CN107611977B - Industrial thermic load group participates in the control system and method for primary frequency regulation of power network - Google Patents
Industrial thermic load group participates in the control system and method for primary frequency regulation of power network Download PDFInfo
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Abstract
The invention discloses control systems and method that a kind of industrial thermic load group participates in primary frequency regulation of power network, wherein the control system includes primary frequency modulation compensating controller, it is configured as: according to mains frequency fluctuation deviation and thermic load group's set value of the power, generating the load compensation instruction that thermic load group participates in primary frequency regulation of power network；And fling-cut switch, it is configured as: carrying out the switching of primary frequency function according to thermic load group system and operation of power networks demand；The thermic load group controller is configured as: judging whether each thermic load subset meets the condition for participating in primary frequency modulation investment；If satisfied, then calculating the primary frequency modulation load that each thermic load subset undertakes in distribution thermic load group, while automatic heat load calculation group participates in the time of primary frequency regulation of power network, the automatic excision of time-out；Each thermic load subset is configured as: the primary frequency modulation load distributed according to thermic load group controller completes corresponding Load Regulation.
Description
Technical field
The invention belongs to primary frequency regulation of power network fields more particularly to a kind of industrial thermic load group to participate in primary frequency regulation of power network
Control system and method.
Background technique
With the Fast Construction of generation of electricity by new energy, nuclear energy power generation and extra-high voltage grid in China's electric system, power grid knot
Biggish variation has occurred in structure, and electric system flexible modulation demand is higher and higher.In addition, the measure of precision with electrical equipment is got over
Come higher, the requirement to power supply quality is also increasingly stringenter.Operation of power networks frequency is joined as an important technology of power supply quality
Number, control technology index are necessarily also increasingly stringenter, and the technical research of primary frequency modulation is also just more and more important, therefore in power train
In system operation, introducing more primary frequency modulation technological means is very necessary to the high-quality stable operation of power grid.
Currently, the primary frequency modulation of China's electric system is mainly undertaken by power generation side apparatus, i.e., generating set is fast using itself
Velocity modulation is haircuted the ability of electric load, and load compensation of the grid frequency amplitude compared with minor swing when is completed.In view of being sent out in current power grid
The Primary frequency control ability of motor group is influenced by various factors such as operating parameter, coal quality, the methods of operation, primary frequency modulation potentiality
Also performed to substantially ultimate attainment, how introducing more primary frequency modulation technological means will be that important in a period of time from now on is ground
Study carefully project.
The dynamic equilibrium of electric system is completed jointly by supply and demand two sides, and load is mainly utilized in the primary frequency modulation of generating set
The tuning performance of supply side, and workload demand side (i.e. with electric consumption side) does not design the primary frequency modulation function for undertaking power grid substantially at present
Energy.In conjunction with the fast development of current industrial thermic load, increasing with electric consumption, this kind of thermic load is used relative to other transient state
Electric load has larger heat accumulation inertia, and the electric load of short time changes the riding quality that will not influence its thermic load system, such as
What utilizes the technical characterstic of this type load, changes the consumption of its load in a short time, carries out primary frequency regulation of power network compensation, be to need
The main problem of solution.
Summary of the invention
In order to solve the deficiencies in the prior art, the first aspect of the embodiment of the present invention provides a kind of industrial thermic load group ginseng
With the control system of primary frequency regulation of power network, which introduces industrial load consumption system the primary frequency control system of power grid, from negative
Lotus consumes the Primary frequency control ability that side promotes power grid, enriches the technological means of primary frequency regulation of power network, transports for power grid high-quality stable
Row provides effective technical support.
