CN110259522A - A kind of method of fast lifting Steam Turbine load responding speed - Google Patents
A kind of method of fast lifting Steam Turbine load responding speed Download PDFInfo
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- CN110259522A CN110259522A CN201910441444.1A CN201910441444A CN110259522A CN 110259522 A CN110259522 A CN 110259522A CN 201910441444 A CN201910441444 A CN 201910441444A CN 110259522 A CN110259522 A CN 110259522A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
Abstract
The embodiment of the invention discloses a kind of methods of fast lifting Steam Turbine load responding speed, the method are as follows: in utilization steam turbine pitch linearisation assay optimization and assessment steam turbine pitch on the basis of regulating power in each load section, it is analyzed by therrmodynamic system and quantifies to determine that condensing water flow is mutated the heat regenerative system heat storage capacity to be formed variation to the capability of influence of unit load, load section and the amplitude of accommodation occurred are instructed further according to Load Regulation, utilize thermal control logic pro-active intervention condensing water flow, to change the quantity of steam in steam turbine, the instruction of generating set load adjustment is sent by AGC, DCS control system executes instruction, adjust condensing water flow, change the quantity of steam in steam turbine, realize the quick adjustment of generating set load.The present invention solves the problems, such as that existing Steam Turbine load responding is slow-footed.
Description
Technical field
The present embodiments relate to generator set control technical fields, and in particular to a kind of fast lifting Steam Turbine load
The method of response speed.
Background technique
The difficulty of the fired power generating unit thermal technics of the coordinated control of large-size thermal power plant boiler turbine monoblock
Point, thermal power industry need to be promoted the generation load speed of response.It is substantially increased for generation of electricity by new energy ability, power grid is to thermoelectricity
Unit load responding ability proposes the actual conditions of requirements at the higher level, according to the practical power output of unit and the deviation of system requirements load into
Row is adjusted, and traditional regulative mode carrys out Load adjustment capacity from the variation of boiler side combustion rate, but since there are load delays, adjusts
Low efficiency is saved, adjustment cost is high, and main steam pressure fluctuation is big.In the actual production process, the variation according to network load is needed,
It is adjusted in time, increasing productivity response speed.
Changed in the prior art according to system AGC load instruction, deaerator level is instructed, boiler-turbine coordinated control system is added
System realizes 3*3 coupling control, and then causes condensing water flow variation and load variations, meets power grid demand, needs to entire
DCS control system coordinated control logic is modified, and adjustment process is relatively complicated.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of method of fast lifting Steam Turbine load responding speed, it is existing to solve
There is the slow-footed problem of Steam Turbine load responding.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions:
The embodiment of the invention discloses a kind of methods of fast lifting Steam Turbine load responding speed, are utilizing steam turbine
Pitch linearizes assay optimization and assessment steam turbine pitch on the basis of regulating power in each load section, passes through therrmodynamic system point
Analysis quantifies to determine that condensing water flow is mutated the heat regenerative system heat storage capacity to be formed variation to the capability of influence of unit load, further according to
Load Regulation instructs load section and the amplitude of accommodation occurred, using thermal control logic pro-active intervention condensing water flow, to change
Quantity of steam in steam turbine sends the instruction of generating set load adjustment by AGC, and DCS control system executes instruction, and adjusts condensation
Water flow changes the quantity of steam in steam turbine, realizes the quick adjustment of generating set load.
Further, the adjusting condensing water flow process are as follows: condensed water heats after condensation pump boosting by seven-eight grades
Boiler is supplied after device heating, shut-off valve and non-return valve are installed on each extraction line, in the case where steam turbine operating condition is constant, when
Condensing water flow reduces, and the thermal balance of this grade of heater is broken, and the heat supply of steam extraction amount is greater than the heat demand of cooling water inflow,
Heater pressure increases, and the differential pressure between extracted steam from turbine point and heater reduces, and steam extraction amount is reduced, and extra steam enters steamer
The shaft power of the next stage group expansion work of machine, steam turbine rises, and generating set load rises；Conversely, condensing capacity flow increases
Add, heater pressure decline, steam extraction differential pressure increases, and steam extraction amount increases, and the quantity of steam into next stage group expansion work is reduced, vapour
The decline of turbine shaft power, the decline of generating set load.
