CN109857153A - Tower type solar power station heliostat dispatching method - Google Patents
Tower type solar power station heliostat dispatching method Download PDFInfo
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- CN109857153A CN109857153A CN201910090628.8A CN201910090628A CN109857153A CN 109857153 A CN109857153 A CN 109857153A CN 201910090628 A CN201910090628 A CN 201910090628A CN 109857153 A CN109857153 A CN 109857153A
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Abstract
The invention discloses a kind of tower type solar power station heliostat dispatching methods, belong to tower type solar energy thermal power generation technical field, include the following steps, Step 1: by heat dump panel gridding, each grid is a target point region on heat dump panel, and target point region is focus point region；Step 2: setting initial value, Step 3: calculating heat dump currently absorbs performance number absp, Step 4: determining the operating condition and heliostat scheduling type of heliostat, Step 5: the heliostat inventory that creation can call, Step 6: calculating, heat dump need to increase performance number newly or heat dump minimum defocuses performance number.The present invention can not only simplify the calculating of mirror field heliostat controller and logic judgment, and reliable, effectively can efficiently complete the selection and traffic control to mirror field heliostat, while batch splitting scheduling heliostat, and the heat dump as caused by scheduling is avoided to damage.
Description
Technical field
The present invention relates to a kind of tower type solar power station heliostat dispatching methods, belong to tower type solar energy thermal power generation technology
Field.
Background technique
With the limitation of fossil fuel application in recent years, the development of conventional coal fired power plant is significantly reduced, and cleaning is too
Positive energy hot generation technology is rapidly developed due to being able to achieve large-scale Solar use, tower-type solar thermal power generating system
Sunlight is reflected into the heat dump on heat absorption tower using the heliostat of the real-time tracking sun, by heating the heat absorption working medium in it
High temperature and high pressure steam driving Turbo-generator Set power generation is generated, as shown in Figure 1, heliostat field is tower-type solar thermal power generating system
Important component, the settled date lens group being made of numerous heliostats, for by sunlight be reflected into heat absorption tower heat dump
On.During photo-thermal power station operates normally, when heat dump load variations or mirror field efficiency change, need to the mirror field settled date
Mirror is focused or defocuses adjustment to meet the requirement of heat dump thermal power.
Existing tower type solar power station heliostat dispatching method is generally by the heliostat of entire Jing Chang simultaneously to heat dump
Centre focus, heat dump surface energy flux density are unevenly distributed, while the heat assembled not only is easily damaged heat dump, are reduced and are inhaled
Hot device service life, and reduce heat and change efficiency, and existing dispatching method mostly uses genetic algorithm, needs complete to variable
Office's search makes every effort to find optimum optimization solution, but its when the tower this population size in mirror field is larger, convergence rate is slower, Jing Chang is fixed
Heliostat controller needs to carry out complicated calculating and logic judgment, not only needs to occupy good computing resource and also takes up largely
Time.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of tower type solar power station heliostat dispatching methods, can not only
Enough simplify the calculating of mirror field heliostat controller and logic judgment, and reliable, effective efficiently can complete to determine Jing Chang
The selection of solar eyepiece and traffic control, while batch splitting scheduling heliostat avoid the heat dump as caused by scheduling from damaging.
