CN110445196A - A kind of generating set primary frequency regulation effect judgment method - Google Patents
A kind of generating set primary frequency regulation effect judgment 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
- H02J3/38—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
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Abstract
The invention discloses a kind of generating set primary frequency regulation effect judgment methods, the described method includes: the PMU data and frequency variation curve figure of acquisition generating set within a preset period of time, and according to the generating set type, theoretical difference coefficient is obtained, the PMU data includes frequency data, power data；According to the PMU data and frequency variation curve figure, practical difference coefficient is obtained；The practical difference coefficient is compared with the theoretical difference coefficient, if the practical difference coefficient is greater than theoretical difference coefficient, the generating set frequency modulation response is unqualified.Using the present invention, it can be determined that whether generating set primary frequency regulation effect is qualified out, can also judge the underproof reason of the generating set.
Description
Technical field
The present invention relates to electric automatization net source coordination fields, sentence more particularly to a kind of generating set primary frequency regulation effect
Disconnected method.
Background technique
The basic goal of Operation of Electric Systems is under the premise of guaranteeing that power quality complies with standard for user's supply of electrical energy.
Frequency is to measure the major criterion of power quality.Since power grid is a huge inertia system, when network re-active power vacancy
When, generator amature accelerates, and mains frequency increases, otherwise mains frequency reduces.Therefore, it is difficult to guarantee that mains frequency is constant always,
It is single that it is necessary to control mains frequency in a certain range.
Primary frequency modulation refers to the frequency of power grid when offrating, and the control system of unit is just automatically in power grid
The increase and decrease of unit active power is controlled, limitation mains frequency variation makes mains frequency maintain stable automatic control process.Work as electricity
When net frequency increases, primary frequency function requires unit to utilize its accumulation of heat fast cutback, conversely, unit quickly increases load.It is logical
Crossing this process makes system reach new balance, and the variation of mains frequency is limited in defined error range.If
In actual motion, when mains frequency increases, unit active power when unit active power continues to rise or mains frequency declines
Continue to decline, then illustrates that reversed adjusting phenomenon occurs in unit, referred to as demodulate.Each unit has its theoretical difference coefficient, this
Coefficient ensure that unit has enough actuating quantities when system frequency fluctuates to support mains frequency to stablize, if unit is in thing
Practical difference coefficient is excessive in part, then unit can not make due contribution for systems stabilisation frequency, this phenomenon be actuating quantity not
Foot.Anti-tune and actuating quantity deficiency belong to act unqualified.
Primary frequency function is dynamic one of the means for guaranteeing network re-active power balance.It is primarily involved in power grid one at present
Secondary frequency modulation has fired power generating unit, Hydropower Unit, and part wind-powered electricity generation, photovoltaic, energy storage also have primary frequency regulation of power network ability.
Grid company has done relevant regulations to primary frequency modulation management at present, and takes in power grid overall frequency control plane
Obtained good result.But primary frequency modulation itself is only divided for specific unit primary frequency modulation situation for unit
Analysis, could preferably evaluate unit primary frequency modulation movement whether meet the requirements, and then for its Primary frequency control ability improvement or even
The promotion of system Primary frequency control ability provides reference.
The prior art only has qualitative evaluation to unit primary frequency modulation situation, can not be for primary specific without quantitative analysis
Accident provide each unit response it is whether qualified, can only judge whether to reach stability requirement from system overall frequency response,
It cannot achieve the analysis to single unit Primary frequency control ability, be unfavorable for the improvement of subsequent unit Primary frequency control ability.
Summary of the invention
To solve the above-mentioned problems, the object of the present invention is to provide a kind of generating set primary frequency regulation effect judgment method,
The method may determine that whether generating set primary frequency regulation effect is qualified, can also judge that the generating set is unqualified
The reason of.
Based on this, the embodiment of the invention provides a kind of generating set primary frequency regulation effect judgment method, the method packets
It includes:
The PMU data and frequency variation curve figure of generating set within a preset period of time are acquired, and according to the power generation
Machine set type obtains theoretical difference coefficient, and the PMU data includes frequency data, power data；
According to the PMU data and frequency variation curve figure, practical difference coefficient is calculated；
The practical difference coefficient is compared with the theoretical difference coefficient, if the practical difference coefficient is greater than reason
By difference coefficient, then the generating set frequency modulation response is unqualified.
