CN110165716A - A method of improving hydraulic turbine primary frequency modulation contributing electricity - Google Patents
A method of improving hydraulic turbine primary frequency modulation contributing electricity Download PDFInfo
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- CN110165716A CN110165716A CN201910365915.5A CN201910365915A CN110165716A CN 110165716 A CN110165716 A CN 110165716A CN 201910365915 A CN201910365915 A CN 201910365915A CN 110165716 A CN110165716 A CN 110165716A
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- 230000005611 electricity Effects 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 14
- 238000012546 transfer Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 11
- 230000001276 controlling effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 5
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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
-
- H02J3/382—
-
- 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
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
-
- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- 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
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- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
- Control Of Water Turbines (AREA)
Abstract
A method of improve hydraulic turbine primary frequency modulation contributing electricity, comprising the following steps: 1) on the basis of hydraulic turbine primary frequency modulation Controlling model be added frequency difference compensation tache, and arrive primary frequency modulation theoretical power (horse-power) actuating quantity and primary frequency modulation closed loop transfer function,；2) math equation of speed-regulating system primary frequency modulation process and hydraulic prime mover, generator is analyzed, establishes hydro-generating Unit primary frequency modulation process simulation model；3) actual frequency difference compensation factor is determined, the primary frequency modulation closed loop transfer function, after addition compensation tache to obtain the complete corresponding hydraulic turbine.The purpose of the present invention is to solve in the primary frequency modulation of Large Hydroelectric Set, since unit water conservancy inertia is big, and primary frequency modulation actuating quantity is small, the time is short, so that often just terminating Primary regulation when the power of the assembling unit has not yet been reached and adjusts target, eventually leads to primary frequency modulation device electricity and be difficult to the technical issues of meeting grid requirements.
Description
Technical field
The invention belongs to hydraulic turbine control system fields, and in particular to a kind of to improve hydraulic turbine primary frequency modulation contributing electricity
Method.
Background technique
According to the paragraph clause in " be incorporated into the power networks management implementation detailed rules and regulations in southern region power plant " about primary frequency modulation, " electricity
Net operation criterion " (GB/T 31464-2015) power grid ancillary service clause is to the regulation of primary frequency modulation, and primary frequency modulation is as power grid
The means of frequency control, examining computation method are as follows:
The device electricity Qr of unit primary frequency modulation movement reach theoretical movement device electricity Qt 50% to be judged to movement qualified,
Calculation method is as follows:
Wherein, Pk is practical power output, it is contemplated that the transmission delay of the active data of power plant to dispatching terminal, number of contributing when calculating
According to being pushed forward 2 seconds, test can directly take i.e. moment value in this programme；Pks is integral initial output, and integral initial time is frequency mistake
Dead time, integral end time are the time (threshold limit value 1 minute) that frequency returns to dead zone；F is system frequency and standard frequency
The difference of rate, f0 are unit primary frequency modulation operating dead zone frequency threshold；Bp is generating unit speed diversity factor；Sk is the specified appearance of unit
Amount.
Consider that the flow characteristics of Hydropower Unit have lag and water hammer effect, especially for huge water wheel unit, once
After frequency modulation movement, guide vane, which starts to act to changed power, reaches delay time of target value in 10s or more, simultaneously because the hydraulic turbine
The effects of speed-regulating system adjustment process dead zone, causes hydroelectric units primary frequency modulation contribution score electricity to be difficult to reach grid requirements.
Summary of the invention
The purpose of the present invention is to solve in the primary frequency modulation of Large Hydroelectric Set, due to unit water conservancy inertia
Greatly, and primary frequency modulation actuating quantity is small, the time is short so that often just terminating once to adjust when the power of the assembling unit has not yet been reached and adjusts target
Section, eventually leads to primary frequency modulation device electricity and is difficult to the technical issues of meeting grid requirements.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A method of improving hydraulic turbine primary frequency modulation contributing electricity, comprising the following steps:
1) be added frequency difference compensation tache on the basis of hydraulic turbine primary frequency modulation Controlling model, and it is theoretical to primary frequency modulation
Power actuating quantity and primary frequency modulation closed loop transfer function,；
2) math equation of speed-regulating system primary frequency modulation process and hydraulic prime mover, generator is analyzed, establishes water
Power generator group primary frequency modulation process simulation model；
3) actual frequency difference compensation factor is determined, it is primary after the addition compensation tache to obtain the complete corresponding hydraulic turbine
Frequency modulation closed loop transfer function,.