In order to solve the above technical problems, the technical solution used in the present invention is:
Tower type solar power station heliostat dispatching method, includes the following steps, Step 1: heat dump panel gridding is inhaled
Each grid is a target point region on hot device panel, and target point region is focus point region or diapoint region；
Step 2: setting initial value, sets heat sink set value of the power absp_sp, simultaneously in heat dump control system
One interior tolerance T and outer tolerance T0 is set to set value of the power absp_sp is absorbed, heat dump minimum power permissible value is
Absp_sp-T, heat dump maximum power permissible value are absp_sp+T0, and the performance number that heat dump allows to launch every time or defocus is
absp_step；
Step 3: calculating heat dump currently absorbs performance number absp, heat dump control system according to heat dump import temperature of molten salt,
Outlet temperature of molten salt, heat dump import flow rate of molten salt and heat dump efficiency calculation go out to be worked as by the heat dump that mirror field heliostat provides
Preceding absorption performance number absp, while heat dump control system carries out data biography by communication mode and mirror field heliostat controller
It send；
Step 4: determining the operating condition and heliostat scheduling type of heliostat, heliostat is in the case where focusing operating condition, the mirror field settled date
Mirror controller compares heat dump, and currently to absorb the relationship that performance number absp and heat dump minimum power permissible value are absp_sp-T true
The fixed focusing scheduling for whether carrying out heliostat, for heliostat in the case where defocusing operating condition, it is current that mirror field heliostat controller compares heat dump
Performance number absp and heat dump maximum power permissible value is absorbed to determine whether to carry out dissipating for heliostat for the relationship of absp_sp+T0
Coke scheduling；
Step 5: the heliostat inventory that creation can call, it is determined whether have the heliostat of available focusing or defocusing, heliostat is clear
Singly include all heliostats under not running operating condition, the settled date cannot be formed if the heliostat that focusing or defocusing not can be used
Mirror inventory；
Step 6: calculating, heat dump need to increase performance number newly or heat dump minimum defocuses performance number, mirror field heliostat controller according to
Heat dump set value of the power absp_sp, heat dump currently absorb power absp, interior tolerance T and outer tolerance T0 and step
The heliostat operating condition and heliostat scheduling type determined in four, heat dump is calculated when heliostat focuses scheduling need to increase power newly
Heat dump minimum is calculated when value absp_focus=(absp_sp+T0)-absp or heliostat defocus scheduling defocuses performance number absp_
dfocus=absp-(absp_sp-T)；
Step 7: newly performance number need to be increased the heat dump being calculated or heat dump minimum defocuses performance number and is assigned to different suctions
On hot device panel, mirror field heliostat controller is according to each panel maximum power permissible value Adm_power of heat dump and heat dump
Current absorption performance number absp need to increase heat dump newly performance number absp_focus or heat dump minimum defocuses performance number absp_
Dfocus is assigned on different heat dump panels；
Step 8: mirror field heliostat controller is according to the heat dump panel for distributing focusing or defocusing power in step 7, at random
Heliostat is chosen from the heliostat inventory in step 5, completes gathering in batches for heliostat according to focusing or defocusing scheduling flow
Coke defocuses scheduling.
A further improvement of the present invention is that: in step 4, it is minimum that heat dump currently absorbs performance number absp < heat dump
When power permissible value absp_sp-T, heliostat needs are focused scheduling, otherwise the energy that current mirror field heliostat provides can
It meets the requirements, does not need to dispatch new heliostat to heat dump；Heat dump currently absorbs performance number absp > heat dump maximum work
When rate permissible value absp_sp+T0, heliostat carries out defocusing scheduling, otherwise the energy that current mirror field heliostat provides can
It meets the requirements, is not required to defocus new heliostat to heat dump.
A further improvement of the present invention is that: the focusing scheduling flow in step 8 is,
A, focus point region of the heliostat on heat dump panel is determined, mirror field heliostat controller is according to selecting in step 7
The maximum, minimum in each focus point region and average metal temperature selection heliostat are on heat dump panel on heat dump panel
Focus point region；
B, the initial value for calculating dispensing the performance number absp_th, absp_th of selected heliostat is set as 0；
C, heliostat controller in mirror field selects a settled date from the heliostat inventory that can be called created in above-mentioned steps five
Mirror, and dispensing performance number absp_th=pi of selected heliostat is calculated, wherein pi value is the power that heliostat is provided to heat dump
Value；
D, the dispensing performance number absp_th of the selected heliostat calculated in the more above-mentioned process C of mirror field heliostat controller and suction
Hot device allows the performance number absp_step launched every time,
If the dispensing performance number absp_th < heat dump of the selected heliostat calculated allows the performance number absp_ launched every time
Step, then mirror field heliostat controller continues to repeat process C, until the performance number absp_ that heat dump allows to launch every time
Th ≮ heat dump allows the performance number absp_step launched every time；
If the performance number absp_ that heat dump allows the performance number absp_th ≮ heat dump launched to allow to launch every time every time
Step, then heliostat controller in mirror field executes process E；
E, heliostat controller in mirror field calculates performance number absp_focusL=absp_ that heat dump current residual needs to focus
The focus-absp_th and maximum allowable focus power value Adm_powerL=Adm_power-absp_th of heat dump current residual；
F, heliostat controller in mirror field needs focus power value according to the heat dump current residual calculated in above-mentioned process E, if
<=0 absp_focusL, then mirror field heliostat controller all selected heliostats into above-mentioned process C send focus command,
Focus selected heliostat；If absp_focusL > 0, mirror field heliostat controller repeats above-mentioned process A；
G, mirror field heliostat controller detects whether all heliostats for receiving instruction are completed to focus, and repeats if not completing
Process F；If the heliostat for receiving instruction is fully completed focusing, return step four continues to monitor whether heat dump needs to carry out newly
Heliostat focus scheduling, that is, have the demand for dispatching new heliostat.