Further, the steam extraction amount is centainly being condensed in the pressure of the exhaust point with corresponding heater depending on steam turbine
Difference between the cooling lower pressure maintained of water.
Further, the condensing water flow is adjusted according to the variation of generating set load, and condensing water flow determines
Method are as follows:
Based on Turbo-generator Set thermodynamic equilibrium figure, carry out equivalent enthalpy drop calculating, calculate declared working condition under #8,7,6,
5,4 sections of steam extraction equivalent enthalpy drops are respectively △ H8, △ H7, △ H6, △ H5, △ H4, carry out respectively the low-pressure heater of #8,7,6,5 and
Thermal equilibrium analysis of the oxygen-eliminating device when condensed water changes 100g/h, 150t/h, 200t/h, 250t/h, 300t/h, calculating pair
Steam extraction amount variation Q8, Q7, Q6, Q5, Q4 that should be influenced, by shaft power changing value △ W=△ H8*Q8+ △ H7*Q7+ △ H6*Q6+
△ H5*Q5+ △ H4*Q4, generator outlet power change values △ P=△ W* η fd, wherein η fd is generator efficiency, is computed repeatedly
Condensing water flow variation under 90%ECR, 80%ECR accidental conditions influences generator outlet performance number.
Further, the condensing water flow determines method further include: according to the water capacity and cross-sectional area of oxygen-eliminating device, product
Divide and calculate the corresponding condensing water flow of the micro- increasing of water level under ordinary water level, according to the condensed water permitted in deaerator level normal range (NR)
Changes in flow rate and permission duration, determine the maximum condensing water flow change value △ Gn permitted under each operating condition；
Deaerator level limiting value L max and L the min boundary condition that test allows logic to put into.
Further, the condensed water adjustment process meets deaerator level and balances and continue to meet and steam to boiler water supply
Hair amount demand and systematic working medium balance, are adjusted, condensed water regulative mode according to the variation of unit load and main steam flow
For water regulating valve flow restriction control on condensation pump high-voltage frequency converter gearshift adjustment and/or oxygen-eliminating device.
Further, water regulating valve passes through controller on condensation pump high-voltage frequency converter and/or oxygen-eliminating device and DCS is controlled
System connection processed, DCS control system execute the generating set load adjustment instruction that AGC is sent.
The embodiment of the present invention has the advantages that
The embodiment of the invention discloses a kind of methods of fast lifting Steam Turbine load responding speed, become condensing water flow
It influences load technique and mainly passes through rationally setting AGC and primary frequency modulation instruction threshold, selective actuation includes condenser frequency conversion tune
The full load section condensed water Quick Adjustment of water valve valve event on section and oxygen-eliminating device realizes high underload difference condensation water flow
Change ratio is measured, meeting load responding, rationally control action number, reduction influence the impact of therrmodynamic system simultaneously, it is ensured that should
Technology can long-term safety, reliably put into operation, reduce load responding require it is excessively high and be forced excessively to promote boiler and powder processed
System transient modelling power output fluctuation and influence caused by therrmodynamic system.Be related to logic change range it is small, security risk is small, field adjustable
Workload is small, artificial less investment, can satisfy auxiliary at present and meets current power grid " two detailed rules and regulations " management to AGC responding ability
It is required that promoting primary frequency modulation responding ability, reduce because AGC amplitude of variation is big and primary frequency modulation requires the excessively high heating power that may cause
The problems such as system acting amplitude is excessive, the movement overfrequency of thermal parameter unstability, unit homophony section door, is substantially improved power grid examination
AGC responds compliance rate and primary frequency modulation responds compliance rate.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is a kind of oxygen-eliminating device of the method for fast lifting Steam Turbine load responding speed provided in an embodiment of the present invention
Water level control logic chart；
Fig. 2 is a kind of condensed water of the method for fast lifting Steam Turbine load responding speed provided in an embodiment of the present invention
Flow control logic figure；
Fig. 3 is a kind of condensed water of the method for fast lifting Steam Turbine load responding speed provided in an embodiment of the present invention
Flow control principle block diagram；
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, present embodiment discloses a kind of sides of fast lifting Steam Turbine load responding speed
Method, on the basis using steam turbine pitch linearisation assay optimization and assessment steam turbine pitch regulating power in each load section
On, it is analyzed by therrmodynamic system and quantifies to determine that condensing water flow is mutated the heat regenerative system heat storage capacity to be formed and changes to unit load
Capability of influence, instruct load section and the amplitude of accommodation occurred further according to Load Regulation, utilize thermal control logic pro-active intervention
Condensing water flow sends the instruction of generating set load adjustment, DCS control system by AGC to change the quantity of steam in steam turbine
System executes instruction, and adjusts condensing water flow, changes the quantity of steam in steam turbine, realizes the quick adjustment of generating set load.