The primary election for carrying out power compensation factor by simulation calculation regulating effect in step 2), will emulation in step 3)
Primary election result be applied to physical device carry out primary frequency modulation verified, more each parameter next time frequency modulation to different frequency differences
The response regulation time of value, contributing electricity finally determine actual frequency difference compensation factor.
In step 1), after frequency difference compensation tache is added, primary frequency modulation theoretical power (horse-power) actuating quantity are as follows:
λ is frequency difference compensation factor in formula；
Primary frequency modulation closed loop transfer function, after compensation tache is added is as follows:
Rated power S in step 2), when carrying out the primary election of power compensation factor, during primary frequency modulationk, unit
Speed governor droop bp, PID control GPID, hydraulic actuating mechanism Gy, hydraulic prime mover Gw, generator GgThe parameter of link is directly quoted
Design value and actual parameter.
In step 2), the frequency difference compensation factor parameter identification tie-in equation are as follows: λ=[t Q* Δ f bp Sk Gpid
Gy Gw Gg], t is that primary frequency modulation operating power is adjusted to the stable regulation time, and Q* is primary frequency modulation actual contribution electricity and reason
By electricity, Δ f is primary frequency modulation frequency difference.
A method of hydraulic turbine primary frequency modulation contributing electricity being improved, for the hydrogenerator using electrohydaulic speed governor system
Group, when realizing frequency difference compensation, using following steps:
In a control program, a variable Frequency_Gain is defined, as frequency difference compensation factor, and defines logic such as
Under:
If -50 │ of absolute value │ mains frequency > primary frequency modulation dead zone, start the calculating of primary frequency modulation frequency difference, otherwise frequency difference
=0；
After starting frequency difference calculating:
If mains frequency > 50Hz,
Then frequency difference=mains frequency -50+0.01*Frequency_Gain；
If mains frequency < 50Hz,
Then frequency difference=mains frequency -50-0.01*Frequency_Gain.
Define a communication variables T, communication variables T can be communicated with speed-regulating system man-machine interface, attribute be set as it is readable can
It writes, enables Frequency_Gain=T, the value of T is assigned to Frequency_Gain, the function logic for completing frequency difference compensation tache is compiled
Journey.
A button and a variable I are defined in speed-regulating system electric part man-machine interface program, and there is modification authority
User log in after, when button is pressed, the value of I is equal to user's write-in value, when button disconnects, I=0.The value write-in of I is logical
Dot address where interrogating variable T realizes that user throws frequency difference compensation and moves back function and frequency difference compensation factor modification function.
It is operated using PLC controller.
The beneficial effects of the present invention are:
During the present invention provides one kind on the basis of original large-sized water turbine unit speed-regulating system primary frequency modulation controlling unit
The technical solution of compensation tache is added, power regulation and adjustment speed are effectively improved, to improve turbine-generator units
Primary frequency modulation contributing electricity, it is significant to raising power grid secondary quality of service and promotion electricity power enterprise's economic benefit.
Detailed description of the invention
Fig. 1 is to have frequency difference compensation tache primary frequency modulation Controlling model structure chart；
Fig. 2 is frequency difference compensation tache logical flow chart；
Fig. 3 is human-computer interface control flow chart；
Fig. 4 is the RTDS simulation curve being added after frequency difference compensation tache；
Fig. 5 is the structure chart of primary frequency modulation Controlling model in the prior art.
Specific embodiment
As shown in Figures 1 to 4, the method for hydraulic turbine primary frequency modulation contributing electricity is improved, comprising the following steps:
1) be added frequency difference compensation tache on the basis of hydraulic turbine primary frequency modulation Controlling model, and it is theoretical to primary frequency modulation
Power actuating quantity and primary frequency modulation closed loop transfer function,；
2) math equation of speed-regulating system primary frequency modulation process and hydraulic prime mover, generator is analyzed, establishes water
Power generator group primary frequency modulation process simulation model；
3) actual frequency difference compensation factor is determined, it is primary after the addition compensation tache to obtain the complete corresponding hydraulic turbine
Frequency modulation closed loop transfer function,.
Specifically, being taken by taking the approximate model that the hydraulic turbine under fix-head, fixed operating condition can be used under rigid water attack as an example
Hydraulic prime mover inertia time constant is Tw, and transmission function approximate can simplify are as follows:
Generating set inertia time constant Ta, power grid inertia time constant Tb, Generator Damping coefficient ε are taken, then generator
Link transmission function are as follows:
Primary frequency modulation theoretical power (horse-power) actuating quantity
PID control link transmission function
Electrohydraulic actuator closed loop transfer function,
Wherein Ty is electro-hydraulic execution link inertia time constant, and a is electrohydraulic actuator gain amplifier.
