CN108242810A - A kind of AVC and PSVR control method for coordinating - Google Patents
A kind of AVC and PSVR control method for coordinating Download PDFInfo
- Publication number
- CN108242810A CN108242810A CN201810102430.2A CN201810102430A CN108242810A CN 108242810 A CN108242810 A CN 108242810A CN 201810102430 A CN201810102430 A CN 201810102430A CN 108242810 A CN108242810 A CN 108242810A
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- China
- Prior art keywords
- psvr
- voltage
- avc
- control method
- point
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The present invention relates to field of power system control, particularly a kind of AVC and PSVR control method for coordinating.It is slow for existing automatic voltage control system response voltage change, it takes longer and the problems such as power system transient stability cannot be improved, the present invention provides a kind of AVC and PSVR control method for coordinating, the system voltage desired value that AVC main websites issue is compared by the control method with the absolute value of the difference of generator main transformer high side bus voltage measuring value and preset setting valve, and according to the different selection input PSVR system operations of comparison result, with analog quantity regulative mode regulator generator set end voltage set-point, or PSVR system operations are exited in selection locking, to increase and decrease regulator generator set end voltage set-point in a manner of magnetic field impulse.Control method of the present invention can acquire power plant's related electric information, the target voltage instruction for receiving dispatching down distributing, and according to internal idle allocation strategy to power plant idle output reasonably optimizing, the transient stability of system is improved with the transient change of timely response system voltage.
Description
Technical field
The present invention relates to field of power system control, particularly a kind of AVC and PSVR control method for coordinating.
Background technology
Conventional field regulator（AVR）To control generator terminal voltage as target during work, power system voltage tune
Save device（PSVR）Generator is boosted and becomes high side voltage（System voltage）It introduces AVR and participates in excitation con-trol, AVR is compared with PSVR
Ability is limited in terms of compared with system voltage stability is maintained in grid collapses.Automatic voltage control system（AVC）Pass through reality
When monitoring network voltage/idle, carry out on-line optimization calculating, adjusting control power system reactive power adjustment equipment and carrying out is closed online
Ring controls, and meets the Optimum Reactive Power Flow under network-wide security voltage constraints, reaches the high-quality target with loss minimization of voltage,
But automatic voltage control system（AVC）Primary adjustment needs 60~300s, and spent time is longer, belongs to secondary voltage control, with
Power system voltage adjuster（PSVR）Compared to the transient stability for being unable to quick response system voltage change and raising system.
Invention content
The technical problem to be solved in the present invention and the technical assignment proposed are to overcome existing automatic voltage control system（AVC）
The problems such as response voltage change is slow, it is longer to take and cannot improve power system transient stability provides a kind of AVC and PSVR and coordinates to control
Method processed, the control method can acquire power plant's related electric information, receive dispatching down distributing target voltage instruction, and according to
Internal idle allocation strategy output idle to power plant is subject to reasonably optimizing, and system is improved with the transient change of timely response system voltage
The transient stability of system.
The present invention solves the technical solution that technical problem uses：A kind of AVC and PSVR control method for coordinating, including following
Step：
（1）, the system voltage desired value that issues AVC main websites and generator main transformer high side bus voltage (Us) measuring value it
Absolute value of the difference and preset setting valve are compared；
（2）, work as step（1）Described in absolute value be more than or equal to setting valve when, PSVR systems put into operation, and AVC main websites are issued
System voltage target as PSVR system voltage set-points, and by PSVR system input control AVR, with analog quantity regulative mode
Generator terminal voltage set-point is made adjustments；Or when the absolute value is less than setting valve, the locking of PSVR systems is out of service,
Moment is exited, the output valve of PSVR voltage regulators is added to immediately on the set-point of field regulator, by AVC input controls
AVR makes adjustments generator terminal voltage set-point by increasing and decreasing in a manner of magnetic field impulse.
The system voltage target that control method of the present invention issues the system voltage set-point of PSVR and AVC main websites
It is combined, to reach the real-time optimization of PSVR system voltage set-points, while AVC can acquire power plant's related electric information, connect
The target voltage instruction that scheduled issues, and reasonably optimizing is subject to according to internal idle allocation strategy output idle to power plant, with
The transient change of system voltage is timely responded to, improves the transient stability of system.During work, preset when the absolute value is more than or equal to
Setting valve when, by analog quantity regulative mode regulator generator set end voltage set-point, can quickly excavate generator dynamic nothing
Work(potentiality make generator main transformer high side bus voltage be rapidly achieved the system voltage target that AVC main websites issue；Otherwise when absolute
When value is less than preset setting valve, PSVR systems are out of service, exit moment, and the output valve of voltage regulator is added to immediately
On the set-point of field regulator, AVC passes through conventional field regulator（AVR）To increase and decrease regulator generator generator terminal in a manner of magnetic field impulse
Voltage set-point.In addition, control method of the present invention particular by reactive power impact and can be cut by being verified
It except reactive disturbance is tested, puts into or exits in PSVR systems, observe generator terminal voltage, reactive power respectively and be
Response of the system voltage to disturbance, the validity of authentication control method.
As further improving and supplementing to above-mentioned technical proposal, the present invention uses following technical measures：The step
（1）In default setting valve between 0.01p.u.~0.05p.u..Setting valve in operation can be according to the practical feelings of operation of power networks
Condition is specifically adjusted.
The system voltage target phase that the invention control method issues the system voltage set-point of PSVR with AVC main websites
With reference to reach the real-time optimization of PSVR system voltage set-points, while AVC can acquire power plant's related electric information, receive
The target voltage instruction of dispatching down distributing, and according to internal idle allocation strategy output idle to power plant be subject to reasonably optimizing and
When response system voltage transient change, improve the transient stability of system.
