CN106611961B - Chain type with inertial element cascades universe motor synchronizing solar energy power generating control device and method - Google Patents
Chain type with inertial element cascades universe motor synchronizing solar energy power generating control device and method Download PDFInfo
- Publication number
- CN106611961B CN106611961B CN201510708428.6A CN201510708428A CN106611961B CN 106611961 B CN106611961 B CN 106611961B CN 201510708428 A CN201510708428 A CN 201510708428A CN 106611961 B CN106611961 B CN 106611961B
- Authority
- CN
- China
- Prior art keywords
- circuit
- control
- power tube
- output
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 9
- 230000001360 synchronised effect Effects 0.000 claims abstract description 53
- 238000004146 energy storage Methods 0.000 claims abstract description 33
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000010248 power generation Methods 0.000 claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims description 24
- 239000000178 monomer Substances 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 8
- KEAFBPBSUPYFGT-UHFFFAOYSA-N n-(cyanomethyl)-n-morpholin-4-ylnitrous amide Chemical compound N#CCN(N=O)N1CCOCC1 KEAFBPBSUPYFGT-UHFFFAOYSA-N 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000010349 pulsation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Dc-Dc Converters (AREA)
Abstract
A kind of chain type cascade universe motor synchronizing solar energy power generating control device with inertial element, including multiple micro- sources of solar panel ultralow pressure draw silicon unit booster circuit, the synchronous rectified boost of low pressure containing energy storage circuit, H bridge and fold wave chain type cascade parallel network circuit, cutting-in control unit, AC voltage transformer and AC current transformer.The present invention takes the micro- source of low pressure to draw the silicon unit parallel connection topological structure of technology, solves the problems, such as that the series connection of monolithic photovoltaic cell intralamellar part silicon unit is excessively brought；Using energy storage, so that photovoltaic generating system has inertial element, solves the problems, such as photovoltaic power generation fluctuation greatly to electric network influencing；Folded wave interconnection technology is cascaded using chain type, inversion grid connection is not necessarily to, solves the harmonic problem of inverter generation.Therefore, the present invention is high with whole generating efficiency, photovoltaic power generation output pulsation is gentle, harmonic wave is small, invents significant.
Description
Technical field
The present invention relates to solar energy power generating, especially a kind of chain type cascade universe motor synchronizing with inertial element is too
Positive energy photovoltaic power generation control device and control method.
Background technique
The energy is the important material base that the mankind depend on for existence and development, and an important factor for influence national security.It passes
The fossil energy of system belongs to non-renewable energy resources, faces exhausted danger.On the other hand, due to combustion of fossil fuels, atmosphere is given
Cause serious pollution.
In order to solve this significant problem of energy supply, whole world various countries all accelerate the exploitation to new energy.The sun
It can be used as a kind of clean energy resource, had the characteristics that following: first, it is inexhaustible.Second, it is easily obtained, it is generally existing.The
Three, cleaning is pollution-free.
The development and utilization of solar energy are to solve traditional fossil energy bring energy shortage, environmental pollution and greenhouse effects etc.
The effective way of problem is the ideal alternative energy source of human development.The utilization of solar energy mainly includes solar thermal utilization (heating power
Power generation, the solar water heater on roof etc.), solar power generation, photochemical utilize.Photovoltaic power generation is by remote villages and special
Develop using to the direction for generating electricity by way of merging two or more grid systems and powering with Integration of building, photovoltaic power generation is from the supplement energy to alternative energy source transition.
China's photovoltaic power generation industry is started in the 1970s, entering stable development period, the sun in the mid-90
Energy battery and module production increase year by year, have leapt to the whole world first at present.
Under a series of stimulation of preferential policies of country, China's photovoltaic power generation industry development is rapid, end of the year China in 2012
Photovoltaic generation installed capacity has reached 7,000,000 kilowatts, and the end of the year in 2013 reaches 17,160,000 kilowatts, has reached 28,050,000 within 2014
Kilowatt.
China's photovoltaic power generation is mainly based on large-scale photovoltaic power station, the centralized photovoltaic DC-to-AC converter or string type light of use
Lie prostrate inverter, the low problem of generally existing solar panel efficiency, simultaneously because hot spot effect causes solar panel service life low.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of, the chain type with inertial element cascades universe motor synchronizing too
Positive energy photovoltaic power generation control device, to greatly improve the efficiency of photovoltaic plant, while extending the service life of photovoltaic battery panel, promotees
Into the sound development of China's photovoltaic power generation cause.
