CN110119995B - New energy consumption method and system considering peak regulation and section dual constraints - Google Patents

New energy consumption method and system considering peak regulation and section dual constraints Download PDF

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CN110119995B
CN110119995B CN201910466127.5A CN201910466127A CN110119995B CN 110119995 B CN110119995 B CN 110119995B CN 201910466127 A CN201910466127 A CN 201910466127A CN 110119995 B CN110119995 B CN 110119995B
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刘爱梅
于昌海
朱燕芳
吴继平
滕贤亮
张秀丽
涂孟夫
闫磊
李�远
徐利美
冯李军
张小白
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State Grid Shanxi Electric Power Co Ltd
Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
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Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
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Abstract

The invention discloses a new energy consumption method considering peak regulation and section dual constraints, which comprises the steps of dividing a peak regulation operation interval according to a threshold value of a rotating reserve capacity of a power system; determining the maximum consumption of the power system to the new energy according to the peak regulation operation interval; dividing the section absorption capacity based on the section safety and stability limit, the section safety margin and the section actual output; and periodically monitoring the peak regulation operation interval and the section consumption capacity state, distributing the maximum consumption to each new energy station, and determining the active target instruction of each new energy station. A corresponding system is also disclosed. According to the method, the system operation interval is refined according to the power system rotation standby margin, the section safety and stability margin and the actual operation level of the power grid, an active power distribution algorithm of the new energy station under each operation scene is provided, peak regulation capacity and channel capacity are utilized maximally on the premise that the system is guaranteed to operate safely and stably, and efficient utilization of new energy is achieved.

Description

New energy consumption method and system considering peak regulation and section dual constraints
Technical Field
The invention relates to a new energy consumption method and system considering peak regulation and section dual constraints, and belongs to the field of automatic control of power systems.
Background
In recent years, new energy development is actively promoted in China, large-scale new energy development plans are formulated in each province, the total installed amount of new energy in China is the first in the world by 2018, and the rapid increase of the total consumed amount of new energy is realized. With the large-scale centralized development of new energy and the continuous increase of installed capacity, under the condition that the electricity consumption of the current society is increased and slowed, the problem of new energy consumption is increasingly highlighted, and the centralized expression is that electricity is delivered and meets the phenomena of 'power transmission bottleneck' of a channel and 'peak regulation and electricity abandon' of a power grid when the peak regulation capacity is insufficient.
Disclosure of Invention
The invention provides a new energy consumption method and system considering peak shaving and section dual constraints, and solves the problem of new energy consumption of the existing power grid.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the new energy consumption method considering peak regulation and section dual constraints comprises the following steps,
dividing peak-shaving operation intervals according to a threshold value of the rotating reserve capacity of the power system;
determining the maximum consumption of the power system to the new energy according to the peak regulation operation interval;
dividing the section absorption capacity based on the section safety and stability limit, the section safety margin and the section actual output;
and periodically monitoring the peak regulation operation interval and the section consumption capacity state, distributing the maximum consumption to each new energy station, and determining the active target instruction of each new energy station.
The peak-shaving operation interval is divided into a formula,
a safety interval:
Figure GDA0003706729790000021
early warning interval:
Figure GDA0003706729790000022
a restricted interval:
Figure GDA0003706729790000023
wherein, P reg The reserve capacity is currently actually rotated for the power system,
Figure GDA0003706729790000024
respectively, a lower limit and an upper limit of the threshold value of the spinning reserve capacity.
Figure GDA0003706729790000025
The calculation formula of (2) is as follows:
Figure GDA0003706729790000026
Figure GDA0003706729790000027
wherein the content of the first and second substances,
Figure GDA0003706729790000028
is the peak load of the power system, lambda is the fixed proportion of the peak load of the power system, n' is the number of cycles, delta P avg And averaging the active increments of the new energy station in each period.
The maximum consumption is calculated by the formula,
when the peak regulation operation interval is an early warning/limited interval,
Figure GDA0003706729790000029
when the peak regulation operation interval is a safety interval,
Figure GDA00037067297900000210
wherein, P base For maximum consumption, n is the number of new energy stations under the section, C i Is the rated capacity, P, of the new energy station i geni The actual output of the new energy station i is obtained.