Description of the drawings
Fig. 1：The present invention is adjusted for system voltage（PSVR）Model schematic.
Fig. 2：Control method of the present invention adjusts schematic diagram using analog quantity.
Fig. 3：Control method of the present invention adjusts schematic diagram using increase and decrease magnetic field impulse mode.
Fig. 4：Fig. 2 correspondence system voltage adjusting control logic charts.
Fig. 5：Fig. 3 correspondence system voltage adjusting control logic charts.
Specific embodiment
The present invention is described further with specific embodiment for explanation below in conjunction with the accompanying drawings.
As shown in Fig. 1~5, a kind of AVC and PSVR control method for coordinating include the following steps：
（1）, the system voltage desired value that issues AVC main websites and generator main transformer high side bus voltage (Us) measuring value it
Absolute value of the difference and preset setting valve are compared, and preset setting valve between 0.01p.u.~0.05p.u.；
（2）, work as step（1）Described in absolute value be more than or equal to setting valve when, PSVR systems put into operation, and AVC main websites are issued
System voltage target as PSVR system voltage set-points, and by PSVR system input control AVR, with analog quantity regulative mode
Generator terminal voltage set-point is made adjustments（Referring to Fig. 2 and Fig. 4）；
Or when the absolute value is less than setting valve, the locking of PSVR systems is out of service, by generator main transformer high-voltage side bus electricity
(Us) measuring value is pressed as PSVR system voltage set-points, by AVC input control AVR, to increase and decrease in a manner of magnetic field impulse to generator
Set end voltage set-point makes adjustments（Referring to Fig. 3 and Fig. 5）.
Ug is generator terminal voltage in figure, and Us is system voltage（Generator main transformer high side bus voltage）.
The control method of the present invention mutually ties the system voltage target that the system voltage set-point of PSVR is issued with AVC main websites
It closes, to reach the real-time optimization of PSVR system voltage set-points, while AVC can acquire power plant's related electric information, receive tune
The target voltage instruction issued is spent, and reasonably optimizing is subject to according to internal idle allocation strategy output idle to power plant, with timely
The transient change of response system voltage improves the transient stability of system；When the absolute value is more than or equal to preset setting valve,
Using the system voltage target that AVC main websites issue as PSVR system voltage set-points, adjusted and generated electricity by analog quantity regulative mode
Machine set end voltage set-point can quickly excavate generator dynamic reactive potentiality, make generator main transformer high side bus voltage quick
Reach the system voltage target that AVC main websites issue；Otherwise when absolute value is less than preset setting valve, PSVR systems exit fortune
Row, AVC pass through conventional field regulator（AVR）To increase and decrease regulator generator set end voltage set-point in a manner of magnetic field impulse.
Claims (2)
1. a kind of AVC and PSVR control method for coordinating, include the following steps：
（1）, the system voltage desired value that issues AVC main websites and generator main transformer high side bus voltage (Us) measuring value it
Absolute value of the difference and preset setting valve are compared；
（2）, work as step（1）Described in absolute value be more than or equal to setting valve when, PSVR systems put into operation, and AVC main websites are issued
System voltage target as PSVR system voltage set-points, and by PSVR system input control AVR, with analog quantity regulative mode
Generator terminal voltage set-point is made adjustments；Or when the absolute value is less than setting valve, the locking of PSVR systems is out of service,
Moment is exited, the output valve of PSVR voltage regulators is added to immediately on the set-point of field regulator, by AVC input controls
AVR makes adjustments generator terminal voltage set-point by increasing and decreasing in a manner of magnetic field impulse.
2. AVC according to claim 1 and PSVR control method for coordinating, it is characterized in that the step（1）In it is default whole
Definite value is between 0.01p.u.~0.05p.u..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102430.2A CN108242810A (en) | 2018-02-01 | 2018-02-01 | A kind of AVC and PSVR control method for coordinating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102430.2A CN108242810A (en) | 2018-02-01 | 2018-02-01 | A kind of AVC and PSVR control method for coordinating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108242810A true CN108242810A (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810102430.2A Pending CN108242810A (en) | 2018-02-01 | 2018-02-01 | A kind of AVC and PSVR control method for coordinating |
Country Status (1)
| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08126396A (en) * | 1994-10-19 | 1996-05-17 | Toshiba Corp | Exciter for synchronous machine |
| CN101710738A (en) * | 2009-12-09 | 2010-05-19 | 中国电力科学研究院 | Automatic voltage control system of power plant substation |
| CN102280887A (en) * | 2011-09-01 | 2011-12-14 | 浙江省电力试验研究院 | Voltage regulator connecting and disconnecting method of electric power system |
-
2018
- 2018-02-01 CN CN201810102430.2A patent/CN108242810A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08126396A (en) * | 1994-10-19 | 1996-05-17 | Toshiba Corp | Exciter for synchronous machine |
| CN101710738A (en) * | 2009-12-09 | 2010-05-19 | 中国电力科学研究院 | Automatic voltage control system of power plant substation |
| CN102280887A (en) * | 2011-09-01 | 2011-12-14 | 浙江省电力试验研究院 | Voltage regulator connecting and disconnecting method of electric power system |
Non-Patent Citations (2)
| Title |
|---|
| 俞鸿飞等: "电力***电压调节器PSVR在励磁调节器中的实现", 《水电站机电技术》 * |
| 陈新琪等: "电力***电压调节器原理及试验分析", 《电力***自动化》 * |
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Application publication date: 20180703 |