A kind of industrial thermic load group that the first aspect of the embodiment of the present invention provides participates in the control system of primary frequency regulation of power network
System, comprising:
Primary frequency modulation compensating controller, is configured as: being set according to mains frequency fluctuation deviation and thermic load group's power
Definite value generates the load compensation instruction that thermic load group participates in primary frequency regulation of power network；And
Fling-cut switch is configured as: carrying out primary frequency function according to thermic load group system and operation of power networks demand
Switching: when primary frequency function investment, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is sent to thermic load
Group controller；When primary frequency modulation excision, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is automatically zero；
The thermic load group controller is configured as: being judged whether each thermic load subset meets and is participated in primary frequency modulation investment
Condition；If satisfied, the primary frequency modulation load that each thermic load subset undertakes in distribution thermic load group is then calculated, while from
Dynamic heat load calculation group participates in the time of primary frequency regulation of power network, the automatic excision of time-out；
Each thermic load subset is configured as: the primary frequency modulation load distributed according to thermic load group controller completes phase
Answer Load Regulation.
In conjunction with the embodiment of the present invention in a first aspect, in the first embodiment of the first aspect of the embodiment of the present invention,
The primary frequency modulation compensating controller, comprising:
Frequency departure generation module, is configured as: according to power grid real time execution frequency compared with rated frequency setting value,
Generate mains frequency fluctuation deviation；And
Primary frequency modulation penalty function F (x) module, is configured as: according to mains frequency fluctuation deviation and thermic load group
Set value of the power generates the load compensation instruction that thermic load group participates in primary frequency regulation of power network.
In this embodiment, power grid real time execution frequency can be acquired by operation of power networks frequency transmitter and be obtained；
Rated frequency setting value, the setting value can be modified according to actual needs, be generally set to the operation of power grid standard in China
Frequency 50Hz.
In the first embodiment in conjunction with the first aspect of the embodiment of the present invention, primary frequency modulation penalty function F (x) module
In primary frequency modulation penalty function F (x) be polygronal function and output be thermic load group participate in primary frequency regulation of power network load compensation
Instruction；The load compensation instruction that the thermic load group participates in primary frequency regulation of power network is determined as according to mains frequency fluctuation deviation
Maximum frequency modulation compensates load value or zero；Wherein, maximum frequency modulation compensation load value is correspondingly arranged with thermic load group's power bracket.
In this embodiment, it responds maximum mains frequency fluctuation deviation and primary frequency modulation dead zone can be according to practical fortune
Market condition is adjusted.
In conjunction with the embodiment of the present invention in a first aspect, in second of embodiment of the first aspect of the embodiment of the present invention,
Each thermic load subset meets the condition for participating in primary frequency modulation investment are as follows:
Within a preset range, which just may participate in the primary tune of power grid for the load consumption of corresponding thermic load subset
Frequently；Otherwise, the thermic load group controller is configured as the primary frequency modulation instruction that automatic blocking falls the thermic load subset.
For the hot systems stable operation for guaranteeing each thermic load subset, when the load consumption of thermic load subset be set in it is a certain
When in range, which just may participate in the primary frequency modulation of power grid, and otherwise in thermic load group controller, automatic blocking is fallen
The primary frequency modulation of the subset instructs.
Such as: it include n (n is more than or equal to 1 positive integer) a thermic load subset, Mei Gere in some thermic load group
The rated consumption power of load subset is Qni, and each thermic load subset consumption set value of the power is Qsi, corresponding thermic load subset
Load consume and in preset range be typically set to 30%Qni < Qsi≤90%Qni, can be adjusted according to the actual operation.
In conjunction with the embodiment of the present invention in a first aspect, in the third embodiment of the first aspect of the embodiment of the present invention,
In the thermic load group controller, it is assigned to the primary frequency modulation instruction for the thermic load subset for respectively undertaking primary frequency modulation task
Are as follows:
Each wastage in bulk or weight thermic load subset consumption set value of the power and undertake all thermic load subsets of primary frequency modulation task
The ratio of set value of the power, then the product instructed with the frequency modulation for undertaking all thermic load subsets of primary frequency modulation task.