The section absorption capacity is divided into the following formulas,
sufficient digestion capacity: s gen ≤S max (1-S sfmarg )
The digestion capacity is normal: s max (1-S sfmarg )＜S gen ＜S max (1-S marg )
Consumption capacity early warning: s max ＞S gen ≥S max (1-S marg )
Insufficient digestion capacity: s gen ≥S max
Wherein S is gen Is the actual force of the cross section, S max For safe and stable quota of section, S marg For safety margin of cross section, S sfmarg In order to completely absorb the threshold value for the cross section,
Figure GDA0003706729790000031
n is the number of new energy stations under the section, delta P max,i The maximum value of the active increment in the period of the new energy station is obtained.
The process of determining the active target command of each new energy station is that,
the period of this cycle
Figure GDA0003706729790000032
And S gen ≤S max (1-S sfmarg ) The method comprises the following steps: directly determining the active target of the new energy stationOrder;
the period of this cycle
Figure GDA0003706729790000033
Or S gen ≥S max The method comprises the following steps: distributing the maximum consumption to each new energy station, and then determining an active target instruction of each new energy station;
in other cases: if it was in the previous cycle
Figure GDA0003706729790000034
And S gen ≤S max (1-S sfmarg ) Directly determining an active target instruction of the new energy station in the period; if the last cycle
Figure GDA0003706729790000035
Or S gen ≥S max Then, the maximum consumption is firstly distributed to each new energy station, and then the active target instruction of each new energy station is determined.
Wherein, P reg The reserve capacity is currently actually rotated for the power system,
Figure GDA0003706729790000036
lower and upper limits, S, respectively, of the threshold value of reserve capacity for rotation gen For the actual force exerted on the cross-section, S max For the safe and stable quota of the section S sfmarg The threshold value is completely taken up for the section.
The process of the maximum consumption allocation is that,
distributing the adjustment quantity distributed to each new energy station according to the installed capacity proportion
Figure GDA0003706729790000037
C i Is the rated capacity, P, of the new energy station i base Is the maximum consumption.
The process of determining the active target command of each new energy station comprises the following steps,
S gen ≤S max (1-S sfmarg ) The method comprises the following steps:
if it is
Figure GDA0003706729790000038
The active target instruction P of the new energy station desi ＝C i ；
If it is
Figure GDA0003706729790000039
Or
Figure GDA00037067297900000310
The active target instruction P of the new energy station desi ＝P geni +ΔP regi ；
Wherein, P geni Is the actual output of the new energy station i, delta P regi The adjustment quantity S allocated to the new energy station i for the maximum consumption sfmarg For complete absorption of threshold value, C, of the cross-section i The rated capacity of the new energy station i;
S gen ≥S max the method comprises the following steps:
active target instruction P of new energy station desi ＝P geni +min(ΔP regi ,ΔP chgi )；
Wherein, Δ P chgi For the correction of the new energy station i,
Figure GDA0003706729790000041
ΔS adj ＝S gen -S max (1-S marg ) The section correction value is obtained;
S max ＞S gen ≥S max (1-S marg ) The method comprises the following steps:
active target instruction P of new energy station desi ＝P geni +min(ΔP regi ,0)；
S max (1-S sfmarg )＜S gen ＜S max (1-S marg ) The method comprises the following steps:
active target instruction P of new energy station desi ＝P geni +min(ΔP regi ,ΔP chgi )；
Wherein the content of the first and second substances,
Figure GDA0003706729790000042
S reg ＝S max (1-S marg )-S gen the hair space is increased for the cross section when the cross section is more limited.
And if the maximum consumption of part of the new energy field stations is limited by the transmission section, the remaining maximum consumption is transferred to the new energy field stations under other sections.
A new energy consumption system considering peak shaving and profile dual constraints, comprising,
the peak regulation operation interval division module: dividing peak-shaving operation intervals according to a threshold value of the rotating reserve capacity of the power system;
a maximum consumption calculation module: determining the maximum consumption of the power system to the new energy according to the peak regulation operation interval;
a section absorption capacity dividing module: dividing the section absorption capacity based on the section safety and stability limit, the section safety margin and the section actual output;
an active target instruction determining module: and periodically monitoring the peak regulation operation interval and the section consumption capacity state, distributing the maximum consumption to each new energy station, and determining the active target instruction of each new energy station.