A further improvement of the present invention is that: the scheduling flow that defocuses in step 8 is,
A, diapoint region of the heliostat on heat dump panel is determined, mirror field heliostat controller is according to selecting in step 7
The maximum, minimum in each diapoint region and average metal temperature selection heliostat are on heat dump panel on heat dump panel
Diapoint region；
B, calculate selected heliostat defocuses performance number absp_th, and the initial value of absp_th is set as 0；
C, heliostat controller in mirror field selects a heliostat from the heliostat inventory that can be called that above-mentioned steps five create,
And calculate selected heliostat defocuses performance number absp_th=pi, wherein pi value is the performance number that heliostat is provided to heat dump；
D, the selected heliostat calculated in the more above-mentioned process c of mirror field heliostat controller defocus performance number absp_th and inhale
The performance number absp_step_defocus that hot device allows to defocus every time,
If the performance number absp_ for defocusing performance number absp_th < heat dump and allowing to defocus every time of the selected heliostat calculated
Step_defocus, then mirror field heliostat controller continues to repeat process c, until the selected heliostat of calculating defocuses function
The performance number absp_step_defocus that rate value absp_th ≮ heat dump allows to defocus every time；
If the performance number absp_ for defocusing performance number absp_th ≮ heat dump and allowing to defocus every time of the selected heliostat calculated
Step_defocus, then heliostat controller in mirror field executes process e；
E, heliostat controller in mirror field calculates performance number absp_dfocusL=absp_ that heat dump current residual needs to defocus
dfocus-absp_th；
F, heliostat controller in mirror field defocuses performance number absp_ according to the heat dump current residual calculated in above-mentioned process e
DfocusL, if <=0 absp_dfocusL, mirror field heliostat controller all selected heliostats into above-mentioned process c
Transmission defocuses instruction, defocuses selected heliostat；If absp_dfocusL > 0, in the repetition of mirror field heliostat controller
State process a；
G, mirror field heliostat controller detects whether all heliostats for receiving instruction are completed to defocus, and repeats if not completing
Process f；If the heliostat for receiving instruction is fully completed focusings, return step sequence step 4 continue monitoring heat dump whether need into
The new heliostat of row defocuses scheduling, that is, has the demand for dispatching new heliostat.
A further improvement of the present invention is that: the number of grid that each heat dump panel divides can be width direction × height
Spending direction is 3 × 7 or 3 × 14.
A further improvement of the present invention is that: the one or more heat of heat dump back side of panel setting corresponding with each grid
Galvanic couple.
A further improvement of the present invention is that: heat dump control system is DCS control system.
Due to the adoption of the above technical scheme, beneficial effect caused by the present invention is:
Tower type solar power station heliostat dispatching method of the present invention can not only make the calculating of mirror field heliostat controller and logic
Judgement is simplified, and reliable, effectively can efficiently complete the selection and traffic control to mirror field heliostat, while in batches
Heliostat is dispatched, the heat dump as caused by scheduling is avoided to damage.
Detailed description of the invention
Fig. 1 is the tower mirror field heliostat operation schematic diagram of the present invention；
Fig. 2 is heat dump panel expanded schematic diagram of the present invention；
Fig. 3 is the heliostat dispatching method flow chart under present invention focusing operating condition；
Fig. 4 is the dispatching method flow chart that the present invention defocuses heliostat under operating condition；
Wherein, 1, heliostat, 2, heat dump, 3, heat absorption tower, 4, heat dump panel.
