CN101951011B - Solar photovoltaic and commercial power combined power supply system and control method thereof - Google Patents
Solar photovoltaic and commercial power combined power supply system and control method thereof Download PDFInfo
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- CN101951011B CN101951011B CN2010102630337A CN201010263033A CN101951011B CN 101951011 B CN101951011 B CN 101951011B CN 2010102630337 A CN2010102630337 A CN 2010102630337A CN 201010263033 A CN201010263033 A CN 201010263033A CN 101951011 B CN101951011 B CN 101951011B
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The invention discloses a solar photovoltaic and commercial power combined power supply system and a control method thereof, and belongs to the field of new energy power supply systems. The structure of the system comprises a photovoltaic array, a commercial power supply, a DC/DC converter, a PFC converter and a DC/AC inverter, wherein the photovoltaic array and the commercial power supply are connected with a direct current bus through the DC/DC converter and the PFC converter respectively and supply power to an alternating current load through the DC/AC inverter. In the invention, for fully utilizing solar, the DC/DC converter can operate with the maximum power of a photovoltaic battery; meanwhile, the commercial power is used as an auxiliary power supply, three power supply modes are realized, and the stable work of the load under various conditions is ensured.
Description
Technical field
The present invention relates to a kind of electric power system, relate in particular to electric power system and the method for controlling power supply thereof of a kind of photovoltaic array and civil power associating, belong to new energy system field.
Background technology
Along with improving constantly of human living standard, the demand of the energy is increased considerably.Fossil energy is just day by day exhausted as non-renewable energy resources, and the environmental pollution that it causes is day by day serious.Solar photovoltaic powered as the green novel energy source supply power mode, it has obtained increasing application.The advantage of its maximum is to regenerate, and environment is not polluted.
To be external characteristic curve change with the variation of light intensity and temperature the maximum characteristic of solar-energy photo-voltaic cell, in order to maximally utilise solar energy, require DC converter can constantly control the output of solar-energy photo-voltaic cell, it is operated near the maximum power point.
The solar electric power supply system that proposes at present can't can be worked sustainedly and stably in proof load, therefore in order to use fully solar energy, need again simultaneously proof load constantly normally stably to work, so must add an accessory power supply, with when photovoltaic can't satisfy the load supplying needs as for subsequent use.
Summary of the invention
The object of the invention is to: propose a kind of take photovoltaic as main electricity, mains supply is the associating electric power system of accessory power supply and associating method for controlling power supply thereof.
Electric power system of the present invention comprises photovoltaic array, mains supply, DC/DC converter, pfc converter and DC/AC inverter, wherein: the output of photovoltaic array is by DC/DC converter access dc bus, the output of mains supply accesses dc bus by pfc converter, the input of DC/AC inverter is connected into dc bus, and the output of DC/AC inverter connects load.
Described DC/DC converter is to be composed in series successively by Boost circuit, full-bridge converter and current rectifying and wave filtering circuit, and the input of Boost circuit connects the output of photovoltaic array, the output access dc bus of current rectifying and wave filtering circuit.
Described pfc converter connects the Boost pfc circuit by the PFC rectification circuit and forms, and the input of PFC rectification circuit connects the output of mains supply, the output access dc bus of Boost pfc circuit.
