CN108105024A - A kind of SFC starts control method - Google Patents
A kind of SFC starts control method Download PDFInfo
- Publication number
- CN108105024A CN108105024A CN201810006383.1A CN201810006383A CN108105024A CN 108105024 A CN108105024 A CN 108105024A CN 201810006383 A CN201810006383 A CN 201810006383A CN 108105024 A CN108105024 A CN 108105024A
- Authority
- CN
- China
- Prior art keywords
- oil pump
- next step
- judge
- switch
- order
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/005—Starting, also of pump-turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
-
- 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
- Y02E10/20—Hydro energy
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Protection Of Generators And Motors (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The present invention relates to a kind of SFC to start control method.SFC Booting sequences are carried out even to drag logical design so that frequency converter logic operation is reliable, and unit starting process is smooth, advantageously ensures equipment safety stable operation.
Description
Technical field
The present invention relates to a kind of SFC to start control method.
Background technology
Hydroenergy storage station static frequency changer（SFC）It is that industrial-frequency alternating current input is become continuously adjustable using thyristor
Generator motor can be dragged to rated speed by frequency-changing AC electricity output device from resting state, be current large-scale pumped storage power electricity
Station draw water direction startup preferred manner, have very important effect.
For meet in case of emergency continuously dragging unit draw water phase modulation it is grid-connected the needs of, SFC Booting sequences can the company of design
Drag logic.
The content of the invention
It is an object of the invention to provide a kind of SFC to start control method so that frequency converter logic operation is reliable, and unit opens
Dynamic process is smooth, advantageously ensures equipment safety stable operation.
To achieve the above object, the technical scheme is that：A kind of SFC starts control method, includes the following steps,
（1.1）Whether just to judge the auxiliary system power supply, control system power supply, tripping relay of pump storage plant generator unit
Often power supply, if performing next step；
（1.2）Judge whether generating set has including failure, tripping, the signal alarmed, if without execution next step；
（1.3）Judge that frequency converter whether in upstate, if so, selecting the motor for the generating set that need to be dragged, and judges
Disconnecting link state, input become cooling oil pump or whether output change oil pump state is normal；If perform next step；
（1.4）It sends and starts dynamotor assistant machine order, judge that fan condition, input become cooling oil pump or output becomes oil pump state
It is whether normal；If so, sending input switch, output switch reclosing command, and judge whether input switch, output switch are closed,
And whether excitation system starts, if performing next step；
（1.5）Excitation set-point is sent by analog quantity channel, receives excitation actual value, discharges pulse, drawing generator group
Motor, judges whether the rotating speed of generating set is more than 10%, if so, switching by-pass knife switch, which is at output, becomes side, dragging hair
For the rotating speed of motor group to 99%, preparation is grid-connected, and performs next step；
（1.6）Increased by monitoring, subtract frequency and the adjusting of ascending, descending voltage signal so that generating set meets same period condition, then opens
It moves next unit or prepares frequency converter and shut down；
（1.7）Judge whether the dragged disconnecting link of next unit is closed, if so, being delayed 5 minutes, judge whether to receive next
The dragged disconnecting link switching signal of unit, if it is not, next step is performed, if performing step（1.5）；
（1.8）Locking pulse command is sent, exciting current is set to 0, input is sent and exports switch separating brake order, is delayed 5 points
Clock sends the order of blowing-out machine, stopping transportation enters to become cooling oil pump order, stopping transportation goes out to become oil pump order.
Compared to the prior art, the invention has the advantages that：The method of the present invention so that frequency converter logic operation can
It leans on, unit starting process is smooth, advantageously ensures equipment safety stable operation.
Description of the drawings
Fig. 1 starts control flow for SFC of the present invention.
Fig. 2 is the flow that SFC of the present invention drags next unit.
Fig. 3 shuts down flow for SFC of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
As shown in Figs. 1-3, a kind of SFC of the invention starts control method, includes the following steps,
（1.1）Whether just to judge the auxiliary system power supply, control system power supply, tripping relay of pump storage plant generator unit
Often power supply, if performing next step；
（1.2）Judge whether generating set has including failure, tripping, the signal alarmed, if without execution next step；
（1.3）Judge that frequency converter whether in upstate, if so, selecting the motor for the generating set that need to be dragged, and judges
Disconnecting link state, input become cooling oil pump or whether output change oil pump state is normal；If perform next step；
（1.4）It sends and starts dynamotor assistant machine order, judge that fan condition, input become cooling oil pump or output becomes oil pump state
It is whether normal；If so, sending input switch, output switch reclosing command, and judge whether input switch, output switch are closed,
And whether excitation system starts, if performing next step；
（1.5）Excitation set-point is sent by analog quantity channel, receives excitation actual value, discharges pulse, drawing generator group
Motor, judges whether the rotating speed of generating set is more than 10%, if so, switching by-pass knife switch, which is at output, becomes side, dragging hair
For the rotating speed of motor group to 99%, preparation is grid-connected, and performs next step；
（1.6）Increased by monitoring, subtract frequency and the adjusting of ascending, descending voltage signal so that generating set meets same period condition, then opens
It moves next unit or prepares frequency converter and shut down；
（1.7）Judge whether the dragged disconnecting link of next unit is closed, if so, being delayed 5 minutes, judge whether to receive next
The dragged disconnecting link switching signal of unit, if it is not, next step is performed, if performing step（1.5）；
（1.8）Locking pulse command is sent, exciting current is set to 0, input is sent and exports switch separating brake order, is delayed 5 points
Clock sends the order of blowing-out machine, stopping transportation enters to become cooling oil pump order, stopping transportation goes out to become oil pump order.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made
During with scope without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.