Specific embodiment
During photo-thermal power station operates normally, when heat dump load variations or mirror field efficiency change, need to mirror
Field heliostat is focused or defocuses adjustment to meet the requirement of heat dump thermal power, the scheduling of tower type solar power station heliostat
Method can make heliostat that flare is accurately directed toward to the different target point region of different heat dump panels, such as Fig. 3 and figure
4, this method includes the heliostat dispatching method focused under operating condition and defocuses the dispatching method of heliostat under operating condition, specifically include with
Lower step,
Step 1: by heat dump panel gridding, as shown in Fig. 2, the number of grid that each heat dump panel divides can be width
Spending direction × short transverse is 3 × 7 or 3 × 14, and heat dump panel number of grid is finally by the size of heat dump, the ruler of heliostat
The parameters such as very little and Jing Chang scale are determining, the one or more thermocouples of heat dump back side of panel setting corresponding with each grid,
Each grid is a target point region on heat dump panel, and target point region is focus point region or diapoint region；
Step 2: setting initial value, sets heat sink set value of the power absp_sp, simultaneously in heat dump control system
One interior tolerance T and outer tolerance T0 is set to set value of the power absp_sp is absorbed, heat dump minimum power permissible value is
Absp_sp-T, heat dump maximum power permissible value are absp_sp+T0, and the performance number that heat dump allows to launch every time or defocus is
Absp_step, heat dump control system are DCS control system；
Step 3: calculating heat dump currently absorbs performance number absp, heat dump control system according to heat dump import temperature of molten salt,
Outlet temperature of molten salt, heat dump import flow rate of molten salt and heat dump efficiency calculation go out to be worked as by the heat dump that mirror field heliostat provides
Preceding absorption performance number absp, while heat dump control system carries out data biography by communication mode and mirror field heliostat controller
It send；
Step 4: determining the operating condition and heliostat scheduling type of heliostat, heliostat is in the case where focusing operating condition, the mirror field settled date
Mirror controller compares heat dump, and currently to absorb the relationship that performance number absp and heat dump minimum power permissible value are absp_sp-T true
The fixed focusing scheduling for whether carrying out heliostat, for heliostat in the case where defocusing operating condition, it is current that mirror field heliostat controller compares heat dump
Performance number absp and heat dump maximum power permissible value is absorbed to determine whether to carry out dissipating for heliostat for the relationship of absp_sp+T0
Coke scheduling；
Step 5: the heliostat inventory that creation can call, it is determined whether have the heliostat of available focusing or defocusing, heliostat is clear
Singly include all heliostats under not running operating condition, the settled date cannot be formed if the heliostat that focusing or defocusing not can be used
Mirror inventory；
Step 6: calculating, heat dump need to increase performance number newly or heat dump minimum defocuses performance number, mirror field heliostat controller according to
Heat dump set value of the power absp_sp, heat dump currently absorb power absp, interior tolerance T and outer tolerance T0 and step
The heliostat operating condition and heliostat scheduling type determined in four, heat dump is calculated when heliostat focuses scheduling need to increase power newly
Heat dump minimum is calculated when value absp_focus=(absp_sp+T0)-absp or heliostat defocus scheduling defocuses performance number absp_
dfocus=absp-(absp_sp-T)；
Step 7: newly performance number need to be increased the heat dump being calculated or heat dump minimum defocuses performance number and is assigned to different suctions
On hot device panel, mirror field heliostat controller is according to each panel maximum power permissible value Adm_power of heat dump and heat dump
Current absorption performance number absp need to increase heat dump newly performance number absp_focus or heat dump minimum defocuses performance number absp_
Dfocus is assigned on different heat dump panels；
Step 8: mirror field heliostat controller is according to the heat dump panel for distributing focusing or defocusing power in step 7, at random
Heliostat is chosen from the heliostat inventory in step 5, completes gathering in batches for heliostat according to focusing or defocusing scheduling flow
Coke defocuses scheduling.
