of photovoltaic DC-to-AC converter generating efficiency test system | |
| CN105608244B (en) | Distributed photovoltaic power generation system based on PSCAD/EMTDC | |
| CN108631359A (en) | Wind power plant real-time simulation modeling and method | |
| CN103807090A (en) | Impact type water turbine regulating system for electric power system stability analysis | |
| CN104500150B (en) | A kind of governor for steam turbine actuator piecewise linear model and parameter acquiring method | |
| CN111490551B (en) | Distributed Newton method-based photovoltaic power generation cluster voltage control method for power distribution network | |
| CN114583710B (en) | Wind farm reactive voltage optimization control method based on data driving modeling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |