CN105607239A - Segmental-type isocandela reflection condenser and design method therefor - Google Patents

Abstract

The invention belongs to the technical field of lenses and particularly relates to a segmental-type isocandela reflection condenser, comprising a plurality of plane condenser units which are connected in order. The plane condenser unit located at the middle is parallel with the horizontal plane and is set as a reference unit. The plane condenser units at the right end of the reference unit have different inclination angles, and the plane condenser units at the left end of the reference unit have different inclination angles. Compared with the prior art, the segmental-type isocandela reflection condenser of the invention is designed in the segmental manner and allows uniform reflection of condensed light. It is possible to adaptively design the locating position of the reflection condenser with the highest solar energy utilization efficiency under the current condition after the width and the vertical height of a photovoltaic panel are determined. On the premise of guaranteeing the condensation ability and the condensation uniformity, the device height is effectively reduced and light is uniformly distributed on the photovoltaic panel, thereby reducing the risk of damaging the photovoltaic panel which may occur due to the fact that the local temperature is too high.

Description

A kind of segmented isocandela mirror condenser and method for designing thereof

Technical field

The invention belongs to lens technologies field, particularly a kind of segmented isocandela mirror condenser and establishingMeter method.

Background technology

Solar energy is as total source of all energy on the earth, not only environmental protection, and also reserves are huge, and canSustainable utilization is forward position and the focus of current research. But due to processing technology and existing product designThere is all drawbacks, cause that the utilization rate of solar energy is lower and cost consumption is serious, therefore, how can be with lowCost is realized the high efficiency utilization of solar energy, also becomes the direction of scientist's research.

International meeting about solar energy concentration generating is held in May, 2002 first, and meeting shows photovoltaicCondenser system is a very potential technology, and photovoltaic technology makes sunlight irradiation by speculum or lensDegree projects area after strengthening little but in photovoltaic panel that performance is excellent, improve the utilization rate of solar illuminating and reduceCost, further realizes energy-saving and emission-reduction.

The result that research scholar carries out analog study to the optically focused characteristic of speculum represents, small mirror surfaceDeformationization also can obviously reduce spotlight effect, but all ignore in much research now, reflecting mirror surface shape bringsSpotlight effect impact, thinks that speculum is directly sunray reflection to be gathered in photovoltaic panel plane approx.Therefore, there is the inhomogeneous defect of local heating in mirror condenser of the prior art, easily causes photovoltaic panelDamage because local temperature is too high, light and heat collection effect is not satisfactory. In addition, reflection of the prior art is poly-The method for designing complexity of light microscopic, and can not realize flexibly and adjusting.

In view of this, the present invention aims to provide a kind of segmented isocandela mirror condenser and method for designing thereof,It catches reflecting mirror surface shape to change the feature of spotlight effect of changing, and adopts the thought of segmented design, to oftenThe speculum at piece differing heights and angle of inclination is calculated and is made by precision, thereby further strengthens optically focused systemThe spotlight effect of system, the transformation efficiency of raising solar energy.

Summary of the invention

One of object of the present invention is: for the deficiencies in the prior art, and provide a kind of segmented isocandelaMirror condenser, it catches reflecting mirror surface shape to change the feature that can change spotlight effect, adopts segmented designThought, the speculum at every differing heights and angle of inclination is calculated and is made by precision, thereby enter oneStep strengthens the spotlight effect of condenser system, improves the transformation efficiency of solar energy.

To achieve these goals, the present invention adopts following technical scheme:

A kind of segmented isocandela mirror condenser, comprises the some sections of planar concentrating mirror units that connect successively,Taking horizontal plane as benchmark, the described planar concentrating mirror unit that is positioned at middle is parallel with horizontal plane, is positioned at centerBetween described planar concentrating mirror unit be set to reference cell, and be arranged at the right-hand member of described reference cellThe gradient of described planar concentrating mirror unit is all not identical; The described of left end that is arranged at described reference cell put downThe gradient of face condenser unit is all not identical.

One as segmented isocandela mirror condenser of the present invention is improved, and described mirror condenser is with describedThe longitudinal centre line place straight line of reference cell is that symmetry axis is symmetrical arranged.

Improve as the one of segmented isocandela mirror condenser of the present invention, be arranged at described reference cellThe length of every section of described planar concentrating mirror unit on right side is all different; Be arranged at the left side of described reference cellThe length of every section of described planar concentrating mirror unit is all different.

Improve as the one of segmented isocandela mirror condenser of the present invention, be arranged at described reference cellThe gradient of the described planar concentrating mirror unit of right-hand member increases to the right gradually; Be arranged at a left side for described reference cellThe gradient of the described planar concentrating mirror unit of end increases left gradually.

One as segmented isocandela mirror condenser of the present invention is improved, and is positioned at the described plane of low order endAngle between condenser unit and horizontal plane is less than 90 °.

Improve as the one of segmented isocandela mirror condenser of the present invention, described in be positioned at the plane of middleCondenser unit is set to non-reflective mirror.

Improve as the one of segmented isocandela mirror condenser of the present invention, from the described reference cell meter of turning right,The left end point of i section planar concentrating mirror unit is (x_i1,y_i1), wherein i is more than or equal to 1, and this section of plane is poly-The right endpoint of light microscopic unit (x '_i1,y′_i1) be:

$\left\{\begin{array}{c}{x}_{i1}^{\′}=\frac{y_{i1}-k_{i1}^{\′}\·x_{i1}+k_i\·d}{k_r-k_{i1}^{\′}}\\ y_{i1}^{\′}=k_i\·(x_{i1}^{\′}-x_{i1})\end{array}\right.;$

Wherein, 1/2 of the length that d is photovoltaic panel, k_iFor left end point and the photovoltaic of this section of planar concentrating mirror unitThe slope of the line of the left end point of plate, k '_i1For the slope of this section of planar concentrating mirror unit;

k′_i1Computing formula be:

$i\left\{\begin{array}{c}{\mathrm{\α}}_i=\frac{1}{2}\·\arccos \frac{h}{{\[{(d+x_{i1})}^2+h^2\]}^{\frac{1}{2}}}\\ \mathrm{\θ}={\mathrm{\α}}_i\\ k_{i1}^{\′}={\mathrm{arctan\α}}_i\end{array}\right.;$

Wherein, θ is the angle of inclination of this section of planar concentrating mirror unit and horizontal plane, the length that d is photovoltaic panel1/2，α_iFor the left end point of this section of planar concentrating mirror unit and the line of the left end point of photovoltaic panel and the angle of normal,H is the vertical height of photovoltaic panel.

With respect to prior art, the present invention is designed to the even reflecting condensation of segmented reflective mirror, is determiningAfter the width and vertical height of photovoltaic panel, can design adaptively when under precondition to the efficiency of light energy utilizationThe putting position of large mirror condenser, with respect to traditional design, the present invention is ensureing light gathering and poly-Under the uniform prerequisite of light, can effectively reduce the height of device, and light is evenly distributed in photovoltaic panel,Thereby there is wind resistance effect well, also reduced because of the too high and impaired risk of photovoltaic panel local temperature.

Another object of the present invention is to provide a kind of method for designing of segmented isocandela mirror condenser,Comprise the following steps:

S1, the length of establishing photovoltaic panel is 2d, the length of photovoltaic panel projection place is on the ground also 2d, andProjection place arranges the reference cell that length is 2d, or is called the 0th section of planar concentrating mirror unit;

S2, light vector when definition sunshine vertical irradiation isAnd its mould is 1; For the 0thSection planar concentrating mirror unit, its right endpoint coordinate is (d, 0), supposes the minimum of the processing technology of mirror condenserPrecision is d_min, the initial length of setting every section of planar concentrating mirror unit is l, manufactures every section of plane collecting mirror listThe length of unit must be greater than d_min, i.e. l > and d_min；