Wherein, described according to the PMU data and frequency variation curve figure, calculating practical difference coefficient includes:
A and frequency is minimum or highest point at the beginning of being obtained in preset time period according to the frequency variation curve figure
Frequency highest or minimum point after B correspond to moment C；
The calculation formula of the practical difference coefficient is as follows:
Wherein, faAnd fcRespectively A, C dot frequency, PAAnd PCRespectively A, C point power, PNFor unit rated power, fNFor
System nominal frequency.
Wherein, if the corresponding frequency of A and described minimum or highest dot frequency mistake at the beginning of in the preset time period
The difference of highest or minimum dot frequency afterwards exceeds unit dead zone frequency, and the practical difference coefficient is greater than zero and is less than reason
By difference coefficient, then the charging unit primary frequency modulation response is qualified.
Wherein, if the unit output reaches the preset percentage of maximum output, the generating set primary frequency regulation is rung
Answer qualification.
Wherein, if the corresponding frequency of A and described minimum or highest dot frequency mistake at the beginning of in the preset time period
The difference of highest or minimum dot frequency afterwards exceeds unit dead zone frequency, and the practical difference coefficient is not more than zero, then institute
It is unqualified to state charging unit primary frequency modulation response, and reason is to demodulate.
Wherein, if the corresponding frequency of A and described minimum or highest dot frequency mistake at the beginning of in the preset time period
The difference of highest or minimum dot frequency afterwards is greater than the preset percentage of maximum power without departing from unit dead zone frequency, the difference
And the practical difference coefficient is not more than zero, then the charging unit primary frequency modulation response is unqualified, and reason is to demodulate.
Wherein, if the unit output is not up to the preset value of maximum output, and the beginning in the preset time period
The difference of highest or minimum point power after the corresponding power of moment A and described minimum or highest point is less than the generating set
The preset percentage of gross capability, then the generating set primary frequency regulation response is unqualified, and reason is that actuating quantity is insufficient.
The embodiment of the invention also provides a kind of generating set primary frequency regulation effect judgment means, described device includes:
Acquisition module, for acquiring the PMU data and frequency variation curve figure of generating set within a preset period of time, and
According to the generating set type, theoretical difference coefficient is obtained, the PMU data includes frequency data, power data；
Computing module, for calculating practical difference coefficient according to the PMU data and frequency variation curve figure；
Comparison module, for the practical difference coefficient to be compared with the theoretical difference coefficient, if the reality
Difference coefficient is greater than theoretical difference coefficient, then the generating set frequency modulation response is unqualified.
Equipment is judged the embodiment of the invention also provides a kind of frequency modulation effect, including processor, memory and is stored in
In the memory and it is configured as the computer program executed by the processor, the processor executes the computer journey
Above-mentioned generating set primary frequency regulation effect judgment method is realized when sequence.
The embodiment of the invention also provides a kind of computer readable storage mediums, which is characterized in that described computer-readable
Storage medium includes the computer program of storage, wherein controls described computer-readable deposit in computer program operation
Equipment executes such as above-mentioned generating set primary frequency regulation effect judgment method where storage media.
Using the present invention, the PMU data and frequency variation curve figure of generating set within a preset period of time, and root are acquired
According to the generating set type, theoretical difference coefficient is obtained, the PMU data includes frequency data, power data；According to described
PMU data and frequency variation curve figure calculate practical difference coefficient；Pass through the practical difference coefficient and the theoretical tune difference system
Whether several comparison, unit output reach the preset value of maximum output, in preset time period at the beginning of the corresponding power of A with
The difference of highest or minimum point power after described minimum or highest point and the preset percentage of the generating set gross capability
Ratio equity judge whether unit qualified to the response of primary frequency modulation, if unit primary frequency modulation is unqualified, the present invention can be with
The underproof reason of the unit is obtained, underproof reason includes anti-tune, actuating quantity is insufficient.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow chart of generating set primary frequency regulation effect judgment method provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of generating set primary frequency regulation device provided in an embodiment of the present invention；
Fig. 3 be it is provided in an embodiment of the present invention judge generating set primary frequency regulation effect whether He Ge flow chart；
Fig. 4 is frequency variation curve figure provided in an embodiment of the present invention；
Fig. 5 is typical action amount deficiency machine group picture provided in an embodiment of the present invention；
Fig. 6 is typical anti-tune machine group picture provided in an embodiment of the present invention；
Fig. 7 is the frequency variation curve figure of determining ABC point provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the flow chart of generating set primary frequency regulation effect judgment method provided in an embodiment of the present invention, the method
Include:
S101, the PMU data and frequency variation curve figure of acquisition generating set within a preset period of time, and according to described
Generating set type obtains theoretical difference coefficient, and the PMU data includes frequency data, power data；
Generating set refers to the power generator that mechanical energy or other rechargeable energy can be changed into electric energy.Common power generation
Unit is usually driven by steam turbine, the hydraulic turbine or internal combustion engine (engines such as gasoline engine, diesel engine).