Technical solution of the invention is as follows:
A kind of chain type cascade universe motor synchronizing solar energy power generating control device with inertial element, feature exist
In, comprising: draw silicon unit booster circuit, the synchronous rectified boost electricity of low pressure containing energy storage in multiple micro- sources of solar panel ultralow pressure
Wave chain type cascade parallel network circuit, cutting-in control unit, AC voltage transformer and AC current transformer are folded in road, H bridge；
It includes 3 concatenated photovoltaic cell lists that silicon unit booster circuit is drawn in each micro- source of solar panel ultralow pressure
Body, the first boosting reactor, the first power tube, the second power tube, the first input filter capacitor, the first output filter capacitor, electricity
Pressure sensor, current sensor and MPPT controller, first input filter capacitor are connected in parallel on 3 concatenated light
Between the positive and negative anodes for lying prostrate battery cell output, the emitter of first power tube is connected shape with the emitter of the second power tube
At node, the collector of first power tube connects the cathode of the concatenated photovoltaic cell monomer output of described 3, the second function
The collector of rate pipe constitutes the output plus terminal that silicon unit booster circuit is drawn in the micro- source of solar panel ultralow pressure, and described 3
The cathode of concatenated photovoltaic cell monomer output constitutes output negative terminal；One end and described 3 of the first boosting reactor
The anode of a concatenated photovoltaic cell monomer is connected, the other end and first power tube of the first boosting reactor and the
The node of two power tubes is connected, the first control signal of the control terminal of first power tube and the MPPT controller
Output end is connected, the output end phase of the control terminal and the second control signal of the MPPT controller of second power tube
Even, the control logic of the second output signal and the control logic of first control signal are opposite；The current sensor is connected on
In the anode circuit of the output of the concatenated photovoltaic cell monomer of described 3, the input terminal of the voltage sensor with it is described
3 concatenated photovoltaic cell monomers output anode be connected, the voltage signal inputs of the MPPT controller with it is described
The output end of voltage sensor be connected, the current signal input of the MPPT controller and the current sensor
Output end is connected, and first output filter capacitor connects between the output plus terminal and output negative terminal；
The synchronous rectified boost circuit of low pressure containing energy storage includes synchronous rectified boost controller, the second boosting reactance
Device, third power tube, the 4th power tube, the second input filter capacitor, the second output filter capacitor, second voltage sensor and
Two current sensors, second input filter capacitor are attempted by the input of the synchronous rectified boost circuit of low pressure containing energy storage
Between the positive and negative anodes at end, the emitter of the third power tube 1 is connected configuration node with the emitter of the 4th power tube, described
The collector of third power tube be connected with the anode circuit of the synchronous rectified boost of low pressure containing the energy storage circuit, described
The collector of four power tubes constitutes the anode of output, one end of the second boosting reactor and the anode of the input terminal
It is connected, the other end of the second boosting reactor is connected with the node of the third power tube, the 4th power tube, described
The control terminal of third power tube is connected with first output signal end of synchronous rectified boost controller, the 4th power tube
Control signal end be connected with second output signal end of synchronous rectified boost controller, the third power tube,
The control logic of four power tubes is on the contrary, the voltage signal inputs of the synchronous rectified boost controller and second electricity
The voltage signal output end of pressure sensor is connected, the current signal input of synchronous rectified boost controller and the second current sense
The current signal output end of device is connected；
The H bridge folds the H-bridge circuit that wave chain type cascade parallel network circuit includes N number of parallel connection, and each H-bridge circuit includes 4
Power tube and referred to as S1, S2, S3, S4, S1 are serially connected with S2, and S3 is serially connected with S4, this two string connects together, S1
Control signal it is identical as the control signal of S3, the control signal of S2 is identical as the control signal of S4, the control signal and S2 of S1
Control signal on the contrary, the control signal input of S1 and S3 and the cutting-in control unit the first output end of control signal
It is connected, the control signal second output terminal phase of the control signal input of the S2 and S4 and the cutting-in control unit
Even；