In entire thermic load group, since service condition limits, it is negative to certainly exist certain heat that cannot undertake primary frequency modulation
Lotus subset participates in the thermic load subset of primary frequency regulation of power network by each for the primary frequency modulation overall performance for realizing entire thermic load group
From consumption power setting ratio, the primary frequency modulation task of thermic load group is undertaken.
In conjunction with the embodiment of the present invention in a first aspect, in the 4th kind of embodiment of the first aspect of the embodiment of the present invention,
It is more than default maximum duration constraint when certain primary frequency regulation of power network actuation time, and operation of power networks frequency does not restore dead to frequency
When running in area, the thermic load group controller is configured as cutting off the primary frequency function of thermic load group system automatically, restores
State is run before frequency modulation.
Wherein, the time feature that maximum duration constraint considers primary frequency regulation of power network and frequency modulation frequency modulation, the time-constrain are preset
It is generally set to 3 minutes, can be adjusted according to running situation.
The second aspect of the embodiment of the present invention provides a kind of control system of industrial thermic load group participation primary frequency regulation of power network
The control method of system.
The industrial thermic load group that the second aspect of the embodiment of the present invention provides participates in the control system of primary frequency regulation of power network
Control method, comprising:
Step 1: primary frequency modulation compensating controller is raw according to mains frequency fluctuation deviation and thermic load group's set value of the power
It is instructed at the load compensation that thermic load group participates in primary frequency regulation of power network and is sent to fling-cut switch；
Step 2: fling-cut switch carries out the switching of primary frequency function according to thermic load group system and operation of power networks demand: when
When primary frequency function is put into, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is sent to thermic load group control
Device；When primary frequency modulation excision, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is automatically zero；
Step 3: thermic load group controller judges whether each thermic load subset meets the condition for participating in primary frequency modulation investment；
If satisfied, then calculating the primary frequency modulation load that each thermic load subset undertakes in distribution thermic load group, while automatic calculating
Thermic load group participates in the time of primary frequency regulation of power network, the automatic excision of time-out；
Step 4: each thermic load subset is configured the primary frequency modulation load distributed according to thermic load group controller, completes
Corresponding Load Regulation.
In conjunction with the second aspect of the embodiment of the present invention, in the first embodiment of the second aspect of the embodiment of the present invention,
In the step 1, thermic load group participate in primary frequency regulation of power network load compensation instruction according to mains frequency fluctuation deviation come
It is determined as maximum frequency modulation compensation load value or zero；Wherein, load value is corresponding with thermic load group's power bracket sets for the compensation of maximum frequency modulation
It sets.
In conjunction with the second aspect of the embodiment of the present invention, in second of embodiment of the second aspect of the embodiment of the present invention,
In the step 3, each thermic load subset meets the condition for participating in primary frequency modulation investment are as follows:
Within a preset range, which just may participate in the primary tune of power grid for the load consumption of corresponding thermic load subset
Frequently；Otherwise, the thermic load group controller is configured as the primary frequency modulation instruction that automatic blocking falls the thermic load subset.
In conjunction with the second aspect of the embodiment of the present invention, in the third embodiment of the second aspect of the embodiment of the present invention,
In the step 3, the thermic load group controller is assigned to the primary tune for respectively undertaking the thermic load subset of primary frequency modulation task
Frequency instructs are as follows:
Each wastage in bulk or weight thermic load subset consumption set value of the power and undertake all thermic load subsets of primary frequency modulation task
The ratio of set value of the power, then the product instructed with the frequency modulation for undertaking all thermic load subsets of primary frequency modulation task.
In conjunction with the second aspect of the embodiment of the present invention, in the 4th kind of embodiment of the second aspect of the embodiment of the present invention,
In the step 3, constrained when certain primary frequency regulation of power network actuation time more than default maximum duration, and operation of power networks frequency
When not restoring to frequency dead band to run, thermic load group controller cuts off the primary frequency function of thermic load group's system automatically, extensive
State is run before polyphony frequency.
