CN104052072A - Thermal power generating unit primary frequency modulation optimal control method and system based on amplitude keeping - Google Patents
Thermal power generating unit primary frequency modulation optimal control method and system based on amplitude keeping Download PDFInfo
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Abstract
The invention discloses a thermal power generating unit primary frequency modulation optimal control method and system based on amplitude keeping. The method comprises the steps that when the absolute value of a unit rotating speed deviation signal delta n is within a preset range, a system scheduling assessment operating value is not reached, and system output is the load compensation quantity delta P1 generated after the unit rotating speed deviation signal delta n is subjected to compensation according to a primary frequency modulation compensation quantity function f(x); when the absolute value of the unit rotating speed deviation signal delta n is beyond the preset range, the system scheduling assessment operating value is reached, final output quantity of the system is determined according to the positive/negative value of the unit rotating speed deviation signal delta n, and the duration of the final output quantity of the system is determined according to preset retardation time. The thermal power generating unit primary frequency modulation optimal control method and system based on amplitude keeping have the advantages that the practical problems of a poor assessment index of primary frequency modulation of a thermal power generating unit and the like can be solved, the requirement of a power grid for primary frequency modulation of the unit can be effectively met, and the demands for frequency modulation and peak regulation are met.
Description
Technical field
The present invention relates to fired power generating unit frequency modulation field, relate in particular to a kind of fired power generating unit primary frequency modulation optimal control method and system keeping based on amplitude.
Background technology
Along with the continuous increase of new-energy grid-connected, load growth and electrical network scale, under the new situation interconnected at extra-high voltage grid and large regional grid, grid contacts at different levels are day by day tight, between electrical network and unit, the requirement of cooperation is also more and more higher, and the primary frequency modulation in net factory coordination function becomes one of effective means of stablizing in electrical network.Generating set primary frequency regulation function is the intrinsic function of turbo generator set, it is mainly the admission adjustment doors by regulating DEH system, utilize boiler heat storage, occur abnormal in the situation that at electrical network, the requirement of responsive electricity grid fast, electric power grid frequency stabilization, to make up network load gap, maintains the safety of electrical network.
The response that Primary regulation changes system frequency is fast, and according to the statistics of IEEE, the comprehensive Primary regulation characteristic time constant of electric power system is generally about 10 seconds; Because the Primary regulation of generator only acts on the valve location of prime mover, and do not act on the combustion system of thermal power generation unit, in the time that valve opening increases, the power that accumulation of heat in boiler has temporarily changed prime mover, because the chemical energy in combustion system does not change, along with the minimizing of amount of stored heat, the power of prime mover can be got back to again original level.Thereby be of short duration the action time of thermal power generation unit Primary regulation.
Dissimilar thermal power generation unit, due to the difference of amount of stored heat, the action time of Primary regulation be 0.5 to 2 minute not etc.The method of adjustment that the Primary regulation of generator adopts is to have poor characteristic method, its advantage be all units adjustment only with a parameter relevant (relevant with system frequency), between unit, interact little.At present, grid dispatching management derives from operation plan and EMS (EMS) to the primary frequency modulation performance examining computation parameter of unit.Frequency that unit is corresponding, the measuring point information definition such as meritorious are in WAMS (wide area monitoring system) remote measurement definition list, according to defining telemetry intelligence (TELINT) telemetry such as instruction before and after PMU (synchronous vector measurement device) obtains frequency that primary frequency modulation disturbance calculates, meritorious, rotating speed, primary frequency modulation in real time storehouse in WAMS.
Due to the characteristic such as rapidity, transience of primary frequency modulation existence, it is adjusted curve and mainly embodies with spike form in Power Plant side, simultaneously, due to WAMS data sampling precision higher (40ms), the parameter curve such as actual frequency, power contains more burr, scheduling side has been carried out filtering processing, therefore actual primary frequency modulation reaction is through the impact of the factor such as conversion calculating and Internet Transmission of each system, will inevitably there is certain decay, cause the reaction amplitude in reality examination not reach appraisal standards requirement.
