CN109829654A - A kind of mirror field dispatching method of matching heat dump operation - Google Patents

A kind of mirror field dispatching method of matching heat dump operation Download PDF

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Publication number
CN109829654A
CN109829654A CN201910114543.9A CN201910114543A CN109829654A CN 109829654 A CN109829654 A CN 109829654A CN 201910114543 A CN201910114543 A CN 201910114543A CN 109829654 A CN109829654 A CN 109829654A
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China
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heliostat
panel
heat absorption
heat
energy
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CN109829654B (en
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金建祥
徐能
宓霄凌
李建华
杨都堂
易富兴
颜明明
李晓波
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Cosin Solar Technology Co Ltd
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Zhejiang Supcon Solar Energy Technology Co Ltd
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Abstract

The invention discloses a kind of mirror field dispatching methods of matching heat dump operation, including acquiring basic data, when i-th of heat absorption panel is abnormal panel, then the abnormal panel is handled, when i-th of heat absorption panel is positive normal panel, according to the operating status of heat dump, if i-th of heat absorption panel expectation increases energy, the quantity for increasing heliostat is then calculated, and judges whether to need to adjust the quantity of increased heliostat;If i-th of heat absorption panel expectation reduces energy, the quantity for reducing heliostat is calculated, and judge whether to need to adjust the quantity of reduced heliostat.This method can be different according to heat dump operating status, adjust the quantity of heliostat, plugging occur in heat dump or when booster, the panel that plugging or booster occurs separately is run with normal panel, light resource will not be wasted.

Description

A kind of mirror field dispatching method of matching heat dump operation
Technical field
The invention belongs to heliostat mirror field Scheduling Design field more particularly to a kind of Jing Chang scheduling of matching heat dump operation Method.
Background technique
Heat dump as one of equipment vital in tower-type solar thermal power generating system, heat dump it is safe and stable, Efficient operation is entire power plant safety, stabilization, efficient basis, is one of the key technology of protection power station economic benefit.
Heat dump at least needs to undergo primary preheating daily, into salt, heating, normal operation, the overall process for dredging salt, when carrying out cloud It further include carrying out cloud operation etc..Special operation further includes heat dump plugging processing, booster processing etc..In heat dump warm-up phase, Due to flowing through in heat dump without any medium, heat dump, which is equivalent to, is in empty burning state, and the energy of projection does not have Absorption of Medium And carry away, if pre- thermal projection energy is uneven or projection energy is excessive, it may cause heat dump damage;When carrying out cloud, it is The safe operation for guaranteeing heat dump, the heliostat for generally requiring to reduce projection after preventing cloud from walking suddenly cause to project suction Energy on hot device rises sharply.
All it is that power station is out of service under normal circumstances when heat dump runs generation plugging or booster, waits heat dump dimension After the completion of shield, maintenance, then heat dump is restarted, then power station generates electricity.Chinese patent application publication No. CN106124065A, date of publication are on November 16th, 2016, and entitled " the thermal tower type heat dump plugging based on infrared measurement of temperature is visited Survey reply control system ", a kind of thermal tower type heat dump plugging detection reply control system is disclosed, plugging occurs in heat dump Or when booster, need to keep power station out of service, salt dissolving or maintenance process are individually carried out to the panel that plugging or booster occurs, handled After the completion, the panel of restarting heat dump, non-plugging or booster cannot normally project energy, therefore, in salt dissolving or repair Cheng Zhong will cause a large amount of light wasting of resources.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of mirror field dispatching methods of matching heat dump operation, being capable of basis The different operating status of heat dump, adjusts the quantity of heliostat, and when plugging or booster occur for heat dump, plugging or booster occurs Panel separately run with normal panel, light resource will not be wasted.
