CN102738835A - Wind-fire-water co-scheduling method on basis of multi-agent system - Google Patents

Wind-fire-water co-scheduling method on basis of multi-agent system Download PDF

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CN102738835A
CN102738835A CN2012102470553A CN201210247055A CN102738835A CN 102738835 A CN102738835 A CN 102738835A CN 2012102470553 A CN2012102470553 A CN 2012102470553A CN 201210247055 A CN201210247055 A CN 201210247055A CN 102738835 A CN102738835 A CN 102738835A
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power system
electric power
agent
wind
unit
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CN102738835B (en
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王灵梅
韩西贵
刘宏斌
郭红龙
武卫红
郭东杰
刘丽娟
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
Shanxi University
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ENGINEERING COLLEGE OF SHANXI UNIVERSITY
Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
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Abstract

The invention relates to a power scheduling operation method, in particular to a wind-fire-water co-scheduling method on the basis of a multi-agent system. The method solves the problem that a conventional power scheduling operation method cannot meet the requirement on the large-scale wind power grid-connected operation. The wind-fire-water co-scheduling method on the basis of the multi-agent system is implemented by adopting the following steps of: 1, constructing a wind-fire-water co-scheduling model on the basis of the multi-agent in a scheduling Agent; 2, acquiring predicted data of a load demand in a power system by a load Agent in the power system; 3, sending acquired basic data and real-time data into the wind-fire-water co-scheduling model on the basis of the multi-agent by each thermal power Agent; and 4, issuing and executing a scheduling command by each thermal power Agent and a hydroelectric Agent. The wind-fire-water co-scheduling method is suitable for large-scale wind power grid-connected operation scheduling.

Description

" wind-fire-water " coordinated dispatching method based on multiple agent
Technical field
The present invention relates to the power scheduling operation method, specifically is a kind of " wind-fire-water " coordinated dispatching method based on multiple agent.
Background technology
Wind energy is a kind of contain abundant and clean regenerative resource.Along with the more and more maturation of wind generating technology, wind power generation also more and more receives the attention of the Chinese government.By 2011, China's wind-powered electricity generation accumulative total installed capacity broke through 6544.15 ten thousand kilowatts, surpasses the U.S. first, leaps to the first in the world.
The power supply architecture of China is main with thermoelectricity and water power mainly.The restriction of conditions such as fired power generating unit receives that boiler, steam turbine minimum technology are exerted oneself, the adjusting range of fired power generating unit is less, and equipment such as boiler, steam turbine receives the restriction of alternate stress, and it is slower to regulate the speed.Thermoelectric exerting oneself in the heat supply phase of unit is obstructed, and the peak of system becomes littler, and the difficulty of peak regulation becomes bigger.Pollutant that gives off during thermal power unit operation such as nitrogen oxide, oxysulfide also can cause environmental pollution.Hydropower Unit has adjusting range big, regulate the speed fast, operating cost advantage low, low in the pollution of the environment.
Wind power generation has intermittence, fluctuation, randomicity characteristics.Along with the increase of wind-powered electricity generation installation scale, being incorporated into the power networks steadily, safely of wind-powered electricity generation becomes the key issue of being badly in need of solution, and conventional electric power management and running method can't satisfy the demand that large-scale wind power is incorporated into the power networks.Because being incorporated into the power networks, large-scale wind power needs the spinning reserve capacity in the rational management electric power system; In order to bear the peak regulation task of wind-powered electricity generation; But because the anti-peak regulation characteristic of wind-powered electricity generation unit output; Increased the difficulty of peak regulation, conventional electric power management and running method is difficult to solve the fluctuation of the active power and the frequency of electrical network, when serious even can threaten the safety of whole electric power system.
Therefore, be badly in need of a kind of new dispatching method of invention, this method can take into full account in the electric power system power producing characteristics of various power supplys and dispatch, and makes power system security, economy, environmental protection operation.
Summary of the invention
The present invention provides a kind of " wind-fire-water " coordinated dispatching method based on multiple agent in order to solve the problem that conventional electric power management and running method can't satisfy the demand that large-scale wind power is incorporated into the power networks.
The present invention adopts following technical scheme to realize: based on " wind-fire-water " coordinated dispatching method of multiple agent, this method is to adopt following steps to realize: 1) in scheduling Agent, make up " wind-fire-water " the cooperative scheduling model based on multiple agent; 2) by the prediction data of workload demand in the collection of the load Agent in the electric power system electric power system, the prediction data with the workload demand that collects is sent to the scheduling Agent in the electric power system simultaneously; After scheduling Agent received the prediction data of workload demand, each thermoelectricity Agent in electric power system, water power Agent, wind-powered electricity generation Agent sent the request of image data; After each thermoelectricity Agent receives the request of image data, gather the master data and the real time data of each fired power generating unit in the electric power system; After each water power Agent receives the request of image data, gather the master data and the real time data of each Hydropower Unit in the electric power system; After each wind-powered electricity generation Agent receives the request of image data, gather the real time data and the prediction data of each wind-powered electricity generation unit in the electric power system; 3) by each thermoelectricity Agent master data that collects and real time data are sent in " wind-fire-water " the cooperative scheduling model based on multiple agent; By each water power Agent master data that collects and real time data are sent in " wind-fire-water " the cooperative scheduling model based on multiple agent; By each wind-powered electricity generation Agent real time data that collects and prediction data are sent in " wind-fire-water " the cooperative scheduling model based on multiple agent; " wind-fire-water " cooperative scheduling model based on multiple agent decomposes the data that receive, and utilizes the MOPSO algorithm to solve exerting oneself of the exerting oneself of each fired power generating unit in the electric power system, each Hydropower Unit respectively; 4) will find the solution the exerting oneself of each fired power generating unit that obtains by scheduling Agent and be sent to each thermoelectricity Agent in the electric power system; To find the solution the exerting oneself of each Hydropower Unit that obtains by scheduling Agent and be sent to the water power Agent in the electric power system; Each thermoelectricity Agent, water power Agent issue and the operation dispatching order according to exerting oneself of receiving.
Said step 1) may further comprise the steps: the frame model that 1.1) makes up " wind-fire-water " cooperative scheduling model; Said frame model comprises several thermoelectricitys Agent, several water power Agent, several wind-powered electricity generations Agent, thermoelectricity Management Agent, water power Management Agent, wind-powered electricity generation Management Agent, scheduling Agent and load Agent; Wherein, each thermoelectricity Agent connects scheduling Agent through the thermoelectricity Management Agent; Each water power Agent connects scheduling Agent through the water power Management Agent; Each wind-powered electricity generation Agent connects scheduling Agent through the wind-powered electricity generation Management Agent; Load Agent connects scheduling Agent; 1.2) structure " wind-fire-water " cooperative scheduling Model Optimization target function; The optimization aim of said optimization aim function comprises: the power-balance problem of electric power system; The economy problems of power system operation; The emission pollution problem of each fired power generating unit in the electric power system; 1.3) confirm the spinning reserve of each fired power generating unit in the electric power system; 1.4) make up the constraints of " wind-fire-water " cooperative scheduling model; Said constraints comprises: the constraint of the positive and negative spinning reserve of electric power system; The constraint of exerting oneself of each fired power generating unit, the constraint of regulations speed in the electric power system; The constraint of the constraint of the constraint of exerting oneself of each Hydropower Unit, regulations speed, storage capacity, the constraint of letdown flow in the electric power system; The constraint of the wind-powered electricity generation quality of power supply of each wind-powered electricity generation unit in the electric power system.