The output end of N number of H bridge control signal of the cutting-in control unit folds the cascade of wave chain type with the H bridge simultaneously respectively
The control signal input of N number of H-bridge circuit of net circuit is connected, the ac voltage signal input terminal of the cutting-in control unit
It is connected with the voltage signal output end of the AC voltage transformer, the alternating current letter of the cutting-in control unit input
Number input terminal be connected with the current signal output end of the AC current transformer；
The output end that silicon unit booster circuit is drawn in multiple micro- sources of solar panel ultralow pressure connects together
It is connected with the input terminal of the synchronous rectified boost of low pressure containing the energy storage circuit, this contains the defeated of energy storage low pressure synchronous rectified boost circuit
Outlet is connected with the input terminal that the H bridge folds wave chain type cascade parallel network circuit；The H bridge folds wave chain type and cascades parallel network circuit
Output end be connected with power grid；The input terminal of the AC voltage transformer and the H bridge fold wave chain type and cascade grid-connected electricity
The output end on road is connected, the output end of AC voltage transformer input AC electricity corresponding with the cutting-in control unit
Signal end is pressed to be connected；The input terminal of the AC current transformer is serially connected in the H bridge and folds wave chain type cascade parallel network circuit
Output end and power grid circuit between, the output end of the AC current transformer is straight with the cutting-in control unit
Current signal input is flowed to be connected.
The H bridge folds the positive integer that the quantity N for the H-bridge circuit that wave chain type cascade parallel network circuit includes is 12 or more.
The power tube is MOSFET or IGBT switching tube.
The input terminal of the synchronous rectified boost circuit of low pressure containing energy storage simultaneously connects an electrolytic capacitor, baby battery or other storages
It can element.
Using the chain type cascade universe motor synchronizing solar energy power generating control device with inertial element to too
Positive energy photovoltaic power generation grid-connecting control method, it is characterized in that the method steps are as follows:
Step 1, the initial value of cutting-in control unit is set:
PWM1 initial value is set as 0.8, sets PWM2 initial value as 0.5, the setting control angle signal θ initial value=0；
Step 2, N number of control signal θ angle value θ that the H bridge folds wave chain type cascade parallel network circuit is calculated according to the following formula
Angle: where θn=n θA-(n-1)θB+N(cosθA-cosθB) for n to link number, N is bridge module serial number,
θA=sin-1A=arcsinA；θB=sin-1B=arcsinB；
A=n/N；B=(n-1)/N；
Step 3, the control of the MPPT controller:
PWM1 initial value is set as 0.8；The MPPT controller by acquire the voltage sensor, current sensor it is defeated
Signal out synchronizes rectification control to first power tube and the second power tube, realizes 3 concatenated photovoltaic cell lists
The maximal power tracing of body, PWM1 increases by 0.01 since initial value every time, until searching maximum power；
Step 4, the control of the synchronous rectified boost controller:
PWM2 initial value is set as 0.5；The synchronous rectified boost controller by acquire the second voltage sensor,
The input voltage and input current signal of the synchronous rectified boost of low pressure containing the energy storage circuit of second current sensor output, it is right
Third power tube and the 4th power tube are controlled, and realize that synchronous rectified boost, PWM2 increase by 0.01 since initial value every time,
The input voltage for finally making the synchronous rectified boost of low pressure containing the energy storage circuit is 5.5V.
Compared with prior art, the features of the present invention is as follows:
1. pair monolithic photovoltaic cell intralamellar part carries out ultralow pressure MPPT control, the efficiency of photovoltaic plant is substantially increased；
2. solving the problems, such as photovoltaic battery panel hot spot, the solar panel service life is extended；
3. output-power fluctuation is small, gentle, power grid is impacted small；
4. having schedulable function in short-term；
5. universe motor synchronizing.
Detailed description of the invention
Fig. 1 is showing for the chain type cascade universe motor synchronizing solar energy power generating control device that the present invention has inertial element
It is intended to.
Fig. 2 is that technology frame chart is drawn in the micro- source of ultralow pressure of the invention.
Fig. 3 is the synchronous rectified boost circuit block diagram of low pressure containing energy storage of the invention.
Fig. 4 is that H bridge of the invention folds wave chain type cascade parallel network circuit block diagram.
Specific embodiment
Below with reference to embodiment and attached drawing, the invention will be further described, but protection model of the invention should not be limited with this
It encloses.