S3, for i (i >=1) section planar concentrating mirror unit, the left end point of arbitrary section of planar concentrating mirror unit is(x_i1,y_i1), according to the angle α of the line of the left end point of this point and photovoltaic panel and normal_i, photovoltaic panel vertical heightH, determine the slope k of this section of planar concentrating mirror unit '_i1, they meet following equation:

$i\left\{\begin{array}{c}{\mathrm{\α}}_i=\frac{1}{2}\·\arccos \frac{h}{{\[{(d+x_{i1})}^2+h^2\]}^{\frac{1}{2}}}\\ \mathrm{\θ}={\mathrm{\α}}_i\\ k_{i1}^{\′}={\mathrm{arctan\α}}_i\end{array}\right.;$

Wherein, θ is the angle of inclination of this section of planar concentrating mirror unit and horizontal plane;

S4, according to the length 2d of photovoltaic panel, the left end point of arbitrary section of planar concentrating mirror unit and a left side for photovoltaic panelThe slope k of the line of end points_iWith the slope k of this section of planar concentrating mirror unit '_i1, determine this section of planar concentrating mirror unitRight endpoint (x '_i1,y′_i1)：

$\left\{\begin{array}{c}{x}_{i1}^{\′}=\frac{y_{i1}-k_{i1}^{\′}\·x_{i1}+k_i\·d}{k_r-k_{i1}^{\′}}\\ y_{i1}^{\′}=k_i\·(x_{i1}^{\′}-x_{i1})\end{array}\right.;$

S5, with the right endpoint of the planar concentrating mirror unit of complete design (x '_i1,y′_i1) be connected as next section flatThe left end point of face condenser unit, makes x_i+1,1＝x′_i1，y_i+1,1＝y′_i1；

S6, repeats the S3～S5, calculates successively each section of planar concentrating mirror unit of mirror condenser, untilWhen the tilt angle theta of itself and horizontal plane approachesOr length is less than the minimum precision that processing technology can reachTime, stop the manufacture of right half part reflective mirror, then by the design of right one side of something with the 0th section of plane collecting mirrorThe longitudinal centre line of unit is the design that symmetry axis symmetry obtains left half of part reflective mirror, has now completed wholeThe design of individual mirror condenser.

With respect to prior art, method for designing provided by the invention is different from traditional method for designing, only needsProvide the width of photovoltaic panel and the vertical height of photovoltaic panel, can obtain the mirror condenser that meets demand, establishMeter method is simple, and adjustment is flexible and design cost is low. And, in the mirror condenser of the present invention's design, positionLength in each section of planar concentrating mirror unit of the same side of reference cell is all different, thereby has guaranteed notUnder same height, each section of planar concentrating mirror unit can all reflex to the light of current location equablyIn photovoltaic panel. In addition, the mirror condenser of the present invention's design is segmented level crossing, and the light of reflection hasIsocandela, equally distributed feature, therefore, with respect to traditional method for designing, optically focused of the present inventionHeat-collecting effect is better, and has overcome the inhomogeneous drawback of photovoltaic panel local heating.

In a word, the present invention catches reflecting mirror surface shape to change the feature that can change spotlight effect, adopts segmented to establishThe thought of meter, is calculated and is made by precision the planar concentrating mirror unit at every section of differing heights and angle of inclination,Thereby further strengthen the spotlight effect of condenser system, improve the transformation efficiency of solar energy.

Brief description of the drawings

Fig. 1 is structural representation of the present invention.

Fig. 2 is design procedure symbol detail view of the present invention.

Fig. 3 is optically focused light path focusing effect figure of the present invention.

Fig. 4 is optically focused light entirety emulation focusing effect figure of the present invention.

Detailed description of the invention

Below in conjunction with embodiment, the present invention and beneficial effect thereof are described in further detail, but of the present inventionEmbodiment is not limited to this.