The invention achieves the following beneficial effects: according to the method, the system operation interval is refined according to the power system rotation standby margin, the section safety and stability margin and the actual operation level of the power grid, an active power distribution algorithm of the new energy station under each operation scene is provided, peak regulation capacity and channel capacity are utilized maximally on the premise that the system is guaranteed to operate safely and stably, and efficient utilization of new energy is achieved.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a plot of peak shaver operating zone divisions;
fig. 3 is a sectional absorption capacity division diagram.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the new energy consumption method considering peak shaving and section dual constraints includes the following steps:
step 1, determining a threshold value of the rotating reserve capacity of the power system, and dividing a peak-shaving operation interval into a safety interval, an early warning interval and a limited interval according to the threshold value of the rotating reserve capacity of the power system.
The threshold value of the rotating reserve capacity of the power system comprises a lower limit and an upper limit; the lower limit is determined by considering uncertainty factors such as power system load prediction deviation, new energy output prediction deviation, unit fault shutdown and the like, and generally calculated according to a fixed proportion (7% -10%) of system peak load, and the specific formula is as follows:
Figure GDA0003706729790000051
the calculation formula of (2) is as follows:
Figure GDA0003706729790000052
wherein, the first and the second end of the pipe are connected with each other,
Figure GDA0003706729790000053
to rotate the lower limit of the reserve capacity threshold,
Figure GDA0003706729790000054
is the peak load of the power system, and the lambda is the fixed proportion (7-10%) of the peak load of the power system;
the upper limit is calculated as follows:
Figure GDA0003706729790000055
wherein the content of the first and second substances,
Figure GDA0003706729790000061
for the upper limit of the threshold value of reserve capacity for rotation, Δ P avg The average value of active increment of the new energy station in each period can be obtained through statistics according to historical operation data, n 'is the number of periods, and is not suitable to be too large or too small, wherein too small results in frequent switching of control modes of the new energy station, severe fluctuation of active output of regional new energy is caused, too large results in too large upper limit value parameter of rotary reserve capacity, peak regulation capacity cannot be fully utilized, and generally n' is more than or equal to 2 and less than or equal to 5.
As shown in fig. 2, the peak shaving operation interval is specifically divided as follows:
a safety interval:
Figure GDA0003706729790000062
early warning interval:
Figure GDA0003706729790000063
restricted interval:
Figure GDA0003706729790000064
wherein, P reg Reserve capacity is currently actually rotated for the power system.
And 2, determining the maximum consumption of the new energy by the power system according to the peak regulation operation interval.
The maximum consumption is calculated as follows:
when the peak regulation operation interval is an early warning/limited interval,
Figure GDA0003706729790000065
when the peak regulation operation interval is a safety interval, the representation system is sufficient in reserve, and in order to fully utilize the peak regulation capacity, the new energy can generate electricity in a freely-absorbed mode under the condition of not considering the safety constraint of the section,
Figure GDA0003706729790000066
wherein, P base For maximum consumption, n is the number of new energy stations under the section, C i For new energy stationi rated capacity, P geni The actual output of the new energy station i is obtained.
And 3, dividing the section absorption capacity based on the section safety and stability limit, the section safety margin and the section actual output.
The method comprises the steps of calculating a section consumable space based on section safety and stability limits, section safety margins and section actual output, determining a section complete-consumption threshold value by combining the maximum value of active increment in a new energy station period under a section, and dividing the section consumption capacity into sufficient consumption capacity, normal consumption capacity, consumption capacity early warning and insufficient consumption capacity according to the actual output, the safety margins and the complete-consumption threshold value of the current section.
Space S can be absorbed by section reg ＝S max (1-S marg )-S gen (ii) a Wherein S is gen For the actual force exerted on the cross-section, S max For safe and stable quota of section, S marg A section safety margin is obtained;
when the actual force of the fracture surface meets the requirement
Figure GDA0003706729790000071
In time, the current actual output force of the section is far lower than the section limit, the section absorption capacity is sufficient, and the section completely absorbs the threshold value
Figure GDA0003706729790000072
Wherein, Δ P max,i The maximum value of the active increment in the period of the new energy station is obtained.
As shown in fig. 3, the section absorption capacity is divided as follows:
sufficient digestion capacity: s gen ≤S max (1-S sfmarg )
The digestion capacity is normal: s max (1-S sfmarg )＜S gen ＜S max (1-S marg )
Consumption capacity early warning: s. the max ＞S gen ≥S max (1-S marg )
Insufficient digestion capacity: s. the gen ≥S max 。
And 4, periodically monitoring the peak regulation operation interval and the section consumption capacity state, distributing the maximum consumption to each new energy station, and determining the active target instruction of each new energy station.
