CN108879731A - A kind of primary frequency modulation performance index Evaluation Method - Google Patents
A kind of primary frequency modulation performance index Evaluation Method Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- 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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Abstract
The invention discloses a kind of primary frequency modulation performance index Evaluation Methods, it includes：S1：Generating set sample data is normalized；S2：According to treated, data establish frequency response models；S3：According to the model evaluation primary frequency modulation effect in step S2.The invention proposes suitable for the primary frequency modulation performance evaluation index under the conditions of large frequency-difference.This method can accurately evaluate the actual performance of unit primary frequency modulation percentage contribution stable to mains frequency under the conditions of large frequency-difference and small frequency difference and unit primary frequency modulation.
Description
Technical field
The present invention relates to generating set primary frequency regulation performance technologies field, especially a kind of primary frequency modulation performance metrics evaluation
Method.
Background technique
In general, calculate the performance indicator of response according to unit frequency in perturbation process and active variation, commented with this
The primary frequency modulation performance of valence generating set mainly includes：Primary frequency modulation dead zone, primary frequency modulation response speed, difference coefficient, frequency modulation
The several key indexes of amplitude.
Common generating set primary frequency regulation method of evaluating performance is divided into several：
(1) evaluation method based on primary frequency modulation performance index
The principle of this method is：Calculate unit actual act electricity in different time periods and reason in primary frequency modulation response process
By the percentage of electricity, it is respectively intended to the continuous capability of reflection unit primary frequency modulation response time length and primary frequency modulation.Definition
Primary frequency modulation response speed index, adjustment amplitude index, adjustment Deviation Indices and response index index, pass through this 4 indexs
Various combination, to adapt to the evaluation work of grid-connected unit primary frequency modulation characteristic under different running method, but this method
Different moments must be calculated simultaneously, and indices specific value under different running method, calculating is cumbersome, and workload is huge to expire
The demand of sufficient on-line evaluation.
(2) evaluation method based on primary frequency modulation dynamic response characteristic index
The principle of this method is：The concept for borrowing the speed regulation diversity factor based on static regulation characteristics, proposes dynamic speed adjustment
Diversity factor and its response delay characterize unit dynamic response process as the index for measuring unit primary frequency modulation capability of fast response
In to network load disturbance contribution.But primary frequency modulation contributing electricity mainly reflects that unit is participating in primary frequency regulation of power network process
The contribution of middle accumulation can not reflect capability of fast response of the unit primary frequency modulation after power grid happens suddenly disturbance or accident.
The calculation method of currently used device electricity only considered one parameter of difference coefficient as theoretical device electricity
Calculation basis, but identical frequency difference input under, the unit small for responsive time constant, which is not only contributed, to be changed as rapidly,
When frequency is crossed extreme value and is returned, power output changing inversely also faster, the performance that might not be obtained according to the algorithm of device electricity
It is more excellent.
Summary of the invention
In view of the above drawbacks of the prior art, it is an object of the invention to provide a kind of primary frequency modulation performance metrics evaluations
Method, the primary frequency modulation performance evaluation index under the conditions of proposing suitable for large frequency-difference.This method can accurately evaluate unit
The reality of primary frequency modulation percentage contribution stable to mains frequency under the conditions of large frequency-difference and small frequency difference and unit primary frequency modulation
Performance.
It is realized the purpose of the present invention is technical solution in this way, a kind of primary frequency modulation performance index Evaluation Method,
It includes：
S1：Generating set sample data is normalized；
S2：According to treated, data establish frequency response models；
S3：According to the model evaluation primary frequency modulation effect in step S2.
Further, specific handle of the step S1 includes：Linear transformation is carried out to generating set raw sample data,
Transfer function is as follows：
In formula, x is sample data, and max is the maximum value of sample data, and min is the minimum value of sample data.
Further, the frequency response models establishment process of the step S2 is as follows：
For the load of linear change, it is expressed asSo Δ ω can be expressed as：
Time-domain expression is：
In formula：
C=(K+L)2；
D=-LT2K-3MTK-LTM+M2；
M is the comprehensive inertia of system, and T is speed-regulating system generalized time constant, and K is generator function-frequency static characteristic coefficient, KL
For load comprehensive adjustment effect coefficient, Δ ω is generator speed deviation.