Referring to Fig. 1, Fig. 1 is the chain type cascade universe motor synchronizing solar energy power generating control that the present invention has inertial element
The schematic diagram of device processed, as shown, a kind of chain type with inertial element cascades universe motor synchronizing solar energy power generating control
Device 1 processed, comprising: draw silicon unit booster circuit 2, the synchronous rectification of low pressure containing energy storage in multiple micro- sources of solar panel ultralow pressure
It is mutual that booster circuit 3, H bridge fold wave chain type cascade parallel network circuit 4, cutting-in control unit 5, AC voltage transformer 6 and alternating current
Sensor 7；
It includes 3 concatenated photovoltaic cell lists that silicon unit booster circuit 2 is drawn in each micro- source of solar panel ultralow pressure
The boosting of body 16, first reactor 8, the first power tube 9, the second power tube 10, the output filtering of the first input filter capacitor 11, first
Capacitor 12, voltage sensor 13, current sensor 14 and MPPT controller 15, referring to fig. 2.First input filter capacitor
11 are connected in parallel between the positive and negative anodes that the concatenated photovoltaic cell monomer 16 of described 3 exports, the transmitting of first power tube 9
The emitter of pole and the second power tube 10 is connected to form node, and the collector of first power tube 9 connects 3 series connection
The cathode that exports of photovoltaic cell monomer 16, the collector of the second power tube 10 constitutes the micro- source of solar panel ultralow pressure and draws
The output plus terminal of silicon unit booster circuit 2, it is negative that the cathode that the concatenated photovoltaic cell monomer 16 of described 3 exports constitutes output
End；One end of the described first boosting reactor 8 is connected with the anode of 3 concatenated photovoltaic cell monomers 16, this
The other end of one boosting reactor 8 is connected with the node of first power tube 9 and the second power tube 10, first function
The control terminal of rate pipe 9 is connected with the output end of the first control signal of the MPPT controller 15, second power tube
10 control terminal is connected with the output end of the second control signal of the MPPT controller 15, and the control of the second output signal is patrolled
It collects opposite with the control logic of first control signal；The current sensor 14 is connected on 3 concatenated photovoltaic electrics
In the anode circuit of the output of pond monomer 16, the input terminal of the voltage sensor 13 and 3 concatenated photovoltaic electrics
The anode of the output of pond monomer 16 is connected, the voltage signal inputs of the MPPT controller 15 and the voltage sensor 13
Output end be connected, the output end phase of the current signal input of the MPPT controller 15 and the current sensor 14
Even, first output filter capacitor 12 connects between the output plus terminal and output negative terminal；
Fig. 3 is the synchronous rectified boost circuit block diagram of low pressure containing energy storage of the invention, as shown, the synchronous rectification of low pressure containing energy storage
Booster circuit 3 include synchronous rectified boost controller 17, second boost reactor 18, third power tube 19, the 4th power tube 20,
Second input filter capacitor 21, the second output filter capacitor 22, second voltage sensor 23 and the second current sensor 24, it is described
The second input filter capacitor 21 be attempted by the synchronous rectified boost of low pressure containing the energy storage circuit 3 input terminal positive and negative anodes it
Between, the emitter of the third power tube 19 is connected configuration node with the emitter of the 4th power tube 20, the third function
The collector of rate pipe 19 is connected the 4th power with the anode circuit of the synchronous rectified boost of low pressure containing the energy storage circuit 3
The collector of pipe 20 constitutes the anode of output, one end of the second boosting reactor 18 and the positive phase of the input terminal
Even, the other end of the second boosting reactor 18 is connected with the node of the third power tube 19, the 4th power tube 20,
The control terminal of the third power tube 19 is connected with 17 first output signal end of synchronous rectified boost controller, and described
The control signal end of four power tubes 20 is connected with 17 second output signal end of synchronous rectified boost controller, and described
Three power tubes 19, the 4th power tube 20 control logic on the contrary, the voltage signal of the synchronous rectified boost controller 17 is defeated
Enter end to be connected with the voltage signal output end of the second voltage sensor 23, the electric current letter of synchronous rectified boost controller 17
Number input terminal is connected with the current signal output end of the second current sensor 24；