To solve the above problems, the technical solution of the present invention is as follows:
A kind of mirror field dispatching method of matching heat dump operation, includes the following steps:
S1: acquisition basic data, the basic data include heliostat quantity information, heliostat mirror-reflection area, Specular reflectivity, Jing Chang operation table, the mirror surface cleaning degree of heliostat, heliostat list and the suction of the heat dump of heliostat The number of hot panel;
S2: select i-th of heat absorption panel as heat absorption panel to be detected;
S3: judging whether the heat absorption panel to be detected is abnormal panel, if so, then to the abnormal panel at Reason, and make i=i+1, enter step S4;
If not, entering step S4;It, then will be described if the abnormal panel is panel when plugging occurs for the heat dump Abnormal panel carries out salt dissolving processing, after the completion of salt dissolving, the abnormal panel is revised as normal panel, remaining panel is normally transported Row;If the abnormal panel is panel when booster occurs for the heat dump, then handled again after system-down, lap Plate operates normally;
Wherein, the abnormal panel is panel when plugging or booster occur for the heat dump, and the normal panel is The panel when heat dump works normally;
S4: judging whether i is greater than the maximum number of the heat absorption panel, if so, the state of heliostat list is then updated, knot Beam Jing Chang scheduling, if not, entering step S5;
S5: panel expectation of absorbing heat as described in i-th increases energy, then enters step A1, and the step A1 increases to calculate Add the quantity of the heliostat;Panel expectation of absorbing heat as described in i-th reduces energy, then enters step B1, and the step B1 is used To calculate the quantity for reducing the heliostat;
A1 includes:
A101: it according to the operating status of the heat dump, calculates i-th of heat absorption panel and it is expected increased ENERGY E0
A102: the quantity N for the heliostat not projected in i-th of heat absorption panel corresponding region is calculated, according to E0 And the average energy E of separate unit heliostatavg, the quantity n for it is expected the increased heliostat is calculated,n≤N;
A103: random alignment is carried out to the N number of heliostat not projected, chooses the heliostat of any position To originate heliostat, and the quantity n for it is expected the increased heliostat is selected by positive sequence or backward;
A104: according to the quantity n for the heliostat selected, practical increased ENERGY E is calculated1,Enter step S6;
B1 includes:
B101: it according to the operating status of the heat dump, calculates i-th of heat absorption panel and it is expected reduced ENERGY E '0
B102: calculating the quantity N ' of the heliostat projected in i-th of heat absorption panel corresponding region, according to E’0And EavgThe quantity n ' for the heliostat that expectation is reduced is calculated,n'≤N';
B103: the heliostat a to the N ' projected carries out random alignment, chooses the settled date of any position Mirror is the starting heliostat, and the quantity n ' for the heliostat that the expectation is reduced is selected by positive sequence or backward;
B104: according to the quantity n ' for the heliostat selected, the ENERGY E of practical reduction is calculated '1,Enter step S7;
S6: judging whether to need to adjust the quantity n of the increased heliostat, if desired, after then adjusting, i=i+1, S2 is entered step, is not needed such as, then i=i+1, enters step S2;
S7: judging whether to need to adjust the quantity n ' of the heliostat of the reduction, if desired, after then adjusting, i=i+1, S2 is entered step, is not needed such as, then i=i+1, enters step S2;
Wherein, i is the number of the heat absorption panel, and η (k) is n selected in i-th of heat absorption panel corresponding region The efficiency value of heliostat is not projected, and η ' (k), which is that n ' selected in i-th of heat absorption panel corresponding region is a, has projected heliostat Efficiency value, A be separate unit heliostat reflective surface area, DNI (t) be current time direct solar radiation value, t is current time, ηavgFor the heliostat average efficiency value in heat absorption panel corresponding region described in i-th of current time.