Compared with prior art, the beneficial effects of the present invention are:
The present invention makes full use of the technical characterstic of industrial thermic load systems mass, big inertia, provides a kind of industry heat
Load group participates in the control system of primary frequency regulation of power network, and industrial load consumption system is introduced to the primary frequency control system of power grid, from
Load consumes the Primary frequency control ability that side promotes power grid, enriches the technological means of primary frequency regulation of power network, is power grid high-quality stable
Operation provides effective technical support；In view of the requirement of primary frequency modulation in operation of power networks is increasingly stringenter, and industrial thermic load
Capacity is also increasing, and the technical characterstic of industrial thermic load group is made full use of to participate in the primary frequency modulation of power grid, will become electricity
The new technological means of net primary frequency modulation has preferable application prospect.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the control system schematic diagram that a kind of industrial thermic load group of the invention participates in primary frequency regulation of power network.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Fig. 1 is the control system schematic diagram that a kind of industrial thermic load group of the invention participates in primary frequency regulation of power network.
As shown in Figure 1, a kind of industrial thermic load group of the offer of the embodiment of the present invention participates in the control of primary frequency regulation of power network
System, comprising:
(1) primary frequency modulation compensating controller is configured as: according to mains frequency fluctuation deviation and thermic load group's power
Setting value generates the load compensation instruction that thermic load group participates in primary frequency regulation of power network.
Wherein, the primary frequency modulation compensating controller, comprising:
Frequency departure generation module ADD, is configured as: according to power grid real time execution frequency and rated frequency setting value ratio
Compared with generation mains frequency fluctuation deviation；And
Primary frequency modulation penalty function F (x) module, is configured as: according to mains frequency fluctuation deviation and thermic load group
Set value of the power generates the load compensation instruction that thermic load group participates in primary frequency regulation of power network.
In this embodiment, power grid real time execution frequency can be acquired by operation of power networks frequency transmitter and be obtained；
Rated frequency setting value, the setting value can be modified according to actual needs, be generally set to the operation of power grid standard in China
Frequency 50Hz.
In a specific embodiment, the primary frequency modulation penalty function F (x) in primary frequency modulation penalty function F (x) module is folding
Line function and output are the load compensation instruction that thermic load group participates in primary frequency regulation of power network；It is primary that the thermic load group participates in power grid
The load compensation instruction of frequency modulation is determined as maximum frequency modulation compensation load value or zero according to mains frequency fluctuation deviation；Wherein,
Maximum frequency modulation compensation load value is correspondingly arranged with thermic load group's power bracket.
In this embodiment, it responds maximum mains frequency fluctuation deviation and primary frequency modulation dead zone can be according to practical fortune
Market condition is adjusted.
Such as:
A certain thermic load group rated consumption power is Qn, and responding maximum mains frequency fluctuation deviation is 0.2Hz, primary to adjust
Frequency dead zone is set as ± 0.033Hz and (responds maximum mains frequency fluctuation deviation and primary frequency modulation dead zone can be according to actual motion
Situation is adjusted), it is Qs that thermic load group, which consumes set value of the power, and thermic load group's primary frequency modulation compensates load instruction Qq, protecting
In the case that card does not influence thermic load system riding quality, different traffic coverage thermic load group maximum frequency modulation compensate load such as table 1
Shown, it is as shown in table 2 that primary frequency modulation penalty function F (x) exports polygronal function table.
Table 1: thermic load group's maximum frequency modulation compensation load corresponds to table
Table 2: primary frequency modulation penalty function F (x) exports polygronal function table
| Mains frequency fluctuation deviation Hz | Corresponding output frequency modulation compensates load instruction Qq |
| 1 | -Qmax |
| 0.2 | -Qmax |
| 0.033 | 0 |
| -0.033 | 0 |
| -0.2 | Qmax |
| -1 | Qmax |
(2) fling-cut switch is configured as: carrying out primary frequency function according to thermic load group system and operation of power networks demand
Switching: when primary frequency function investment, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is sent negative to heat
Lotus group controller；When primary frequency modulation excision, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is automatically zero.