Fig. 4 is that H bridge of the invention folds wave chain type cascade parallel network circuit block diagram, as shown, the folded wave chain type cascade of H bridge is grid-connected
Circuit 4 includes the H-bridge circuit of N number of parallel connection, and each H-bridge circuit includes 4 power tubes and referred to as S1, S2, S3, S4, S1 and S2 go here and there
It is connected together, S3 is serially connected with S4, this two string connects together, and the control signal of S1 is identical as the control signal of S3, S2
Control signal it is identical as the control signal of S4, S1 control signal and S2 control signal on the contrary, S1 and S3 control signal
Input terminal is connected with the first output end of control signal of the cutting-in control unit 5, and the control signal of the S2 and S4 are defeated
Enter end to be connected with the control signal second output terminal of the cutting-in control unit 5；
The output end of N number of H bridge control signal of the cutting-in control unit 5 folds the cascade of wave chain type with the H bridge respectively
The control signal input of N number of H-bridge circuit of parallel network circuit 4 is connected, and the ac voltage signal of the cutting-in control unit 5 is defeated
Enter end to be connected with the voltage signal output end of the AC voltage transformer 6, the exchange that the cutting-in control unit 5 inputs
The input terminal of current signal is connected with the current signal output end of the AC current transformer 7；
The output end that silicon unit booster circuit 2 is drawn in multiple micro- sources of solar panel ultralow pressure connects together
It is connected with the input terminal of the synchronous rectified boost of low pressure containing the energy storage circuit 3, this contains energy storage low pressure synchronous rectified boost circuit 3
Output end is connected with the input terminal that the H bridge folds wave chain type cascade parallel network circuit 4；It is grid-connected that the H bridge folds the cascade of wave chain type
The output end of circuit 4 is connected with power grid；The input terminal of the AC voltage transformer 6 and the H bridge fold the cascade of wave chain type
The output end of parallel network circuit 4 is connected, and the output end of the AC voltage transformer 6 is corresponding with the cutting-in control unit 5
Input ac voltage signal end is connected；The input terminal of the AC current transformer 7 is serially connected in the H bridge and folds wave chain type grade
Join between the output end of parallel network circuit 4 and the circuit of power grid, the output end of the AC current transformer 7 with it is described grid-connected
The DC current signal input terminal of control unit 5 is connected.
The H bridge folds the positive integer that the quantity N for the H-bridge circuit that wave chain type cascade parallel network circuit 4 includes is 12 or more.
The power tube is MOSFET or IGBT switching tube.
The input terminal of the synchronous rectified boost of low pressure containing the energy storage circuit 3 and connect an electrolytic capacitor, baby battery or other
Energy-storage travelling wave tube.
Using the chain type cascade universe motor synchronizing solar energy power generating control device with inertial element to too
Positive energy photovoltaic power generation grid-connecting control method, includes the following steps:
Step 1, the initial value of cutting-in control unit 5 is set:
PWM1 initial value is set as 0.8, sets PWM2 initial value as 0.5, the setting control angle signal θ initial value=0；
Step 2, N number of control signal θ angle value θ that the H bridge folds wave chain type cascade parallel network circuit 4 is calculated according to the following formula
Angle: where θn=n θA-(n-1)θB+N(cosθA-cosθB) for n to link number, N is bridge module serial number,
θA=sin-1A=arcsinA；θB=sin-1B=arcsinB；
A=n/N；B=(n-1)/N；
Step 3, the control of the MPPT controller 15:
PWM1 initial value is set as 0.8；The MPPT controller 15 is by acquiring the voltage sensor 13, current sensor
14 output signal synchronizes rectification control to first power tube 9 and the second power tube 10, and realization 3 is concatenated
The maximal power tracing of photovoltaic cell monomer 16, PWM1 increase by 0.01 since initial value every time, are until searching maximum power
Only；
Step 4, the control of the synchronous rectified boost controller 17:
PWM2 initial value is set as 0.5；The synchronous rectified boost controller 17 is by acquiring the second voltage sensing
The input voltage and input electricity for the synchronous rectified boost of low pressure containing the energy storage circuit 3 that device 23, the second current sensor 24 export
Flow signal, third power tube 19 and the 4th power tube 20 are controlled, realize synchronous rectified boost, PWM2 since initial value,
Increase by 0.01 every time, finally making the input voltage of the synchronous rectified boost of low pressure containing the energy storage circuit 3 is 5.5V.