As shown in Figure 1, a kind of segmented isocandela mirror condenser provided by the invention, comprises that some sections are complied withThe planar concentrating mirror unit 1 of inferior connection, taking horizontal plane as benchmark, the planar concentrating mirror unit that is positioned at middle withHorizontal plane is parallel, and the planar concentrating mirror unit that is positioned at middle is set to reference cell 2, and is arranged at benchmarkThe gradient of the planar concentrating mirror unit 1 of the right-hand member of unit 2 is all not identical; Be arranged at a left side for reference cell 2The gradient of the planar concentrating mirror unit 1 of end is all not identical. That is to say, the present invention is by some sections of planesCondenser unit 1 is connected in sequence, and inclination journey between two sections of adjacent planar concentrating mirror units 1Degree is different, has isocandela, equally distributed feature with the light that makes this mirror condenser reflection.

Mirror condenser is symmetrical arranged taking the longitudinal centre line place straight line of reference cell 2 as symmetry axis, wholeIndividual mirror condenser is symmetrical structure, is so not only convenient to design, and is convenient to realize isocandela.

Be arranged at all differences of length of every section of planar concentrating mirror unit 1 on the right side of reference cell 2; Be arranged atThe length of every section of planar concentrating mirror unit 1 in the left side of reference cell 2 is all different, thereby guarantees differentUnder height, each section of planar concentrating mirror unit 1 can all reflex to light equably the light of current locationOn volt plate.

The gradient that is arranged at the planar concentrating mirror unit 1 of the right-hand member of reference cell 2 increases to the right gradually; IfThe gradient that is placed in the planar concentrating mirror unit 1 of the left end of reference cell 2 increases left gradually. Be arranged at baseThe hop count of the planar concentrating mirror unit 1 on the left side of accurate unit 2 and right side is 2-10 section.

Angle between planar concentrating mirror unit 1 and the horizontal plane of low order end is less than 90 °, thereby whole anti-Penetrate condenser and be Open architecture, planar concentrating mirror unit 1 from reference cell 2 respectively to the left and right two ends byGradually upwards extend, stretch.

The planar concentrating mirror unit that is positioned at middle is set to non-reflective mirror, and this is because photovoltaic panel is opaque,Therefore its projection place without place reflective mirror.

From reference cell 2 meter of turning right, the left end point of i section planar concentrating mirror unit 1 is (x_i1,y_i1), wherein iBe more than or equal to 1, the right endpoint of this section of planar concentrating mirror unit 1 (x '_i1,y′_i1) be:

$\left\{\begin{array}{c}{x}_{i1}^{\′}=\frac{y_{i1}-k_{i1}^{\′}\·x_{i1}+k_i\·d}{k_r-k_{i1}^{\′}}\\ y_{i1}^{\′}=k_i\·(x_{i1}^{\′}-x_{i1})\end{array}\right.;$

Wherein, 1/2 of the length that d is photovoltaic panel, k_iFor left end point and the light of this section of planar concentrating mirror unit 1The slope of the line of the left end point of volt plate, k '_i1For the slope of this section of planar concentrating mirror unit 1;

k′_i1Computing formula be:

$i\left\{\begin{array}{c}{\mathrm{\α}}_i=\frac{1}{2}\·\arccos \frac{h}{{\[{(d+x_{i1})}^2+h^2\]}^{\frac{1}{2}}}\\ \mathrm{\θ}={\mathrm{\α}}_i\\ k_{i1}^{\′}={\mathrm{arctan\α}}_i\end{array}\right.;$

Wherein, θ is the angle of inclination of this section of planar concentrating mirror unit 1 and horizontal plane, the length that d is photovoltaic panel1/2, α_iFor the line of the left end point of this section of planar concentrating mirror unit 1 and the left end point of photovoltaic panel and normalAngle, the vertical height that h is photovoltaic panel.