It is fixed when heat dump currently absorbs performance number absp < heat dump minimum power permissible value absp_sp-T in step 4
Solar eyepiece needs are focused scheduling, otherwise the energy that current mirror field heliostat provides can satisfy requirement, not need to heat dump
Dispatch new heliostat；And the focusing scheduling flow in step 8 is,
A, focus point region of the heliostat on heat dump panel is determined, mirror field heliostat controller is according to selecting in step 7
The maximum, minimum in each focus point region and average metal temperature selection heliostat are on heat dump panel on heat dump panel
Focus point region；
B, the initial value for calculating dispensing the performance number absp_th, absp_th of selected heliostat is set as 0；
C, heliostat controller in mirror field selects a settled date from the heliostat inventory that can be called created in above-mentioned steps five
Mirror, and dispensing performance number absp_th=pi of selected heliostat is calculated, wherein pi value is the power that heliostat is provided to heat dump
Value；
D, the dispensing performance number absp_th of the selected heliostat calculated in the more above-mentioned process C of mirror field heliostat controller and suction
Hot device allows the performance number absp_step launched every time,
If the dispensing performance number absp_th < heat dump of the selected heliostat calculated allows the performance number absp_ launched every time
Step, then mirror field heliostat controller continues to repeat process C, until the performance number absp_ that heat dump allows to launch every time
Th ≮ heat dump allows the performance number absp_step launched every time；
If the performance number absp_ that heat dump allows the performance number absp_th ≮ heat dump launched to allow to launch every time every time
Step, then heliostat controller in mirror field executes process E；
E, heliostat controller in mirror field calculates performance number absp_focusL=absp_ that heat dump current residual needs to focus
The focus-absp_th and maximum allowable focus power value Adm_powerL=Adm_power-absp_th of heat dump current residual；
F, heliostat controller in mirror field needs focus power value according to the heat dump current residual calculated in above-mentioned process E, if
<=0 absp_focusL, then mirror field heliostat controller all selected heliostats into above-mentioned process C send focus command,
Focus selected heliostat；If absp_focusL > 0, mirror field heliostat controller repeats above-mentioned process A；
G, mirror field heliostat controller detects whether all heliostats for receiving instruction are completed to focus, and repeats if not completing
Process F；If the heliostat for receiving instruction is fully completed focusing, return step four continues to monitor whether heat dump needs to carry out newly
Heliostat focus scheduling, that is, have the demand for dispatching new heliostat.
And in step 4, heat dump currently absorbs performance number absp > heat dump maximum power permissible value absp_sp+T0
When, heliostat carries out defocusing scheduling, otherwise the energy that current mirror field heliostat provides can satisfy requirement, be not required to heat absorption
Device defocuses new heliostat, and the scheduling flow that defocuses in step 8 is,
A, diapoint region of the heliostat on heat dump panel is determined, mirror field heliostat controller is according to selecting in step 7
The maximum, minimum in each diapoint region and average metal temperature selection heliostat are on heat dump panel on heat dump panel
Diapoint region；
B, calculate selected heliostat defocuses performance number absp_th, and the initial value of absp_th is set as 0；
C, heliostat controller in mirror field selects a heliostat from the heliostat inventory that can be called that above-mentioned steps five create,
And calculate selected heliostat defocuses performance number absp_th=pi, wherein pi value is the performance number that heliostat is provided to heat dump；
D, the selected heliostat calculated in the more above-mentioned process c of mirror field heliostat controller defocus performance number absp_th and inhale
The performance number absp_step_defocus that hot device allows to defocus every time,
If the performance number absp_ for defocusing performance number absp_th < heat dump and allowing to defocus every time of the selected heliostat calculated
Step_defocus, then mirror field heliostat controller continues to repeat process c, until the selected heliostat of calculating defocuses function
The performance number absp_step_defocus that rate value absp_th ≮ heat dump allows to defocus every time；
If the performance number absp_ for defocusing performance number absp_th ≮ heat dump and allowing to defocus every time of the selected heliostat calculated
Step_defocus, then heliostat controller in mirror field executes process e；
E, heliostat controller in mirror field calculates performance number absp_dfocusL=absp_ that heat dump current residual needs to defocus
dfocus-absp_th；
F, heliostat controller in mirror field defocuses performance number absp_ according to the heat dump current residual calculated in above-mentioned process e
DfocusL, if <=0 absp_dfocusL, mirror field heliostat controller all selected heliostats into above-mentioned process c
Transmission defocuses instruction, defocuses selected heliostat；If absp_dfocusL > 0, in the repetition of mirror field heliostat controller
State process a；
G, mirror field heliostat controller detects whether all heliostats for receiving instruction are completed to defocus, and repeats if not completing
Process f；If the heliostat for receiving instruction is fully completed focusings, return step sequence step 4 continue monitoring heat dump whether need into
The new heliostat of row defocuses scheduling, that is, has the demand for dispatching new heliostat.
