CN105720891A - Photovoltaic water pump system with super-frequency control device and super-frequency control method of photovoltaic water pump system - Google Patents
Photovoltaic water pump system with super-frequency control device and super-frequency control method of photovoltaic water pump system Download PDFInfo
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- CN105720891A CN105720891A CN201610227027.3A CN201610227027A CN105720891A CN 105720891 A CN105720891 A CN 105720891A CN 201610227027 A CN201610227027 A CN 201610227027A CN 105720891 A CN105720891 A CN 105720891A
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- Prior art keywords
- photovoltaic water
- water pump
- control device
- frequency control
- solar panel
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/006—Solar operated
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses a photovoltaic water pump system with a super-frequency control device and a super-frequency control method of the photovoltaic water pump system. The system comprises a solar panel square array, the super-frequency control device, a photovoltaic water lifting inverter and a high-frequency photovoltaic water pump, wherein the solar panel square array is used for converting solar energy to direct current and outputting the direct current to the photovoltaic water lifting inverter, the photovoltaic water lifting inverter is used for converting the direct current output from the solar panel square array to alternating current which can be used for directly driving a motor, and supplying the alternating current to the photovoltaic water pump so as to drive the photovoltaic water pump to operate, the super-frequency control device is used for detecting output power of the solar panel square array, and controlling the photovoltaic water lifting inverter to output alternating current with frequency of over 50 hertz to the high-frequency photovoltaic water pump when the output power of the solar panel square array exceeds the rated power of the photovoltaic water pump, so that higher delivery lift and flow of the photovoltaic water pump are acquired. By the system, higher delivery lift and flow can be acquired on the same condition, and the utilization ratio on the output power of the solar square array also can be improved.
Description
Technical field
The present invention relates to photovoltaic applied technical field, be specifically related to a kind of photovoltaic water pump system with super audio-frequency control device and overclocking control method thereof.
Background technology
In photovoltaic water pump system of the prior art, the unidirectional current that solar panel square formation produces by photovoltaic water-raising inverter be converted into can the alternating current of direct-driving motor, directly for photovoltaic water pump offer power supply, it is achieved the work of photovoltaic water-raising system.
For the water discharging time extending photovoltaic water pump every day and the normal operation ensureing system, in common photovoltaic water pump system designs, the power of solar panels square formation is usually about 1.3～1.5 times of pump power, so when abundance at sunshine on daytime, the exportable power of solar panels square formation often exceeds pump power, even if at this moment photovoltaic water-raising inverter has the maximum power tracing function of solar electrical energy generation, highest frequency yet with inverter output can only achieve 50 hertz, therefore the highest frequency of water pump operation also can only achieve 50 hertz, even if at this moment sunlight strong pump-out again is without there being increase again, unnecessary solar electrical energy generation power can not be fully used.
Summary of the invention
It is an object of the invention to provide a kind of photovoltaic water pump system with super audio-frequency control device and overclocking control method thereof, in order to solve the problem that solar electrical energy generation power unnecessary in prior art can not be fully used, bigger economic benefit can be obtained.
For achieving the above object, the photovoltaic water pump system with super audio-frequency control device of the present invention includes solar panel square formation, super audio-frequency control device, photovoltaic water-raising inverter and high frequency photovoltaic water pump, described solar panel square formation is connected with super audio-frequency control device and photovoltaic water-raising inverter respectively, super audio-frequency control device is connected with photovoltaic water-raising inverter, and photovoltaic water-raising inverter and high frequency photovoltaic water pump connect；Described solar panel square formation is used for converting the solar into unidirectional current and exporting unidirectional current to photovoltaic water-raising inverter, described photovoltaic water-raising inverter for the unidirectional current that solar panel square formation exports is converted to can the alternating current of direct-driving motor this alternating current is supplied to high frequency photovoltaic water pump, thus driving high frequency light FUSHUI pump operation；Described super audio-frequency control device is for detecting the output of solar panel square formation, when the output of solar panel square formation exceedes the rated power of photovoltaic water pump, described super audio-frequency control device controls photovoltaic water-raising inverter and exports the alternating current of 50 hertz of frequencies above to high frequency photovoltaic water pump, thus obtaining higher high frequency light FUSHUI pump lift and flow, produce bigger economic benefit.