Summary of the invention
Object of the present invention is exactly in order to address the above problem, a kind of fired power generating unit primary frequency modulation optimal control method and system keeping based on amplitude proposed, the method can effectively be improved the performance of unit frequency modulation, improve rapidity and the accuracy of fired power generating unit to the response of scheduling primary frequency modulation, and then guarantee to reduce the frequency fluctuation of network system by its fm capacity.
To achieve these goals, the present invention adopts following technical scheme:
The fired power generating unit primary frequency modulation optimal control method keeping based on amplitude, comprising:
In the time that the absolute value of generating unit speed deviation signal Δ n is within setting range, do not reach system call examination operating value, system is output as generating unit speed deviation signal Δ n after primary frequency modulation compensation rate function f (x) compensation, the load compensation amount Δ P1 of generation.
In the time that the absolute value of generating unit speed deviation signal Δ n is outside setting range, reach system call examination operating value, according to the final output variable of positive and negative definite system of generating unit speed deviation signal Δ n, and according to the duration of determining the final output variable of system lag time of setting.
Described setting range is determined by the rotating speed departure of dispatching examination.
In the time that the absolute value of generating unit speed deviation signal Δ n is outside setting range:
(1) if Δ n>0, system be output as system actual output variable Δ P2 and generating unit speed deviation signal Δ n after primary frequency modulation compensation rate function f (x) compensation power back-off amount Δ P1 between high value.
(2) if Δ n<0, system be output as system actual output variable Δ P2 and generating unit speed deviation signal Δ n after primary frequency modulation compensation rate function f (x) compensation power back-off amount Δ P1 between low value.
A system for the fired power generating unit primary frequency modulation optimal control method keeping based on amplitude, comprising:
Generating unit speed deviation signal Δ n is after primary frequency modulation compensation rate function f (x), produce load compensation amount Δ P1, load compensation amount Δ P1 accesses respectively the input two of selector TWOSEL1 and selector TWOSEL2, load compensation amount Δ P1 also accesses the input two of analog quantity switch AXSEL2, the output of analog quantity switch AXSEL2 accesses respectively the input one of selector TWOSEL1 and selector TWOSEL2, the output of selector TWOSEL1 and selector TWOSEL2 accesses respectively input one and the input two of analog quantity switch AXSEL1, the input one of the output access analog quantity switch AXSEL2 of analog quantity switch AXSEL1.
After the input one of generating unit speed deviation signal Δ n access comparator C MP, the input three of its output access analog quantity switch AXSEL1.
Generating unit speed deviation signal Δ n accesses the input three of analog quantity switch AXSEL2 successively after high lower bound alarm module HLALM and hysteresis reset timer Timer.
Analog generator A1 accesses the ceiling value input of high lower bound alarm module HLALM, and analog generator A1 is multiplied by the low limit value input of the high lower bound alarm module of-1 rear access HLALM.
For being set, the analog generator A2 of lag time accesses the DT input of hysteresis reset timer Timer.
Input two connecting to neutral of comparator C MP.
Described selector TWOSEL1 and selector TWOSEL2 are set to respectively select high value and select low value.
The invention has the beneficial effects as follows:
(1) quality of the primary frequency modulation performance of grid-connected unit directly affects the stable of mains frequency; can effectively reduce by the present invention the harmful effect that the factor such as conversion calculating and Internet Transmission of each system in actual primary frequency modulation course of reaction causes; improve unit changes response rapidity and accuracy to mains frequency, guarantee that the fm capacity of unit reaches the requirement of scheduling appraisal standards.
(2) size by primary frequency modulation power change values, positive negative judgement, can effectively ensure that unit reaches rapidly desired maximum in the time of primary frequency modulation, guarantees not malfunction, tripping, and the effective validity of safety action.
(3) realize the differential responses of electrical network size width frequency fluctuation by the judgement of rotating speed deviation amplitude size, both ensured not frequent movement of unit, action amplitude while guaranteeing again to move reaches requirement, the safe operation that keeps unit on the one hand, the stability of mains frequency be can further improve on the one hand, and then safe, the effectively operation of users' electric equipment and power equipment guaranteed.
