CN106099973A - A kind of Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit - Google Patents
A kind of Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit Download PDFInfo
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- CN106099973A CN106099973A CN201610495461.XA CN201610495461A CN106099973A CN 106099973 A CN106099973 A CN 106099973A CN 201610495461 A CN201610495461 A CN 201610495461A CN 106099973 A CN106099973 A CN 106099973A
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- gas turbine
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a kind of Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit, trip because of abnormal failure when 2, main transformer high-pressure side chopper, under conditions of the Important Auxiliary equipment such as waste heat boiler meet islet operation, steam turbine continues to keep 3000r/min to run, combustion engine quickly reduces combustion rate, electromotor band station service enters " islet operation ", when unit needed when islet operation is the most grid-connected, signal " combustion engine unit permission islet operation is the most grid-connected " is sent to DCS by turbine control system TCS, then sent out by DCS and instruct to generator control GCP device the same period, Guan Bi TCB1 or TCB2 or TCB1, TCB2 closes, complete grid-connected.The present invention substantially reduces the time of unit and system sectionalizing, improves the economy of unit operation under islet operation operating mode, is worth the unit of the similar mode of connection to be used for reference.
Description
Technical field
The present invention relates to a kind of 3 simultaneous interconnecting implementation methods, specifically a kind of Rhizoma Sparganii M701F4 type unit gas turbine
3 simultaneous interconnecting implementation methods of transformer unit.
Background technology
Existing transformer unit synchronous device and turbine control system (TCS) are generally closed by generator outlet chopper 52G the same period
Lock is grid-connected, it is impossible to realize two, main transformer high-pressure side chopper simultaneous interconnecting.Current all large-scale combustion engine transformer units can only realize sending out
Some simultaneous interconnectings of motor outlet breaker, once occur owing to external cause causes main transformer high side switch to trip, and unit is only
Can cool down at least 2 hours by forced outage, recover could start after main transformer high-pressure side chopper runs, critical power grid security is transported
Row also causes the biggest economic loss to power plant.
Summary of the invention
It is an object of the invention to provide a kind of 3 simultaneous interconnectings of Rhizoma Sparganii M701F4 type unit gas turbine transformer unit real
Existing method, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit, when breaking in 2, main transformer high-pressure side
Road device trips because of abnormal failure, and under conditions of the Important Auxiliary equipment such as waste heat boiler meet islet operation, steam turbine continues to keep
3000r/min runs, and combustion engine quickly reduces combustion rate, and electromotor band station service enters " islet operation ", when unit needs from orphan
When island is run the most grid-connected, turbine control system TCS send signal " combustion engine unit permission islet operation is the most grid-connected " to DCS, so
After sent out the instruction same period to generator control GCP device by DCS, Guan Bi TCB1 or TCB2 or TCB1, TCB2 close, and complete also
Net.
As the present invention further scheme: have employed SID-2X-B select switch+SID-2FY synchronous device.
Compared with prior art, the invention has the beneficial effects as follows: the present invention substantially reduce unit and system sectionalizing time
Between, improve the economy of unit operation under islet operation operating mode, be worth same type units to be used for reference.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of Rhizoma Sparganii M701F4 type unit 3 simultaneous interconnecting implementation methods of gas turbine transformer unit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Referring to Fig. 1, in the embodiment of the present invention, 3 same periods of a kind of Rhizoma Sparganii M701F4 type unit gas turbine transformer unit are also
Net implementation method, trips because of abnormal failure when 2, main transformer high-pressure side chopper, meets isolated island fortune in Important Auxiliary equipment such as waste heat boilers
Under conditions of row, steam turbine continues to keep 3000r/min to run, and combustion engine quickly reduces combustion rate, and electromotor band station service enters " lonely
Island is run ", when unit needed when islet operation is the most grid-connected, turbine control system TCS send signal " combustion engine unit to DCS
Allow the islet operation the most grid-connected ", then sent out the instruction same period to generator control GCP device by DCS, Guan Bi TCB1 or TCB2 or
TCB1, TCB2 close, and complete grid-connected；Have employed SID-2X-B select switch+SID-2FY synchronous device.
Refer to Fig. 1, SID-2X-B select switch and can accept the selector control order realization of manual route selection electronic lock transmission also
The selection of row point and signal switching, it is possible to accept the switching that the DCS man-to-man crawl amount of outputing has controlled to put side by side.For,
Rhizoma Sparganii turbine control system TCS revises by a definite limitation, and in order to safeguard with easy to use, the same period, the selection of point have selected use
The DCS man-to-man crawl amount of outputing realizes.Select switch power supply is DC source, and shares with synchronous device.Select switch can whole day
Wait charging operation, it is possible to short-term is charged, and synchronous device only the same period process charged, the same period process terminate after by select switch time delay
10 seconds (can arrange) disconnects synchronous device power supply afterwards.By reconnaissance signal (including DCS switching signal reconnaissance, on-site manual reconnaissance etc.)