(3) thermic load group controller is configured as: being judged whether each thermic load subset meets and is participated in primary frequency modulation investment
Condition；If satisfied, the primary frequency modulation load that each thermic load subset undertakes in distribution thermic load group is then calculated, while from
Dynamic heat load calculation group participates in the time of primary frequency regulation of power network, the automatic excision of time-out.
Such as: it include n thermic load subset in some thermic load group, the rated consumption power of each thermic load subset is
Qni, andEach thermic load subset consumption set value of the power is Qsi, and
A) thermic load subset participates in the condition judgement of primary frequency regulation of power network.Hot systems to guarantee each thermic load subset are steady
Fixed operation (is typically set to 30%Qni < Qsi≤90% when the consumption of the load of thermic load subset is set within a certain range
Qni can be adjusted according to the actual operation), which just may participate in the primary frequency modulation of power grid, otherwise negative in heat
In lotus group controller, automatic blocking falls the primary frequency modulation instruction of the subset.
B) the primary frequency modulation load that each thermic load subset undertakes in distribution thermic load group system is calculated.In entire heat
In load group, since service condition limits, certain thermic load subsets that cannot undertake primary frequency modulation are certainly existed, it is entire to realize
The primary frequency modulation overall performance of thermic load group participates in the thermic load subset of primary frequency regulation of power network by respective consumption power setting ratio
Example, undertakes the primary frequency modulation task of thermic load group.
Assuming that there is m (m is more than or equal to 1 integer) each subset that can undertake primary frequency modulation task, Mei Gere in system
It is Qqi that load subset, which undertakes primary frequency modulation instruction,Undertake the total consumed power of m subset of primary frequency modulation task
Setting value is
Thermic load group controller is assigned to the subset primary frequency modulation instruction for respectively undertaking primary frequency modulation task are as follows:
C) thermic load group participates in the calculating of primary frequency regulation of power network time-constrain
The accumulation of heat inertia of thermic load group can flexibly participate in the primary frequency modulation of power grid, but the stable operation of heating system
It is required that limitation, thermic load group does not allow to change system consumption Power operation for a long time, and otherwise the hot property of thermic load group will be sent out
It is raw to change.
Therefore the maximum duration constraint for needing setting thermic load group to participate in primary frequency regulation of power network in the present system (considers power grid one
The time feature of secondary frequency modulation and frequency modulation frequency modulation, the time-constrain are generally set to 3 minutes, can be according to running situation tune
It is whole), when certain primary frequency regulation of power network actuation time is more than the time-constrain and operation of power networks frequency is not restored to frequency dead band
When interior operation, thermic load group controller cuts off the primary frequency function of thermic load group automatically, and state is run before restoring frequency modulation.
(4) each thermic load subset is configured as: the primary frequency modulation load distributed according to thermic load group controller is completed
Corresponding Load Regulation.
The present invention makes full use of the technical characterstic of industrial thermic load systems mass, big inertia, provides a kind of industry heat
Load group participates in the control system of primary frequency regulation of power network, and industrial load consumption system is introduced to the primary frequency control system of power grid, from
Load consumes the Primary frequency control ability that side promotes power grid, enriches the technological means of primary frequency regulation of power network, is power grid high-quality stable
Operation provides effective technical support；In view of the requirement of primary frequency modulation in operation of power networks is increasingly stringenter, and industrial thermic load
Capacity is also increasing, and the technical characterstic of industrial thermic load group is made full use of to participate in the primary frequency modulation of power grid, will become electricity
The new technological means of net primary frequency modulation has preferable application prospect.
The present invention also provides a kind of control systems that primary frequency regulation of power network is participated in based on industrial thermic load group as shown in Figure 1
The control method of system.