(4) the present invention can solve the practical challenges such as fired power generating unit primary frequency modulation performance assessment criteria is poor, can effectively meet the requirement of electrical network for unit primary frequency modulation, meets frequency modulation peak regulation demand.
Brief description of the drawings
Fig. 1 is primary frequency modulation Optimal Control System schematic diagram of the present invention;
Fig. 2 is the present invention's restoration type timer work schematic diagram that lags behind.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:
As shown in Figure 1, a kind of fired power generating unit primary frequency modulation Optimal Control System keeping based on amplitude, comprising:
Generating unit speed deviation signal Δ n is after primary frequency modulation compensation rate function f (x), produce load compensation amount Δ P1, Δ P1 accesses respectively the X2 input of TWOSEL1 and TWOSEL2, the output variable Δ P2 of analog quantity switch AXSEL2 accesses respectively the X1 input of TWOSEL1 and TWOSEL2, and the output of TWOSEL1 and TWOSEL2 accesses respectively Z1 input and the Z2 input of analog quantity switch AXSEL1.
The X1 input of generating unit speed deviation signal Δ n access CMP, the X2 input connecting to neutral of CMP, the S input of the output access analog quantity switch AXSEL1 of CMP.
Generating unit speed deviation signal Δ n accesses respectively the X input of high lower bound alarm module HLALM and the X1 input of CMP, the value of analog generator A1 and analog generator A1 is got the high-low limits input that accesses respectively high lower bound alarm module HLALM after negative value, the S input of the output access hysteresis reset timer Timer of high lower bound alarm module HLALM, the DT input of analog generator A2 access hysteresis reset timer Timer.
The S input of the output access analog quantity switch AXSEL2 of hysteresis reset timer Timer, the Z1 input of the output access analog quantity switch AXSEL2 of analog quantity switch AXSEL1, generating unit speed deviation signal Δ n, after primary frequency modulation compensation rate function f (x), produces the Z2 input of load compensation amount Δ P1 access analog quantity switch AXSEL2.
In the time that mains frequency is unstable, the rotating speed of generator can produce a deviation, supposes that now deviation is Δ n (| Δ n|>2), after signal function f (x) compensation, produces a load compensation amount Δ P.
(1) according to the Δ n high lower bound alarm module HLALM generating digital amount instruction of process " 0 " or " 1 ", wherein the high-low limits of high lower bound alarm module is determined by the rotating speed departure of dispatching examination, the primary frequency modulation action examination value requiring as certain regional power grid turns for ± 2.4, constant 2.4 is set in analog generator A1, now the ceiling value H of HLALM is 2.4, and low limit value L is-2.4.
(2) in the time that the absolute value of Δ n is less than 2.4, HLALM is output as " 0 ", and while not reaching scheduling examination operating value, Timer is output as " 0 ", departure is not kept; When HLALM is output as " 1 ", while reaching scheduling examination operating value, Timer is output as " 1 ", and the numerical value arranging in A2 in this example is 2s.
(3) according to the positive and negative output that decides analog quantity switch AXSEL1 of generating unit speed deviation signal Δ n, in the time of Δ n>0, the output of AXSEL1 determines by Z1 pin input, is power back-off amount Δ P1 corresponding to the output Δ P2 of AXSEL2 and specified output speed deviate high value between the two; In the time of Δ n<0, the output of AXSEL1 is determined by the input of Z2 pin, is Δ P2 and Δ P1 low value between the two.
(4) determine the output of analog quantity switch AXSEL2 according to the output of Timer and AXSEL1, in the time that the S of AXSEL2 end is input as " 1 " and reaches scheduling examination operating value, AXSEL2 is output as the output that Z1 is AXSEL1; In the time that the S of AXSEL2 end is input as " 0 ", it is power back-off amount Δ P1 corresponding to specified output speed deviate that AXSEL2 is output as Z2.
Hysteresis restoration type timer operation principle is as shown in Figure 2: in the time that Set asserts signal changes to 1 from 0, output D follows 1, before output D is not reset, in the end after the trailing edge time delay DT of a Set signal, output D is just reset, and that is to say time span that under this kind of operating mode, the actual output time length of D the is Set signal sum after DT that superposes; The rising edge one of Rst reset signal arrives, and output D resets immediately.