AGC is built upon using computer as the Energy Management System of core or dispatch automated system and generator group coordination
Control system and the Remote closed loop control system connected by the highly reliable information transmission system.
AGC is to make the generated output of electric system and power load phase for the purpose of meeting power supply and demand Real-time Balancing
Match, to realize that high quality electric energy is supplied.Its basic task is to realize following target:
(1) maintain power system frequency within the scope of allowable error, electroclock caused by frequency shift (FS) accumulated error and mark
The time difference between quasi- clock is within prescribed limits；
(2) control interconnected network exchanges power only and is worth operation according to plan, exchanges power accumulation error and causes to exchange electricity unintentionally
Amount is within allowed band；
(3) it is assisted in the case where meeting power system security constraints condition, mains frequency and interconnected network and exchanging power planning only
Adjust the power plant's (unit) for participating in AGC adjusting by marketing or the optimization operation of economic load dispatching principle.
After AGC puts into operation, LOAD FREQUENCY control (LFC) is run repeatedly according to the preset period, workflow
It is as follows:
(1) current frequency telemetry value and and frequency reference are extracted from SCADA real-time data base according to selected ACE algorithm
Value compares, and calculates frequency departure；Extracted from SCADA real-time data base the aggregate value of current Tie line Power and with
Interconnection exchanges power planning value only and compares, and calculates interconnection active power deviation, finds out RAW ACE；
(2) it enables low-pass filter to be filtered RAW ACE, the time difference, error compensation and trend prediction is carried out to ACE and repaired
Just obtaining the ACE end value that can be used for adjusting control；
(3) control zone for judging ACE size and falling into determines control strategy, calculates the active power of control area
It is required that and standardization distribution coefficient.
(4) it is calculated separately according to the mode combinations combination distribution coefficient that current control zone and unit participate in adjusting each controlled
The expectation power generation values of generating set, compare desired power generation values and actual power calculates unit control deviation and judges the increase and decrease of power
Direction；
(5) the control period is calculated to decide whether according to unit regulations speed but issues regulating command to unit, if fruit
Unit last time regulating cycle terminates, then through telecontrol channel to power plant controller (PLC) or directly to train unit controller
(LCU) regulating command is issued, otherwise waiting for regulating cycle terminates；
(6) power plant controller (PLC) or train unit controller (LCU) receive regulating command and respond.
(7) unit actual generation power is extracted from SCADA real-time data base, calculates intended response situation.
Adjust condensing water flow process are as follows: condensed water supplies after seven-eight grades of heaters heat after condensation pump boosting
Boiler is equipped with shut-off valve and non-return valve on each extraction line, and in the case where steam turbine operating condition is constant, steam extraction amount depends on vapour
Pressure and corresponding heater difference in the case where certain condensing water flow cooling maintainable pressure between of the turbine in the exhaust point.