With control instruction (unilateral without pressure, bilateral without pressure, start the same period, test/work, emergency termination same period etc.) by there being source contact side
Formula is sent to synchronous device.Also by hard contact point signal, the point side by side of gating can be passed to DCS and carry out reconnaissance confirmation, it has 8
The manual route selection electronic lock (each electronic lock has independent status indicator lamp) of individual band " uniqueness " locking key, for artificial choosing
Manual route selection during line operation, the selection switch of three gears is automatic route selection, manual route selection for selection or exits shape
State.Select switch has automatic blocking reselection functionality, it is ensured that can only gate a road variable connector, select switch enormously simplify many every time
Individual point arranged side by side shares the wiring design same period of a synchronous device, decreases the construction workload of on-the-spot secondary line.For sending
Outlet is often to go here and there adjacent two series trip device (TCB1/TCB2) and generator configuration outlet breaker in one and half main electrical schemes
During the 52G reconnaissance same period the most easily, therefore, DCS the generator connecting in parallel with system point same period controlled is very important by select switch.
SID-2FY synchronous device, according to the judgement to definite value " with frequency threshold value ", can identify difference frequency or syn-collisional granite automatically.Dress
Put during generator connecting in parallel with system by the algorithm of fuzzy control theory, treat and machine class frequency and voltage are controlled, it is ensured that
Frequency difference and pressure reduction is the most smoothly made to enter setting range soon, it is achieved the most grid-connected.Device is with the tightest mathematical model, really
The zero phase angle occurred for the first time is captured poor when protecting difference frequency grid-connected (electromotor is grid-connected to the circuit between system or two off-the-line systems),
Carry out without impact grid-connected.
During conducting transmission line syn-collisional granite (cyclization), as some merit angle, both sides and pressure reduction will be real immediately less than during setting valve side by side
Execute and net operation, otherwise enter waiting state, and transmit remote signals.When occurring during motor difference frequency is grid-connected with frequency, device
To automatically provide acceleration control command, eliminate with frequency state.It is phase voltage (57.7V) or line electricity that device adapts to TV secondary voltage
Pressure (100V), and possess angle turning function.Device can ensure that and do not occurs reverse-power in the generator grid-connected, has and automatically identifies that point is also side by side
The function of net character, identification is currently that difference frequency is grid-connected or syn-collisional granite (cyclization) i.e. automatically.When difference frequency is grid-connected, control accurately
Mathematical model processed guarantees that device can capture the grid-connected opportunity occurred for the first time with never omitting, and is accurately zero in phase angle difference
Complete without impact grid-connected when spending.During generator connecting in parallel with system, by the algorithm of fuzzy control theory, machine class frequency and voltage are entered
Row automatically controls, it is ensured that the most smoothly make frequency difference and pressure reduction enter setting range, it is achieved the most grid-connected.Entering
After syn-collisional granite process, if merit angle and pressure reduction are all within setting range, device sends out combined floodgate order immediately.
SID-2X-B select switch+SID-2FY synchronous device coordinate realize three the same period point breaker closing function such as Fig. 1,
Situation (mode of connection) 3 same period for 2, main transformer high-pressure side chopper and 1 chopper of generator outlet illustrates.
(1) generator outlet chopper 52G.Selecting the generator outlet chopper point same period on DCS, select switch selects automatically
Select Generator end and main transformer low-pressure side TV C phase voltage is that synchronous voltage introduces synchronous device.The inspection same period is realized by synchronous device
Fixed, complete generator outlet chopper 52G asynchronous switch-on function, this is the mode that this factory is the most grid-connected.
(2) main transformer high-pressure side chopper TCB1.DCS selects the main transformer high-pressure side chopper TCB1 point same period, select switch
Automatically select main transformer high-pressure side TV and 500kVII bus TV C phase voltage is that synchronous voltage introduces synchronous device.By synchronous device
Realize the calibrating same period, complete this chopper asynchronous switch-on function.This is one of the synchronizing mode of abnormal condition.
(3) main transformer high-pressure side chopper TCB2.DCS selects the main transformer high-pressure side chopper TCB2 point same period, select switch
Automatically select main transformer high-pressure side TV and 500kVII bus TV C phase voltage is that synchronous voltage introduces synchronous device.By synchronous device
Realize the calibrating same period, complete this chopper asynchronous switch-on function.This is one of the synchronizing mode of abnormal condition.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (5)
1. Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit, it is characterised in that work as master
Become 2, high-pressure side chopper because of abnormal failure tripping operation, under conditions of the Important Auxiliary equipment such as waste heat boiler meet islet operation, steam turbine
Continuing to keep 3000r/min to run, combustion engine quickly reduces combustion rate, and electromotor band station service enters " islet operation ", works as unit
Need when islet operation is the most grid-connected, turbine control system TCS " combustion engine unit allows islet operation again to send signal to DCS
Grid-connected ", then sent out the instruction same period by DCS and all close to generator control GCP device, Guan Bi TCB1 or TCB2 or TCB1, TCB2,
Complete grid-connected.
Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit the most according to claim 1,
It is characterized in that, have employed SID-2X-B select switch+SID-2FY synchronous device.
Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit the most according to claim 2,
It is characterized in that, described SID-2X-B select switch can accept the selector control order of manual route selection electronic lock transmission and realize side by side
The selection of point and signal switching.
Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit the most according to claim 2,
It is characterized in that, described SID-2X-B select switch power supply is DC source, and shares with synchronous device.
Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit the most according to claim 2,
It is characterized in that, what described SID-2X-B select switch can accept that the DCS man-to-man crawl amount of outputing controlled to put side by side cuts
Change.
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| CN201610495461.XA CN106099973A (en) | 2016-06-29 | 2016-06-29 | A kind of Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit |
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| CN201610495461.XA CN106099973A (en) | 2016-06-29 | 2016-06-29 | A kind of Rhizoma Sparganii M701F4 type 3 simultaneous interconnecting implementation methods of unit gas turbine transformer unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887931A (en) * | 2017-12-25 | 2018-04-06 | 国投钦州发电有限公司 | The more same period point auto-parallel systems of generating set |
| CN110112771A (en) * | 2019-04-16 | 2019-08-09 | 中广核研究院有限公司 | The method and device of nuclear power plant's generator excitation unit detection operation state of generator |
| CN110556875A (en) * | 2018-05-31 | 2019-12-10 | 深圳中广核工程设计有限公司 | Unit synchronization system for large power plant |
| CN111509780A (en) * | 2020-05-07 | 2020-08-07 | 西安邮电大学 | Synchronous constant value adjusting system and method based on transformer transformation ratio |
| CN111541276A (en) * | 2020-05-12 | 2020-08-14 | 西安热工研究院有限公司 | Generator synchronous phasing system and method |
| CN114285072A (en) * | 2021-12-20 | 2022-04-05 | 上海电气燃气轮机有限公司 | Automatic sequential control method, system, terminal and medium for dual-node synchronization grid connection of heavy-duty gas turbine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595041A (en) * | 2013-11-25 | 2014-02-19 | 广东电网公司电力科学研究院 | Monitoring device for rapid load reduction of power plant set and method thereof |
| CN103604114A (en) * | 2013-11-25 | 2014-02-26 | 广东电网公司电力科学研究院 | Rapid water feeding stabilization control method based on boiler water circulation online monitoring system |
| CN104836214A (en) * | 2015-04-17 | 2015-08-12 | 国家电网公司 | Distributed generation-based grid connection transition operation mode coordination comprehensive protection method |
| CN105162086A (en) * | 2015-09-11 | 2015-12-16 | 国家电网公司 | Protection method for DG grid-connected transformer grounding system |
-
2016
- 2016-06-29 CN CN201610495461.XA patent/CN106099973A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595041A (en) * | 2013-11-25 | 2014-02-19 | 广东电网公司电力科学研究院 | Monitoring device for rapid load reduction of power plant set and method thereof |
| CN103604114A (en) * | 2013-11-25 | 2014-02-26 | 广东电网公司电力科学研究院 | Rapid water feeding stabilization control method based on boiler water circulation online monitoring system |
| CN104836214A (en) * | 2015-04-17 | 2015-08-12 | 国家电网公司 | Distributed generation-based grid connection transition operation mode coordination comprehensive protection method |
| CN105162086A (en) * | 2015-09-11 | 2015-12-16 | 国家电网公司 | Protection method for DG grid-connected transformer grounding system |
Non-Patent Citations (1)
| Title |
|---|
| 刘麟等: "发变组多点同期并网功能的实现", 《电工技术》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887931A (en) * | 2017-12-25 | 2018-04-06 | 国投钦州发电有限公司 | The more same period point auto-parallel systems of generating set |
| CN110556875A (en) * | 2018-05-31 | 2019-12-10 | 深圳中广核工程设计有限公司 | Unit synchronization system for large power plant |
| CN110112771A (en) * | 2019-04-16 | 2019-08-09 | 中广核研究院有限公司 | The method and device of nuclear power plant's generator excitation unit detection operation state of generator |
| CN111509780A (en) * | 2020-05-07 | 2020-08-07 | 西安邮电大学 | Synchronous constant value adjusting system and method based on transformer transformation ratio |
| CN111541276A (en) * | 2020-05-12 | 2020-08-14 | 西安热工研究院有限公司 | Generator synchronous phasing system and method |
| CN114285072A (en) * | 2021-12-20 | 2022-04-05 | 上海电气燃气轮机有限公司 | Automatic sequential control method, system, terminal and medium for dual-node synchronization grid connection of heavy-duty gas turbine |
| CN114285072B (en) * | 2021-12-20 | 2023-11-24 | 上海电气燃气轮机有限公司 | Automatic sequential control method, system, terminal and medium for synchronous grid connection of heavy-duty gas turbine at double nodes |
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