The mirror field dispatching method for the matching heat dump operation that one embodiment of the invention provides, the step S6 include:
S601:E1With E0It compares, calculates deviation delta E;
S602: Δ E is less than or equal to the ceiling capacity E of the separate unit heliostat at current timemax, Emax=A × DNI (t) × ηmax, then meet the requirement for increasing energy, make i=i+1, and return to the step S2;
S603: Δ E is greater than the E at current timemax
Such as E1Greater than E0, then the M heliostats are randomly choosed in n to be projected heliostats,And modifying its state is non-selected projection heliostat, and Δ E is made to be less than the E at current timemax, i=i+1, and return Return the step S2;
Such as E1Less than E0, then heliostat described in m is randomly choosed in the N-n not the projected heliostats,And modifying its state is heliostat to be projected, and Δ E is made to be less than the E at current timemax, i=i+1, and return to institute State step S2;
Wherein, ηmaxFor current time whole area field heliostat maximum efficiency value.
The mirror field dispatching method for the matching heat dump operation that one embodiment of the invention provides, the step S7 include:
S701:E '1With E '0It compares, calculates deviation delta E ';
S702: Δ E ' is less than or equal to the E at current timemax, then meet the requirement for reducing energy, make i=i+1, and return The step S2;
S703: Δ E ' is greater than the E at current timemax
Such as E '1Greater than E '0, then a heliostat of M ' is randomly choosed in a heliostat of n ' to be removed,And modify its state and remove heliostat to be non-selected, so that Δ E ' is less than the E at current timemax, i=i+1, And return to the step S2;
Such as E '1Less than E '0, then a heliostat of m ' is randomly choosed in a heliostat of N '-n ' projected,And modifying its state is heliostat to be removed, and Δ E ' is made to be less than the E at current timemax, i=i+1, and return Return the step S2.
The mirror field dispatching method for the matching heat dump operation that one embodiment of the invention provides, sets at least one described suction Hot panel is the abnormal panel.
The mirror field dispatching method for the matching heat dump operation that one embodiment of the invention provides, the heliostat mirror field include At least two different types of heliostats, and can define the priority of adjustment heliostat.
The present invention due to using the technology described above, makes it have the following advantages that and actively imitate compared with prior art Fruit:
1) the mirror field dispatching method for the matching heat dump operation that one embodiment of the invention provides judges heat-absorbent surface to be detected Whether plate is abnormal panel, if so, then handling abnormal panel, if not, judging that i-th of heat absorption panel expectation increases energy Amount or reduction energy, such as expectation increase energy, then calculate the quantity for needing increased heliostat, then judge whether to need to adjust The quantity of whole increased heliostat, does not need such as to adjust, then i+1 heat absorption panel is judged, until all heat absorption panels adjust It completes;It such as needs to adjust, is then adjusted, i+1 heat absorption panel is judged after adjustment, until all heat absorption panels have adjusted At;Such as it is expected to reduce energy, then calculates the quantity for needing reduced heliostat, then judge whether to need to adjust the reduced settled date The quantity of mirror, does not need such as to adjust, then judges i+1 heat absorption panel, until the adjustment of all heat absorption panels is completed;It such as needs to adjust It is whole, then it is adjusted, i+1 heat absorption panel is judged after adjustment, until the adjustment of all heat absorption panels is completed.Matching heat absorption Device operation mirror field dispatching method can be different according to heat dump operating status, adjust the quantity of heliostat, heat dump send out When raw plugging or booster, the panel that plugging or booster occurs separately is run with normal panel, will not waste light resource.
2) the mirror field dispatching method for the matching heat dump operation that one embodiment of the invention provides is according to the operation of heat dump State, preheating, into salt, heating, operate normally, carry out cloud processing, dredge salt etc. durings, increase or decrease the heliostat of projection, Guarantee the safe and reliable operation of heat dump.
3) at least one abnormal panel is set in one embodiment of the invention, the heat absorption panel that plugging or booster occurs is left 1~2 heat absorption panel of right two sides is also set to abnormal panel, can prevent the light at left and right sides of the abnormal panel in heat dump Spot overflows to abnormal panel, and abnormal panel booster is avoided to generate more serious consequence.