Described high frequency photovoltaic water pump is the photovoltaic water pump that can run under 50 hertz and following alternating current and can run under the alternating current of 50 hertz of frequencies above.
1.3-1.6 times of the rated power that power is high frequency photovoltaic water pump of described solar panel square formation.
1.5 times of the rated power that power is high frequency photovoltaic water pump of described solar panel square formation.
The cathode output end of described solar panel square formation is connected to the positive pole test side of super audio-frequency control device and the electrode input end of photovoltaic water-raising inverter, and the cathode output end of solar panel square formation is connected to the negative pole test side of super audio-frequency control device and the negative input of photovoltaic water-raising inverter.
The FREQUENCY CONTROL outfan of described super audio-frequency control device is connected to the frequency control input of photovoltaic water-raising inverter, the power control output of super audio-frequency control device is connected to the power control input of photovoltaic water-raising inverter, and the ac output end of photovoltaic water-raising inverter connects the ac input end of high frequency photovoltaic water pump.
The overclocking control method of the photovoltaic water pump system with super audio-frequency control device of the present invention comprises the following steps:
Start solar panel square formation, solar panel square formation convert the solar into unidirectional current and export unidirectional current to photovoltaic water-raising inverter；
Photovoltaic water-raising inverter the unidirectional current that solar panel square formation exports is converted to can the alternating current of direct-driving motor this alternating current is supplied to high frequency photovoltaic water pump, thus driving high frequency light FUSHUI pump operation；
The output of super audio-frequency control device detection solar panel square formation, when the output of solar panel square formation exceedes the rated power of photovoltaic water pump, described super audio-frequency control device controls photovoltaic water-raising inverter and exports the alternating current of 50 hertz of frequencies above to high frequency photovoltaic water pump, thus improving high frequency light FUSHUI pump lift and flow.
Present invention have the advantage that the method that the present invention passes through to adopt overclocking to control detects the output size of solar battery, control output frequency and the power of photovoltaic water-raising inverter, when solar panel square formation output is sufficiently large, the frequency controlling D/A convertor for pump driven by photocell output more than 50 hertz meets the high frequency photovoltaic water pump higher pump head of acquisition and flow, thus the output utilization ratio of solar panel square formation is greatly improved, higher economic benefit when comparable applications, can be created.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of the photovoltaic water pump system with super audio-frequency control device of the present invention.
Fig. 2 is the circuit connection diagram of the photovoltaic water pump system with super audio-frequency control device of the present invention.
Detailed description of the invention
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
As shown in Figure 1, the photovoltaic water pump system with super audio-frequency control device of the present invention includes solar panel square formation 1, super audio-frequency control device 2, photovoltaic water-raising inverter 3 and high frequency photovoltaic water pump 4, described solar panel square formation 1 is connected with super audio-frequency control device 2 and photovoltaic water-raising inverter 3 respectively, super audio-frequency control device 2 is connected with photovoltaic water-raising inverter 3, and photovoltaic water-raising inverter 3 and high frequency photovoltaic water pump 4 connect；Described solar panel square formation 1 is used for converting the solar into unidirectional current and exporting unidirectional current to photovoltaic water-raising inverter 3, described photovoltaic water-raising inverter 3 for the unidirectional current that solar panel square formation 1 exports is converted to can the alternating current of direct-driving motor this alternating current is supplied to high frequency photovoltaic water pump 4, thus driving high frequency photovoltaic water pump 4 to run；Described super audio-frequency control device 2 is for detecting the output of solar panel square formation 1, when the output of solar panel square formation 1 exceedes the rated power of high frequency photovoltaic water pump 4, described super audio-frequency control device 2 controls photovoltaic water-raising inverter 3 and exports the alternating current of 50 hertz of frequencies above to high frequency photovoltaic water pump 4, thus improving high frequency light FUSHUI pump lift and flow.