Then primary frequency modulation closed loop transfer function, is as follows:
For huge water wheel generator group, since unit hydrodynamic inertial is big, primary frequency modulation actuating quantity is smaller, the time is shorter
In the case where, often just terminate Primary regulation when the power of the assembling unit has not yet been reached and adjusts target, eventually leads to primary frequency modulation integral
Electricity is difficult to meet grid requirements.
For above situation, frequency difference compensation tache is added in the present invention on the basis of traditional primary frequency modulation Controlling model, is had
Frequency difference compensation tache primary frequency modulation Controlling model and traditional primary frequency modulation Controlling model are shown in Fig. 1 and Fig. 5.
After frequency difference compensation tache is added, primary frequency modulation theoretical power (horse-power) actuating quantity
λ is frequency difference compensation factor in formula.
Primary frequency modulation closed loop transfer function, after compensation tache is added is as follows:
It is analyzed by the math equation above to speed-regulating system primary frequency modulation process and hydraulic prime mover, generator,
Hydro-generating Unit primary frequency modulation process has formed mathematical form, has the condition for establishing simulation model union.To complete frequency
Poor compensation factor parameter identification, choosing real time data display RTDS herein is emulation platform, is adjusted and is imitated by simulation calculation
Fruit carries out the primary election of power compensation factor, and wherein s is Laplace operator.
As the analogue system based on a kind of numerical calculation, guarantee that the accuracy of model is to obtain correct simulation calculation
As a result premise.When selecting frequency difference compensation factor for physical device, it is proposed that the rated power S during primary frequency modulationk, unit
Speed governor droop bp, PID control GPID, hydraulic actuating mechanism Gy, hydraulic prime mover Gw, generator GgThe parameter of link is directly quoted
Design value and actual parameter.Emulation primary election result is applied to physical device progress primary frequency modulation to verify, it is relatively more each
Parameter response regulation time of the frequency modulation to different frequencies difference, contributing electricity next time, finally determine actual frequency difference compensation factor.
Wherein, Pk is practical power output, it is contemplated that the transmission delay of the active data of power plant to dispatching terminal, number of contributing when calculating
According to being pushed forward 2 seconds, test can directly take i.e. moment value in this programme；Pks is integral initial output, and integral initial time is frequency mistake
Dead time, integral end time are the time (threshold limit value 1 minute) that frequency returns to dead zone；F is system frequency and standard frequency
The difference of rate, f0 are unit primary frequency modulation operating dead zone frequency threshold；Bp is generating unit speed diversity factor；Sk is the specified appearance of unit
Amount.
Frequency difference compensation factor parameter identification tie-in equation are as follows: λ=[t Q* Δ f bp Sk Gpid Gy Gw Gg], t is
Primary frequency modulation operating power is adjusted to the stable regulation time, and Q* is primary frequency modulation actual contribution electricity and theoretical capacity, and Δ f is one
Secondary frequency modulation frequency difference.
One group of 700MW grades of Francis turbine frequency difference compensation factor recommended value: 1 < λ < 3 are provided herein.
For the turbine-generator units using electrohydaulic speed governor system (DEH), one kind is given below and controls and touches based on PLC
The frequency difference for shielding man-machine interface compensates implementation:
The logic flow as defined in Fig. 2 defines a variable Frequency_Gain in PLC control program, as
Frequency difference compensation factor, and it is as follows to define logic:
If -50 │ of absolute value │ mains frequency > primary frequency modulation dead zone, start the calculating of primary frequency modulation frequency difference, otherwise frequency difference
=0；
After starting frequency difference calculating:
If mains frequency > 50Hz,
Then frequency difference=mains frequency -50+0.01*Frequency_Gain；
If mains frequency < 50Hz,
Then frequency difference=mains frequency -50-0.01*Frequency_Gain.
Define a communication variables T, communication variables T can be communicated with speed-regulating system man-machine interface, attribute be set as it is readable can
It writes, enables Frequency_Gain=T, the value of T is assigned to Frequency_Gain, the function logic for completing frequency difference compensation tache is compiled
Journey.
The logic flow as defined in Fig. 3, defined in speed-regulating system electric part man-machine interface program button and
One variable I, after the user with modification authority logs in, when button is pressed, the value of I is equal to user's write-in value, when button is disconnected
When opening, I=0.By dot address where the value write-in communication variables T of I, realize that user moves back function to frequency difference compensation throwing and frequency difference compensates
Factor modifies function.