Detailed description of the invention
Fig. 1 is the flow chart for the mirror field dispatching method that a kind of matching heat dump of the invention is run;
Fig. 2 is the flow chart for the quantity that calculating of the invention increases heliostat;
Fig. 3 is the flow chart for the quantity that calculating of the invention reduces heliostat;
Fig. 4 is of the invention to judge whether to need to adjust the flow chart of the quantity of increased heliostat;
Fig. 5 is of the invention to judge whether to need to adjust the flow chart of the quantity of reduced heliostat;
Fig. 6 is the test mirror field layout drawing of one embodiment of the invention;
Fig. 7 is the abnormal panel schematic diagram of one embodiment of the invention;
Fig. 8 is that the abnormal panel energization amount of one embodiment of the invention selects mirror test schematic diagram;
Fig. 9 is the hot panel energization amount Jing Chang scheduling of single suction of one embodiment of the invention, and heliostat point preferentially selects mirror for the first time Test schematic diagram;
Figure 10 is the hot panel energization amount Jing Chang scheduling of single suction of one embodiment of the invention, and heliostat point preferentially selects second of mirror Test schematic diagram;
Figure 11 is the hot panel energization amount Jing Chang scheduling of single suction of one embodiment of the invention, and heliostat point preferentially selects mirror third time Test schematic diagram;
Figure 12 is that the full heat absorption panel of one embodiment of the invention subtracts energy Jing Chang scheduling, and heliostat selects mirror first regardless of preferential Secondary test schematic diagram;
Figure 13 is that the full heat absorption panel of one embodiment of the invention subtracts energy Jing Chang scheduling, and heliostat selects mirror second regardless of preferential Secondary test schematic diagram;
Figure 14 is that the full heat absorption panel of one embodiment of the invention subtracts energy Jing Chang scheduling, and heliostat selects mirror third regardless of preferential Secondary test schematic diagram;
Figure 15 is that the full heat absorption panel of one embodiment of the invention subtracts energy Jing Chang scheduling, and heliostat selects mirror the 4th regardless of preferential Secondary test schematic diagram.
Description of symbols:
1: the first seed type heliostat;2: second type heliostats;3: heat dump;4: abnormal panel.
Specific embodiment
Below in conjunction with the drawings and specific embodiments to a kind of mirror field dispatching party of matching heat dump operation proposed by the present invention Method is described in further detail.According to following explanation and claims, advantages and features of the invention will be become apparent from.
Referring to Fig. 1 and Fig. 2, a kind of mirror field dispatching method that matching heat dump 3 is run includes the following steps:
S1: acquisition basic data, basic data includes heliostat quantity information, the mirror-reflection area of heliostat, settled date The specular reflectivity of mirror, Jing Chang run the heat absorption panel of table, the mirror surface cleaning degree of heliostat, heliostat list and heat dump 3 Number;
S2: select i-th of heat absorption panel as heat absorption panel to be detected;
S3: judging whether heat absorption panel to be detected is abnormal panel 4, if so, then abnormal panel 4 is handled, and Make i=i+1, enters step S4;
If not, entering step S4;If abnormal panel 4 is panel when plugging occurs for heat dump 3, then by abnormal panel 4 It carries out salt dissolving processing and abnormal panel 4 is revised as normal panel (not marking in figure), remaining panel is normal after the completion of salt dissolving Operation;If abnormal panel 4 is panel when booster occurs for heat dump 3, then handled again after system-down, remaining panel is just Often operation;
Wherein, abnormal panel 4 is panel when plugging or booster occur for heat dump 3, and normal panel is that heat dump 3 is normal Panel when work;
S4: judging whether i is greater than the maximum number of heat absorption panel, if so, the state of heliostat list is then updated, end mirror Field scheduling, if not, entering step S5;
S5: if i-th of heat absorption panel expectation increases energy, then A1 is entered step, step A1 is to calculate increase heliostat Quantity;If i-th of heat absorption panel expectation reduces energy, then B1 is entered step, step B1 reduces the number of heliostat to calculate Amount;
A1 includes:
A101: it according to the operating status of heat dump 3, calculates i-th of heat absorption panel and it is expected increased ENERGY E0