Claims (7)
1. tower type solar power station heliostat dispatching method, it is characterised in that: include the following steps,
Step 1: each grid is a target point region, target point area on heat dump panel by heat dump panel gridding
Domain is focus point region or diapoint region；
Step 2: setting initial value, sets heat sink set value of the power absp_sp, simultaneously in heat dump control system
One interior tolerance T and outer tolerance T0 is set to set value of the power absp_sp is absorbed, heat dump minimum power permissible value is
Absp_sp-T, heat dump maximum power permissible value are absp_sp+T0, and the performance number that heat dump allows to launch every time or defocus is
absp_step；
Step 3: calculating heat dump currently absorbs performance number absp, heat dump control system according to heat dump import temperature of molten salt,
Outlet temperature of molten salt, heat dump import flow rate of molten salt and heat dump efficiency calculation go out to be worked as by the heat dump that mirror field heliostat provides
Preceding absorption performance number absp, while heat dump control system carries out data biography by communication mode and mirror field heliostat controller
It send；
Step 4: determining the operating condition and heliostat scheduling type of heliostat, heliostat is in the case where focusing operating condition, the mirror field settled date
Mirror controller compares heat dump, and currently to absorb the relationship that performance number absp and heat dump minimum power permissible value are absp_sp-T true
The fixed focusing scheduling for whether carrying out heliostat, for heliostat in the case where defocusing operating condition, it is current that mirror field heliostat controller compares heat dump
Performance number absp and heat dump maximum power permissible value is absorbed to determine whether to carry out dissipating for heliostat for the relationship of absp_sp+T0
Coke scheduling；
Step 5: the heliostat inventory that creation can call, it is determined whether have the heliostat of available focusing or defocusing, heliostat is clear
Singly include all heliostats under not running operating condition, the settled date cannot be formed if the heliostat that focusing or defocusing not can be used
Mirror inventory；
Step 6: calculating, heat dump need to increase performance number newly or heat dump minimum defocuses performance number, mirror field heliostat controller according to
Heat dump set value of the power absp_sp, heat dump currently absorb power absp, interior tolerance T and outer tolerance T0 and step
The heliostat operating condition and heliostat scheduling type determined in four, heat dump is calculated when heliostat focuses scheduling need to increase power newly
Heat dump minimum is calculated when value absp_focus=(absp_sp+T0)-absp or heliostat defocus scheduling defocuses performance number absp_
dfocus=absp-(absp_sp-T)；
Step 7: newly performance number need to be increased the heat dump being calculated or heat dump minimum defocuses performance number and is assigned to different suctions
On hot device panel, mirror field heliostat controller is according to each panel maximum power permissible value Adm_power of heat dump and heat dump
Current absorption performance number absp need to increase heat dump newly performance number absp_focus or heat dump minimum defocuses performance number absp_
Dfocus is assigned on different heat dump panels；
Step 8: mirror field heliostat controller is according to the heat dump panel for distributing focusing or defocusing power in step 7, at random
Heliostat is chosen from the heliostat inventory in step 5, completes gathering in batches for heliostat according to focusing or defocusing scheduling flow
Coke defocuses scheduling.
2. tower type solar power station heliostat dispatching method according to claim 1, it is characterised in that: in step 4,
When heat dump currently absorbs performance number absp < heat dump minimum power permissible value absp_sp-T, heliostat needs are focused
Scheduling, on the contrary the energy that current mirror field heliostat provides can satisfy requirement, not need to dispatch new heliostat to heat dump；When
When preceding heat sink performance number absp > heat dump maximum power permissible value absp_sp+T0, heliostat carries out defocusing tune
Degree, on the contrary the energy that current mirror field heliostat provides can satisfy requirement, be not required to defocus new heliostat to heat dump.