Concrete example 1: in the time of Δ n=3>2.4, primary frequency modulation compensation rate function f (x) is output as Δ P1=2, HLALM is output as " 1 " and lasting 0.5s, because of DT=2 lag time in Timer, set end S in Timer is switching value " 1 ", the output that is Timer keeps " 1 " continuity 2+0.5=2.5s, and the output of AXSEL2 maintenance Z1 pin input value and duration are 2.5s; Now Δ n=3>0 of cause, so time AXSEL1 be output as the input value of its Z1 pin, be the large value of Δ P1 and Δ P2, be 0 substantially because primary frequency modulation changes forward speed deviation, corresponding power back-off amount is also 0, and therefore now AXSEL1 is output as Δ P1=2; That is to say, in the adjustment process of this primary frequency modulation, the output Δ P2 of AXSEL2 keeps amplitude 2, and lasting 2.5s has effectively guaranteed the validity of this value, has avoided the amplitude that causes because of system scan cycle, filtering etc. not up to standard; After 2.5s, when Δ n<2.4, HLALM is output as in 0, Timer and is output as " 0 ", and therefore, AXSEL2 is output as the actual power compensation rate of Z2 input.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendments that creative work can make or distortion still in protection scope of the present invention.
Claims (8)
1. the fired power generating unit primary frequency modulation optimal control method keeping based on amplitude, is characterized in that, comprising:
In the time that the absolute value of generating unit speed deviation signal Δ n is within setting range, do not reach system call examination operating value, system is output as generating unit speed deviation signal Δ n after primary frequency modulation compensation rate function f (x) compensation, the load compensation amount Δ P1 of generation;
In the time that the absolute value of generating unit speed deviation signal Δ n is outside setting range, reach system call examination operating value, according to the final output variable of positive and negative definite system of generating unit speed deviation signal Δ n, and according to the duration of determining the final output variable of system lag time of setting.
2. the fired power generating unit primary frequency modulation optimal control method keeping based on amplitude as claimed in claim 1, is characterized in that, described setting range is determined by the rotating speed departure of dispatching examination.
3. the fired power generating unit primary frequency modulation optimal control method keeping based on amplitude as claimed in claim 1, is characterized in that, in the time that the absolute value of generating unit speed deviation signal Δ n is outside setting range:
(1) if Δ n>0, system be output as system actual output variable Δ P2 and generating unit speed deviation signal Δ n after primary frequency modulation compensation rate function f (x) compensation power back-off amount Δ P1 between high value;
(2) if Δ n<0, system be output as system actual output variable Δ P2 and generating unit speed deviation signal Δ n after primary frequency modulation compensation rate function f (x) compensation power back-off amount Δ P1 between low value.
4. a system that realizes the fired power generating unit primary frequency modulation optimal control method keeping based on amplitude as claimed in claim 1, is characterized in that, comprising:
Generating unit speed deviation signal Δ n is after primary frequency modulation compensation rate function f (x), produce load compensation amount Δ P1, load compensation amount Δ P1 accesses respectively the input two of selector TWOSEL1 and selector TWOSEL2, load compensation amount Δ P1 also accesses the input two of analog quantity switch AXSEL2, the output of analog quantity switch AXSEL2 accesses respectively the input one of selector TWOSEL1 and selector TWOSEL2, the output of selector TWOSEL1 and selector TWOSEL2 accesses respectively input one and the input two of analog quantity switch AXSEL1, the input one of the output access analog quantity switch AXSEL2 of analog quantity switch AXSEL1,
After the input one of generating unit speed deviation signal Δ n access comparator C MP, the input three of its output access analog quantity switch AXSEL1;
Generating unit speed deviation signal Δ n accesses the input three of analog quantity switch AXSEL2 successively after high lower bound alarm module HLALM and hysteresis reset timer Timer.
5. a kind of system that realizes the fired power generating unit primary frequency modulation optimal control method keeping based on amplitude as claimed in claim 4, it is characterized in that, analog generator A1 accesses the ceiling value input of high lower bound alarm module HLALM, and analog generator A1 is multiplied by the low limit value input of the high lower bound alarm module of-1 rear access HLALM.