Said step 2) in, the master data of each fired power generating unit comprises: the minimax of each fired power generating unit exert oneself, the make progress emissions data of downward regulations speed, operating cost data, pollutant; The real time data of each fired power generating unit comprises: each fired power generating unit go out force data in real time; The master data of each Hydropower Unit comprises: the minimax of each Hydropower Unit exert oneself, make progress downward regulations speed, minimax storage capacity, minimax letdown flow, operating cost data; The real time data of each Hydropower Unit comprises: each Hydropower Unit go out force data in real time; The real time data of each wind-powered electricity generation unit comprises: the data of the quality of power supply of each wind energy turbine set; The prediction data of each wind-powered electricity generation unit comprises: the prediction data of each wind energy turbine set; The prediction data of workload demand comprises: to the prediction data of load active power demand.
In the said step 3), the MOPSO algorithm may further comprise the steps: 3.1) initialization population, and the scale M of definite population and total iterations N; 3.2) calculate the pairing object vector of each particle in the population, and upgrade the optimal solution pbest of each particle; During to iterations iterations≤n, the noninferior solution in the population is joined in the outside document, and safeguard outside document; To iterations iterations>during n, judge that whether fitness1 is less than ε; If greater than ε, think then that this is separated and be not noninferior solution; If less than ε, judge then whether fitness2 and fitness3 that this is separated arrange separating in the outside document; If domination is then directly separated this outside document of adding and is deleted ridden separating in the document; If this is separated by outside document domination, then this is separated and is not added outside document; If this separate with document in separate mutually and do not arrange, then this is separated the outside document of direct adding; 3.3) safeguard outside document, and from outside document, choose one and separate as globally optimal solution gbest; 3.4) upgrade each particle's velocity and position; 3.5) judge that whether iterations iterations is less than N; If iterations iterations is less than N, iterations iterations+1 then, and jump into step 3.2) circulation; If iterations iterations is greater than N, then loop ends; 3.6) from outside document, choose globally optimal solution gbest, and return globally optimal solution gbest.
Said step 1.2) in, the power-balance problem of electric power system obtains through following formula:
Figure 465124DEST_PATH_IMAGE002
(1);
In the formula (1),
Figure 837199DEST_PATH_IMAGE004
is the summation of exerting oneself of each wind-powered electricity generation unit in the electric power system; is the summation of exerting oneself of each fired power generating unit in the electric power system;
Figure 774379DEST_PATH_IMAGE008
is the summation of exerting oneself of each Hydropower Unit in the electric power system;
Figure 676476DEST_PATH_IMAGE010
is the active power of workload demand in the electric power system;
Figure 157136DEST_PATH_IMAGE012
is the station service power consumption rate of transmission losses in the electric power system and each power plant;
The economy problems of power system operation obtains through following formula:
Figure 262627DEST_PATH_IMAGE014
(2);
In the formula (2), is the operating cost of each Hydropower Unit in the electric power system;
Figure 876328DEST_PATH_IMAGE018
is the operating cost of each fired power generating unit in the electric power system;
The emission pollution problem of each fired power generating unit obtains through following formula in the electric power system:
(3);
In the formula (3),
Figure 386255DEST_PATH_IMAGE022
is the summation that discharges pollutants of each fired power generating unit in the electric power system.
Through type (2) and formula (3) can make the multiple electricity of unit that operating cost is lower in the electric power system, pollutant emission is less, and the unit that operating cost is higher, pollutant emission is more generates electricity less; Guarantee the requirement of the economy and the feature of environmental protection of power system operation thus.
Said step 1.3) in, definite principle of the spinning reserve of each fired power generating unit is following in the electric power system:
If fired power generating unit is coal group of motors and the annual peak regulation of participating in, to single-machine capacity 300MW and above newly-built unit, will rotate up subsequent use confirming as about 20%, will be rotated down and subsequent usely confirm as 25%; Production time unit early to single-machine capacity 200MW-600MW will rotate up subsequent use confirming as about 15%, will be rotated down subsequent use confirming as about 20%; To single-machine capacity 135MW and following unit, will rotate up and subsequent usely confirm as 10%, will be rotated down and subsequent usely confirm as 15%;
If fired power generating unit is a thermoelectric unit and at heating period, to single-machine capacity 135MW and following unit, will exert oneself is obstructed confirms as 10%, will rotate up and subsequent usely confirm as 5%, will be rotated down and subsequent usely confirm as 10%; To single-machine capacity 200MW and above unit, will exert oneself is obstructed confirms as 15%-20%, will rotate up subsequent usely to confirm as 10%, will be rotated down subsequent usely to confirm as 10%; If fired power generating unit is a thermoelectric unit and at non-heating period, to single-machine capacity 135MW and following unit, will rotate up and subsequent usely confirm as 10%, will be rotated down and subsequent usely confirm as 15%; To the unit of single-machine capacity 200MW-300MW, will rotate up and subsequent usely confirm as 15%, will be rotated down and subsequent usely confirm as 20%.