Acquire the data of each unit PMU (power management unit, Power Management Unit) in preset time.
The PMU data includes many data such as frequency, power, voltage, electric current, phase angle.
The frequency variation diagram is the frequency variation diagram of generating set within a preset period of time.
The generating set type includes fired power generating unit, Hydropower Unit, can also be nuclear power unit, different generating sets
Type has different theoretical difference coefficients, for example, fired power generating unit 5%, Hydropower Unit 4%, according to the generator
Set type obtains corresponding theoretical difference coefficient.
S102, according to the PMU data and frequency variation curve figure, obtain practical difference coefficient；
A and frequency is minimum or highest point at the beginning of being obtained in preset time period according to the frequency variation curve figure
Frequency highest or minimum point point after B correspond to moment C, please refer to Fig. 7；
The calculation formula of the practical difference coefficient is as follows:
Wherein, faAnd fcRespectively A, C dot frequency, PAAnd PCRespectively A, C point power, PNFor unit rated power, fNFor
System nominal frequency, for China Power Grids, this value is 50.
S103, the practical difference coefficient is compared with the theoretical difference coefficient, if the practical difference coefficient
Greater than theoretical difference coefficient, then the generating set frequency modulation response is unqualified.
The primary of the generating set is judged in addition to the practical difference coefficient to be compared with theoretical difference coefficient
Except whether frequency modulation response is qualified, other judgment methods can also be used, referring to FIG. 3, Fig. 3 is provided in an embodiment of the present invention
Judge generating set primary frequency regulation effect whether He Ge flow chart.
The first situation:
The actual power of the unit is greater than the first preset percentage such as 90% of maximum power, then the generating set one
Secondary frequency modulation response is qualified.
Second situation:
If the actual power of the unit is not more than the first preset percentage of maximum power, also need further to sentence
It is disconnected, if the frequency variation of the unit is the corresponding frequency of A and described minimum or highest point at the beginning of preset time period is interior
The difference of highest or minimum dot frequency after frequency exceeds unit dead zone frequency, and the practical difference coefficient greater than zero and
Less than theoretical difference coefficient, then the generating set primary frequency regulation response is qualified.
The third situation:
If the actual power of the unit is not more than the first preset percentage of maximum power, also need further to sentence
It is disconnected, if the frequency variation of the unit is the corresponding frequency of A and described minimum or highest point at the beginning of preset time period is interior
The difference of highest or minimum dot frequency after frequency then also needs further to judge, if described without departing from unit dead zone frequency
The practical difference coefficient of unit is greater than 0 and the changed power is less than or equal to the second preset percentage such as 1% of maximum power, then
The generating set primary frequency regulation response is qualified.,
In addition to three cases above, except the generating set primary frequency regulation response is qualified, remaining situation can determine whether institute
It is not qualified to state generating set primary frequency regulation response.Judge that the generating set primary frequency regulation responds not qualified reason below.
If A, the actual power of the unit is not more than the first preset percentage of maximum power, the frequency variation does not surpass
Cross unit dead zone frequency, and the practical difference coefficient of the unit is no more than 0 or the changed power is greater than the of maximum power
Two preset percentages, then the generating set primary frequency regulation response is not qualified, and the not qualified reason is to demodulate.
If B, the actual power of the unit is not more than the first preset percentage of maximum power, the frequency variation is more than
Unit dead zone frequency, and be unsatisfactory for practical difference coefficient greater than 0 and be less than this condition of theoretical difference coefficient, at this moment, if described
The practical difference coefficient of generating set is less than 0, then the generating set primary frequency regulation response is not qualified, and the not qualified reason
To demodulate.