Claims (5)
1. a kind of chain type with inertial element cascades universe motor synchronizing solar energy power generating control device, it is characterised in that should
Device (1) include: multiple micro- sources of solar panel ultralow pressure draw silicon unit booster circuit (2), low pressure containing energy storage synchronize it is whole
Flow booster circuit (3), H bridge fold wave chain type cascade parallel network circuit (4), cutting-in control unit (5), AC voltage transformer (6) and
AC current transformer (7)；
It includes 3 concatenated photovoltaic cell monomers that silicon unit booster circuit (2) is drawn in each micro- source of solar panel ultralow pressure
(16), the first boosting reactor (8), the first power tube (9), the second power tube (10), the first input filter capacitor (11), first
Output filter capacitor (12), voltage sensor (13), current sensor (14) and MPPT controller (15), first input
Filter capacitor (11) is connected in parallel between the positive and negative anodes of concatenated photovoltaic cell monomer (16) output of described 3, and described first
The emitter of power tube (9) and the emitter of the second power tube (10) are connected to form node, the collection of first power tube (9)
Electrode connects the cathode of concatenated photovoltaic cell monomer (16) output of described 3, and the collector of the second power tube (10) is constituted too
Draw the output plus terminal of silicon unit booster circuit (2), the concatenated photovoltaic cell list of described 3 in the micro- source of positive energy solar panel ultralow pressure
The cathode of body (16) output constitutes output negative terminal；One end of first boosting reactor (8) and 3 concatenated light
The anode for lying prostrate battery cell (16) is connected, the other end and first power tube (9) of first boosting reactor (8) and the
The nodes of two power tubes (10) is connected, and the of the control terminal of first power tube (9) and the MPPT controller (15)
The output end of one control signal is connected, and the of the control terminal of second power tube (10) and the MPPT controller (15)
The output end of two control signals is connected, and the control logic of the second output signal and the control logic of first control signal are opposite；Institute
The current sensor (14) stated is connected in the anode circuit of the output of 3 concatenated photovoltaic cell monomers (16), institute
The input terminal for the voltage sensor (13) stated is connected with the anode of the output of described 3 concatenated photovoltaic cell monomers (16),
The voltage signal inputs of the MPPT controller (15) are connected with the output end of the voltage sensor (13), described
The current signal input of MPPT controller (15) is connected with the output end of the current sensor (14), and described first is defeated
Filter capacitor (12) connects between the output plus terminal and output negative terminal out；
The synchronous rectified boost circuit of low pressure containing energy storage (3) includes synchronous rectified boost controller (17), the second boosting electricity
Anti- device (18), third power tube (19), the 4th power tube (20), the second input filter capacitor (21), the second output filter capacitor
(22), second voltage sensor (23) and the second current sensor (24), second input filter capacitor (21) are attempted by
Between the positive and negative anodes of the input terminal of the synchronous rectified boost of low pressure containing the energy storage circuit (3), the third power tube (19)
Emitter is connected configuration node with the emitter of the 4th power tube (20), the collector of the third power tube (19) with it is described
The synchronous rectified boost circuit of low pressure containing energy storage (3) anode circuit be connected, the collector structure of the 4th power tube (20)
At the anode of output, one end of described second boosting reactor (18) is connected with the anode of the input terminal, and described the
The other end of two boostings reactor (18) is connected with the node of the third power tube (19), the 4th power tube (20), described
The control terminal of third power tube (19) is connected with (17) first output signal end of synchronous rectified boost controller, and described
The control signal end of four power tubes (20) is connected with (17) second output signal end of synchronous rectified boost controller, described
Third power tube (19), the 4th power tube (20) control logic on the contrary, the synchronous rectified boost controller (17)
Voltage signal inputs are connected with the voltage signal output end of the second voltage sensor (23), synchronous rectified boost control
The current signal input of device (17) is connected with the current signal output end of the second current sensor (24)；
The H bridge folds the H-bridge circuit that wave chain type cascade parallel network circuit (4) includes N number of parallel connection, and each H-bridge circuit includes 4 function