Said step 1.4) in, the constraint of the positive and negative spinning reserve of electric power system obtains through following formula:
Figure 843781DEST_PATH_IMAGE024
(4);
In the formula (4),
Figure 392574DEST_PATH_IMAGE026
for each Hydropower Unit in the t electric power system constantly upwards, be rotated down subsequent use capacity summation;
Figure 293665DEST_PATH_IMAGE028
for each fired power generating unit in the t electric power system constantly upwards, be rotated down subsequent use capacity summation;
Figure 560698DEST_PATH_IMAGE030
predicted value for loading in the electric power system;
Figure 821915DEST_PATH_IMAGE032
is the prediction data of each wind-powered electricity generation unit in the electric power system;
Figure 225215DEST_PATH_IMAGE034
value for loading in the t electric power system constantly;
Figure 297207DEST_PATH_IMAGE036
is the data of each wind-powered electricity generation unit in the t electric power system constantly;
The constraint of exerting oneself of each Hydropower Unit obtains through following formula in the electric power system:
Figure 51536DEST_PATH_IMAGE038
(5);
In the formula (5),
Figure 850865DEST_PATH_IMAGE040
is exerting oneself of i the Hydropower Unit t moment;
Figure 187300DEST_PATH_IMAGE042
is that i Hydropower Unit t minimum is constantly exerted oneself;
Figure 617144DEST_PATH_IMAGE044
is i Hydropower Unit t EIAJ constantly;
The constraint of the regulations speed of each Hydropower Unit obtains through following formula in the electric power system:
Figure 655507DEST_PATH_IMAGE046
(6);
In the formula (6),
Figure 9259DEST_PATH_IMAGE048
is the downward regulations speed of each Hydropower Unit in the electric power system;
Figure 652730DEST_PATH_IMAGE050
is the upwards regulations speed of each Hydropower Unit in the electric power system;
The constraint of the letdown flow of each Hydropower Unit obtains through following formula in the electric power system:
Figure 50213DEST_PATH_IMAGE052
(7);
In the formula (7),
Figure 779135DEST_PATH_IMAGE054
is a Hydropower Unit t letdown flow constantly;
Figure 670999DEST_PATH_IMAGE056
is a Hydropower Unit t minimum letdown flow constantly; is a Hydropower Unit t maximum letdown flow constantly;
The constraint of the storage capacity of each Hydropower Unit obtains through following formula in the electric power system:
(8);
In the formula (8),
Figure 766628DEST_PATH_IMAGE062
is a Hydropower Unit t storage capacity constantly;
Figure 649133DEST_PATH_IMAGE064
is a Hydropower Unit t minimum storage capacity constantly;
Figure 63934DEST_PATH_IMAGE066
is a Hydropower Unit t maximum storage capacity constantly;
The constraint of exerting oneself of each fired power generating unit obtains through following formula in the electric power system:
Figure 6482DEST_PATH_IMAGE068
(9);
In the formula (9), is exerting oneself of i fired power generating unit;
Figure 740400DEST_PATH_IMAGE072
is that the minimum of i fired power generating unit is exerted oneself;
Figure 212970DEST_PATH_IMAGE073
is i unit EIAJ;
The constraint of the regulations speed of each fired power generating unit obtains through following formula in the electric power system:
Figure 749256DEST_PATH_IMAGE075
(10);
In the formula (10),
Figure 674486DEST_PATH_IMAGE077
is the downward regulations speed of each fired power generating unit in the electric power system;
Figure 961111DEST_PATH_IMAGE079
is the upwards regulations speed of each fired power generating unit in the electric power system;
The constraint of the wind-powered electricity generation quality of power supply of each wind-powered electricity generation unit comprises following condition in the electric power system:
Voltage deviation: control wind-powered electricity generation unit be incorporated into the power networks point voltage for its rated voltage-3%-7%;
Frequency departure: the normal frequency deviation allowable value of electric power system is ± 0.2Hz, when the capacity of electric power system hour, the normal frequency deviation allowable value is loosened to ± 0.5Hz;
Voltage unbalance degree limit value: when electric power system normally moved, the negative sequence voltage degree of unbalance was no more than 2%, was no more than 4% in short-term;
Tri-phase unbalance factor: the expression formula of tri-phase unbalance factor is following:
Figure 101237DEST_PATH_IMAGE081
(11);
In the formula (11);
Figure 385587DEST_PATH_IMAGE083
is the positive sequence component root mean square value of three-phase voltage, and its unit is volt;
Figure 860431DEST_PATH_IMAGE085
is the negative sequence component root mean square value of three-phase voltage, and its unit is volt;
Figure 622851DEST_PATH_IMAGE087
is the zero-sequence component root mean square value of three-phase voltage, and its position is volt;
Flickering: the flickering interference value of the points of common connection that the wind-powered electricity generation unit is inserted satisfies the national standard requirement;
Harmonic wave: the harmonic wave injection current of the points of common connection at wind-powered electricity generation unit place satisfies the national standard requirement.
Said step 3.2) in, object vector obtains through following formula:
Figure 617483DEST_PATH_IMAGE089
(12);
Figure 72735DEST_PATH_IMAGE091
(13);
Figure 34874DEST_PATH_IMAGE093
(14);
In the formula (12),
Figure 600985DEST_PATH_IMAGE004
is the summation of exerting oneself of each wind-powered electricity generation unit in the electric power system;
Figure 450123DEST_PATH_IMAGE094
is the summation of exerting oneself of each fired power generating unit in the electric power system;
Figure 138594DEST_PATH_IMAGE008
is the summation of exerting oneself of each Hydropower Unit in the electric power system;
Figure 525713DEST_PATH_IMAGE095
for the active power of workload demand in the electric power system,
Figure 431266DEST_PATH_IMAGE096
is the station service power consumption rate of each power plant for the transmission losses in the electric power system;
In the formula (13),
Figure 587440DEST_PATH_IMAGE097
is the operating cost of each Hydropower Unit in the electric power system;
Figure 446812DEST_PATH_IMAGE018
is the operating cost of each fired power generating unit in the electric power system;
In the formula (14),
Figure 868697DEST_PATH_IMAGE022
is the summation of the pollutant emission of each fired power generating unit in the electric power system.
Said step 3.4) in, upgrade each particle's velocity and position and obtain through following formula:
Figure 42190DEST_PATH_IMAGE099
(15);
Figure 115188DEST_PATH_IMAGE101
(16);
Figure 896193DEST_PATH_IMAGE103
(17);
In formula (15)-(17), w is the inertia weight of particle rapidity; Iterations is an iterations; N is total iterations;
Figure 992325DEST_PATH_IMAGE105
and
Figure DEST_PATH_IMAGE107
is the random number of [0,1]; Pbest is the locally optimal solution of particle; Gbest is the globally optimal solution of particle.
Compare with conventional electric power management and running method, " wind-fire-water " coordinated dispatching method based on multiple agent of the present invention has the following advantages: one, taken into full account the power producing characteristics of various generating sets in the electric power system: Hydropower Unit exert oneself adjusting range big, regulate the speed fast; Fired power generating unit is because of the restriction of conditions such as receiving that boiler, steam turbine minimum technology are exerted oneself, and the adjusting range of exerting oneself of fired power generating unit is little, regulations speed is slow; Thermoelectric unit is influenced by heat supply exerting oneself of heat supply phase; Wind power generation has intermittence, fluctuation and randomness.Two, problems such as economy, minimizing pollutant emission have been taken into full account.Therefore this method not only can guarantee to utilize to greatest extent wind energy resources, and can realize the energy-saving and emission-reduction scheduling.
" wind-fire-water " coordinated dispatching method based on multiple agent of the present invention is based on brand-new scheduling principle; Realized the exerting oneself of the exerting oneself of electric power system apoplexy group of motors, fired power generating unit, exerting oneself of Hydropower Unit are carried out Collaborative Control; Effectively reduced the large-scale wind power impact of back of being incorporated into the power networks thus to electric power system; Avoid fluctuation and the variation of frequency of the active power of electric power system, guaranteed the safety of electric power system." wind-fire-water " coordinated dispatching method based on multiple agent of the present invention is from the angle of power scheduling; Not only guaranteed the power-balance of electric power system; But also considered the economy of power system operation and the pollutant emission problem of thermal power plant, it is very significant that this problem at the current environment and the energy receives under the background that people pay close attention to day by day.
The present invention efficiently solves the problem that conventional electric power management and running method can't satisfy the demand that large-scale wind power is incorporated into the power networks, and is applicable to large-scale wind-electricity integration traffic control.
Description of drawings
Fig. 1 is the step sketch map based on multiple agent " wind-fire-water " coordinated dispatching method of the present invention.
Fig. 2 is the structural representation of the frame model of " wind-fire-water " cooperative scheduling model among the present invention.
Fig. 3 is the automated system implementation framework sketch map based on multiple agent " wind-fire-water " coordinated dispatching method of the present invention.
Fig. 4 is the system control strategy illustraton of model based on multiple agent " wind-fire-water " coordinated dispatching method of the present invention.
Fig. 5 is the schematic flow sheet based on multiple agent " wind-fire-water " coordinated dispatching method of the present invention.