Based on the method for controlling power supply of electric power system of the present invention, the control circuit that this control method adopts is divided into two-way, is specially:
Photovoltaic array output current, voltage sample access MPPT controller, the output access adder of MPPT controller, the output of adder and photovoltaic array output current sampling access the first subtracter, the output of the first subtracter are successively by the first current regulator, the first pwm circuit be connected and connect the Boost switching tube behind the gate drive circuit; Voltage comparator reference value and dc bus output voltage sampling access the second subtracter, the output access voltage regulator of the second subtracter, one tunnel output of voltage regulator and sinusoidal steamed bun ripple access multiplier, another road output is by blocking diode access adder, the output of multiplier and pfc converter inductive current sampling access the 3rd subtracter, the output of the 3rd subtracter are successively by the second current regulator, the second pwm circuit be connected and connect Boost PFC switching tube behind the gate drive circuit;
This control method comprises following content:
When the peak power output of photovoltaic array during greater than the load power demand, powered to the load separately by photovoltaic array, DC bus-bar voltage raises, it is negative that voltage regulator is output as, and the duty ratio of Boost PFC switching tube is 0, makes simultaneously the blocking diode conducting, the output of voltage regulator makes as adjusting signal that the voltage given reference value reduces in the MPPT controller, this moment, voltage regulator and the first current regulator formed two closed loops, made the dc bus voltage stabilizing, were in the voltage stabilizing state;
When the peak power output of photovoltaic array during less than the load power demand, powered to the load simultaneously by photovoltaic array and mains supply, this moment, voltage regulator was regulated the Duty ratio control DC bus-bar voltage of Boost PFC switching tube, the blocking diode blocking-up, the two-way control circuit works alone, the photovoltaic array maximum power point voltage value that the MPPT controller calculates is given as the benchmark of the first current regulator, makes the photovoltaic array Maximum Power Output, and deficit power is provided by mains supply;
When photovoltaic array can't be worked, close the DC/DC converter, powered to the load by mains supply, voltage regulator is regulated the Duty ratio control DC bus-bar voltage of Boost PFC switching tube, makes DC bus-bar voltage constant.
Electric power system of the present invention is take photovoltaic array as main power supply, according to what of solar-energy photo-voltaic cell power output, controlling native system steadily switches under three kinds of patterns, be that solar energy one-way works alone, the civil power single channel works alone, solar energy/civil power two-way associated working pattern, realize utilizing as much as possible solar energy, with the civil power auxiliary power supply, proof load can be worked sustainedly and stably in the situation of solar energy deficiency.
Description of drawings
Fig. 1 is the structured flowchart of electric power system of the present invention.
Fig. 2 is the circuit theory diagrams of electric power system of the present invention.
Fig. 3～Fig. 5 is respectively three kinds of operation mode energy flow schematic diagrames of electric power system of the present invention.
Fig. 6 is the control circuit structural representation of electric power system of the present invention.
Fig. 7～Fig. 9 is respectively three kinds of operation mode schematic diagrames of control of power supply system circuit of the present invention.
Main label title in the above-mentioned accompanying drawing: PV is photovoltaic array; V
gBe line voltage (mains input voltage); C
In1Be input filter capacitor; L
F1, L
F2, L
F3, L
F4Be filter inductance; Q
1Be the Boost switching tube; Q
2Be Boost PFC switching tube; T
rBe isolating transformer; R
LdBe load; V
oBe system's output voltage; i
Pv_fBe the sampling of photovoltaic array output current; v
Pv_fBe the sampling of photovoltaic array output voltage; v
O_fBe the sampling of dc bus output voltage; i
In2_fBe the sampling of pfc converter inductive current; i
In1_ref, i
In2_refBe respectively first, second current comparator reference value; Q
D1Be Boost switching tube (Q
1) the driving signal; Q
D2Be Boost PFC (Q
2) the driving signal.
Embodiment
The structure of electric power system of the present invention as shown in Figure 1, comprise photovoltaic array, mains supply, DC/DC converter, PFC (power factor correction) converter and DC/AC inverter, wherein: the output of photovoltaic array is by DC/DC converter access dc bus, the output of mains supply accesses dc bus by pfc converter, the input of DC/AC inverter is connected into dc bus, and the AC load of exporting to of DC/AC inverter is powered.