When condensing water flow reduces, the thermal balance of this grade of heater is broken, and the heat that the heat supply of steam extraction amount is greater than cooling water inflow needs
It asks, heater pressure increases, and the differential pressure between extracted steam from turbine point and heater reduces, and steam extraction amount is reduced, and extra steam enters
The shaft power of the next stage group expansion work of steam turbine, steam turbine rises, and generating set load rises；Conversely, condensing capacity stream
Amount increases, and heater pressure decline, this grade of steam extraction differential pressure increases, and steam extraction amount increases, into the steam of next stage group expansion work
Amount is reduced, the decline of turbine shaft power, the decline of generating set load.
Condensing water flow is adjusted according to the variation of generating set load, and condensing water flow determines method are as follows:
Based on Turbo-generator Set thermodynamic equilibrium figure, carry out equivalent enthalpy drop calculating, calculate declared working condition under #8,7,6,
5,4 sections of steam extraction equivalent enthalpy drops are respectively △ H8, △ H7, △ H6, △ H5, △ H4, carry out respectively the low-pressure heater of #8,7,6,5 and
Thermal equilibrium analysis of the oxygen-eliminating device when condensed water changes 100g/h, 150t/h, 200t/h, 250t/h, 300t/h, calculating pair
Steam extraction amount variation Q8, Q7, Q6, Q5, Q4 that should be influenced, by shaft power changing value △ W=△ H8*Q8+ △ H7*Q7+ △ H6*Q6+
△ H5*Q5+ △ H4*Q4, generator outlet power change values △ P=△ W* η fd, wherein η fd is generator efficiency, is computed repeatedly
Condensing water flow variation under 90%ECR, 80%ECR accidental conditions influences generator outlet performance number；
According to the water capacity and cross-sectional area of oxygen-eliminating device, under integral calculation ordinary water level, water level is micro- increases corresponding condensation water flow
Amount changes according to the condensing water flow permitted in deaerator level normal range (NR) and allows the duration, determines and is permitted under each operating condition
Can maximum condensing water flow change value △ Gn；
Deaerator level limiting value L max and L the min boundary condition that test allows logic to put into.
Below by taking 4*300MW unit as an example, it is described in detail:
1, condensing water flow variation influences unit load capability analysis；
According to N300-16.7/537/537-V type unit thermodynamic equilibrium map analysis provided by the steam turbine company of east,
Under T-ECR operating condition, each steam extraction section pressure and temperature of low pressure (LP) cylinder and each steam extraction section equivalent enthalpy drop calculated according to equivalent enthalpy drop method
It is as follows:
| Exhaust point | Unit | Five sections | Six sections | Seven sections | Eight sections |
| Pressure | MPa | 0.458 | 0.255 | 0.128 | 0.061 |
| Temperature | ℃ | 274.8 | 210.6 | 143.4 | 86.4 |
| Extraction flow | T/h | 25.69 | 24.73 | 23.26 | 51.32 |
| Equivalent enthalpy drop | Kj/kg | 605.9 | 499.8 | 385.1 | 284.6 |
When condensing water flow quickly reduces, steam condensation ability declines in each low-pressure heater, and heater pressure is promoted,
The decline of steam extraction amount, when simplifying calculating condensing water flow by 780t/h decline 300t/h to 480t/h, change rate 42.4%, theory is pushed away
5678 sections of steam extraction amounts variation proportional to condensing water flow known to leading under stable state, each section of steam extraction reduce the downward level-one stream of magnitude
It is dynamic to continue to do work, cause turbine end power output to rise about 8.87MW, change rate is about 3%, is able to satisfy " two detailed rules and regulations " AGC completely
Respond inception requirements 0.5% requires.