Fig. 6 is the schematic flow sheet of the MOPSO algorithm among the present invention.
Fig. 7 is the schematic flow sheet of the renewal pbest of the MOPSO algorithm among the present invention.
Fig. 8 is the schematic flow sheet of the renewal gbest of the MOPSO algorithm among the present invention.
Fig. 9 is the schematic flow sheet of the outside document of maintenance of the MOPSO algorithm among the present invention.
Figure 10 is the emulation experiment curve synoptic diagram based on multiple agent " wind-fire-water " coordinated dispatching method of the present invention.
Figure 11 adopts the coal consumption curve contrast sketch map based on fired power generating unit before and after " wind-fire-water " coordinated dispatching method of multiple agent of the present invention.
Embodiment
Based on " wind-fire-water " coordinated dispatching method of multiple agent, this method is to adopt following steps to realize:
1) in scheduling Agent, makes up " wind-fire-water " cooperative scheduling model based on multiple agent;
2) by the prediction data of workload demand in the collection of the load Agent in the electric power system electric power system, the prediction data with the workload demand that collects is sent to the scheduling Agent in the electric power system simultaneously; After scheduling Agent received the prediction data of workload demand, each thermoelectricity Agent in electric power system, water power Agent, wind-powered electricity generation Agent sent the request of image data;
After each thermoelectricity Agent receives the request of image data, gather the master data and the real time data of each fired power generating unit in the electric power system; After each water power Agent receives the request of image data, gather the master data and the real time data of each Hydropower Unit in the electric power system; After each wind-powered electricity generation Agent receives the request of image data, gather the real time data and the prediction data of each wind-powered electricity generation unit in the electric power system;
3) by each thermoelectricity Agent master data that collects and real time data are sent in " wind-fire-water " the cooperative scheduling model based on multiple agent; By each water power Agent master data that collects and real time data are sent in " wind-fire-water " the cooperative scheduling model based on multiple agent; By each wind-powered electricity generation Agent real time data that collects and prediction data are sent in " wind-fire-water " the cooperative scheduling model based on multiple agent;
" wind-fire-water " cooperative scheduling model based on multiple agent decomposes the data that receive, and utilizes the MOPSO algorithm to solve exerting oneself of the exerting oneself of each fired power generating unit in the electric power system, each Hydropower Unit respectively;
4) will find the solution the exerting oneself of each fired power generating unit that obtains by scheduling Agent and be sent to each thermoelectricity Agent in the electric power system; To find the solution the exerting oneself of each Hydropower Unit that obtains by scheduling Agent and be sent to the water power Agent in the electric power system; Each thermoelectricity Agent, water power Agent issue and the operation dispatching order according to exerting oneself of receiving.
Said step 1) may further comprise the steps:
1.1) make up the frame model of " wind-fire-water " cooperative scheduling model; Said frame model comprises several thermoelectricitys Agent, several water power Agent, several wind-powered electricity generations Agent, thermoelectricity Management Agent, water power Management Agent, wind-powered electricity generation Management Agent, scheduling Agent and load Agent; Wherein, each thermoelectricity Agent connects scheduling Agent through the thermoelectricity Management Agent; Each water power Agent connects scheduling Agent through the water power Management Agent; Each wind-powered electricity generation Agent connects scheduling Agent through the wind-powered electricity generation Management Agent; Load Agent connects scheduling Agent;
1.2) structure " wind-fire-water " cooperative scheduling Model Optimization target function; The optimization aim of said optimization aim function comprises: the power-balance problem of electric power system; The economy problems of power system operation; The emission pollution problem of each fired power generating unit in the electric power system;
1.3) confirm the spinning reserve of each fired power generating unit in the electric power system;
1.4) make up the constraints of " wind-fire-water " cooperative scheduling model; Said constraints comprises: the constraint of the positive and negative spinning reserve of electric power system; The constraint of exerting oneself of each fired power generating unit, the constraint of regulations speed in the electric power system; The constraint of the constraint of the constraint of exerting oneself of each Hydropower Unit, regulations speed, storage capacity, the constraint of letdown flow in the electric power system; The constraint of the wind-powered electricity generation quality of power supply of each wind-powered electricity generation unit in the electric power system.
Said step 2) in, the master data of each fired power generating unit comprises: the minimax of each fired power generating unit exert oneself, the make progress emissions data of downward regulations speed, operating cost data, pollutant; The real time data of each fired power generating unit comprises: each fired power generating unit go out force data in real time; The master data of each Hydropower Unit comprises: the minimax of each Hydropower Unit exert oneself, make progress downward regulations speed, minimax storage capacity, minimax letdown flow, operating cost data; The real time data of each Hydropower Unit comprises: each Hydropower Unit go out force data in real time; The real time data of each wind-powered electricity generation unit comprises: the data of the quality of power supply of each wind energy turbine set; The prediction data of each wind-powered electricity generation unit comprises: the prediction data of each wind energy turbine set; The prediction data of workload demand comprises: to the prediction data of load active power demand.
In the said step 3), the MOPSO algorithm may further comprise the steps:
3.1) the initialization population, and the scale M of definite population and total iterations N;
3.2) calculate the pairing object vector of each particle in the population, and upgrade the optimal solution pbest of each particle;
During to iterations iterations≤n, the noninferior solution in the population is joined in the outside document, and safeguard outside document;
To iterations iterations>during n, judge that whether fitness1 is less than ε; If greater than ε, think then that this is separated and be not noninferior solution; If less than ε, judge then whether fitness2 and fitness3 that this is separated arrange separating in the outside document; If domination is then directly separated this outside document of adding and is deleted ridden separating in the document; If this is separated by outside document domination, then this is separated and is not added outside document; If this separate with document in separate mutually and do not arrange, then this is separated the outside document of direct adding;
3.3) safeguard outside document, and from outside document, choose one and separate as globally optimal solution gbest;
3.4) upgrade each particle's velocity and position;
3.5) judge that whether iterations iterations is less than N; If iterations iterations is less than N, iterations iterations+1 then, and jump into step 3.2) circulation; If iterations iterations is greater than N, then loop ends;
3.6) from outside document, choose globally optimal solution gbest, and return globally optimal solution gbest.
Said step 1.2) in, the power-balance problem of electric power system obtains through following formula:
Figure 500667DEST_PATH_IMAGE002
(1);
In the formula (1),
Figure 506800DEST_PATH_IMAGE004
is the summation of exerting oneself of each wind-powered electricity generation unit in the electric power system;
Figure 458707DEST_PATH_IMAGE006
is the summation of exerting oneself of each fired power generating unit in the electric power system;
Figure 42135DEST_PATH_IMAGE008
is the summation of exerting oneself of each Hydropower Unit in the electric power system;
Figure 354167DEST_PATH_IMAGE010
is the active power of workload demand in the electric power system;
Figure 339441DEST_PATH_IMAGE012
is the station service power consumption rate of transmission losses in the electric power system and each power plant;
The economy problems of power system operation obtains through following formula:
Figure 2012102470553100002DEST_PATH_IMAGE108
(2);
In the formula (2),
Figure DEST_PATH_IMAGE109
is the operating cost of each Hydropower Unit in the electric power system;
Figure DEST_PATH_IMAGE110
is the operating cost of each fired power generating unit in the electric power system;
The emission pollution problem of each fired power generating unit obtains through following formula in the electric power system:
Figure 337615DEST_PATH_IMAGE020
(3);
In the formula (3),
Figure 470656DEST_PATH_IMAGE022
is the summation that discharges pollutants of each fired power generating unit in the electric power system.