Rate pipe and referred to as S1, S2, S3, S4, S1 are serially connected with S2, and S3 is serially connected with S4, this two string connects together, S1's
Control that signal is identical as the control signal of S3, and the control signal of S2 is identical as the control signal of S4, S1's controls signal and S2
Signal is controlled on the contrary, the control signal first of the control signal input of S1 and S3 and the cutting-in control unit (5) exports
End is connected, and the control signal second of the control signal input of the S2 and S4 and the cutting-in control unit (5) exports
End is connected；
The output end of N number of H bridge control signal of the cutting-in control unit (5) folds the cascade of wave chain type with the H bridge simultaneously respectively
The control signal input of N number of H-bridge circuit of net circuit (4) is connected, the ac voltage signal of the cutting-in control unit (5)
Input terminal is connected with the voltage signal output end of the AC voltage transformer (6), cutting-in control unit (5) input
The input terminal of ac current signal be connected with the current signal output end of the AC current transformer (7)；
The output end that silicon unit booster circuit (2) is drawn in multiple micro- sources of solar panel ultralow pressure connect together with
The input terminal of the synchronous rectified boost of low pressure containing the energy storage circuit (3) is connected, this contains energy storage low pressure synchronous rectified boost circuit (3)
Output end and the H bridge fold the input terminal of wave chain type cascade parallel network circuit (4) and be connected；The H bridge folds the cascade of wave chain type
The output end of parallel network circuit (4) is connected with power grid；The input terminal of the AC voltage transformer (6) and the H bridge fold wave
The output end that chain type cascades parallel network circuit (4) is connected, the output end and the cutting-in control of the AC voltage transformer (6)
The corresponding input ac voltage signal end of unit (5) is connected；The input terminal of the AC current transformer (7) is serially connected in described
H bridge fold wave chain type cascade parallel network circuit (4) output end and power grid circuit between, the AC current transformer (7)
Output end be connected with the DC current signal input terminal of the cutting-in control unit (5).
2. chain type according to claim 1 cascades universe motor synchronizing solar energy power generating control device, it is characterised in that
The H bridge folds the positive integer that the quantity N for the H-bridge circuit that wave chain type cascade parallel network circuit (4) includes is 12 or more.
3. chain type according to claim 1 cascades universe motor synchronizing solar energy power generating control device, it is characterised in that
The power tube is MOSFET or IGBT switching tube.
4. chain type according to claim 1 cascades universe motor synchronizing solar energy power generating control device, it is characterised in that
The input terminal of the synchronous rectified boost circuit of low pressure containing energy storage (3) simultaneously connects an electrolytic capacitor, baby battery or other energy storage member
Part.
5. utilizing the chain type cascade universe motor synchronizing solar energy power generating control dress with inertial element described in claim 1
It sets to grid-connection control method for solar photovoltaic power generation, it is characterised in that the method steps are as follows:
Step 1, the initial value of cutting-in control unit (5) is set:
PWM1 initial value is set as 0.8, sets PWM2 initial value as 0.5, the setting control angle signal θ initial value=0；
Step 2, N number of control signal θ angle value that H bridge folds wave chain type cascade parallel network circuit (4) is calculated according to the following formula: where θn=
nθA-(n-1)θB+N(cosθA-cosθB) for n to link number, N is the H-bridge circuit of each parallel connection,
θA=sin-1A=arcsinA；θB=sin-1B=arcsinB；
A=n/N；B=(n-1)/N；
Step 3, the control of MPPT controller (15):
PWM1 initial value is set as 0.8；The MPPT controller (15) is by acquiring the voltage sensor (13), current sensor
(14) output signal synchronizes rectification control to first power tube (9) and the second power tube (10), realizes 3
The maximal power tracing of concatenated photovoltaic cell monomer (16), PWM1 increases by 0.01 since initial value every time, until searching most
Until high-power；
Step 4, the control of the synchronous rectified boost controller (17):
PWM2 initial value is set as 0.5；The synchronous rectified boost controller (17) is by acquiring the second voltage sensor
(23), the second current sensor (24) output the synchronous rectified boost of low pressure containing the energy storage circuit (3) input voltage with it is defeated
Enter current signal, third power tube (19) and the 4th power tube (20) are controlled, realize synchronous rectified boost, PWM2 is from first