In a word, the present invention is designed to the even reflecting condensation of segmented reflective mirror, is determining the wide of photovoltaic panelAfter degree and vertical height, can design adaptively when poly-to the reflection of efficiency of light energy utilization maximum under preconditionThe putting position of light microscopic, with respect to traditional design, the present invention is before ensureing that light gathering and optically focused are uniformlyPut, can effectively reduce the height of device, and light is evenly distributed in photovoltaic panel, thereby have veryWind resistance effect well, has also reduced because of the too high and impaired risk of photovoltaic panel local temperature.

As shown in Figure 2, the present invention also provides a kind of method for designing of segmented isocandela mirror condenser,Comprise the following steps:

S1, the length of establishing photovoltaic panel 3 is 2d, the length of photovoltaic panel 3 projection place is on the ground also 2d,And projection place arranges the reference cell 2 that length is 2d, or be called the 0th section of planar concentrating mirror unit;

S2, light vector when definition sunshine vertical irradiation isAnd its mould is 1; For the 0thSection planar concentrating mirror unit, its right endpoint coordinate is (d, 0), supposes the minimum of the processing technology of mirror condenserPrecision is d_min, the initial length of setting every section of planar concentrating mirror unit 1 is l, manufactures every section of plane collecting mirrorThe length of unit 1 must be greater than d_min, i.e. l > and d_min；

S3, for i (i >=1) section planar concentrating mirror unit 1, the left end point of arbitrary section of planar concentrating mirror unit 1For (x_i1,y_i1), according to the angle α of the line of the left end point of this point and photovoltaic panel 3 and normal_i, photovoltaic panel 3 hang downStraight height h, determine the slope k of this section of planar concentrating mirror unit 1 '_i1, they meet following equation:

$i\left\{\begin{array}{c}{\mathrm{\α}}_i=\frac{1}{2}\·\arccos \frac{h}{{\[{(d+x_{i1})}^2+h^2\]}^{\frac{1}{2}}}\\ \mathrm{\θ}={\mathrm{\α}}_i\\ k_{i1}^{\′}={\mathrm{arctan\α}}_i\end{array}\right.;$

Wherein, θ is the angle of inclination of this section of planar concentrating mirror unit and horizontal plane;

S4, according to left end point and the photovoltaic panel of the length 2d of photovoltaic panel 3, arbitrary section of planar concentrating mirror unit 1The slope k of line of left end point_iWith the slope k of this section of planar concentrating mirror unit 1 '_i1, determine this section of planar concentratingThe right endpoint of mirror unit 1 (x '_i1,y′_i1)：

$\left\{\begin{array}{c}{x}_{i1}^{\′}=\frac{y_{i1}-k_{i1}^{\′}\·x_{i1}+k_i\·d}{k_r-k_{i1}^{\′}}\\ y_{i1}^{\′}=k_i\·(x_{i1}^{\′}-x_{i1})\end{array}\right.;$

S5, with the right endpoint of the planar concentrating mirror unit 1 of complete design (x '_i1,y′_i1) be connected as next sectionThe left end point of planar concentrating mirror unit 1, makes x_i+1,1＝x′_i1，y_i+1,1＝y′_i1；

S6, repeats the S3～S5, calculates successively each section of planar concentrating mirror unit of mirror condenser, untilWhen the tilt angle theta of itself and horizontal plane approaches pi/2, or length is less than the minimum precision that processing technology can reachTime, stop the manufacture of right half part reflective mirror, then by the design of right one side of something with the 0th section of plane collecting mirrorThe longitudinal centre line of unit is the design that symmetry axis symmetry obtains left half of part reflective mirror, has now completed wholeThe design of individual mirror condenser.

Be respectively as shown in Figure 3 and Figure 4 optically focused light path focusing effect figure of the present invention and optically focused light overall imitativeTrue focusing effect figure, as seen from the figure, the present invention can realize the isocandela of reflection ray and be uniformly distributed, fromAnd ensure poly-uniformity of light, good optically focused heat build-up effect, inhomogeneous to overcome photovoltaic panel 3 local heatingsDrawback.