If C, the actual power of the unit is not more than the first preset percentage of maximum power, the frequency variation is more than
Unit dead zone frequency, and be unsatisfactory for practical difference coefficient greater than 0 and be less than this condition of theoretical difference coefficient, at this moment, if described
The practical difference coefficient of generating set is more than or equal to 0, then the generating set primary frequency regulation response is not qualified and described not qualified
Reason is that actuating quantity is insufficient.
The utilization for illustrating the above method with a specific example below, according to Fig. 4, can obtain frequency by 50.057Hz (A point,
11:03:17) start, it is minimum to be down to 49.820Hz (B point, 11:03:23), be restored to later 49.873Hz (C point, 11:03:
27).This frequency wave momentum has been more than all kinds of unit primary frequency modulations operating dead zone.Although subsequent frequency continues to increase, distance A
The point time is longer, has been not belonging to the scope of primary frequency modulation consideration.
Each unit data are analyzed, are obtained under the secondary event, the Qualification of each unit primary frequency modulation movement.Wherein
One typical unqualified unit action situation is as follows:
Fig. 5 is typical action amount deficiency machine group picture provided in an embodiment of the present invention, and contribute about 530MW before the unit failure,
Contribute about 540MW after accident, improves about 10MW, and movement range is about 2.0%.And frequency variation is 0.2Hz, change rate is
0.4%, thus difference coefficient is about 0.4%/2.0%=20%, does not meet the requirement of such unit theory difference coefficient 10%.
Fig. 6 be it is provided in an embodiment of the present invention it is typical demodulate unit, although it can be seen that system frequency in event procedure
Decline, but unit output also declines, and occurs demodulating, unit primary frequency modulation movement is unqualified.
Whether the judgment rule beyond dead zone is explained as follows table for the generating set frequency variation:
For serial number 2-4, since maximum frequency A point is lower than deadband upper limit 50.05Hz, most for serial number 2-4, due to maximum
Frequency A point is lower than deadband upper limit 50.05Hz, and minimum frequency C point is higher than deadband lower limit 49.95Hz, it is thus regarded that frequency variation is not
Beyond dead zone.
For serial number 5-7, although minimum frequency is still higher than 49.95Hz, maximum frequency has been more than 50.05Hz, thus is recognized
Dead zone is had exceeded for frequency variation.
As long as to sum up, maximum frequency or minimum frequency any one have exceeded dead zone section, that is, think that frequency changes
Beyond dead zone.
The present embodiment, the PMU data and frequency variation curve figure of acquisition generating set within a preset period of time, and according to
The generating set type obtains theoretical difference coefficient, and the PMU data includes frequency data, power data；According to described
PMU data and frequency variation curve figure calculate practical difference coefficient；Pass through the practical difference coefficient and the theoretical tune difference system
Whether several comparison, unit output reach the preset value of maximum output, in preset time period at the beginning of the corresponding power of A with
The difference of highest or minimum point power after described minimum or highest point and the preset percentage of the generating set gross capability
Ratio equity judge whether unit qualified to the response of primary frequency modulation, if unit primary frequency modulation is unqualified, the present invention can be with
The underproof reason of the unit is obtained, underproof reason includes anti-tune, actuating quantity is insufficient.
Fig. 2 is the schematic diagram of generating set primary frequency regulation device provided in an embodiment of the present invention, and described device includes:
Acquisition module 201, for acquiring the PMU data and frequency variation curve figure of generating set within a preset period of time,
And according to the generating set type, theoretical difference coefficient is obtained, the PMU data includes frequency data, power data；
Computing module 202, for calculating practical difference coefficient according to the PMU data and frequency variation curve figure；
Comparison module 203, for the practical difference coefficient to be compared with the theoretical difference coefficient, if the reality
Border difference coefficient is greater than theoretical difference coefficient, then the generating set frequency modulation response is unqualified.
Technical characteristic and the technology effect for a kind of generating set primary frequency regulation effect judgment means that the embodiment of the present invention proposes
Fruit is identical as the method that the embodiment of the present invention proposes, it will not be described here.
Equipment is judged the embodiment of the invention also provides a kind of frequency modulation effect, including processor, memory and is stored in
In the memory and it is configured as the computer program executed by the processor, the processor executes the computer journey
Above-mentioned generating set primary frequency regulation effect judgment method is realized when sequence.
The embodiment of the invention also provides a kind of computer readable storage mediums, which is characterized in that described computer-readable
Storage medium includes the computer program of storage, wherein controls described computer-readable deposit in computer program operation
Equipment executes such as above-mentioned generating set primary frequency regulation effect judgment method where storage media.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.