Further, the method that primary frequency modulation effect is evaluated in the step S3 is as follows：
Primary frequency modulation effect refers to, when mains frequency exceeds unit frequency 50 ± Δ of controlling dead error fsqAnd the duration is more than
At 20 seconds, primary frequency modulation unit exceeds unit frequency 50 ± Δ of controlling dead error f in mains frequencysqActual power power output in period
And originate the device electricity ± Δ Q of the difference of generated outputsYAccount for theoretical calculation device electricity ± Δ Q in the corresponding timejYRatio,
I.e.：
As DX < 0, DX=0 is assert；
In formula, DX is the effect of primary frequency modulation；ΔQjYFor corresponding time primary frequency modulation theoretical calculation device electricity；ΔQsY
For the device electricity of the practical incremental portion of primary frequency modulation；
Wherein,
In formula,
t0It is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, frequency is equal to 50+ Δ fsq
Or it is less than 50- Δ fsqAt the time of；
tIt adjustsExceed 50 ± Δ f for mains frequencysqAnd the duration is more than in the case of 20 seconds, mains frequency exceeds 50 ± Δ
fsqTime, unit are the second；
PSTIt is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, unit is in t030 before moment
It actually contributes average value in second；
PStIt is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, unit is in t0After moment
tIt adjustsThe practical power output of unit in time；
Dt is the integration interval time.
Further, primary frequency modulation unit exceeds unit frequency 50 ± Δ of controlling dead error f in mains frequencysqPeriod is up to
60 seconds, integration interval time dt was 1-5 seconds.
By adopting the above-described technical solution, the present invention has the advantage that：Unit primary frequency modulation proposed by the present invention
Method of evaluating performance can accurately reflect the Primary frequency control ability of different type unit, evaluate with traditional primary frequency modulation performance
Method is compared, and the present invention occurs accordingly to give commenting under different operating conditions under small frequency difference, large frequency-difference different condition according to system
Valence index.When system is under the interference of small frequency difference, consideration is using frequency offset and frequency change rate as the comprehensive system of additional weight
Number index；When large frequency-difference interference occurs for system, consider using the response time of unit maximal regulated amplitude and governor as attached
The comprehensive evaluation index of weighted.Judge to carry out evaluation meter using that index by the actuation time of monitoring pitch instruction
It calculates, the requirement for both having met evaluation method real-time also ensures the certainty of primary frequency modulation performance evaluation.The present invention also proposes
Suitable for the primary frequency modulation performance evaluation index under the conditions of large frequency-difference.This method can accurately evaluate unit primary frequency modulation and exist
The actual performance of the percentage contribution stable to mains frequency and unit primary frequency modulation under the conditions of large frequency-difference and small frequency difference.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.
Detailed description of the invention
Detailed description of the invention of the invention is as follows：
Fig. 1 is the flow diagram of primary frequency modulation performance index Evaluation Method.
Fig. 2 is frequency response Equivalent Model schematic diagram.
Frequency variation curve schematic diagram when Fig. 3 is different inertia.
Frequency variation curve schematic diagram when Fig. 4 is governor difference slip amplification factor.
Fig. 5 is governor different delayed time frequency variation curve schematic diagram.
Fig. 6 is the input signal schematic diagram of governor under small frequency difference.
Fig. 7 is the output signal schematic diagram of governor under small frequency difference.
Fig. 8 is alternator speed deviation schematic diagram in the unit output curve under small frequency difference.
Fig. 9 is generator mechanical power schematic diagram in the unit output curve under small frequency difference.
Figure 10 is the input curve schematic diagram of governor under large frequency-difference.
Figure 11 is the curve of output schematic diagram of governor under large frequency-difference.
Figure 12 is the unit output curve synoptic diagram of certain embodiment under big difference on the frequency.
Figure 13 is the unit output curve synoptic diagram of another embodiment under big difference on the frequency.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1, as shown in figure 1 to figure 13；A kind of primary frequency modulation performance index Evaluation Method, it includes：
S1：Generating set sample data is normalized；
S2：According to treated, data establish frequency response models；
S3：According to the model evaluation primary frequency modulation effect in step S2.