The specific process is as follows:
1) the period of this cycle
Figure GDA0003706729790000073
And S gen ≤S max (1-S sfmarg ) The method comprises the following steps: the active target command of the new energy station is directly determined.
2) The period of this cycle
Figure GDA0003706729790000074
Or S gen ≥S max The method comprises the following steps: the maximum consumption is distributed to each new energy station, and then an active target instruction of each new energy station is determined.
Maximum consumption allocation process: distributing the adjustment quantity distributed to each new energy station according to the installed capacity proportion
Figure GDA0003706729790000075
3) In other cases: if it was in the previous cycle
Figure GDA0003706729790000081
And S gen ≤S max (1-S sfmarg ) Directly determining an active target instruction of the new energy station in the period; if it was in the previous cycle
Figure GDA0003706729790000082
Or S gen ≥S max Then, the maximum consumption is firstly distributed to each new energy station, and then the active target instruction of each new energy station is determined.
The process of determining the active target instruction of each new energy station is as follows:
A)S gen ≤S max (1-S sfmarg ) When the fracture surface is in use, the absorption capacity of the fracture surface is sufficient;
if it is
Figure GDA0003706729790000083
Namely, the peak regulation operation interval is a safety interval, the active target instruction P of the new energy station desi ＝C i The new energy station is switched to a free power generation mode with a target instruction of installed capacity; if it is
Figure GDA0003706729790000084
Or
Figure GDA0003706729790000085
Namely, if the peak regulation operation interval is an early warning interval or a limited interval, the active target instruction P of the new energy station desi ＝P geni +ΔP regi (ii) a Wherein, P geni Is the actual output of the new energy station i, delta P regi And distributing the adjustment quantity to the new energy station i for the maximum consumption, namely the peak shaving power generation index.
B)S gen ≥S max When the section absorption capacity is insufficient, the section correction quantity delta S is represented adj ＝S gen -S max (1-S marg ) Carrying out weighted average distribution among all the new energy stations according to the actual output proportion, wherein the correction value of the new energy stations is
Figure GDA0003706729790000086
Active target instruction P of new energy station desi ＝P geni +min(ΔP regi ,ΔP chgi ) And the control mode of the new energy station under the section is an automatic power generation mode based on the actual output superposition regulating variable.
C)S max ＞S gen ≥S max (1-S marg ) When the section is overloaded, the new energy station under the section needs to maintain the current output unchanged, the regulating quantity is 0, and the active target instruction P of the new energy station desi ＝P geni +min(ΔP regi ,0)。
D)S max (1-S sfmarg )＜S gen ＜S max (1-S marg ) When the section is in normal state, the peak-load power generation index is distributedThe cross section is possibly out of limit and needs to be verified, and the specific method comprises the following steps: according to the peak regulation power generation index delta P regi Calculating total target output of new energy station under section
Figure GDA0003706729790000087
When S is tot ＞S max Then, this distribution may cause the cross section to be out of limit, and the space S should be increased according to the cross section reg ＝S max (1-S marg )-S gen The power distribution is carried out again, and the distribution quantity of each station is
Figure GDA0003706729790000088
Active target instruction P of new energy station desi ＝P geni +min(ΔP regi ,ΔP chgi )。
And 5, if the maximum consumption of part of the new energy stations is limited by the transmission section, transferring the remaining maximum consumption to the new energy stations under other sections.
The specific process is as follows:
a1) calculating the remaining maximum consumption
Figure GDA0003706729790000091
a2) Screening new energy stations meeting the conditions for secondary distribution, wherein the section of the new energy station has an expansion space, and the actual output of the new energy station is smaller than the maximum adjusting capacity of the new energy station;
a3) carrying out weighted average distribution on the residual maximum consumption of each new energy station according to the installed capacity proportion, and obtaining an active target instruction by adopting the method in the step 4;
a4) and (5) repeating the step until the residual maximum consumption is a smaller value (the smaller value is a set threshold value) or the section hair-increasing space is maximally utilized.
According to the method, the system operation interval is refined according to the power system rotation standby margin, the section safety and stability margin and the actual operation level of the power grid, an active power distribution algorithm of the new energy station under each operation scene is provided, peak regulation capacity and channel capacity are utilized to the maximum extent on the premise that the system is guaranteed to operate safely and stably, and efficient utilization of new energy is achieved.