6. a kind of system that realizes the fired power generating unit primary frequency modulation optimal control method keeping based on amplitude as claimed in claim 4, is characterized in that, accesses the DT input of hysteresis reset timer Timer for the analog generator A2 of lag time is set.
7. a kind of system that realizes the fired power generating unit primary frequency modulation optimal control method keeping based on amplitude as claimed in claim 4, is characterized in that input two connecting to neutral of comparator C MP.
8. a kind of system that realizes the fired power generating unit primary frequency modulation optimal control method keeping based on amplitude as claimed in claim 4, is characterized in that, described selector TWOSEL1 and selector TWOSEL2 are set to respectively select high value and select low value.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269871A (en) * | 2014-10-27 | 2015-01-07 | 国家电网公司 | Method for increasing primary frequency modulation correct action qualified rate of thermal power generation machine set |
| CN104617588A (en) * | 2015-02-04 | 2015-05-13 | 广东电网有限责任公司电力科学研究院 | Reactor power control method and system of nuclear power unit during primary frequency modulation |
| CN104865830A (en) * | 2015-04-29 | 2015-08-26 | 华北电力大学（保定） | Dual-intelligent-optimization control method for unit load |
| CN105045229A (en) * | 2015-06-26 | 2015-11-11 | 国网山东省电力公司电力科学研究院 | Thermal power generating unit primary frequency modulation optimization control method based on time compensation and device |
| CN105717793A (en) * | 2016-02-03 | 2016-06-29 | 国网山东省电力公司电力科学研究院 | Optimizing control method and system capable of ensuring motion direction of primary frequency modulation |
| CN106026099A (en) * | 2016-05-20 | 2016-10-12 | 国网山东省电力公司电力科学研究院 | Data analysis-based real-time monitoring system and method for primary frequency modulation capability of power grid |
| CN106169767A (en) * | 2016-06-23 | 2016-11-30 | 国网新疆电力公司电力科学研究院 | Fired power generating unit primary frequency modulation and the control method for coordinating of AGC |
| CN106451499A (en) * | 2016-12-12 | 2017-02-22 | 哈尔滨工业大学 | Dynamic primary thermal power generating unit frequency modulation control method for power grid with high wind power penetration rate |
| CN110174838A (en) * | 2019-04-30 | 2019-08-27 | 大唐陕西发电有限公司 | A kind of fired power generating unit improves the optimization method of primary frequency modulation qualification rate |
| CN110460114A (en) * | 2019-08-09 | 2019-11-15 | 上海明华电力科技有限公司 | Fired power generating unit primary frequency modulation control method based on the compensation of frequency modulation load instruction |
| CN111005774A (en) * | 2019-12-26 | 2020-04-14 | 润电能源科学技术有限公司 | Control method and device for primary frequency modulation of thermal power generating unit |
| CN113541208A (en) * | 2021-06-10 | 2021-10-22 | 华电电力科学研究院有限公司 | Coal-fired unit primary frequency modulation adjustment performance diagnosis and self-adaptive adjustment system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11215710A (en) * | 1998-01-23 | 1999-08-06 | Chubu Electric Power Co Inc | Power system frequency stabilizer |
| CN101105520A (en) * | 2007-08-08 | 2008-01-16 | 陕西电力科学研究院 | Generating set primary frequency regulation test method and emulating instrument for test |
| CN102611124A (en) * | 2012-03-10 | 2012-07-25 | 山东电力研究院 | Primary frequency regulation control method applicable to thermal generator set of intelligent power grid |
| CN103545840A (en) * | 2013-10-23 | 2014-01-29 | 国家电网公司 | Method capable of guaranteeing primary frequency modulation action effectiveness of 300MW generator set |
-
2014
- 2014-05-27 CN CN201410227689.1A patent/CN104052072B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11215710A (en) * | 1998-01-23 | 1999-08-06 | Chubu Electric Power Co Inc | Power system frequency stabilizer |