The step S1 it is specific processing include：Linear transformation is carried out to generating set raw sample data, converts letter
Number is as follows：
In formula, x is sample data, and max is the maximum value of sample data, and min is the minimum value of sample data.
The frequency response models establishment process of the step S2 is as follows：
For the load of linear change, it is expressed asSo Δ ω can be expressed as：
Time-domain expression is：
In formula：
C=(K+L)2；
D=-LT2K-3MTK-LTM+M2；
M is the comprehensive inertia of system, and T is speed-regulating system generalized time constant, and K is generator function-frequency static characteristic coefficient, KL
For load comprehensive adjustment effect coefficient, Δ ω is generator speed deviation.
The method that primary frequency modulation effect is evaluated in the step S3 is as follows：
Primary frequency modulation effect refers to, when mains frequency exceeds unit frequency 50 ± Δ of controlling dead error fsqAnd the duration is more than
At 20 seconds, primary frequency modulation unit exceeds unit frequency 50 ± Δ of controlling dead error f in mains frequencysqActual power power output in period
And originate the device electricity ± Δ Q of the difference of generated outputsYAccount for theoretical calculation device electricity ± Δ Q in the corresponding timejYRatio,
I.e.：
As DX < 0, DX=0 is assert；
In formula, DX is the effect of primary frequency modulation；ΔQjYFor corresponding time primary frequency modulation theoretical calculation device electricity；ΔQsY
For the device electricity of the practical incremental portion of primary frequency modulation；
Wherein,
In formula,
t0It is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, frequency is equal to 50+ Δ fsq
Or it is less than 50- Δ fsqAt the time of；
tIt adjustsExceed 50 ± Δ f for mains frequencysqAnd the duration is more than in the case of 20 seconds, mains frequency exceeds 50 ± Δ
fsqTime, unit are the second；
PSTIt is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, unit is in t030 before moment
It actually contributes average value in second；
PStIt is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, unit is in t0After moment
tIt adjustsThe practical power output of unit in time；
Dt is the integration interval time.
Primary frequency modulation unit exceeds unit frequency 50 ± Δ of controlling dead error f in mains frequencysqPeriod is up to 60 seconds, described
Integration interval time dt is 1-5 seconds.
The working principle of the invention：By normalized, line is carried out to input quantity frequency offset and frequency change rate
Property variation, be mapped to end value between [0-1].In order to more effectively motivate, supervise power plant to improve unit Primary frequency control ability,
Especially frequency fast-changing initial stage and at the time of frequency variation maximum, according to the percentage contribution to frequency stabilization by unit one
Secondary frequency modulation device electricity pulls open gap, and the device electricity for adding different weights according to unit primary frequency modulation percentage contribution of proposition is calculated
Method.This method is to calculate practical power output as device electricity multiplied by the result of coefficient when the coefficient of colligation of frequency response is greater than 1
The unit output of method, and the standard with the ratio of practical theoretical power output as examination.Above method and index are suitable for small frequency
The response time of maximal regulated amplitude and governor is added for large frequency-difference condition in primary frequency modulation performance evaluation under the conditions of difference
Two evaluation indexes, i.e. governor maximum power-adjustable and unit output reach corresponding to the 63.21% of maximum regulatory power
Delay, and evaluate with adjustment speed that the ratio of the two is characterized the primary frequency modulation performance of unit.Speed shows more greatly the machine
The regulation performance of group is more excellent.
The large frequency-difference and small frequency difference that the present invention is mentioned are instructed by monitoring pitch, and what pitch instruction started to reduce in 15s recognizes
To be small frequency difference, according to the speed adjusting performance of the wire examination method examination unit of small frequency difference；Pitch instruction also keeps maximum opening after 15s
It is large frequency-difference, examines set speed adjustment performance according to the method for large frequency-difference.