To frequency difference compensation factor parameter identification, this programme provides one group of simulation example based on RTDS analogue system.Emulation
Each link parameter selection of model is as follows:
(1) rated power Sk=700MW
(2) speed governor droop bp=0.04
(3) primary frequency modulation operating dead zone f0=0.05Hz
(4) Kp=1.8；Ki=0.5；Kd=0
(5) electro-hydraulic execution link inertia time constant Ty=0.214s, electrohydraulic actuator gain amplifier a=1
(6) prime mover fluid inertia time constant Tw=0.9s
(7) generating set inertia time constant Ta=0, power grid inertia time constant Tb=0, Generator Damping coefficient ε=1
Input system frequency difference f=0.15Hz, then according to theory contribution electricity calculation formula △ P=35MW.Frequency is chosen respectively
Poor compensation factor λ=- 0.5, -0.2,0,0.5,1.5,2 obtain simulation curve such as Fig. 4.
Simulation result shows that frequency difference compensation factor, which is added, can accelerate response regulation time, promote primary frequency modulation contributing electricity.
According to simulation result, compensation factor λ=1.5 closer to theoretical power (horse-power) action value are chosen in this example.It is mended joined frequency difference
It repays and carries out primary frequency modulation test on the water turbine set of link finally to select compensation factor.
It is after frequency difference compensation tache is added in certain power plant below, primary frequency modulation is true under the conditions of choosing frequency difference compensation factor λ=1.5
Machine test examples:
Experiments have shown that frequency difference compensation tache is added, primary frequency modulation contributing electricity can be effectively improved, shorten regulating time.It is logical
It crosses and chooses suitable frequency difference compensation factor, actual contribution electricity can be made closer to theory contribution electricity.It is primary shown in this example
Frequency modulation compensation tache and compensation factor realize that effect is consistent with desired effect.
Claims (8)
1. a kind of method for improving hydraulic turbine primary frequency modulation contributing electricity, which comprises the following steps:
1) on the basis of hydraulic turbine primary frequency modulation Controlling model be added frequency difference compensation tache, and arrive primary frequency modulation theoretical power (horse-power)
Actuating quantity and primary frequency modulation closed loop transfer function,；
2) math equation of speed-regulating system primary frequency modulation process and hydraulic prime mover, generator is analyzed, establishes waterpower hair
Motor group primary frequency modulation process simulation model；
3) actual frequency difference compensation factor is determined, the primary frequency modulation after addition compensation tache to obtain the complete corresponding hydraulic turbine
Closed loop transfer function,.
2. the method according to claim 1 for improving hydraulic turbine primary frequency modulation contributing electricity, which is characterized in that in step 2)
In the primary election of power compensation factor is carried out by simulation calculation regulating effect, in step 3) will emulation primary election result be applied to it is real
Border equipment carries out primary frequency modulation and is verified, and more each parameter is when frequency modulation is to the response regulation of different frequencies difference next time
Between, contributing electricity, finally determine actual frequency difference compensation factor.
3. the method according to claim 1 or 2 for improving hydraulic turbine primary frequency modulation contributing electricity, which is characterized in that in step
It is rapid 1) in, be added frequency difference compensation tache after, primary frequency modulation theoretical power (horse-power) actuating quantity are as follows:
λ is frequency difference compensation factor in formula；
Primary frequency modulation closed loop transfer function, after compensation tache is added is as follows:
4. the method according to claim 3 for improving hydraulic turbine primary frequency modulation contributing electricity, which is characterized in that in step 2)
In, the rated power S when carrying out the primary election of power compensation factor, during primary frequency modulationk, generating unit speed diversity factor bp、PID
Control GPID, hydraulic actuating mechanism Gy, hydraulic prime mover Gw, generator GgThe parameter of link directly quotes design value and practical ginseng
Number.
5. the method according to claim 4 for improving hydraulic turbine primary frequency modulation contributing electricity, which is characterized in that in step 2)
In, the frequency difference compensation factor parameter identification tie-in equation are as follows: λ=[t Q* Δ f bp Sk Gpid Gy Gw Gg], t mono-
Secondary frequency modulation operating power is adjusted to the stable regulation time, and Q* is primary frequency modulation actual contribution electricity and theoretical capacity, and Δ f is primary
Frequency modulation frequency difference.