A102: the quantity N for the heliostat not projected in i-th of heat absorption panel corresponding region is calculated, according to E0And separate unit The average energy E of heliostatavg, the quantity n for it is expected increased heliostat is calculated,n≤N;
A103: carrying out random alignment to the N number of heliostat not projected, chooses the heliostat of any position as the starting settled date Mirror, and the quantity n for it is expected increased heliostat is selected by positive sequence or backward;
A104: according to the quantity n for the heliostat selected, practical increased ENERGY E is calculated1,Enter step S6;
B1 includes:
B101: it according to the operating status of heat dump 3, calculates i-th of heat absorption panel and it is expected reduced ENERGY E '0
B102: the quantity N ' of the heliostat projected in i-th of heat absorption panel corresponding region is calculated, according to E '0And Eavg The quantity n ' for it is expected reduced heliostat is calculated,n'≤N';
B103: carrying out random alignment to a heliostat of the N ' projected, chooses the heliostat of any position as the starting settled date Mirror, and select by positive sequence or backward the quantity n ' of the heliostat of desired reduction;
B104: according to the quantity n ' for the heliostat selected, the ENERGY E of practical reduction is calculated '1,Enter step S7;
S6: judging whether to need to adjust the quantity n of increased heliostat, if desired, after then adjusting, i=i+1 enters Step S2, does not need such as, then i=i+1, enters step S2;
S7: judging whether to need to adjust the quantity n ' of reduced heliostat, if desired, after then adjusting, i=i+1 enters Step S2, does not need such as, then i=i+1, enters step S2;
Wherein, i is the number of heat absorption panel, and η (k) is that a do not project of n selected in i-th of heat absorption panel corresponding region is determined The efficiency value of solar eyepiece, η ' (k) are a efficiency value for having projected heliostat of n ' selected in i-th of heat absorption panel corresponding region, and A is Separate unit heliostat reflective surface area, DNI (t) are the direct solar radiation value at current time, and t is current time, ηavgFor current time Heliostat average efficiency value in i-th of heat absorption panel corresponding region.
It is appreciated that the mirror field dispatching method that matching heat dump 3 provided in this embodiment is run judges heat-absorbent surface to be detected Whether plate is abnormal panel 4, if so, then handling abnormal panel 4, if not, judging that i-th of heat absorption panel expectation increases Energy still reduces energy, and such as expectation increases energy, then calculates the quantity for needing increased heliostat, then judge whether to need The quantity for adjusting increased heliostat, does not need such as to adjust, then i+1 heat absorption panel is judged, until all heat absorption panel tune Whole completion;It such as needs to adjust, is then adjusted, i+1 heat absorption panel is judged after adjustment, until all heat absorption panels adjust It completes;Such as it is expected to reduce energy, then calculate the quantity for needing reduced heliostat, then judges whether to need to adjust determining for reduction The quantity of solar eyepiece, does not need such as to adjust, then judges i+1 heat absorption panel, until the adjustment of all heat absorption panels is completed;As needed Adjustment, then be adjusted, and i+1 heat absorption panel is judged after adjustment, until the adjustment of all heat absorption panels is completed.The matching is inhaled The mirror field dispatching method that hot device 3 is run can be different according to heat dump 3 operating status, adjust the quantity of heliostat, absorbing heat When plugging or booster occur for device 3, the panel that plugging or booster occurs separately is run with normal panel, will not waste light resource.
In general, 3 operating status of heat dump include preheating, into salt, heating, normal operation, dredge salt, come cloud operation etc., this reality The different conditions that the method in example is run according to heat dump 3 are applied, i-th piece of heat absorption panel is calculated and it is expected the energy increased or decreased. The mirror field dispatching method that matching heat dump 3 provided in this embodiment is run according to the operating status of heat dump 3, preheating, into salt, During heating up, operate normally, carrying out cloud processing, dredge salt etc., the heliostat of projection is increased or decreased, guarantees the safety of heat dump 3 Reliability service.