In a word, method for designing provided by the invention is different from traditional method for designing, only need to provide photovoltaic panel 3Width and the vertical height of photovoltaic panel 3, can obtain the mirror condenser that meets demand, method for designing letterSingle, adjustment is flexible and design cost is low. And, in the mirror condenser of the present invention's design, be positioned at benchmark listThe length of each section of planar concentrating mirror unit 1 of the same side of unit 2 is all different, thereby has guaranteed differentUnder height, each section of planar concentrating mirror unit 1 can all reflex to light equably the light of current locationOn volt plate 3. In addition, the mirror condenser of the present invention's design is segmented level crossing, and the light of reflection hasIsocandela, equally distributed feature, therefore, with respect to traditional method for designing, optically focused of the present inventionHeat-collecting effect is better, and has overcome the inhomogeneous drawback of photovoltaic panel 3 local heatings.

In a word, the present invention catches reflecting mirror surface shape to change the feature that can change spotlight effect, adopts segmented to establishThe thought of meter, calculates system to the planar concentrating mirror unit 1 at every section of differing heights and angle of inclination by precisionBecome, thereby further strengthen the spotlight effect of condenser system, improve the transformation efficiency of solar energy.

The announcement of book and instruction according to the above description, those skilled in the art in the invention can also be to above-mentionedEmbodiment changes and revises. Therefore, the present invention is not limited to concrete reality disclosed and described aboveExecute mode, also should fall into the protection domain of claim of the present invention to modifications and changes more of the present inventionIn. In addition,, although used some specific terms in this description, these terms are just for convenientIllustrate, the present invention is not formed to any restriction.

Claims (8)

1. a segmented isocandela mirror condenser, is characterized in that: comprise some sections of connect successively flatFace condenser unit, taking horizontal plane as benchmark, is positioned at described planar concentrating mirror unit and the horizontal plane of middleParallel, the described planar concentrating mirror unit that is positioned at middle is set to reference cell, and is arranged at described baseThe gradient of the described planar concentrating mirror unit of the right-hand member of accurate unit is all not identical; Be arranged at described reference cellThe gradient of described planar concentrating mirror unit of left end all not identical.

2. segmented isocandela mirror condenser according to claim 1, is characterized in that: described anti-Penetrating condenser is symmetrical arranged taking the longitudinal centre line place straight line of described reference cell as symmetry axis.

3. segmented isocandela mirror condenser according to claim 1, is characterized in that: be arranged atThe length of every section of described planar concentrating mirror unit on the right side of described reference cell is all different; Be arranged at described baseThe length of every section of described planar concentrating mirror unit in the left side of accurate unit is all different.

4. segmented isocandela mirror condenser according to claim 1, is characterized in that: be arranged atThe gradient of the described planar concentrating mirror unit of the right-hand member of described reference cell increases to the right gradually; Be arranged at instituteThe gradient of stating the described planar concentrating mirror unit of the left end of reference cell increases left gradually.

5. segmented isocandela mirror condenser according to claim 2, is characterized in that: be positioned atAngle between described planar concentrating mirror unit and the horizontal plane of right-hand member is less than 90 °.

6. segmented isocandela mirror condenser according to claim 1, is characterized in that: institute's rhemePlanar concentrating mirror unit in middle is set to non-reflective mirror.

7. segmented isocandela mirror condenser according to claim 2, is characterized in that: from describedThe reference cell meter of turning right, the left end point of i section planar concentrating mirror unit is (x_i1,y_i1), wherein i is more than or equal to1, the right endpoint of this section of planar concentrating mirror unit (x '_i1,y′_i1) be:

$\left\{\begin{array}{c}{x}_{i1}=\frac{y_{i1}-k_{i1}^{\′}\·x_{i1}+k_i\·d}{k_i-k_{i1}^{\′}}\\ y_{i1}^{\′}=k_i\·(x_{i1}^{\′}-x_{i1})\end{array}\right.;$