3. tower type solar power station heliostat dispatching method according to claim 2, it is characterised in that: in step 8
Focusing scheduling flow is,
A, focus point region of the heliostat on heat dump panel is determined, mirror field heliostat controller is according to selecting in step 7
The maximum, minimum in each focus point region and average metal temperature selection heliostat are on heat dump panel on heat dump panel
Focus point region；
B, the initial value for calculating dispensing the performance number absp_th, absp_th of selected heliostat is set as 0；
C, heliostat controller in mirror field selects a settled date from the heliostat inventory that can be called created in above-mentioned steps five
Mirror, and dispensing performance number absp_th=pi of selected heliostat is calculated, wherein pi value is the power that heliostat is provided to heat dump
Value；
D, the dispensing performance number absp_th of the selected heliostat calculated in the more above-mentioned process C of mirror field heliostat controller and suction
Hot device allows the performance number absp_step launched every time,
If the dispensing performance number absp_th < heat dump of the selected heliostat calculated allows the performance number absp_ launched every time
Step, then mirror field heliostat controller continues to repeat process C, until the performance number absp_ that heat dump allows to launch every time
Th ≮ heat dump allows the performance number absp_step launched every time；
If the performance number absp_ that heat dump allows the performance number absp_th ≮ heat dump launched to allow to launch every time every time
Step, then heliostat controller in mirror field executes process E；
E, heliostat controller in mirror field calculates performance number absp_focusL=absp_ that heat dump current residual needs to focus
The focus-absp_th and maximum allowable focus power value Adm_powerL=Adm_power-absp_th of heat dump current residual；
F, heliostat controller in mirror field needs focus power value according to the heat dump current residual calculated in above-mentioned process E, if
<=0 absp_focusL, then mirror field heliostat controller all selected heliostats into above-mentioned process C send focus command,
Focus selected heliostat；If absp_focusL > 0, mirror field heliostat controller repeats above-mentioned process A；
G, mirror field heliostat controller detects whether all heliostats for receiving instruction are completed to focus, and repeats if not completing
Process F；If the heliostat for receiving instruction is fully completed focusing, return step four continues to monitor whether heat dump needs to carry out newly
Heliostat focus scheduling, that is, have the demand for dispatching new heliostat.
4. tower type solar power station heliostat dispatching method according to claim 1, it is characterised in that: in step 8
Defocusing scheduling flow is,
A, diapoint region of the heliostat on heat dump panel is determined, mirror field heliostat controller is according to selecting in step 7
The maximum, minimum in each diapoint region and average metal temperature selection heliostat are on heat dump panel on heat dump panel
Diapoint region；
B, calculate selected heliostat defocuses performance number absp_th, and the initial value of absp_th is set as 0；
C, heliostat controller in mirror field selects a heliostat from the heliostat inventory that can be called that above-mentioned steps five create,
And calculate selected heliostat defocuses performance number absp_th=pi, wherein pi value is the performance number that heliostat is provided to heat dump；
D, the selected heliostat calculated in the more above-mentioned process c of mirror field heliostat controller defocus performance number absp_th and inhale
The performance number absp_step_defocus that hot device allows to defocus every time,
If the performance number absp_ for defocusing performance number absp_th < heat dump and allowing to defocus every time of the selected heliostat calculated
Step_defocus, then mirror field heliostat controller continues to repeat process c, until the selected heliostat of calculating defocuses function
The performance number absp_step_defocus that rate value absp_th ≮ heat dump allows to defocus every time；
If the performance number absp_ for defocusing performance number absp_th ≮ heat dump and allowing to defocus every time of the selected heliostat calculated
Step_defocus, then heliostat controller in mirror field executes process e；
E, heliostat controller in mirror field calculates performance number absp_dfocusL=absp_ that heat dump current residual needs to defocus
dfocus-absp_th；
F, heliostat controller in mirror field defocuses performance number absp_ according to the heat dump current residual calculated in above-mentioned process e
DfocusL, if <=0 absp_dfocusL, mirror field heliostat controller all selected heliostats into above-mentioned process c
Transmission defocuses instruction, defocuses selected heliostat；If absp_dfocusL > 0, in the repetition of mirror field heliostat controller
State process a；
G, mirror field heliostat controller detects whether all heliostats for receiving instruction are completed to defocus, and repeats if not completing
Process f；If the heliostat for receiving instruction is fully completed focusings, return step sequence step 4 continue monitoring heat dump whether need into
The new heliostat of row defocuses scheduling, that is, has the demand for dispatching new heliostat.
5. tower type solar power station heliostat dispatching method according to claim 1, it is characterised in that: each heat dump
It is 3 × 7 or 3 × 14 that the number of grid that panel divides, which can be width direction × short transverse,.
6. tower type solar power station heliostat dispatching method according to claim 1, it is characterised in that: heat dump panel
The one or more thermocouples of back side setting corresponding with each grid.
7. tower type solar power station heliostat dispatching method according to claim 1, it is characterised in that: heat dump control
System is DCS control system.
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