Value starts, and increases by 0.01 every time, finally makes the input voltage of the synchronous rectified boost circuit of low pressure containing energy storage (3) to be
5.5V。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708428.6A CN106611961B (en) | 2015-10-27 | 2015-10-27 | Chain type with inertial element cascades universe motor synchronizing solar energy power generating control device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708428.6A CN106611961B (en) | 2015-10-27 | 2015-10-27 | Chain type with inertial element cascades universe motor synchronizing solar energy power generating control device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106611961A CN106611961A (en) | 2017-05-03 |
| CN106611961B true CN106611961B (en) | 2019-01-08 |
Family
ID=58614373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510708428.6A Expired - Fee Related CN106611961B (en) | 2015-10-27 | 2015-10-27 | Chain type with inertial element cascades universe motor synchronizing solar energy power generating control device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106611961B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202978744U (en) * | 2012-11-20 | 2013-06-05 | 哈尔滨九洲电气股份有限公司 | Two-stage single-phase photovoltaic grid-connected inverter topological structure |
| CN103515974A (en) * | 2012-06-28 | 2014-01-15 | 周德佳 | High-efficiency stable photovoltaic single-phase grid connected control method with double MPPT functions |
| EP2765472A1 (en) * | 2013-02-08 | 2014-08-13 | Omron Corporation | Boost unit, power conditioner, photovoltaic system, program, and voltage tracking method |
-
2015
- 2015-10-27 CN CN201510708428.6A patent/CN106611961B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515974A (en) * | 2012-06-28 | 2014-01-15 | 周德佳 | High-efficiency stable photovoltaic single-phase grid connected control method with double MPPT functions |
| CN202978744U (en) * | 2012-11-20 | 2013-06-05 | 哈尔滨九洲电气股份有限公司 | Two-stage single-phase photovoltaic grid-connected inverter topological structure |
| EP2765472A1 (en) * | 2013-02-08 | 2014-08-13 | Omron Corporation | Boost unit, power conditioner, photovoltaic system, program, and voltage tracking method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106611961A (en) | 2017-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101860270B (en) | Access system for adequately utilizing wind energy and solar energy and realization method thereof | |
| CN104467005B (en) | The control method of T-shaped three-level three-phase four-bridge arm grid-connected photovoltaic system | |
| CN201194333Y (en) | Solar photovoltaic parallel-in system | |
| CN101710716A (en) | Grid-connected inverter capable of reducing electrolytic capacitance | |
| CN101867291A (en) | Household solar photovoltaic inverter | |
| CN102355165A (en) | Photovoltaic power generation device with global maximum power output function | |
| CN101847876A (en) | Three-phase photovoltaic grid connected inverter system | |
| CN202190087U (en) | Distributed electric automobile charging system capable of supplying multi energy sources | |
| CN102638059B (en) | Single-phase photovoltaic grid-connected generating system power decoupling circuit and control method thereof | |
| CN201947196U (en) | Photovoltaic grid-connected inverter based on maximum power point tracking | |
| CN104796065A (en) | Control circuit of wind-solar grid-connected power generation system on expressway | |
| CN201682294U (en) | Three-phase photovoltaic grid-connected inverter based on Z sources | |
| CN106611962B (en) | A kind of chain type cascade motor synchronizing solar energy power generating control device and control method | |
| CN202872688U (en) | Bidirectional inverter | |
| CN202840997U (en) | Mini-type photovoltaic inverter with composite three-level structure and based on DSP | |
| CN208754002U (en) | A kind of asymmetrical component detection of more level photovoltaic inverters and cancellation element | |
| CN106611961B (en) | Chain type with inertial element cascades universe motor synchronizing solar energy power generating control device and method | |
| CN202564966U (en) | Photovoltaic system | |
| CN105186564B (en) | A kind of dynamical solar energy power generating control system and method | |
| CN204928192U (en) | Light stores up integrated device suitable for distributing type electricity generation | |
| CN203352194U (en) | Dual mode inverter for solar photovoltaic power generation | |
| CN103683312A (en) | Integrated intelligent photovoltaic power generation component and method for energy conversion of a photovoltaic cell | |
| CN109586331A (en) | A kind of accumulation energy type photovoltaic grid-connected generating control system | |
| CN203645569U (en) | Large-power photovoltaic grid connected inverter | |
| CN202034793U (en) | Non-transformer wind power generation grid connection topology structure based on H bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 |