Wherein, 1/2 of the length that d is photovoltaic panel, k_iFor left end point and the photovoltaic of this section of planar concentrating mirror unitThe slope of the line of the left end point of plate, k '_i1For the slope of this section of planar concentrating mirror unit;

k′_i1Computing formula be:

$i\left\{\begin{array}{c}{\mathrm{\α}}_i=\frac{1}{2}\·arccos\frac{h}{{\[{(d+x_{i1})}^2+h^2\]}^{\frac{1}{2}}}\\ \mathrm{\θ}={\mathrm{\α}}_i\\ k_{i1}^{\′}={\mathrm{arctan\α}}_i\end{array}\right.;$

Wherein, θ is the angle of inclination of this section of planar concentrating mirror unit and horizontal plane, the length that d is photovoltaic panel1/2，α_iFor the left end point of this section of planar concentrating mirror unit and the line of the left end point of photovoltaic panel and the angle of normal,H is the vertical height of photovoltaic panel.

8. a method for designing for segmented isocandela mirror condenser, is characterized in that, comprises the following steps:

S1, the length of establishing photovoltaic panel is 2d, the length of photovoltaic panel projection place is on the ground also 2d, andProjection place arranges the reference cell that length is 2d, or is called the 0th section of planar concentrating mirror unit;

S2, light vector when definition sunshine vertical irradiation isAnd its mould is 1; For the 0thSection planar concentrating mirror unit, its right endpoint coordinate is (d, 0), supposes the minimum of the processing technology of mirror condenserPrecision is d_min, the initial length of setting every section of planar concentrating mirror unit is l, manufactures every section of plane collecting mirror listThe length of unit must be greater than d_min, i.e. l > and d_min；

S3, for i (i >=1) section planar concentrating mirror unit, the left end point of arbitrary section of planar concentrating mirror unit is(x_i1,y_i1), according to the angle α of the line of the left end point of this point and photovoltaic panel and normal_i, photovoltaic panel vertical heightH, determine the slope k of this section of planar concentrating mirror unit '_i1, they meet following equation:

$i\left\{\begin{array}{c}{\mathrm{\α}}_i=\frac{1}{2}\·arccos\frac{h}{{\[{(d+x_{i1})}^2+h^2\]}^{\frac{1}{2}}}\\ \mathrm{\θ}={\mathrm{\α}}_i\\ k_{i1}^{\′}={\mathrm{arctan\α}}_i\end{array}\right.;$

Wherein, θ is the angle of inclination of this section of planar concentrating mirror unit and horizontal plane;

S4, according to the length 2d of photovoltaic panel, the left end point of arbitrary section of planar concentrating mirror unit and a left side for photovoltaic panelThe slope k of the line of end points_iWith the slope k of this section of planar concentrating mirror unit '_i1, determine this section of planar concentrating mirror unitRight endpoint (x '_i1,y′_i1)：

$\left\{\begin{array}{c}{x}_{i1}^{\′}=\frac{y_{i1}-k_{i1}^{\′}\·x_{i1}+k_i\·d}{k_i-k_{i1}^{\′}}\\ y_{i1}^{\′}=k_i\·(x_{i1}^{\′}-x_{i1})\end{array}\right.;$

S5, with the right endpoint of the planar concentrating mirror unit of complete design (x '_i1,y′_i1) be connected as next section flatThe left end point of face condenser unit, makes x_i+1,1＝x′_i1，y_i+1,1＝y′_i1；

S6, repeats the S3～S5, calculates successively each section of planar concentrating mirror unit of mirror condenser, untilWhen the tilt angle theta of itself and horizontal plane approachesOr length is less than the minimum precision that processing technology can reachTime, stop the manufacture of right half part reflective mirror, then by the design of right one side of something with the 0th section of plane collecting mirrorThe longitudinal centre line of unit is the design that symmetry axis symmetry obtains left half of part reflective mirror, has now completed wholeThe design of individual mirror condenser.