Unit primary frequency modulation performance evaluation method proposed by the present invention can accurately reflect the primary of different type unit
Fm capacity.Compared with traditional primary frequency modulation performance evaluation method, according to system small frequency difference, large frequency-difference difference occur for the present invention
Under the conditions of, accordingly give the evaluation index under different operating conditions.When system is under the interference of small frequency difference, consider frequency offset
Coefficient of colligation index with frequency change rate as additional weight；When large frequency-difference interference occurs for system, consider unit maximum
Comprehensive evaluation index of the response time of the amplitude of accommodation and governor as additional weight.When the movement instructed by monitoring pitch
Between judge to carry out evaluation calculating using that index, the requirement for both having met evaluation method real-time also ensures primary frequency modulation
The certainty of performance evaluation.
Embodiment 2, the present embodiment are preferred embodiment, as shown in figure 1 to figure 13；A kind of primary frequency modulation performance index is commented
Valence method, it includes：
1. data are normalized.
Data normalization (normalization) processing is an element task of data mining, and different evaluation index often has not
With dimension and dimensional unit, such situation influence whether data analysis as a result, in order to eliminate the dimension shadow between index
It rings, needs to carry out data normalization processing, to solve the comparativity between data target.Initial data is by data normalization
After reason, each index is in the same order of magnitude, is appropriate for Comprehensive Correlation evaluation.Typical method for normalizing is min-max standard
Change (Min-Max Normalization), also referred to as deviation standardizes, and is the linear transformation to initial data, reflects end value
It is mapped between [0-1].Transfer function is as follows：
In formula：Max is the maximum value of sample data, and min is the minimum value of sample data.
2. frequency response models
As shown in Fig. 2, M is the comprehensive inertia of system, T is speed-regulating system generalized time constant, and K is that generator function-frequency is static
Characteristic coefficient, KLFor load comprehensive adjustment effect coefficient, Δ ω is generator speed deviation.
For the load of linear change, can be expressed asSo Δ ω can be expressed as：
Time-domain expression is
In formula：
C=(K+L)2；
D=-LT2K-3MTK-LTM+M2；
As can be seen that random load fluctuation under, the maximum offset of frequency not only with load fluctuation amount, unit primary frequency modulation
Ability is related, also related with the damping of system and LOAD FREQUENCY regulatory factor and the inertia of system.
Fig. 3-5 gives under identical load fluctuation, system difference inertia, governor have different difference coefficients with
And there is governor different responses to be delayed, the change curve of system frequency.As can be seen that change of the system frequency with load fluctuation
Change amplitude and unit regulating power are in dull linear variability law, and the regulating power of governor is more excellent, and frequency departure is smaller.
3. primary frequency modulation effect
Primary frequency modulation effect refers to, when mains frequency exceeds 50 ± Δ fsq(unit frequency controlling dead error) and duration are super
When spending 20 seconds, primary frequency modulation unit exceeds 50 ± Δ f in mains frequencysqThe actual power power output (being up to 60 seconds) in period
And originate the device electricity (± Δ Q of the difference of generated outputsY) account for the (± Δ Q of theoretical calculation device electricity in the corresponding timejY) ratio
Example, i.e.,：
(as DX < 0, then：DX=0)；
In formula：DX is the effect of primary frequency modulation；ΔQjYFor corresponding time primary frequency modulation theoretical calculation device electricity；ΔQsY
For the device electricity of the practical incremental portion of primary frequency modulation.Wherein,
In formula, t0It is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, frequency is equal to 50+ Δ
fsqOr it is less than 50- Δ fsqAt the time of；
tIt adjustsExceed 50 ± Δ f for mains frequencysqAnd the duration is more than in the case of 20 seconds, mains frequency exceeds 50 ± Δ
fsqTime, unit are the second；
PSTIt is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, unit is in t030 before moment
It actually contributes average value in second；
PStIt is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, unit is in t0After moment
tIt adjustsThe practical power output of unit in time；
Dt is the integration interval time, is 1-5 seconds.