Further, include: with continued reference to Fig. 3, the step S6
S601:E1With E0It compares, calculates deviation delta E;
S602: Δ E is less than or equal to the ceiling capacity E of the separate unit heliostat at current timemax, Emax=A × DNI (t) × ηmax, then meet the requirement for increasing energy, make i=i+1, and return step S2;
S603: Δ E is greater than the E at current timemax
Such as E1Greater than E0, then M heliostat is randomly choosed in n heliostat to be projected,And it modifies Its state is non-selected projection heliostat, and Δ E is made to be less than the E at current timemax, i=i+1, and return step S2;
Such as E1Less than E0, then m heliostat is randomly choosed in the N-n heliostat not projected,And it modifies Its state is heliostat to be projected, and Δ E is made to be less than the E at current timemax, i=i+1, and return step S2;
Wherein, ηmaxFor current time whole area field heliostat maximum efficiency value.
Step S7 includes:
S701:E '1With E '0It compares, calculates deviation delta E ';
S702: Δ E ' is less than or equal to the E at current timemax, then meet the requirement for reducing energy, make i=i+1, and return Step S2;
S703: Δ E ' is greater than the E at current timemax
Such as E '1Greater than E '0, then a heliostat of M ' is randomly choosed in a heliostat of n ' to be removed, And modify its state and remove heliostat to be non-selected, so that Δ E ' is less than the E at current timemax, i=i+1, and return step S2;
Such as E '1Less than E '0, then a heliostat of m ' is randomly choosed in a heliostat of N '-n ' projected,And modifying its state is heliostat to be removed, and Δ E ' is made to be less than the E at current timemax, i=i+1, and return Return step S2.
Further, at least one heat absorption panel is set as abnormal panel 4, ordinary circumstance, at left and right sides of abnormal panel 4 Each 1~2 heat absorption panel is also configured as abnormal panel 4, prevents the hot spot of abnormal 4 left and right sides of panel from overflowing to abnormal panel 4, Lead to abnormal 4 booster of panel.At least one abnormal panel 4 is set in the present embodiment, and the heat absorption panel of plugging or booster will occur 1~2 heat absorption panel of the left and right sides is also set to abnormal panel 4, can prevent plugging heat absorption panel or so in heat dump 3 The hot spot of two sides overflows to abnormal panel 4, and abnormal panel booster is avoided to generate more serious consequence.
Referring to Fig. 3, Fig. 3 is the test mirror field layout drawing of the present embodiment, which includes the suction of 1 set of 6 heat absorption panel Hot device 3 and 6 heliostat mirror field areas around heat absorption tower arrangement, heliostat mirror field include at least two different types of fixed Solar eyepiece, and can define the priority of adjustment heliostat, it is preferable that heliostat mirror field in the present embodiment includes the first seed type Heliostat 1 and second of type heliostat 2.
Referring next to Fig. 4 and Fig. 5, abnormal panel 4 is tested, remaining panel is full heat absorption panel energization amount, is increased Energy is 625kW.From table 1 it follows that the energy of expectation adjustment is 625kW is indicated it is expected that the energy of adjustment is positive value Increase energy.During actual test, practical increased energy meets the energy of expectation adjustment, and abnormal panel 4 is not involved in Energy adjusting.
Table 1 is that abnormal panel 4 is tested, it is expected that with actual energy tables of data (energy unit: kW)
Adjust number Expectation energy Actual energy Adjust number Expectation energy Actual energy
1 625 625
Referring to Fig. 6, Fig. 7, Fig. 8 and Fig. 9, heliostat mirror field includes at least two different types of heliostats, and be can define Adjust the priority of heliostat.Fig. 6 is the hot panel energization amount Jing Chang scheduling of single suction, and heliostat point preferentially selects mirror test schematic diagram, When individually heat absorption panel is tested, the gross energy of the first seed type heliostat 1 is about 300kW, second of type heliostat 2 Gross energy be about 350kW.It is preferential to set the first seed type heliostat 1, increases energy in three times, increases 150kW every time, filled out It fills dot and square dot is the heliostat for being selected projection.From table 2 it can be seen that the first seed type heliostat 1 is preferentially selected, The practical energy that increases meets the requirement that expectation increases adjustment energy.