Through type (2) and formula (3) can make the multiple electricity of unit that operating cost is lower in the electric power system, pollutant emission is less, and the unit that operating cost is higher, pollutant emission is more generates electricity less; Guarantee the requirement of the economy and the feature of environmental protection of power system operation thus.
Said step 1.3) in, definite principle of the spinning reserve of each fired power generating unit is following in the electric power system:
If fired power generating unit is coal group of motors and the annual peak regulation of participating in, to single-machine capacity 300MW and above newly-built unit, will rotate up subsequent use confirming as about 20%, will be rotated down and subsequent usely confirm as 25%; Production time unit early to single-machine capacity 200MW-600MW will rotate up subsequent use confirming as about 15%, will be rotated down subsequent use confirming as about 20%; To single-machine capacity 135MW and following unit, will rotate up and subsequent usely confirm as 10%, will be rotated down and subsequent usely confirm as 15%;
If fired power generating unit is a thermoelectric unit and at heating period, to single-machine capacity 135MW and following unit, will exert oneself is obstructed confirms as 10%, will rotate up and subsequent usely confirm as 5%, will be rotated down and subsequent usely confirm as 10%; To single-machine capacity 200MW and above unit, will exert oneself is obstructed confirms as 15%-20%, will rotate up subsequent usely to confirm as 10%, will be rotated down subsequent usely to confirm as 10%; If fired power generating unit is a thermoelectric unit and at non-heating period, to single-machine capacity 135MW and following unit, will rotate up and subsequent usely confirm as 10%, will be rotated down and subsequent usely confirm as 15%; To the unit of single-machine capacity 200MW-300MW, will rotate up and subsequent usely confirm as 15%, will be rotated down and subsequent usely confirm as 20%.
Said step 1.4) in, the constraint of the positive and negative spinning reserve of electric power system obtains through following formula:
Figure 524063DEST_PATH_IMAGE024
(4);
In the formula (4),
Figure 176892DEST_PATH_IMAGE026
for each Hydropower Unit in the t electric power system constantly upwards, be rotated down subsequent use capacity summation; for each fired power generating unit in the t electric power system constantly upwards, be rotated down subsequent use capacity summation;
Figure 12310DEST_PATH_IMAGE030
predicted value for loading in the electric power system;
Figure 869408DEST_PATH_IMAGE032
is the prediction data of each wind-powered electricity generation unit in the electric power system; value for loading in the t electric power system constantly;
Figure 90622DEST_PATH_IMAGE036
is the data of each wind-powered electricity generation unit in the t electric power system constantly;
The constraint of exerting oneself of each Hydropower Unit obtains through following formula in the electric power system:
Figure 135938DEST_PATH_IMAGE038
(5);
In the formula (5),
Figure 344197DEST_PATH_IMAGE040
is exerting oneself of i the Hydropower Unit t moment;
Figure 892990DEST_PATH_IMAGE042
is that i Hydropower Unit t minimum is constantly exerted oneself;
Figure 43348DEST_PATH_IMAGE044
is i Hydropower Unit t EIAJ constantly;
The constraint of the regulations speed of each Hydropower Unit obtains through following formula in the electric power system:
Figure 310381DEST_PATH_IMAGE046
(6);
In the formula (6), is the downward regulations speed of each Hydropower Unit in the electric power system;
Figure 119069DEST_PATH_IMAGE050
is the upwards regulations speed of each Hydropower Unit in the electric power system;
The constraint of the letdown flow of each Hydropower Unit obtains through following formula in the electric power system:
Figure 787947DEST_PATH_IMAGE052
(7);
In the formula (7),
Figure DEST_PATH_IMAGE112
is a Hydropower Unit t letdown flow constantly;
Figure 859940DEST_PATH_IMAGE056
is a Hydropower Unit t minimum letdown flow constantly;
Figure 411007DEST_PATH_IMAGE058
is a Hydropower Unit t maximum letdown flow constantly;
The constraint of the storage capacity of each Hydropower Unit obtains through following formula in the electric power system:
Figure 413598DEST_PATH_IMAGE060
(8);
In the formula (8), is a Hydropower Unit t storage capacity constantly;
Figure 750032DEST_PATH_IMAGE064
is a Hydropower Unit t minimum storage capacity constantly;
Figure 976614DEST_PATH_IMAGE066
is a Hydropower Unit t maximum storage capacity constantly;
The constraint of exerting oneself of each fired power generating unit obtains through following formula in the electric power system:
Figure 31289DEST_PATH_IMAGE068
(9);
In the formula (9),
Figure 571992DEST_PATH_IMAGE070
is exerting oneself of i fired power generating unit;
Figure 12201DEST_PATH_IMAGE072
is that the minimum of i fired power generating unit is exerted oneself;
Figure 612946DEST_PATH_IMAGE073
is i unit EIAJ;
The constraint of the regulations speed of each fired power generating unit obtains through following formula in the electric power system:
(10);
In the formula (10),
Figure DEST_PATH_IMAGE114
is the downward regulations speed of each fired power generating unit in the electric power system;
Figure 296048DEST_PATH_IMAGE079
is the upwards regulations speed of each fired power generating unit in the electric power system;
The constraint of the wind-powered electricity generation quality of power supply of each wind-powered electricity generation unit comprises following condition in the electric power system:
Voltage deviation: control wind-powered electricity generation unit be incorporated into the power networks point voltage for its rated voltage-3%-7%;
Frequency departure: the normal frequency deviation allowable value of electric power system is ± 0.2Hz, when the capacity of electric power system hour, the normal frequency deviation allowable value is loosened to ± 0.5Hz;
Voltage unbalance degree limit value: when electric power system normally moved, the negative sequence voltage degree of unbalance was no more than 2%, was no more than 4% in short-term;
Tri-phase unbalance factor: the expression formula of tri-phase unbalance factor is following:
Figure 607075DEST_PATH_IMAGE081
(11);
In the formula (11);
Figure 175460DEST_PATH_IMAGE083
is the positive sequence component root mean square value of three-phase voltage, and its unit is volt;
Figure 391677DEST_PATH_IMAGE085
is the negative sequence component root mean square value of three-phase voltage, and its unit is volt;
Figure 98951DEST_PATH_IMAGE087
is the zero-sequence component root mean square value of three-phase voltage, and its position is volt;
Flickering: the flickering interference value of the points of common connection that the wind-powered electricity generation unit is inserted satisfies the national standard requirement;
Harmonic wave: the harmonic wave injection current of the points of common connection at wind-powered electricity generation unit place satisfies the national standard requirement.