Working principle of the present invention is as follows：By normalized, to input quantity frequency offset and frequency change rate into
Row linear change is mapped to end value between [0-1].In order to more effectively motivate, supervise power plant to improve unit primary frequency modulation
It, will according to the percentage contribution to frequency stabilization at the time of ability, especially frequency fast-changing initial stage and maximum frequency variation
Unit primary frequency modulation device electricity pulls open gap, the integral that different weights are added according to unit primary frequency modulation percentage contribution of proposition
Electricity algorithm.This method is when the coefficient of colligation of frequency response is greater than 1, using practical power output multiplied by the result of coefficient as integral
The unit output of electricity algorithm, and the standard with the ratio of practical theoretical power output as examination.Above method and index are applicable in
The sound of maximal regulated amplitude and governor is added for large frequency-difference condition in primary frequency modulation performance evaluation under the conditions of small frequency difference
63.21% institute that two evaluation indexes between seasonable, i.e. governor maximum power-adjustable and unit output reach maximum regulatory power
Corresponding delay, and evaluate with adjustment speed that the ratio of the two is characterized the primary frequency modulation performance of unit.The bigger table of speed
The regulation performance of the bright unit is more excellent.
The large frequency-difference and small frequency difference that the present invention is mentioned are instructed by monitoring pitch, and what pitch instruction started to reduce in 15s recognizes
To be small frequency difference, according to the speed adjusting performance of the wire examination method examination unit of small frequency difference；Pitch instruction also keeps maximum opening after 15s
It is large frequency-difference, examines set speed adjustment performance according to the method for large frequency-difference.
Unit primary frequency modulation performance evaluation method proposed by the present invention can accurately reflect the primary of different type unit
Fm capacity.Compared with traditional primary frequency modulation performance evaluation method, according to system small frequency difference, large frequency-difference difference occur for the present invention
Under the conditions of, accordingly give the evaluation index under different operating conditions.When system is under the interference of small frequency difference, consider frequency offset
Coefficient of colligation index with frequency change rate as additional weight；When large frequency-difference interference occurs for system, consider unit maximum
Comprehensive evaluation index of the response time of the amplitude of accommodation and governor as additional weight.When the movement instructed by monitoring pitch
Between judge to carry out evaluation calculating using that index, the requirement for both having met evaluation method real-time also ensures primary frequency modulation
The certainty of performance evaluation.
It should be understood that the part that this specification does not elaborate belongs to the prior art.Finally, it is stated that above
Embodiment is only used to illustrate the technical scheme of the present invention and not to limit it, although having carried out in detail referring to preferred embodiment to the present invention
Illustrate, those skilled in the art should understand that, can with modification or equivalent replacement of the technical solution of the present invention are made,
Without departing from the objective and range of the technical program, it is intended to be within the scope of the claims of the invention.
Claims (5)
1. a kind of primary frequency modulation performance index Evaluation Method, which is characterized in that specific step is as follows for the method：
S1：Generating set sample data is normalized；
S2：According to treated, data establish frequency response models；
S3：According to the model evaluation primary frequency modulation effect in step S2.
2. primary frequency modulation performance index Evaluation Method as described in claim 1, which is characterized in that the specific place of the step S1
Reason includes：Linear transformation is carried out to generating set raw sample data, transfer function is as follows：
In formula, x is sample data, and max is the maximum value of sample data, and min is the minimum value of sample data.
3. primary frequency modulation performance index Evaluation Method as described in claim 1, which is characterized in that the frequency of the step S2 is rung
Answer model foundation process as follows：
For the load of linear change, it is expressed asSo Δ ω can be expressed as：
Time-domain expression is：
In formula：
C=(K+L)2；
D=-LT2K-3MTK-LTM+M2；
M is the comprehensive inertia of system, and T is speed-regulating system generalized time constant, and K is generator function-frequency static characteristic coefficient, KLIt is negative
Lotus comprehensive adjustment effect coefficient, Δ ω are generator speed deviation.