2, condensing water flow is significantlyd change to unit safety impact analysis；
When condensing water flow variation, oxygen-eliminating device outlet is constant for confluent, and condensing water flow reduction will cause oxygen-eliminating device
Inlet and outlet water generates imbalance, influences deaerator level.Through volume calculations, nearby moisture storage capacity is 2.9- to oxygen-eliminating device ordinary water level
3.15t/ (100*mm), it is that 5t/min influences SEA LEVEL VARIATION about when maximum adjusts 90s that condensing capacity, which changes 300t/h reduced value,
200mm will not threaten safely to oxygen-eliminating device in ordinary water level variation range.
Oxygen-eliminating device water storage volume prevented condensing water flow change caused by heat regenerative system variation continue up trip backheat add
Hot device transmitting, so feedwater flow remains unchanged, all high-pressure heater working conditions are not changed shadow by condensing water flow substantially
It rings.
Eight sections of extraction flow maximums in all low-pressure heaters, the extraction flow changing value that whens practical adjustments responds is also most
Greatly, it so to No. eight low plus water level has some impact on, is positively retained within just upper range of stage through field demonstration,
Water level protection is not caused to act.
3, practical condensed water changeable flow adjustment implementation method；
Condensed water changeable flow adjustment, which influences unit load variation, can meet two aspect requirements, one is unit is substantially improved
AGC load responding ability；The second is participating in the load change demand under unit primary frequency modulation operating condition, it is qualified to promote primary frequency modulation
Rate.
The present invention influences load technique by becoming condensing water flow, main by the way that AGC and primary frequency modulation instruction is rationally arranged
Threshold, selective actuation include the fast velocity modulation of full load section condensed water of water valve valve event on condenser variable frequency adjustment and oxygen-eliminating device
Section technology realizes that high underload difference condensing water flow changes ratio, meets load responding reasonable control action number simultaneously, subtracts
It is few that the impact of therrmodynamic system is influenced, it is ensured that the technology can long-term safety, reliably put into operation, reduction load responding is wanted
It asks excessively high and is forced excessively to promote the fluctuation caused by therrmodynamic system of boiler and pulverized coal preparation system transient state power output and influence.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (7)
1. a kind of method of fast lifting Steam Turbine load responding speed, which is characterized in that the method are as follows: utilizing steamer
Machine pitch linearizes assay optimization and assessment steam turbine pitch on the basis of regulating power in each load section, passes through therrmodynamic system
Analysis quantifies to determine that condensing water flow is mutated the heat regenerative system heat storage capacity to be formed variation to the capability of influence of unit load, then root
Load section and the amplitude of accommodation occurred are instructed according to Load Regulation, using thermal control logic pro-active intervention condensing water flow, to change
Become the quantity of steam in steam turbine, the instruction of generating set load adjustment is sent by AGC, DCS control system executes instruction, and adjusts solidifying
Flow is born water, the quantity of steam in steam turbine is changed, realizes the quick adjustment of generating set load.
2. a kind of method of fast lifting Steam Turbine load responding speed as described in claim 1, which is characterized in that described
Adjust condensing water flow process are as follows: condensed water supplies boiler after seven-eight grades of heaters heat after condensation pump boosting, each to take out
Steam pipe is equipped with shut-off valve and non-return valve on road, in the case where steam turbine operating condition is constant, when condensing water flow reduction, heater
Thermal balance break, the supply of the heat of steam extraction amount is greater than the heat demand of cooling water inflow, and heater pressure increases, extracted steam from turbine
Differential pressure between point and heater reduces, and steam extraction amount is reduced, and extra steam enters the next stage group expansion work of steam turbine, steamer
The shaft power of machine rises, and generating set load rises；Conversely, condensing capacity flow increases, and heater pressure decline, steam extraction differential pressure
Increase, steam extraction amount increases, and the quantity of steam into next stage group expansion work is reduced, the decline of turbine shaft power, and generating set is negative
Lotus decline.
3. a kind of method of fast lifting Steam Turbine load responding speed as claimed in claim 2, which is characterized in that described
Steam extraction amount depends on steam turbine between the pressure that the pressure of the exhaust point is maintained with corresponding heater in the case where condensed water is cooling
Difference.