Said step 3.2) in, object vector obtains through following formula:
Figure 513752DEST_PATH_IMAGE089
(12);
Figure 190721DEST_PATH_IMAGE091
(13);
Figure 441705DEST_PATH_IMAGE093
(14);
In the formula (12),
Figure 190218DEST_PATH_IMAGE004
is the summation of exerting oneself of each wind-powered electricity generation unit in the electric power system;
Figure 397208DEST_PATH_IMAGE094
is the summation of exerting oneself of each fired power generating unit in the electric power system; is the summation of exerting oneself of each Hydropower Unit in the electric power system; for the active power of workload demand in the electric power system,
Figure DEST_PATH_IMAGE115
is the station service power consumption rate of each power plant for the transmission losses in the electric power system;
In the formula (13),
Figure 348612DEST_PATH_IMAGE016
is the operating cost of each Hydropower Unit in the electric power system;
Figure 675688DEST_PATH_IMAGE018
is the operating cost of each fired power generating unit in the electric power system;
In the formula (14),
Figure 22356DEST_PATH_IMAGE022
is the summation of the pollutant emission of each fired power generating unit in the electric power system.
Said step 3.4) in, upgrade each particle's velocity and position and obtain through following formula:
Figure 169303DEST_PATH_IMAGE099
(15);
(16);
(17);
In formula (15)-(17), w is the inertia weight of particle rapidity; Iterations is an iterations; N is total iterations;
Figure 709503DEST_PATH_IMAGE105
and
Figure 422375DEST_PATH_IMAGE107
is the random number of [0,1]; Pbest is the locally optimal solution of particle; Gbest is the globally optimal solution of particle.
During practical implementation; Frame model for making up shown in Figure 2 based on " wind-fire-water " cooperative scheduling of multiple agent; Adopt the dispatching patcher model of this structure of Fig. 2 to have following advantage: 1) to have good distributed characteristics, meet large-scale wind power and insert distributed characteristics behind the electrical network.2) adopt this structure well to solve total activation Agent with the communication issue between each Agent of power plant.The constructed model of this method has added district management Agent between total activation Agent and the end Agent of each factory; Can reduce the communication bandwidth of total activation Agent like this, prevent that the end Agent of each factory from communicating by letter with total activation Agent and cause the communication blocking of total activation Agent.Shown in Figure 3 is the implementation framework of the automated system of " wind-fire-water " coordinated dispatching method based on multiple agent of the present invention.Wherein the end Agent of factory (wind energy turbine set Agent, the Agent of thermal power plant and hydroelectric station Agent) is through the needed data of acquisition system collection scheduling Agent; Communication language (ACL language) through Agent sends in the dispatching patcher model; Agent calls these data and utilizes the MOPSO algorithm to find the solution by scheduling; Find the solution and finish the back and solving result is sent to the end Agent of each factory, issue and the operation dispatching order by them by scheduling Agent.Shown in Figure 4 is the model of the system control strategy of " wind-fire-water " coordinated dispatching method based on multiple agent of the present invention.Wherein, Scheduling Agent exerts oneself according to the prediction of active power and the wind-powered electricity generation of the forecast demand of load Agent and water power, exerting oneself in real time of thermoelectricity calculate △ PW; Dispatch Agent simultaneously and let the energy output △ PG and the △ PH of thermoelectricity Agent, water power Agent adjustment self, make according to the constraints of each thermoelectricity, Hydropower Unit | △ PW+ △ PG+ △ PH| → 0; Shown in Figure 5 is the flow process of " wind-fire-water " coordinated dispatching method based on multiple agent of the present invention.Wherein, the 1st step of flow process is to judge whether scheduling Agent receives the t+1 data (being prediction data) constantly that load Agent sends at t constantly, if the information of receiving then continue, otherwise scheduling Agent is in wait state.The 2nd step was that scheduling Agent receives after the workload demand data, sent the request of image data to the end Agent of each factory; The 3rd step was the end Agent of each factory, received the data that collection scheduling Agent needs after the request that scheduling Agent sends and sent to scheduling Agent; The 4th step was that scheduling Agent receives after prediction data and the master data, utilized the MOPSO algorithm to find the solution; The 5th step: the result that finding the solution of step 4 obtained sends to the end Agent of each factory, is responsible for issuing with operation dispatching by them and orders.Shown in Figure 6 is the flow process of MOPSO algorithm.Shown in Figure 7 for upgrading the flow process of pbest.Shown in Figure 8 for upgrading the flow process of globally optimal solution gbest.Shown in Figure 9 for safeguarding the flow process of outside document.Installed capacity and the local data of loading of choosing thermoelectricity, water power and the wind-powered electricity generation in Xinzhou, two cities, Shuozhou for the present invention shown in Figure 10, the emulation experiment of carrying out.Can find out that from result of experiment " wind-fire-water " coordinated dispatching method based on multiple agent of the present invention can be realized smoothly being incorporated into the power networks of wind-powered electricity generation through thermoelectricity and exerting oneself of Hydropower Unit in the collaborative electric power system.Shown in Figure 11 is based on " wind-fire-water " coordinated dispatching method based on multiple agent of the present invention, and considers the comparison of coal consumption curve and the net coal consumption rate curve of each fired power generating unit of the operational mode of not considering economy, environmental protection of fired power generating unit of the operational mode of electric power system economy, environmental protection.Can draw through Figure 11; After adopting " wind-fire-water " coordinated dispatching method based on multiple agent of the present invention; The net coal consumption rate of fired power generating unit is starkly lower than the net coal consumption rate of only considering meritorious balance in the electric power system, explains that the inventive method can make electric power system reach the requirement of economy, environmental protection operation.

Claims (9)

1. " wind-fire-water " coordinated dispatching method based on multiple agent is characterized in that: this method is to adopt following steps to realize:
1) in scheduling Agent, makes up " wind-fire-water " cooperative scheduling model based on multiple agent;
2) by the prediction data of workload demand in the collection of the load Agent in the electric power system electric power system, the prediction data with the workload demand that collects is sent to the scheduling Agent in the electric power system simultaneously; After scheduling Agent received the prediction data of workload demand, each thermoelectricity Agent in electric power system, water power Agent, wind-powered electricity generation Agent sent the request of image data;
After each thermoelectricity Agent receives the request of image data, gather the master data and the real time data of each fired power generating unit in the electric power system; After each water power Agent receives the request of image data, gather the master data and the real time data of each Hydropower Unit in the electric power system; After each wind-powered electricity generation Agent receives the request of image data, gather the real time data and the prediction data of each wind-powered electricity generation unit in the electric power system;
3) by each thermoelectricity Agent master data that collects and real time data are sent in " wind-fire-water " the cooperative scheduling model based on multiple agent; By each water power Agent master data that collects and real time data are sent in " wind-fire-water " the cooperative scheduling model based on multiple agent; By each wind-powered electricity generation Agent real time data that collects and prediction data are sent in " wind-fire-water " the cooperative scheduling model based on multiple agent;
" wind-fire-water " cooperative scheduling model based on multiple agent decomposes the data that receive, and utilizes the MOPSO algorithm to solve exerting oneself of the exerting oneself of each fired power generating unit in the electric power system, each Hydropower Unit respectively;
4) will find the solution the exerting oneself of each fired power generating unit that obtains by scheduling Agent and be sent to each thermoelectricity Agent in the electric power system; To find the solution the exerting oneself of each Hydropower Unit that obtains by scheduling Agent and be sent to the water power Agent in the electric power system; Each thermoelectricity Agent, water power Agent issue and the operation dispatching order according to exerting oneself of receiving.