4. primary frequency modulation performance index Evaluation Method as described in claim 1, which is characterized in that evaluate one in the step S3
The method of secondary frequency modulation effect is as follows：
Primary frequency modulation effect refers to, when mains frequency exceeds unit frequency 50 ± Δ of controlling dead error fsqAnd the duration is more than 20 seconds
When, primary frequency modulation unit exceeds unit frequency 50 ± Δ of controlling dead error f in mains frequencysqActual power in period is contributed and is risen
Device electricity ± Δ the Q of the difference of beginning generated outputsYAccount for theoretical calculation device electricity ± Δ Q in the corresponding timejYRatio, i.e.,：
As DX < 0, DX=0 is assert；
In formula, DX is the effect of primary frequency modulation；ΔQjYFor corresponding time primary frequency modulation theoretical calculation device electricity；ΔQsYIt is primary
The device electricity of the practical incremental portion of frequency modulation；
Wherein,
In formula,
t0It is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, frequency is equal to 50+ Δ fsqOr it is less than
50-ΔfsqAt the time of；
tIt adjustsExceed 50 ± Δ f for mains frequencysqAnd the duration is more than in the case of 20 seconds, mains frequency exceeds 50 ± Δ fsqWhen
Between, unit is the second；
PSTIt is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, unit is in t0It is real in 30 seconds before moment
Border power output average value；
PStIt is greater than 50+ Δ f for mains frequency is for 20 secondssqOr it is less than 50- Δ fsqIn the case of, unit is in t0T after momentIt adjustsTime
The practical power output of interior unit；
Dt is the integration interval time.
5. primary frequency modulation performance index Evaluation Method as claimed in claim 4, which is characterized in that primary frequency modulation unit is in power grid
Frequency exceeds unit frequency 50 ± Δ of controlling dead error fsqPeriod is up to 60 seconds, and integration interval time dt is 1-5 seconds.
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| CN110445196A (en) * | 2019-07-31 | 2019-11-12 | 南方电网科学研究院有限责任公司 | A kind of generating set primary frequency regulation effect judgment method |
| CN110601236A (en) * | 2019-09-20 | 2019-12-20 | 国网山东省电力公司电力科学研究院 | Capacity selection method and device of flywheel energy storage compensation device |
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| CN110969366A (en) * | 2019-12-17 | 2020-04-07 | 大连理工大学 | Performance evaluation method for battery energy storage participating in primary frequency modulation |
| CN112698089A (en) * | 2020-12-11 | 2021-04-23 | 国投钦州发电有限公司 | Method for automatically calculating theoretical integral electric quantity and actual integral electric quantity of primary frequency modulation |
| CN112711237A (en) * | 2020-12-29 | 2021-04-27 | 华润电力技术研究院有限公司 | Automatic control quality online evaluation method and system for thermal power generating unit |
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| CN109636247A (en) * | 2019-01-14 | 2019-04-16 | 国电南瑞科技股份有限公司 | A kind of fired power generating unit primary frequency modulation performance performance assessment criteria calculation method and its system |
| CN110445196A (en) * | 2019-07-31 | 2019-11-12 | 南方电网科学研究院有限责任公司 | A kind of generating set primary frequency regulation effect judgment method |
| CN110601236A (en) * | 2019-09-20 | 2019-12-20 | 国网山东省电力公司电力科学研究院 | Capacity selection method and device of flywheel energy storage compensation device |
| CN110601236B (en) * | 2019-09-20 | 2021-07-09 | 国网山东省电力公司电力科学研究院 | Capacity selection method and device of flywheel energy storage compensation device |
| CN110768288A (en) * | 2019-09-27 | 2020-02-07 | 国网天津市电力公司电力科学研究院 | Real-time evaluation method for primary frequency modulation speed regulation unequal rate of thermal generator set |
| CN110969366A (en) * | 2019-12-17 | 2020-04-07 | 大连理工大学 | Performance evaluation method for battery energy storage participating in primary frequency modulation |
| CN110969366B (en) * | 2019-12-17 | 2022-09-16 | 大连理工大学 | Performance evaluation method for battery energy storage participating in primary frequency modulation |
| CN112698089A (en) * | 2020-12-11 | 2021-04-23 | 国投钦州发电有限公司 | Method for automatically calculating theoretical integral electric quantity and actual integral electric quantity of primary frequency modulation |
| CN112698089B (en) * | 2020-12-11 | 2023-11-21 | 国投钦州发电有限公司 | Automatic calculation method for primary frequency modulation theoretical integral electric quantity and actual integral electric quantity |
| CN112711237A (en) * | 2020-12-29 | 2021-04-27 | 华润电力技术研究院有限公司 | Automatic control quality online evaluation method and system for thermal power generating unit |
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Application publication date: 20181123 |