Claims (1)
1. a kind of SFC starts control method, it is characterised in that：Include the following steps,
（1.1）Whether just to judge the auxiliary system power supply, control system power supply, tripping relay of pump storage plant generator unit
Often power supply, if performing next step；
（1.2）Judge whether generating set has including failure, tripping, the signal alarmed, if without execution next step；
（1.3）Judge that frequency converter whether in upstate, if so, selecting the motor for the generating set that need to be dragged, and judges
Disconnecting link state, input become cooling oil pump or whether output change oil pump state is normal；If perform next step；
（1.4）It sends and starts dynamotor assistant machine order, judge that fan condition, input become cooling oil pump or output becomes oil pump state
It is whether normal；If so, sending input switch, output switch reclosing command, and judge whether input switch, output switch are closed,
And whether excitation system starts, if performing next step；
（1.5）Excitation set-point is sent by analog quantity channel, receives excitation actual value, discharges pulse, drawing generator group
Motor, judges whether the rotating speed of generating set is more than 10%, if so, switching by-pass knife switch, which is at output, becomes side, dragging hair
For the rotating speed of motor group to 99%, preparation is grid-connected, and performs next step；
（1.6）Increased by monitoring, subtract frequency and the adjusting of ascending, descending voltage signal so that generating set meets same period condition, then opens
It moves next unit or prepares frequency converter and shut down；
（1.7）Judge whether the dragged disconnecting link of next unit is closed, if so, being delayed 5 minutes, judge whether to receive next
The dragged disconnecting link switching signal of unit, if it is not, next step is performed, if performing step（1.5）；
（1.8）Locking pulse command is sent, exciting current is set to 0, input is sent and exports switch separating brake order, is delayed 5 points
Clock sends the order of blowing-out machine, stopping transportation enters to become cooling oil pump order, stopping transportation goes out to become oil pump order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006383.1A CN108105024B (en) | 2018-03-07 | 2018-03-07 | SFC starting control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006383.1A CN108105024B (en) | 2018-03-07 | 2018-03-07 | SFC starting control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108105024A true CN108105024A (en) | 2018-06-01 |
| CN108105024B CN108105024B (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810006383.1A Active CN108105024B (en) | 2018-03-07 | 2018-03-07 | SFC starting control method |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117375088A (en) * | 2023-11-15 | 2024-01-09 | 南方电网调峰调频发电有限公司检修试验分公司 | SFC system continuous dragging energy storage unit method and device, SFC system and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155883A (en) * | 2014-06-12 | 2014-11-19 | 国家电网公司 | Starting control method for static frequency converter (SFC) of pump storage group |
| CN105932701A (en) * | 2016-06-12 | 2016-09-07 | 武汉大学 | Optimization configuration method for pumped storage multi-unit shared SFC starting station service power supply |
-
2018
- 2018-03-07 CN CN201810006383.1A patent/CN108105024B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155883A (en) * | 2014-06-12 | 2014-11-19 | 国家电网公司 | Starting control method for static frequency converter (SFC) of pump storage group |
| CN105932701A (en) * | 2016-06-12 | 2016-09-07 | 武汉大学 | Optimization configuration method for pumped storage multi-unit shared SFC starting station service power supply |
Non-Patent Citations (2)
| Title |
|---|
| 王熙、刘聪、冯刚声: "静止变频器（SFC）启动机组泵工况过程浅析", 《继电保护原理及控制技术的研究与探讨-发电侧》 * |
| 邱雪俊、汪卫平: "抽水蓄能电站静止变频器运行及故障分析", 《抽水蓄能电站自动控制技术研究与应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117375088A (en) * | 2023-11-15 | 2024-01-09 | 南方电网调峰调频发电有限公司检修试验分公司 | SFC system continuous dragging energy storage unit method and device, SFC system and storage medium |
| CN117375088B (en) * | 2023-11-15 | 2024-04-02 | 南方电网调峰调频发电有限公司检修试验分公司 | SFC system continuous dragging energy storage unit method and device, SFC system and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108105024B (en) | 2020-06-26 |
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