The physical circuit of electric power system of the present invention as shown in Figure 2.The DC/DC converter is to be composed in series successively by Boost circuit 1, full-bridge converter 2 and current rectifying and wave filtering circuit 3; Pfc converter connects Boost pfc circuit 5 by PFC rectification circuit 4 and forms; The DC/AC inverter connects filtering output circuit 7 by inverter circuit 6 and forms.Wherein: Boost circuit 1 is connected in parallel on the positive-negative output end of photovoltaic array PV; Full-bridge converter 2 is by switching tube Q
R1, Q
R3The leading-bridge that is composed in series and switching tube Q
R2, Q
R4The lagging leg that is composed in series composes in parallel, isolating transformer T
rTwo ends, former limit be connected two diode D of the Same Name of Ends of its secondary and current rectifying and wave filtering circuit 3 with the series connection node of the switching tube of lead and lag two brachium pontis respectively
B1, D
B3The series connection node be connected different name end and other two diode D
B2, D
B4The series connection node be connected; The structure of current rectifying and wave filtering circuit 3 is: two diode D
B1, D
B3The series arm that is composed in series and other two diode D
B2, D
B4The series arm that is composed in series is in parallel, filter inductance L
F3With filter capacitor C
F3In parallel with the diode series arm after the series connection; The structure of PFC rectification circuit 4 is: two diode D
B5, D
B7The series arm that is composed in series and other two diode D
B6, D
B8The series arm that is composed in series is in parallel; Boost pfc circuit 5 is by filter inductance L
F2, Boost PFC switching tube Q
2, sustained diode
2, filter capacitor C
F2Form; Inverter circuit 6 is by switching tube Q
R5, Q
R7The leading-bridge that is composed in series and switching tube Q
R6, Q
R8The lagging leg that is composed in series composes in parallel; Filtering output circuit 7 is by filter inductance L
F4, filter capacitor C
F4And load R
LdForm.Above-mentioned switching tube Q
R1～Q
R8We adopt MOSFET, and it is all with parasitic body diode.
In order to take full advantage of solar energy, to bring into play the effectiveness of photovoltaic array to greatest extent, must make photovoltaic array constantly be operated in the maximum power point place, namely need to adopt the MPPT maximum power point tracking technology.Present solar cell MPPT maximum power point tracking technology control algolithm has a variety of, and the present invention adopts disturbance observation (Perturbation ﹠amp; Observation, P﹠amp; O).
The below is according to power output and the load of photovoltaic array, and narrates three kinds of operation mode energy flow situations of electric power system of the present invention in conjunction with Fig. 3～Fig. 5.
System works pattern 1[is as shown in Figure 3]: the peak power output of photovoltaic array is greater than the load power demand, and control DC/DC converter is operated in and is input as pressure constant state, and photovoltaic array provides separately the load power demand, and pfc converter is not worked.
System works pattern 2[is as shown in Figure 4]: the peak power output of photovoltaic array is less than the load power demand, control DC/DC converter is operated in MPPT (Maximum Power Point Tracking, MPPT, MPPT maximum power point tracking) state, simultaneously pfc converter work, mains supply provides load required dump power.
System works mode 3 [as shown in Figure 5]: photovoltaic array can't work, and closes the DC/DC converter, and pfc converter works alone, and provides separately the load power demand by civil power.
The objective of the invention is to use to greatest extent in the situation that proof load works constantly solar energy, this just need to manage the energy of whole system.The control circuit structure of electric power system of the present invention as shown in Figure 6, concrete structure is as follows:
Photovoltaic array output current, voltage sample i
Pv_f, v
Pv_fAccess MPPT controller, the output of MPPT controller (photovoltaic array maximum power point current i
Pv_m) the access adder, the output of adder and photovoltaic array output current sampling i
Pv_fAccess the first subtracter, the first subtracter is successively by output Boost switching tube Q behind the first current regulator, the first pwm circuit and the first gate drive circuit
1Driving signal Q
D1Voltage comparator reference value v
O_refWith dc bus output voltage sampling v
O_fAccess the second subtracter, the output access voltage regulator of the second subtracter, one tunnel output of voltage regulator and sinusoidal steamed bun ripple access multiplier, another road output is by blocking diode D
cAccess adder and ground connection, the output of multiplier and pfc converter inductive current sampling i
In2_fAccess the 3rd subtracter, the 3rd subtracter is successively by output Boost PFC switching tube Q behind the second current regulator, the second pwm circuit and the second gate drive circuit
2Driving signal Q
D2
The operation mode of the below's electric power system according to the present invention, and in conjunction with Fig. 7～Fig. 9 the energy control method of native system is elaborated.