A new energy consumption system considering peak shaving and profile dual constraints, comprising,
peak regulation operation interval division module: and dividing the peak-shaving operation interval according to the threshold value of the rotating reserve capacity of the power system.
A maximum consumption calculation module: and determining the maximum consumption of the power system to the new energy according to the peak regulation operation interval.
A section absorption capacity dividing module: and dividing the section absorption capacity based on the section safety and stability limit, the section safety margin and the section actual output.
An active target instruction determining module: and periodically monitoring the peak regulation operation interval and the section consumption capacity state, distributing the maximum consumption to each new energy station, and determining the active target instruction of each new energy station.
A computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computing device, cause the computing device to perform a new energy consumption method that accounts for peak shaver and profile dual constraints.
A computing device comprising one or more processors, memory, and one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing a new energy consumption method that accounts for peak shaver and profile double constraints.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention are included in the scope of the claims of the present invention as filed.

Claims (7)

1. The new energy consumption method considering peak regulation and section dual constraints is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
dividing peak-shaving operation intervals according to a threshold value of the rotating reserve capacity of the power system; the peak regulation operation interval is divided into the following formulas, namely, a safety interval:
Figure FDA0003706729780000011
early warning interval:
Figure FDA0003706729780000012
restricted interval:
Figure FDA0003706729780000013
P reg the reserve capacity is currently actually rotated for the power system,
Figure FDA0003706729780000014
respectively a lower limit and an upper limit of a threshold value of the rotating reserve capacity;
determining the maximum consumption of the power system to the new energy under the peak regulation constraint according to the peak regulation operation interval;
dividing the section absorption capacity based on the section safety and stability limit, the section safety margin and the section actual output; wherein, the section absorption capacity is divided into the following formulas: s gen ≤S max (1-S sfmarg ) And the digestion capacity is normal: s max (1-S sfmarg )＜S gen ＜S max (1-S marg ) And consumption capacity early warning: s max ＞S gen ≥S max (1-S marg ) Insufficient digestion capacity: s gen ≥S max ，S gen For the actual force exerted on the cross-section, S max For the safe and stable quota of the section S marg For safety margin of cross section, S sfmarg In order to completely absorb the threshold value for the cross section,
Figure FDA0003706729780000015
n is the number of new energy stations under the section, delta P max,i The maximum value of the active increment in the period of the new energy station is obtained;
periodically monitoring the peak regulation operation interval and the section consumption capacity state, distributing the maximum consumption to each new energy station, and determining the active target instruction of each new energy station, wherein the process comprises the following steps:
the period of this cycle
Figure FDA0003706729780000016
And S gen ≤S max (1-S sfmarg ) The method comprises the following steps: directly determining an active target instruction of the new energy station; the period of this cycle
Figure FDA0003706729780000017
Or S gen ≥S max The method comprises the following steps: distributing the maximum consumption to each new energy station, and then determining an active target instruction of each new energy station; in other cases: if it was in the previous cycle
Figure FDA0003706729780000018
And S gen ≤S max (1-S sfmarg ) Directly determining an active target instruction of the new energy station in the period; if it was in the previous cycle
Figure FDA0003706729780000019
Or S gen ≥S max Then, the maximum consumption is firstly distributed to each new energy station, and then the active target instruction of each new energy station is determined.
2. The new energy consumption method considering peak shaver and profile dual constraints as set forth in claim 1, wherein:
Figure FDA0003706729780000021
the calculation formula of (2) is as follows:
Figure FDA0003706729780000022
Figure FDA0003706729780000023
wherein the content of the first and second substances,
Figure FDA0003706729780000024
is the peak load of the power system, lambda is the fixed proportion of the peak load of the power system, n' is the number of cycles, delta P avg And the average value of the active increment in each period of the new energy station.
3. The new energy consumption method considering peak shaver and profile dual constraints as set forth in claim 1, wherein: the maximum consumption is calculated by the formula,
when the peak regulation operation interval is an early warning/limited interval,
Figure FDA0003706729780000025
when the peak regulation operation interval is a safety interval,
Figure FDA0003706729780000026
wherein, P base For maximum consumption, n is the number of new energy stations under the section, C i Is the rated capacity, P, of the new energy station i geni The actual output of the new energy station i is obtained.
4. The new energy consumption method considering peak shaver and profile dual constraints as set forth in claim 1, wherein: the process of the maximum consumption allocation is that,
distributing the new energy stations according to the installed capacity proportion, and distributing the adjustment quantity distributed by each new energy station
Figure FDA0003706729780000027
C i Is the rated capacity, P, of the new energy station i base Is the maximum consumption.