2. " wind-fire-water " coordinated dispatching method based on multiple agent according to claim 1 is characterized in that:
Said step 1) may further comprise the steps:
1.1) make up the frame model of " wind-fire-water " cooperative scheduling model; Said frame model comprises several thermoelectricitys Agent, several water power Agent, several wind-powered electricity generations Agent, thermoelectricity Management Agent, water power Management Agent, wind-powered electricity generation Management Agent, scheduling Agent and load Agent; Wherein, each thermoelectricity Agent connects scheduling Agent through the thermoelectricity Management Agent; Each water power Agent connects scheduling Agent through the water power Management Agent; Each wind-powered electricity generation Agent connects scheduling Agent through the wind-powered electricity generation Management Agent; Load Agent connects scheduling Agent;
1.2) structure " wind-fire-water " cooperative scheduling Model Optimization target function; The optimization aim of said optimization aim function comprises: the power-balance problem of electric power system; The economy problems of power system operation; The emission pollution problem of each fired power generating unit in the electric power system;
1.3) confirm the spinning reserve of each fired power generating unit in the electric power system;
1.4) make up the constraints of " wind-fire-water " cooperative scheduling model; Said constraints comprises: the constraint of the positive and negative spinning reserve of electric power system; The constraint of exerting oneself of each fired power generating unit, the constraint of regulations speed in the electric power system; The constraint of the constraint of the constraint of exerting oneself of each Hydropower Unit, regulations speed, storage capacity, the constraint of letdown flow in the electric power system; The constraint of the wind-powered electricity generation quality of power supply of each wind-powered electricity generation unit in the electric power system.
3. " wind-fire-water " coordinated dispatching method based on multiple agent according to claim 1 is characterized in that:
Said step 2) in, the master data of each fired power generating unit comprises: the minimax of each fired power generating unit exert oneself, the make progress emissions data of downward regulations speed, operating cost data, pollutant; The real time data of each fired power generating unit comprises: each fired power generating unit go out force data in real time; The master data of each Hydropower Unit comprises: the minimax of each Hydropower Unit exert oneself, make progress downward regulations speed, minimax storage capacity, minimax letdown flow, operating cost data; The real time data of each Hydropower Unit comprises: each Hydropower Unit go out force data in real time; The real time data of each wind-powered electricity generation unit comprises: the data of the quality of power supply of each wind energy turbine set; The prediction data of each wind-powered electricity generation unit comprises: the prediction data of each wind energy turbine set; The prediction data of workload demand comprises: to the prediction data of load active power demand.
4. " wind-fire-water " coordinated dispatching method based on multiple agent according to claim 1 is characterized in that:
In the said step 3), the MOPSO algorithm may further comprise the steps:
3.1) the initialization population, and the scale M of definite population and total iterations N;
3.2) calculate the pairing object vector of each particle in the population, and upgrade the optimal solution pbest of each particle;
During to iterations iterations≤n, the noninferior solution in the population is joined in the outside document, and safeguard outside document;
To iterations iterations>during n, judge that whether fitness1 is less than ε; If greater than ε, think then that this is separated and be not noninferior solution; If less than ε, judge then whether fitness2 and fitness3 that this is separated arrange separating in the outside document; If domination is then directly separated this outside document of adding and is deleted ridden separating in the document; If this is separated by outside document domination, then this is separated and is not added outside document; If this separate with document in separate mutually and do not arrange, then this is separated the outside document of direct adding;
3.3) safeguard outside document, and from outside document, choose one and separate as globally optimal solution gbest;
3.4) upgrade each particle's velocity and position;
3.5) judge that whether iterations iterations is less than N; If iterations iterations is less than N, iterations iterations+1 then, and jump into step 3.2) circulation; If iterations iterations is greater than N, then loop ends;
3.6) from outside document, choose globally optimal solution gbest, and return globally optimal solution gbest.
5. " wind-fire-water " coordinated dispatching method based on multiple agent according to claim 2 is characterized in that:
Said step 1.2) in, the power-balance problem of electric power system obtains through following formula:
Figure 140850DEST_PATH_IMAGE002
(1);
In the formula (1),
Figure 17539DEST_PATH_IMAGE004
is the summation of exerting oneself of each wind-powered electricity generation unit in the electric power system;
Figure 840002DEST_PATH_IMAGE006
is the summation of exerting oneself of each fired power generating unit in the electric power system; is the summation of exerting oneself of each Hydropower Unit in the electric power system; is the active power of workload demand in the electric power system;
Figure 663230DEST_PATH_IMAGE012
is the station service power consumption rate of transmission losses in the electric power system and each power plant;
The economy problems of power system operation obtains through following formula:
(2);
In the formula (2), is the operating cost of each Hydropower Unit in the electric power system;
Figure 210252DEST_PATH_IMAGE018
is the operating cost of each fired power generating unit in the electric power system;
The emission pollution problem of each fired power generating unit obtains through following formula in the electric power system:
Figure 546686DEST_PATH_IMAGE020
(3);
In the formula (3), is the summation that discharges pollutants of each fired power generating unit in the electric power system;
Through type (2) and formula (3) can make the multiple electricity of unit that operating cost is lower in the electric power system, pollutant emission is less, and the unit that operating cost is higher, pollutant emission is more generates electricity less; Guarantee the requirement of the economy and the feature of environmental protection of power system operation thus.
6. " wind-fire-water " coordinated dispatching method based on multiple agent according to claim 2 is characterized in that:
Said step 1.3) in, definite principle of the spinning reserve of each fired power generating unit is following in the electric power system:
If fired power generating unit is coal group of motors and the annual peak regulation of participating in, to single-machine capacity 300MW and above newly-built unit, will rotate up subsequent use confirming as about 20%, will be rotated down and subsequent usely confirm as 25%; Production time unit early to single-machine capacity 200MW-600MW will rotate up subsequent use confirming as about 15%, will be rotated down subsequent use confirming as about 20%; To single-machine capacity 135MW and following unit, will rotate up and subsequent usely confirm as 10%, will be rotated down and subsequent usely confirm as 15%;
If fired power generating unit is a thermoelectric unit and at heating period, to single-machine capacity 135MW and following unit, will exert oneself is obstructed confirms as 10%, will rotate up and subsequent usely confirm as 5%, will be rotated down and subsequent usely confirm as 10%; To single-machine capacity 200MW and above unit, will exert oneself is obstructed confirms as 15%-20%, will rotate up subsequent usely to confirm as 10%, will be rotated down subsequent usely to confirm as 10%; If fired power generating unit is a thermoelectric unit and at non-heating period, to single-machine capacity 135MW and following unit, will rotate up and subsequent usely confirm as 10%, will be rotated down and subsequent usely confirm as 15%; To the unit of single-machine capacity 200MW-300MW, will rotate up and subsequent usely confirm as 15%, will be rotated down and subsequent usely confirm as 20%.