Table 2 is that the first seed type heliostat 1 is preferential, it is expected that with practical adjustment energy datum table (energy unit: kW)
Adjust number Expectation energy Actual energy Adjust number Expectation energy Actual energy
1 150 148 2 150 152
3 150 156
Figure 10, Figure 11, Figure 12 and Figure 13 are that full heat absorption panel subtracts energy Jing Chang scheduling, and heliostat is regardless of preferentially selecting mirror to test Schematic diagram, when testing, the complete corresponding gross energy of panel that absorbs heat is about 2500kW, it is assumed that heliostat divides regardless of priority Energization amount, secondary reduction energy three times, the 1st increase 3000kW, the 2nd reduction 1250kW are reduced for the 3rd and 4 time 625kW, is filled dot and square dot is the heliostat for being selected projection.1st time increase 3000kW is in order to all fixed Solar eyepiece projects in heat dump 3.From table 3 it can be seen that the 1st projection whole heliostats, the 2nd time, the 3rd time and the 4th subtract The quantity of heliostat, and the heliostat quantity part priority of reduction are projected less, and the practical energy satisfaction that reduces it is expected to reduce energy Amount requires.
Table 3 is heliostat regardless of priority, it is expected that with practical adjustment energy datum table (energy unit: kW)
Adjust number Expectation energy Actual energy Adjust number Expectation energy Actual energy
1 3000 2500 2 -1250 -1251
3 -625 --626 4 -625 -623
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations Mode.Even if to the present invention, various changes can be made, if these variations belong to the model of the claims in the present invention and its equivalent technologies Within enclosing, then still fall within the protection scope of the present invention.

Claims (5)

1. a kind of mirror field dispatching method of matching heat dump operation, which comprises the steps of:
S1: acquisition basic data, the basic data includes heliostat quantity information, the mirror-reflection area of heliostat, settled date The specular reflectivity of mirror, Jing Chang run the heat-absorbent surface of table, the mirror surface cleaning degree of heliostat, heliostat list and the heat dump The number of plate;
S2: select i-th of heat absorption panel as heat absorption panel to be detected;
S3: judging whether the heat absorption panel to be detected is abnormal panel, if so, then the abnormal panel is handled, and And make i=i+1, enter step S4;
If not, entering step S4;If the abnormal panel is panel when plugging occurs for the heat dump, then by the exception Panel carries out salt dissolving processing, after the completion of salt dissolving, the abnormal panel is revised as normal panel, remaining panel operates normally; If the abnormal panel is panel when booster occurs for the heat dump, then handled again after system-down, remaining panel It operates normally;
Wherein, the abnormal panel is panel when plugging or booster occur for the heat dump, and the normal panel is described Panel when heat dump works normally;
S4: judging whether i is greater than the maximum number of the heat absorption panel, if so, the state of heliostat list is then updated, end mirror Field scheduling, if not, entering step S5;
S5: panel expectation of absorbing heat as described in i-th increases energy, then enters step A1, and the step A1 increases institute to calculate State the quantity of heliostat;Panel expectation of absorbing heat as described in i-th reduces energy, then enters step B1, the step B1 is to count Calculate the quantity for reducing the heliostat;
A1 includes:
A101: it according to the operating status of the heat dump, calculates i-th of heat absorption panel and it is expected increased ENERGY E0
A102: calculating the quantity N of the heliostat not projected in i-th of heat absorption panel corresponding region, according to E0 and The average energy E of separate unit heliostatavg, calculate the quantity n, E for it is expected the increased heliostatavg=DNI (t) × A × ηavg,n≤N;
A103: random alignment is carried out to the N number of heliostat not projected, the heliostat for choosing any position is Beginning heliostat, and the quantity n for it is expected the increased heliostat is selected by positive sequence or backward;