5. The new energy consumption method considering peak shaver and profile dual constraints as set forth in claim 1, wherein: the process of determining the active target command of each new energy station comprises the following steps,
S gen ≤S max (1-S sfmarg ) The method comprises the following steps:
if it is
Figure FDA0003706729780000028
The active target instruction P of the new energy station desi ＝C i ；
If it is
Figure FDA0003706729780000029
Or
Figure FDA00037067297800000210
The active target instruction P of the new energy station desi ＝P geni +ΔP regi ；
Wherein, P geni Is the actual output of the new energy station i, delta P regi The adjustment quantity S allocated to the new energy station i for the maximum consumption sfmarg For complete absorption of threshold value, C, of the cross-section i The rated capacity of the new energy station i;
S gen ≥S max the method comprises the following steps:
active target instruction P of new energy station desi ＝P geni +min(ΔP regi ,ΔP chgi )；
Wherein, Δ P chgi For the correction of the new energy station i,
Figure FDA0003706729780000031
ΔS adj ＝S gen -S max (1-S marg ) The section correction value is obtained;
S max ＞S gen ≥S max (1-S marg ) The method comprises the following steps:
active target instruction P of new energy station desi ＝P geni +min(ΔP regi ,0)；
S max (1-S sfmarg )＜S gen ＜S max (1-S marg ) The method comprises the following steps:
active target instruction P of new energy station desi ＝P geni +min(ΔP regi ,ΔP chgi )；
Wherein the content of the first and second substances,
Figure FDA0003706729780000032
S reg ＝S max (1-S marg )-S gen the hair space is increased for the cross section when the cross section is more limited.
6. The new energy consumption method considering peak shaver and profile dual constraints as set forth in claim 1, wherein: and if the maximum consumption of part of the new energy stations is limited by the transmission section, the rest maximum consumption is transferred to the new energy stations under other sections.
7. Consider peak regulation and section dual constraint's new forms of energy consumption system, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
peak regulation operation interval division module: dividing peak-shaving operation intervals according to a threshold value of the rotating reserve capacity of the power system; the peak regulation operation interval is divided into the following formulas, namely, a safety interval:
Figure FDA0003706729780000033
early warning interval:
Figure FDA0003706729780000034
restricted interval:
Figure FDA0003706729780000035
P reg the reserve capacity is currently actually rotated for the power system,
Figure FDA0003706729780000036
respectively the lower limit and the upper limit of the threshold value of the rotating reserve capacity;
a maximum consumption calculation module: determining the maximum consumption of the power system to the new energy according to the peak regulation operation interval;
a section absorption capacity dividing module: dividing the section absorption capacity based on the section safety and stability limit, the section safety margin and the section actual output; wherein, the section absorption capacity is divided into the following formulas: s gen ≤S max (1-S sfmarg ) And the digestion capacity is normal: s max (1-S sfmarg )＜S gen ＜S max (1-S marg ) And consumption capacity early warning: s max ＞S gen ≥S max (1-S marg ) Insufficient digestion capacity: s gen ≥S max ，S gen For the actual force exerted on the cross-section, S max For safe and stable quota of section, S marg For safety margin of cross section, S sfmarg In order to completely absorb the threshold value for the cross section,
Figure FDA0003706729780000041
n is the number of new energy stations under the section, delta P max,i The maximum value of the active increment in the period of the new energy station is obtained;
an active target instruction determining module: periodically monitoring the peak regulation operation interval and the section consumption capacity state, distributing the maximum consumption to each new energy station, and determining the active target instruction of each new energy station, wherein the process comprises the following steps:
the period of this cycle
Figure FDA0003706729780000042
And S gen ≤S max (1-S sfmarg ) When the method is used: directly determining an active target instruction of the new energy station; the period of this cycle
Figure FDA0003706729780000043
Or S gen ≥S max The method comprises the following steps: distributing the maximum consumption to each new energy station, and then determining an active target instruction of each new energy station; in other cases: if it was in the previous cycle
Figure FDA0003706729780000044
And S gen ≤S max (1-S sfmarg ) Directly determining an active target instruction of the new energy station in the period; if it was in the previous cycle
Figure FDA0003706729780000045
Or S gen ≥S max Then, the maximum consumption is firstly distributed to each new energy station, and then the active target instruction of each new energy station is determined.
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