The more specific example (non-exhaustive list) of computer-readable medium include the following: there are one or more wirings
Electrical connection section (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can then be edited, be interpreted or when necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of generating set primary frequency regulation effect judgment method characterized by comprising
The PMU data and frequency variation curve figure of generating set within a preset period of time are acquired, and according to the generating set
Type obtains theoretical difference coefficient, and the PMU data includes frequency data, power data；
According to the PMU data and frequency variation curve figure, practical difference coefficient is calculated；
The practical difference coefficient is compared with the theoretical difference coefficient, if the practical difference coefficient is greater than theoretical adjust
Poor coefficient, then the generating set frequency modulation response is unqualified.
2. generating set primary frequency regulation effect judgment method as described in claim 1, which is characterized in that described according to the PMU
Data and frequency variation curve figure, calculating practical difference coefficient includes:
A and after frequency is minimum or highest point B at the beginning of being obtained in preset time period according to the frequency variation curve figure
Frequency highest or minimum point point correspond to moment C；
The calculation formula of the practical difference coefficient is as follows:
Wherein, faAnd fcRespectively A, C dot frequency, PAAnd PCRespectively A, C point power, PNFor unit rated power, fNFor system
Rated frequency.
3. generating set primary frequency regulation effect judgment method as described in claim 1, which is characterized in that if the preset time period
The difference of highest or minimum dot frequency at the beginning of interior after the corresponding frequency of A and described minimum or highest dot frequency exceeds
Unit dead zone frequency, and the practical difference coefficient is greater than zero and is less than theoretical difference coefficient, then and the charging unit is primary
Frequency modulation response is qualified.
4. generating set primary frequency regulation effect judgment method as described in claim 1, which is characterized in that if the unit output reaches
To the preset percentage of maximum output, then the generating set primary frequency regulation response is qualified.
5. generating set primary frequency regulation effect judgment method as described in claim 1, which is characterized in that if the preset time period
The difference of highest or minimum dot frequency at the beginning of interior after the corresponding frequency of A and described minimum or highest dot frequency exceeds
Unit dead zone frequency, and the practical difference coefficient is not more than zero, then and the charging unit primary frequency modulation response is unqualified, and
Reason is to demodulate.
6. generating set primary frequency regulation effect judgment method as described in claim 1, which is characterized in that if the preset time period
The difference of highest or minimum dot frequency at the beginning of interior after the corresponding frequency of A and described minimum or highest dot frequency does not surpass
Unit dead zone frequency, the difference are greater than the preset percentage of maximum power out and the practical difference coefficient is not more than zero, then
The charging unit primary frequency modulation response is unqualified, and reason is to demodulate.
7. generating set primary frequency regulation effect judgment method as described in claim 1, which is characterized in that if the unit output is not
Reach the preset value of maximum output, and in the preset time period at the beginning of the corresponding power of A and described minimum or most
The difference of highest or minimum point power after high point is less than the preset percentage of the generating set gross capability, the then power generation
The response of unit primary frequency modulation is unqualified, and reason is that actuating quantity is insufficient.
8. a kind of generating set primary frequency regulation effect judgment means characterized by comprising
Acquisition module, for acquiring the PMU data and frequency variation curve figure of generating set within a preset period of time, and according to
The generating set type obtains theoretical difference coefficient, and the PMU data includes frequency data, power data；
Computing module, for calculating practical difference coefficient according to the PMU data and frequency variation curve figure；
Comparison module, for the practical difference coefficient to be compared with the theoretical difference coefficient, if the practical tune is poor
Coefficient is greater than theoretical difference coefficient, then the generating set frequency modulation response is unqualified.
9. a kind of frequency modulation effect judges equipment, including processor, memory and storage in the memory and are configured as
The computer program executed by the processor, the processor realize such as claim 1 to 7 when executing the computer program
Any one of described in generating set primary frequency regulation effect judgment method.
10. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium includes the calculating of storage
Machine program, wherein equipment where controlling the computer readable storage medium in computer program operation is executed as weighed
Benefit require any one of 1 to 7 described in generating set primary frequency regulation effect judgment method.
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| CN111638400A (en) * | 2020-06-05 | 2020-09-08 | 国网山东省电力公司电力科学研究院 | Primary frequency modulation monitoring system and method based on RTU (remote terminal Unit) standby check |
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