System works is at pattern 1[as shown in Figure 7], namely the peak power output of photovoltaic array is powered to the load separately by photovoltaic array greater than the load power demand.If keep voltage given reference value v in the MPPT controller
In1_ref=v
Pv_m, then photovoltaic array is operated in maximum power point, and its power output causes DC bus-bar voltage to raise greater than the load power demand.At this moment voltage regulator is output as negative value, makes Boost PFC switching tube Q
2Duty ratio be 0, make simultaneously D
cConducting, the output of voltage regulator makes v as adjusting signal
In1_refReduce, namely reduce the output current of solar cell, this moment, voltage regulator and the first current regulator formed two closed loops, and electric current loop is interior ring, and Voltage loop is outer shroud, regulates Boost switching tube Q in the DC/DC converter
1Duty ratio make DC bus-bar voltage stable.
System works is at pattern 2[as shown in Figure 8], namely the peak power output of photovoltaic array is powered to the load by photovoltaic array and civil power simultaneously less than the load power demand.This moment, voltage regulator was regulated Boost PFC switching tube Q
2The Duty ratio control DC bus-bar voltage, D
cBlocking-up, the two-way control circuit works alone.Wherein the MPPT controller calculates photovoltaic array maximum power point voltage value v
Pv_mBenchmark as the first current regulator is given, makes the photovoltaic array Maximum Power Output, and deficit power is provided by civil power.
System works namely in the situation of night or rainy weather, when photovoltaic array can't be worked, is closed the DC/DC converter at mode 3 [as shown in Figure 9], provides the load power demand by civil power.Voltage regulator is regulated Boost PFC switching tube Q
2Duty ratio, guarantee that DC bus-bar voltage is constant.
Specific embodiment data of the present invention are as follows: photovoltaic array input voltage V
PV=28～37V; Civil power input direct voltage V
g=220VAC ± 20%; Output DC bus-bar voltage V
Bus=380V; System's output current (load current) I
o=5.3A; Filter inductance L
F1=90uH, L
F2=300uH, L
F3=290uH; Transformer T
rFormer secondary no-load voltage ratio: 0.231; Output filter capacitor C
F1=220uF, C
F2=560uF * 3; Switch mosfet pipe Q
1Adopt IPP111N15N3, Q
2Adopt SPW47N60C3, Q
R1, Q
R2, Q
R3, Q
R4Adopt FADP42AN15A; Sustained diode
1Adopt V60200PG, D
2Adopt DSEI30-06A; Transformer secondary rectifier diode D
B1, D
B2, D
B3, D
B4Adopt STPSC806D; PFC rectifier diode D
B5, D
B6, D
B7, D
B8Adopt KBPC3508; Switching frequency f
s=100kHz.
Claims (1)
1. the control method of a photovoltaic and civil power associating electric power system, it is characterized in that: this control method based on the structure of electric power system comprise photovoltaic array, mains supply, DC/DC converter, pfc converter and DC/AC inverter, wherein: the output of photovoltaic array is by DC/DC converter access dc bus, the output of mains supply accesses dc bus by pfc converter, the input of DC/AC inverter is connected into dc bus, and the output of DC/AC inverter connects load;
Described DC/DC converter is to be composed in series successively by Boost circuit (1), full-bridge converter (2) and current rectifying and wave filtering circuit (3), the input of Boost circuit (1) connects the output of photovoltaic array, the output access dc bus of current rectifying and wave filtering circuit (3) comprises a Boost switching tube (Q in the Boost circuit (1)
1);
Described pfc converter connects BoostPFC circuit (5) by PFC rectification circuit (4) and forms, the input of PFC rectification circuit (4) connects the output of mains supply, the output access dc bus of Boost pfc circuit (5) comprises a Boost PFC switching tube (Q in the Boost pfc circuit (5)
2);
The control circuit that this control method adopts is divided into two-way, is specially:
Photovoltaic array output current, voltage sample (i
Pv_f, v
Pv_f) access MPPT controller, the output access adder of MPPT controller, the output of adder and photovoltaic array output current sampling (i
Pv_f) access the first subtracter, the output of the first subtracter is successively by the first current regulator, the first pwm circuit be connected and connect Boost switching tube (Q behind the gate drive circuit
1); Voltage comparator reference value (v
O_ref) and dc bus output voltage sampling (v
O_f) access the second subtracter, the output access voltage regulator of the second subtracter, one tunnel output of voltage regulator and sinusoidal steamed bun ripple access multiplier, another road output is by blocking diode (D