Industry thermic load group provided by the invention participates in the control method of the control system of primary frequency regulation of power network, including step
1~step 4.
Specifically, step 1: primary frequency modulation compensating controller is set according to mains frequency fluctuation deviation and thermic load group's power
Definite value, the load compensation for generating thermic load group participation primary frequency regulation of power network instruct and are sent to fling-cut switch；
Specifically, in the step 1, thermic load group participates in the load compensation instruction of primary frequency regulation of power network according to power grid frequency
Rate fluctuates deviation to be determined as maximum frequency modulation compensation load value or zero；Wherein, maximum frequency modulation compensation load value and thermic load group
Power bracket is correspondingly arranged.
Wherein, power grid real time execution frequency can be acquired by operation of power networks frequency transmitter and be obtained；
Rated frequency setting value, the setting value can be modified according to actual needs, be generally set to the operation of power grid standard in China
Frequency 50Hz.
Step 2: fling-cut switch carries out the switching of primary frequency function according to thermic load group system and operation of power networks demand: when
When primary frequency function is put into, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is sent to thermic load group control
Device；When primary frequency modulation excision, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is automatically zero.
Step 3: thermic load group controller judges whether each thermic load subset meets the condition for participating in primary frequency modulation investment；
If satisfied, then calculating the primary frequency modulation load that each thermic load subset undertakes in distribution thermic load group, while automatic calculating
Thermic load group participates in the time of primary frequency regulation of power network, the automatic excision of time-out.
Specifically, in the step 3, each thermic load subset meets the condition for participating in primary frequency modulation investment are as follows:
Within a preset range, which just may participate in the primary tune of power grid for the load consumption of corresponding thermic load subset
Frequently；Otherwise, the thermic load group controller is configured as the primary frequency modulation instruction that automatic blocking falls the thermic load subset.
Such as: it include n thermic load subset in some thermic load group, the rated consumption power of each thermic load subset is
Qni, andEach thermic load subset consumption set value of the power is Qsi, and
For the hot systems stable operation for guaranteeing each thermic load subset, when the load consumption of thermic load subset be set in it is a certain
(it is typically set to 30%Qni < Qsi≤90%Qni, can be adjusted according to the actual operation) when in range, thermic load
Collection just may participate in the primary frequency modulation of power grid, and otherwise in thermic load group controller, the primary frequency modulation that automatic blocking falls the subset refers to
It enables.
In the step 3, the thermic load group controller is assigned to the thermic load subset for respectively undertaking primary frequency modulation task
Primary frequency modulation instruction are as follows:
Each wastage in bulk or weight thermic load subset consumption set value of the power and undertake all thermic load subsets of primary frequency modulation task
The ratio of set value of the power, then the product instructed with the frequency modulation for undertaking all thermic load subsets of primary frequency modulation task.
In entire thermic load group, since service condition limits, it is negative to certainly exist certain heat that cannot undertake primary frequency modulation
Lotus subset participates in the thermic load subset of primary frequency regulation of power network by each for the primary frequency modulation overall performance for realizing entire thermic load group
From consumption power setting ratio, the primary frequency modulation task of thermic load group is undertaken.
Assuming that there is m (m is more than or equal to 1 integer) each subset that can undertake primary frequency modulation task, Mei Gere in system
It is Qqi that load subset, which undertakes primary frequency modulation instruction,Undertake the total consumed power of m subset of primary frequency modulation task
Setting value is
Thermic load group controller is assigned to the subset primary frequency modulation instruction for respectively undertaking primary frequency modulation task are as follows:
In the step 3, constrained when certain primary frequency regulation of power network actuation time more than default maximum duration, and power grid
When running frequency is not restored to frequency dead band to run, thermic load group controller cuts off the primary frequency modulation of thermic load group's system automatically
Function, state is run before restoring frequency modulation.