6. a kind of method for improving hydraulic turbine primary frequency modulation contributing electricity, which is characterized in that for using electrohydaulic speed governor system
Turbine-generator units, when realizing frequency difference compensation, using following steps:
In a control program, a variable Frequency_Gain is defined, as frequency difference compensation factor, and it is as follows to define logic:
If absolute value | mains frequency -50 | > primary frequency modulation dead zone starts the calculating of primary frequency modulation frequency difference, otherwise frequency difference=0；
After starting frequency difference calculating:
If mains frequency > 50Hz,
Then frequency difference=mains frequency -50+0.01*Frequency_Gain；
If mains frequency < 50Hz,
Then frequency difference=mains frequency -50-0.01*Frequency_Gain；
A communication variables T is defined, communication variables T can be communicated with speed-regulating system man-machine interface, and attribute is set as readable writeable, be enabled
The value of T is assigned to Frequency_Gain by Frequency_Gain=T, completes the function logic programming of frequency difference compensation tache.
7. the method according to claim 6 for improving hydraulic turbine primary frequency modulation contributing electricity, which is characterized in that be in speed regulation
A button and a variable I are defined in electric part man-machine interface program of uniting, after the user with modification authority logs in, when pressing
When button is pressed, the value of I is equal to user's write-in value, when button disconnects, I=0, by the value write-in communication variables T point of I
Location realizes that user throws frequency difference compensation and moves back function and frequency difference compensation factor modification function.
8. a kind of method for improving hydraulic turbine primary frequency modulation contributing electricity according to claim 6 or 7, it is characterised in that:
It is operated using PLC controller.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039087A (en) * | 2020-07-29 | 2020-12-04 | 大唐水电科学技术研究院有限公司 | Calculation method of primary frequency modulation theoretical electric quantity |
| CN113013897A (en) * | 2021-03-09 | 2021-06-22 | 国网四川综合能源服务有限公司四川电力工程分公司 | Hydroelectric generating set guide vane mechanical dead zone compensation method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106327057A (en) * | 2016-08-09 | 2017-01-11 | 广东电网有限责任公司电力科学研究院 | Hydroelectricity generator group primary frequency modulation theoretical motion electricity quantity calculating system and method |
| CN107453375A (en) * | 2017-07-06 | 2017-12-08 | 中国长江电力股份有限公司 | Primary frequency modulation electricity compensation Precise control method and device under giant water turbine generator set power mode |
| CN107895955A (en) * | 2017-11-16 | 2018-04-10 | 云南电网有限责任公司电力科学研究院 | A kind of cooperative control method of wind-powered electricity generation compensation hydraulic turbine water hammer effect |
-
2019
- 2019-04-30 CN CN201910365915.5A patent/CN110165716A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106327057A (en) * | 2016-08-09 | 2017-01-11 | 广东电网有限责任公司电力科学研究院 | Hydroelectricity generator group primary frequency modulation theoretical motion electricity quantity calculating system and method |
| CN107453375A (en) * | 2017-07-06 | 2017-12-08 | 中国长江电力股份有限公司 | Primary frequency modulation electricity compensation Precise control method and device under giant water turbine generator set power mode |
| CN107895955A (en) * | 2017-11-16 | 2018-04-10 | 云南电网有限责任公司电力科学研究院 | A kind of cooperative control method of wind-powered electricity generation compensation hydraulic turbine water hammer effect |
Non-Patent Citations (4)
| Title |
|---|
| 杨为城: "棉花滩水电站一次调频关键技术研究", 《水电站机电技术》 * |
| 杨为城: "棉花滩水电站一次调频关键技术研究", 《水电站机电技术》, vol. 35, no. 3, 30 June 2012 (2012-06-30), pages 82 - 85 * |
| 杨为城: "棉花滩水电站一次调频关键技术研究", 水电站机电技术, vol. 35, no. 3, pages 82 - 85 * |
| 蒋琦: "浅析水电厂一次调频功能优化", 红水河, vol. 37, no. 2, pages 71 - 74 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039087A (en) * | 2020-07-29 | 2020-12-04 | 大唐水电科学技术研究院有限公司 | Calculation method of primary frequency modulation theoretical electric quantity |
| CN112039087B (en) * | 2020-07-29 | 2022-08-26 | 大唐水电科学技术研究院有限公司 | Calculation method of primary frequency modulation theoretical electric quantity |
| CN113013897A (en) * | 2021-03-09 | 2021-06-22 | 国网四川综合能源服务有限公司四川电力工程分公司 | Hydroelectric generating set guide vane mechanical dead zone compensation method and device |
| CN113013897B (en) * | 2021-03-09 | 2023-01-06 | 国网四川综合能源服务有限公司四川电力工程分公司 | Mechanical dead zone compensation method and device for guide vane of hydroelectric generating set |
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