c) the access adder, the output of multiplier and pfc converter inductive current sampling (i
In2_f) access the 3rd subtracter, the output of the 3rd subtracter is successively by the second current regulator, the second pwm circuit be connected and connect Boost PFC switching tube (Q behind the gate drive circuit
2);
This control method comprises following content:
When the peak power output of photovoltaic array during greater than the load power demand, powered to the load separately by photovoltaic array, DC bus-bar voltage raises, and it is negative that voltage regulator is output as, Boost PFC switching tube (Q
2) duty ratio be 0, make simultaneously blocking diode (D
c) conducting, the output of voltage regulator makes voltage given reference value (v in the MPPT controller as adjusting signal
In1_ref) reduce, this moment, voltage regulator and the first current regulator formed two closed loops, made the dc bus voltage stabilizing, were in the voltage stabilizing state;
When the peak power output of photovoltaic array during less than the load power demand, powered to the load simultaneously by photovoltaic array and mains supply, this moment, voltage regulator was regulated Boost PFC switching tube (Q
2) the Duty ratio control DC bus-bar voltage, blocking diode (D
c) blocking-up, the two-way control circuit works alone, the photovoltaic array maximum power point voltage value (v that the MPPT controller calculates
Pv_m) given as the benchmark of the first current regulator, making the photovoltaic array Maximum Power Output, deficit power is provided by mains supply;
When photovoltaic array can't be worked, close the DC/DC converter, powered to the load by mains supply, voltage regulator is regulated Boost PFC switching tube (Q
2) the Duty ratio control DC bus-bar voltage, make DC bus-bar voltage constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102630337A CN101951011B (en) | 2010-08-25 | 2010-08-25 | Solar photovoltaic and commercial power combined power supply system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102630337A CN101951011B (en) | 2010-08-25 | 2010-08-25 | Solar photovoltaic and commercial power combined power supply system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101951011A CN101951011A (en) | 2011-01-19 |
| CN101951011B true CN101951011B (en) | 2013-01-23 |
Family
ID=43454402
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|---|---|---|---|
| CN2010102630337A Expired - Fee Related CN101951011B (en) | 2010-08-25 | 2010-08-25 | Solar photovoltaic and commercial power combined power supply system and control method thereof |
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| CN108899989A (en) * | 2018-07-27 | 2018-11-27 | 苏州伟创电气设备技术有限公司 | A kind of alternating current-direct current automatic switchover power supply system |
| CN111256345B (en) * | 2018-11-30 | 2021-05-07 | 杭州先途电子有限公司 | Photovoltaic air conditioner control method, controller and photovoltaic air conditioner |
| CN109861380A (en) * | 2019-02-28 | 2019-06-07 | 苏州浪潮智能科技有限公司 | DC load power supply system, method, apparatus and computer readable storage medium |
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| CN111969716A (en) * | 2020-08-17 | 2020-11-20 | 博阳能源科技有限公司 | Multi-power supply complementary power supply device and control method thereof |
| CN112366696A (en) * | 2020-10-30 | 2021-02-12 | 浙江佳乐科仪股份有限公司 | Self-coordinated multi-element power supply system and frequency converter thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742246A (en) * | 2002-12-16 | 2006-03-01 | 国际整流器公司 | One cycle control continuous conduction mode PFC boost converter integrated circuit with integrated power switch and boost converter |
| CN101741133A (en) * | 2009-12-29 | 2010-06-16 | 哈尔滨工业大学 | Optical network hybrid power supply uniterruptable power supply having function of correcting power factor on network side |
-
2010
- 2010-08-25 CN CN2010102630337A patent/CN101951011B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742246A (en) * | 2002-12-16 | 2006-03-01 | 国际整流器公司 | One cycle control continuous conduction mode PFC boost converter integrated circuit with integrated power switch and boost converter |
| CN101741133A (en) * | 2009-12-29 | 2010-06-16 | 哈尔滨工业大学 | Optical network hybrid power supply uniterruptable power supply having function of correcting power factor on network side |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784011A (en) * | 2019-12-12 | 2020-02-11 | 芜湖倡蓝新能源科技有限责任公司 | Solar energy and commercial power hybrid power supply control air conditioner control mode |
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