4. a kind of method of fast lifting Steam Turbine load responding speed as claimed in claim 2, which is characterized in that described
Condensing water flow is adjusted according to the variation of generating set load, and condensing water flow determines method are as follows:
Based on Turbo-generator Set thermodynamic equilibrium figure, equivalent enthalpy drop calculating is carried out, calculates #8,7,6,5,4 under declared working condition
Section steam extraction equivalent enthalpy drop is respectively △ H8, △ H7, △ H6, △ H5, △ H4, carries out the low-pressure heater of #8,7,6,5 and deoxygenation respectively
Thermal equilibrium analysis of the device when condensed water changes 100g/h, 150t/h, 200t/h, 250t/h, 300t/h calculates corresponding shadow
Loud steam extraction amount changes Q8, Q7, Q6, Q5, Q4, by shaft power changing value △ W=△ H8*Q8+ △ H7*Q7+ △ H6*Q6+ △ H5*
Q5+ △ H4*Q4, generator outlet power change values △ P=△ W* η fd, wherein η fd is generator efficiency, computes repeatedly 90%
Condensing water flow variation under ECR, 80%ECR accidental conditions influences generator outlet performance number.
5. a kind of method of fast lifting Steam Turbine load responding speed as claimed in claim 4, which is characterized in that described
Condensing water flow determines method further include: according to the water capacity and cross-sectional area of oxygen-eliminating device, water level under integral calculation ordinary water level
It is micro- to increase corresponding condensing water flow, when being changed according to the condensing water flow permitted in deaerator level normal range (NR) and allowing to continue
Between, determine the maximum condensing water flow change value △ Gn permitted under each operating condition；
Deaerator level limiting value L max and L the min boundary condition that test allows logic to put into.
6. a kind of method of fast lifting Steam Turbine load responding speed as claimed in claim 2, which is characterized in that described
Condensed water adjustment process meets deaerator level and balances and continue to meet evaporation capacity demand to boiler water supply and systematic working medium is flat
Weighing apparatus, is adjusted according to the variation of unit load and main steam flow, and condensed water regulative mode is that condensation pump high-voltage frequency converter becomes
Water regulating valve flow restriction control on velocity modulation section and/or oxygen-eliminating device.
7. a kind of method of fast lifting Steam Turbine load responding speed as claimed in claim 6, which is characterized in that described
Water regulating valve passes through controller and connect with DCS control system in condensation pump high-voltage frequency converter and/or oxygen-eliminating device, DCS control system
System executes the generating set load adjustment instruction that AGC is sent.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635521A (en) * | 2019-09-30 | 2019-12-31 | 国网辽宁省电力有限公司电力科学研究院 | Fair coordination control method and system based on electric quantity and reserve capacity |
| CN113153463A (en) * | 2021-04-09 | 2021-07-23 | 华电电力科学研究院有限公司 | Method for improving load response speed of steam turbine set by using water supply system |
| CN113153464A (en) * | 2021-04-09 | 2021-07-23 | 华电电力科学研究院有限公司 | Method for increasing load response speed of steam turbine set by using condensate system |
| CN113217130A (en) * | 2021-03-17 | 2021-08-06 | 西安热工研究院有限公司 | Deaerator and condenser hot well capacity selection method based on condensed water frequency modulation |
| CN113756895A (en) * | 2021-08-16 | 2021-12-07 | 西安交通大学 | Control method for improving flexibility of coal-fired unit through condensate throttling |
| CN113883494A (en) * | 2021-08-18 | 2022-01-04 | 广东粤电靖海发电有限公司 | Coal-fired power plant condensate pump frequency conversion decoupling control system and method |
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| CN110635521A (en) * | 2019-09-30 | 2019-12-31 | 国网辽宁省电力有限公司电力科学研究院 | Fair coordination control method and system based on electric quantity and reserve capacity |
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| CN113883494A (en) * | 2021-08-18 | 2022-01-04 | 广东粤电靖海发电有限公司 | Coal-fired power plant condensate pump frequency conversion decoupling control system and method |
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