The accumulation of heat inertia of thermic load group can flexibly participate in the primary frequency modulation of power grid, but the stable operation of heating system
It is required that limitation, thermic load group does not allow to change system consumption Power operation for a long time, and otherwise the hot property of thermic load group will be sent out
It is raw to change.
Therefore the maximum duration constraint for needing setting thermic load group to participate in primary frequency regulation of power network in the present system (considers power grid one
The time feature of secondary frequency modulation and frequency modulation frequency modulation, the time-constrain are generally set to 3 minutes, can be according to running situation tune
It is whole), when certain primary frequency regulation of power network actuation time is more than the time-constrain and operation of power networks frequency is not restored to frequency dead band
When interior operation, thermic load group controller cuts off the primary frequency function of thermic load group automatically, and state is run before restoring frequency modulation.
Step 4: each thermic load subset is configured the primary frequency modulation load distributed according to thermic load group controller, completes
Corresponding Load Regulation.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. the control system that a kind of industry thermic load group participates in primary frequency regulation of power network characterized by comprising
Primary frequency modulation compensating controller, is configured as: according to mains frequency fluctuation deviation and thermic load group's set value of the power,
Generate the load compensation instruction that thermic load group participates in primary frequency regulation of power network；And
Fling-cut switch is configured as: the switching of primary frequency function is carried out according to thermic load group system and operation of power networks demand:
When primary frequency function investment, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is sent to thermic load group control
Device；When primary frequency modulation excision, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is automatically zero；
The thermic load group controller is configured as: judging whether each thermic load subset meets the item for participating in primary frequency modulation investment
Part；If satisfied, then calculating the primary frequency modulation load that each thermic load subset undertakes in distribution thermic load group, while automatic meter
It calculates the time that thermic load group participates in primary frequency regulation of power network, the automatic excision of time-out；
Each thermic load subset is configured as: the primary frequency modulation load distributed according to thermic load group controller completes respective negative
Lotus is adjusted；
The load compensation instruction that thermic load group participates in primary frequency regulation of power network is generated by primary frequency modulation penalty function F (x), primary frequency modulation
Penalty function F (x) is polygronal function；The load compensation that the thermic load group participates in primary frequency regulation of power network is instructed according to mains frequency
Fluctuation deviation compensates load value or zero to be determined as maximum frequency modulation；Wherein, maximum frequency modulation compensation load value and thermic load group function
Rate range is correspondingly arranged.
2. the control system that a kind of industrial thermic load group as described in claim 1 participates in primary frequency regulation of power network, which is characterized in that
The primary frequency modulation compensating controller, comprising:
Frequency departure generation module, is configured as: according to power grid real time execution frequency compared with rated frequency setting value, generating
Mains frequency fluctuation deviation；And
Primary frequency modulation penalty function F (x) module, is configured as: according to mains frequency fluctuation deviation and thermic load group's power
Setting value generates the load compensation instruction that thermic load group participates in primary frequency regulation of power network.
3. the control system that a kind of industrial thermic load group as described in claim 1 participates in primary frequency regulation of power network, which is characterized in that
Each thermic load subset meets the condition for participating in primary frequency modulation investment are as follows:
Within a preset range, which just may participate in the primary frequency modulation of power grid for the load consumption of corresponding thermic load subset；
Otherwise, the thermic load group controller is configured as the primary frequency modulation instruction that automatic blocking falls the thermic load subset.
4. the control system that a kind of industrial thermic load group as described in claim 1 participates in primary frequency regulation of power network, which is characterized in that
In the thermic load group controller, it is assigned to the primary frequency modulation instruction for the thermic load subset for respectively undertaking primary frequency modulation task
Are as follows:
Each total consumed power thermic load subset consumption set value of the power and undertake all thermic load subsets of primary frequency modulation task
The ratio of setting value, then the product instructed with the frequency modulation for undertaking all thermic load subsets of primary frequency modulation task.