A104: according to the quantity n for the heliostat selected, practical increased ENERGY E is calculated1,Enter step S6;
B1 includes:
B101: it according to the operating status of the heat dump, calculates i-th of heat absorption panel and it is expected reduced ENERGY E '0
B102: the quantity N ' of the heliostat projected in i-th of heat absorption panel corresponding region is calculated, according to E '0And EavgThe quantity n ' for the heliostat that expectation is reduced is calculated,n'≤N';
B103: the heliostat a to the N ' projected carries out random alignment, and the heliostat for choosing any position is The starting heliostat, and by positive sequence or backward select it is described expectation reduce the heliostat quantity n ';
B104: according to the quantity n ' for the heliostat selected, the ENERGY E of practical reduction is calculated '1,Enter step S7;
S6: judging whether to need to adjust the quantity n of the increased heliostat, if desired, after then adjusting, i=i+1 enters Step S2, does not need such as, then i=i+1, enters step S2;
S7: judging whether to need to adjust the quantity n ' of the heliostat of the reduction, if desired, after then adjusting, i=i+1 enters Step S2, does not need such as, then i=i+1, enters step S2;
Wherein, i is the number of the heat absorption panel, and η (k) is that n selected in i-th of heat absorption panel corresponding region do not throw The efficiency value of heliostat is penetrated, η ' (k) is a effect for having projected heliostat of n ' selected in i-th of heat absorption panel corresponding region Rate value, A are separate unit heliostat reflective surface area, and DNI (t) is the direct solar radiation value at current time, and t is current time, ηavgFor Heliostat average efficiency value in heat absorption panel corresponding region described in i-th of current time.
2. the mirror field dispatching method of matching heat dump operation as described in claim 1, which is characterized in that the step S6 packet It includes:
S601:E1With E0It compares, calculates deviation delta E;
S602: Δ E is less than or equal to the ceiling capacity E of the separate unit heliostat at current timemax, Emax=A × DNI (t) × ηmax, Then meet the requirement for increasing energy, makes i=i+1, and return to the step S2;
S603: Δ E is greater than the E at current timemax
Such as E1Greater than E0, then the M heliostats are randomly choosed in n to be projected heliostats,And Modifying its state is non-selected projection heliostat, and Δ E is made to be less than the E at current timemax, i=i+1, and return to the step S2;
Such as E1Less than E0, then heliostat described in m is randomly choosed in the N-n not the projected heliostats,And Modifying its state is heliostat to be projected, and Δ E is made to be less than the E at current timemax, i=i+1, and return to the step S2;
Wherein, ηmaxFor current time whole area field heliostat maximum efficiency value.
3. the mirror field dispatching method of matching heat dump operation as described in claim 1, which is characterized in that the step S7 packet It includes:
S701:E '1With E '0It compares, calculates deviation delta E ';
S702: Δ E ' is less than or equal to the E at current timemax, then meet the requirement for reducing energy, make i=i+1, and described in return Step S2;
S703: Δ E ' is greater than the E at current timemax
Such as E '1Greater than E '0, then a heliostat of M ' is randomly choosed in a heliostat of n ' to be removed,And modify its state and remove heliostat to be non-selected, so that Δ E ' is less than the E at current timemax, i=i+1, and Return to the step S2;
Such as E '1Less than E '0, then a heliostat of m ' is randomly choosed in a heliostat of N '-n ' projected,And modifying its state is heliostat to be removed, and Δ E ' is made to be less than the E at current timemax, i=i+1, and return Return the step S2.
4. the mirror field dispatching method of matching heat dump operation as described in claim 1, which is characterized in that set at least one institute Stating heat absorption panel is the abnormal panel.
5. the mirror field dispatching method of matching heat dump operation as described in claim 1, which is characterized in that the heliostat mirror field Including at least two different types of heliostats, and it can define the priority of adjustment heliostat.
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