7. " wind-fire-water " coordinated dispatching method based on multiple agent according to claim 2 is characterized in that:
Said step 1.4) in, the constraint of the positive and negative spinning reserve of electric power system obtains through following formula:
Figure 280473DEST_PATH_IMAGE024
(4);
In the formula (4),
Figure 555596DEST_PATH_IMAGE026
for each Hydropower Unit in the t electric power system constantly upwards, be rotated down subsequent use capacity summation;
Figure 12117DEST_PATH_IMAGE028
for each fired power generating unit in the t electric power system constantly upwards, be rotated down subsequent use capacity summation;
Figure 409600DEST_PATH_IMAGE030
predicted value for loading in the electric power system;
Figure 138521DEST_PATH_IMAGE032
is the prediction data of each wind-powered electricity generation unit in the electric power system;
Figure 30385DEST_PATH_IMAGE034
value for loading in the t electric power system constantly;
Figure 528363DEST_PATH_IMAGE036
is the data of each wind-powered electricity generation unit in the t electric power system constantly;
The constraint of exerting oneself of each Hydropower Unit obtains through following formula in the electric power system:
Figure 362327DEST_PATH_IMAGE038
(5);
In the formula (5),
Figure 312965DEST_PATH_IMAGE040
is exerting oneself of i the Hydropower Unit t moment;
Figure 8520DEST_PATH_IMAGE042
is that i Hydropower Unit t minimum is constantly exerted oneself;
Figure 361004DEST_PATH_IMAGE044
is i Hydropower Unit t EIAJ constantly;
The constraint of the regulations speed of each Hydropower Unit obtains through following formula in the electric power system:
Figure 365869DEST_PATH_IMAGE046
(6);
In the formula (6), is the downward regulations speed of each Hydropower Unit in the electric power system;
Figure 37470DEST_PATH_IMAGE050
is the upwards regulations speed of each Hydropower Unit in the electric power system;
The constraint of the letdown flow of each Hydropower Unit obtains through following formula in the electric power system:
Figure 572356DEST_PATH_IMAGE052
(7);
In the formula (7),
Figure 685806DEST_PATH_IMAGE054
is a Hydropower Unit t letdown flow constantly; is a Hydropower Unit t minimum letdown flow constantly;
Figure 648394DEST_PATH_IMAGE058
is a Hydropower Unit t maximum letdown flow constantly;
The constraint of the storage capacity of each Hydropower Unit obtains through following formula in the electric power system:
(8);
In the formula (8),
Figure 56558DEST_PATH_IMAGE062
is a Hydropower Unit t storage capacity constantly;
Figure 282134DEST_PATH_IMAGE064
is a Hydropower Unit t minimum storage capacity constantly;
Figure 310133DEST_PATH_IMAGE066
is a Hydropower Unit t maximum storage capacity constantly;
The constraint of exerting oneself of each fired power generating unit obtains through following formula in the electric power system:
Figure 554033DEST_PATH_IMAGE068
(9);
In the formula (9),
Figure 556755DEST_PATH_IMAGE070
is exerting oneself of i fired power generating unit; is that the minimum of i fired power generating unit is exerted oneself;
Figure 85005DEST_PATH_IMAGE073
is i unit EIAJ;
The constraint of the regulations speed of each fired power generating unit obtains through following formula in the electric power system:
(10);
In the formula (10),
Figure 560297DEST_PATH_IMAGE077
is the downward regulations speed of each fired power generating unit in the electric power system; is the upwards regulations speed of each fired power generating unit in the electric power system;
The constraint of the wind-powered electricity generation quality of power supply of each wind-powered electricity generation unit comprises following condition in the electric power system:
Voltage deviation: control wind-powered electricity generation unit be incorporated into the power networks point voltage for its rated voltage-3%-7%;
Frequency departure: the normal frequency deviation allowable value of electric power system is ± 0.2Hz, when the capacity of electric power system hour, the normal frequency deviation allowable value is loosened to ± 0.5Hz;
Voltage unbalance degree limit value: when electric power system normally moved, the negative sequence voltage degree of unbalance was no more than 2%, was no more than 4% in short-term;
Tri-phase unbalance factor: the expression formula of tri-phase unbalance factor is following:
(11);
In the formula (11); is the positive sequence component root mean square value of three-phase voltage, and its unit is volt;
Figure 880234DEST_PATH_IMAGE085
is the negative sequence component root mean square value of three-phase voltage, and its unit is volt;
Figure 551387DEST_PATH_IMAGE087
is the zero-sequence component root mean square value of three-phase voltage, and its position is volt;
Flickering: the flickering interference value of the points of common connection that the wind-powered electricity generation unit is inserted satisfies the national standard requirement;
Harmonic wave: the harmonic wave injection current of the points of common connection at wind-powered electricity generation unit place satisfies the national standard requirement.
8. " wind-fire-water " coordinated dispatching method based on multiple agent according to claim 4 is characterized in that:
Said step 3.2) in, object vector obtains through following formula:
Figure 724879DEST_PATH_IMAGE089
(12);
Figure DEST_PATH_IMAGE091
(13);
Figure DEST_PATH_IMAGE093
(14);
In the formula (12),
Figure 599208DEST_PATH_IMAGE004
is the summation of exerting oneself of each wind-powered electricity generation unit in the electric power system;
Figure 380213DEST_PATH_IMAGE094
is the summation of exerting oneself of each fired power generating unit in the electric power system;
Figure 476345DEST_PATH_IMAGE008
is the summation of exerting oneself of each Hydropower Unit in the electric power system;
Figure DEST_PATH_IMAGE095
for the active power of workload demand in the electric power system,
Figure 250266DEST_PATH_IMAGE096
is the station service power consumption rate of each power plant for the transmission losses in the electric power system;
In the formula (13),
Figure 928503DEST_PATH_IMAGE097
is the operating cost of each Hydropower Unit in the electric power system;
Figure 67361DEST_PATH_IMAGE098
is the operating cost of each fired power generating unit in the electric power system;
In the formula (14),
Figure 713106DEST_PATH_IMAGE022
is the summation of the pollutant emission of each fired power generating unit in the electric power system.
9. " wind-fire-water " coordinated dispatching method based on multiple agent according to claim 4 is characterized in that:
Said step 3.4) in, upgrade each particle's velocity and position and obtain through following formula:
Figure 962821DEST_PATH_IMAGE100
(15);
Figure DEST_PATH_IMAGE102
(16);
Figure DEST_PATH_IMAGE104
(17);
In formula (15)-(17), w is the inertia weight of particle rapidity; Iterations is an iterations; N is total iterations;
Figure DEST_PATH_IMAGE106
and
Figure DEST_PATH_IMAGE108
is the random number of [0,1]; Pbest is the locally optimal solution of particle; Gbest is the globally optimal solution of particle.
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CN103490449A (en) * 2013-10-10 2014-01-01 华北电力大学 Method for optimizing operation simulation of multi-energy combined power generation system
CN103887814A (en) * 2014-02-13 2014-06-25 国家电网公司 Thermal power unit emergency control method for blower group offline fault
CN103887814B (en) * 2014-02-13 2015-12-02 国家电网公司 A kind of urgent regulate and control method of fired power generating unit of tackling blower fan group off-grid fault
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CN107479523A (en) * 2017-09-28 2017-12-15 齐鲁工业大学 Multiple agent based on QPSO manufactures process optimization method and apparatus
CN108678815A (en) * 2018-05-07 2018-10-19 国网黑龙江省电力有限公司电力科学研究院 The minimum technology output measurement device and method of extraction condensing type Turbo-generator Set
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