5. the control system that a kind of industrial thermic load group as described in claim 1 participates in primary frequency regulation of power network, which is characterized in that
It is more than default maximum duration constraint when certain primary frequency regulation of power network actuation time, and operation of power networks frequency does not restore dead to frequency
When running in area, the thermic load group controller is configured as cutting off the primary frequency function of thermic load group system automatically, restores
State is run before frequency modulation.
6. a kind of controlling party for the control system for participating in primary frequency regulation of power network based on industrial thermic load group as described in claim 1
Method characterized by comprising
Step 1: primary frequency modulation compensating controller generates heat according to mains frequency fluctuation deviation and thermic load group's set value of the power
The load compensation that load group participates in primary frequency regulation of power network instructs and is sent to fling-cut switch；
Step 2: fling-cut switch carries out the switching of primary frequency function according to thermic load group system and operation of power networks demand: when primary
When frequency modulation function is put into, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is sent to thermic load group controller；When
When primary frequency modulation is cut off, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is automatically zero；
Step 3: thermic load group controller judges whether each thermic load subset meets the condition for participating in primary frequency modulation investment；If full
Foot then calculates the primary frequency modulation load that each thermic load subset undertakes in distribution thermic load group, while automatic calculating heat is negative
Lotus group participates in the time of primary frequency regulation of power network, the automatic excision of time-out；
Step 4: each thermic load subset is configured the primary frequency modulation load distributed according to thermic load group controller, completes corresponding
Load Regulation.
7. industry thermic load group as claimed in claim 6 participates in the control method of the control system of primary frequency regulation of power network, special
Sign is, in the step 1, the load compensation instruction that thermic load group participates in primary frequency regulation of power network is inclined according to mains frequency fluctuation
Difference compensates load value or zero to be determined as maximum frequency modulation；Wherein, maximum frequency modulation compensation load value and thermic load group power bracket
It is correspondingly arranged.
8. industry thermic load group as claimed in claim 6 participates in the control method of the control system of primary frequency regulation of power network, special
Sign is, in the step 3, each thermic load subset meets the condition for participating in primary frequency modulation investment are as follows:
Within a preset range, which just may participate in the primary frequency modulation of power grid for the load consumption of corresponding thermic load subset；
Otherwise, the thermic load group controller is configured as the primary frequency modulation instruction that automatic blocking falls the thermic load subset.
9. industry thermic load group as claimed in claim 6 participates in the control method of the control system of primary frequency regulation of power network, special
Sign is, in the step 3, the thermic load group controller is assigned to the thermic load subset for respectively undertaking primary frequency modulation task
Primary frequency modulation instruction are as follows:
Each total consumed power thermic load subset consumption set value of the power and undertake all thermic load subsets of primary frequency modulation task
The ratio of setting value, then the product instructed with the frequency modulation for undertaking all thermic load subsets of primary frequency modulation task.
10. the industrial thermic load group as described in claim 6 or 9 participates in the control method of the control system of primary frequency regulation of power network,
It is characterized in that, be more than default maximum duration constraint when certain primary frequency regulation of power network actuation time in the step 3, and
When operation of power networks frequency is not restored to frequency dead band to run, thermic load group controller cuts off the primary of thermic load group's system automatically
Frequency modulation function, state is run before restoring frequency modulation.
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| CN108808713B (en) * | 2018-05-04 | 2020-05-22 | 国网内蒙古东部电力有限公司电力科学研究院 | Industrial heat load control system and method for improving new energy power generation absorption capacity |
| CN109611279A (en) * | 2018-11-02 | 2019-04-12 | 华南理工大学 | A kind of off-network type wind generator system and its optimal frequency tracking and controlling method |
| CN110492530A (en) * | 2019-07-26 | 2019-11-22 | 广西电网有限责任公司南宁供电局 | A kind of water cooler participates in the duty control method and device of power grid frequency modulation |
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