| CN101105520A (en) * | 2007-08-08 | 2008-01-16 | 陕西电力科学研究院 | Generating set primary frequency regulation test method and emulating instrument for test |
| CN102611124A (en) * | 2012-03-10 | 2012-07-25 | 山东电力研究院 | Primary frequency regulation control method applicable to thermal generator set of intelligent power grid |
| CN103545840A (en) * | 2013-10-23 | 2014-01-29 | 国家电网公司 | Method capable of guaranteeing primary frequency modulation action effectiveness of 300MW generator set |
Non-Patent Citations (3)
| Title |
|---|
| 庞向坤等: "火力发电机组一次调频问题分析及解决方案", 《山东电力技术》, no. 6, 31 December 2012 (2012-12-31) * |
| 李卓霖: "大型火电机组一次调频控制策略的优化", 《发电设备》, vol. 25, no. 2, 31 March 2011 (2011-03-31) * |
| 赵志军等: "火电机组一次调频功能及试验方法", 《河北电力技术》, vol. 27, no. 1, 28 February 2008 (2008-02-28) * |
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| CN104269871A (en) * | 2014-10-27 | 2015-01-07 | 国家电网公司 | Method for increasing primary frequency modulation correct action qualified rate of thermal power generation machine set |
| CN104617588B (en) * | 2015-02-04 | 2017-05-24 | 广东电网有限责任公司电力科学研究院 | Reactor power control method and system of nuclear power unit during primary frequency modulation |
| CN104617588A (en) * | 2015-02-04 | 2015-05-13 | 广东电网有限责任公司电力科学研究院 | Reactor power control method and system of nuclear power unit during primary frequency modulation |
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| CN105045229A (en) * | 2015-06-26 | 2015-11-11 | 国网山东省电力公司电力科学研究院 | Thermal power generating unit primary frequency modulation optimization control method based on time compensation and device |
| CN105045229B (en) * | 2015-06-26 | 2017-11-24 | 国网山东省电力公司电力科学研究院 | Fired power generating unit primary frequency modulation optimal control method and device based on time bias |
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| CN105717793B (en) * | 2016-02-03 | 2018-04-06 | 国网山东省电力公司电力科学研究院 | A kind of optimal control method and system for ensuring primary frequency modulation direction of action |
| CN106026099A (en) * | 2016-05-20 | 2016-10-12 | 国网山东省电力公司电力科学研究院 | Data analysis-based real-time monitoring system and method for primary frequency modulation capability of power grid |
| CN106026099B (en) * | 2016-05-20 | 2018-06-08 | 国网山东省电力公司电力科学研究院 | Primary frequency regulation of power network ability real-time monitoring system and method based on data analysis |
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| CN106451499A (en) * | 2016-12-12 | 2017-02-22 | 哈尔滨工业大学 | Dynamic primary thermal power generating unit frequency modulation control method for power grid with high wind power penetration rate |
| CN110174838A (en) * | 2019-04-30 | 2019-08-27 | 大唐陕西发电有限公司 | A kind of fired power generating unit improves the optimization method of primary frequency modulation qualification rate |
| CN110460114A (en) * | 2019-08-09 | 2019-11-15 | 上海明华电力科技有限公司 | Fired power generating unit primary frequency modulation control method based on the compensation of frequency modulation load instruction |
| CN110460114B (en) * | 2019-08-09 | 2021-12-31 | 上海明华电力科技有限公司 | Primary frequency modulation control method of thermal power generating unit based on frequency modulation load instruction compensation |
| CN111005774A (en) * | 2019-12-26 | 2020-04-14 | 润电能源科学技术有限公司 | Control method and device for primary frequency modulation of thermal power generating unit |
| CN111005774B (en) * | 2019-12-26 | 2022-03-01 | 润电能源科学技术有限公司 | Control method and device for primary frequency modulation of thermal power generating unit |
| CN113541208A (en) * | 2021-06-10 | 2021-10-22 | 华电电力科学研究院有限公司 | Coal-fired unit primary frequency modulation adjustment performance diagnosis and self-adaptive adjustment system |
| CN113541208B (en) * | 2021-06-10 | 2023-08-18 | 华电电力科学研究院有限公司 | Primary frequency modulation regulation performance diagnosis and self-adaptive regulation system for coal-fired unit |
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