The high frequency photovoltaic water pump of such as configuration photovoltaic water pump to be rated power be P (not only can run under 50 hertz and following alternating current but also can run under the alternating current of 50 hertz of frequencies above photovoltaic water pump), the power of configuration solar panel square formation is 1.5P, when the output that super audio-frequency control device 2 detects solar panel square formation 1 exceedes the rated power P of high frequency photovoltaic water pump, described super audio-frequency control device 2 controls photovoltaic water-raising inverter 3 and exports the frequency of more than 50 hertz to meet the operation of high frequency photovoltaic water pump to high frequency photovoltaic water pump, therefore the photovoltaic water pump system with super audio-frequency control device of the present invention is used under equal conditions both can to have obtained higher lift and flow, improve again the utilization ratio of solar battery output.
1.3-1.6 times of the rated power that power is high frequency photovoltaic water pump of described solar panel square formation.
The circuit connecting relation of the photovoltaic water pump system of the present invention is further illustrated below in conjunction with Fig. 2.As shown in Figure 2, the cathode output end PV1+ of solar panel square formation 1 is connected to the positive pole test side PV2+ of super audio-frequency control device and the electrode input end PV3+ of photovoltaic water-raising inverter 3, the cathode output end PV1-of solar panel square formation 1 is connected to the negative pole test side PV2-of super audio-frequency control device and the negative input PV3-of photovoltaic water-raising inverter 3, the FREQUENCY CONTROL output terminals A 1 of super audio-frequency control device 2 is connected to the frequency control input A2 of photovoltaic water-raising inverter 3, the power control output B1 of super audio-frequency control device 2 is connected to the power control input B2 of photovoltaic water-raising inverter 3, ac output end (the U of photovoltaic water-raising inverter 3, V, W) ac input end of high frequency photovoltaic water pump is connected.
The overclocking control method of the photovoltaic water pump system with super audio-frequency control device of the present invention comprises the following steps:
Start solar panel square formation, solar panel square formation convert the solar into unidirectional current and export unidirectional current to photovoltaic water-raising inverter；
Photovoltaic water-raising inverter the unidirectional current that solar panel square formation exports is converted to can the alternating current of direct-driving motor this alternating current is supplied to high frequency photovoltaic water pump, thus driving high frequency light FUSHUI pump operation；
The output of super audio-frequency control device detection solar panel square formation, when the output of solar panel square formation exceedes the rated power of high frequency photovoltaic water pump, described super audio-frequency control device controls photovoltaic water-raising inverter and exports the alternating current of 50 hertz of frequencies above to photovoltaic water pump, thus obtaining lift and the flow of higher photovoltaic water pump.
Although, above with generality explanation and specific embodiment, the present invention is described in detail, but on basis of the present invention, it is possible to it is made some modifications or improvements, and this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (10)
1. a photovoltaic water pump system with super audio-frequency control device, it is characterized in that, described photovoltaic water pump system includes solar panel square formation, super audio-frequency control device, photovoltaic water-raising inverter and high frequency photovoltaic water pump, described solar panel square formation is connected with super audio-frequency control device and photovoltaic water-raising inverter respectively, super audio-frequency control device is connected with photovoltaic water-raising inverter, and photovoltaic water-raising inverter and high frequency photovoltaic water pump connect；Described solar panel square formation is used for converting the solar into unidirectional current and exporting unidirectional current to photovoltaic water-raising inverter, described photovoltaic water-raising inverter for the unidirectional current that solar panel square formation exports is converted to can the alternating current of direct-driving motor this alternating current is supplied to high frequency photovoltaic water pump, thus driving high frequency light FUSHUI pump operation；Described super audio-frequency control device is for detecting the output of solar panel square formation, when the output of solar panel square formation exceedes the rated power of high frequency photovoltaic water pump, described super audio-frequency control device controls photovoltaic water-raising inverter and exports the alternating current of 50 hertz of frequencies above to high frequency photovoltaic water pump, thus obtaining higher high frequency light FUSHUI pump lift and flow.
2. there is the photovoltaic water pump system of super audio-frequency control device as claimed in claim 1, it is characterised in that described high frequency photovoltaic water pump is the photovoltaic water pump that can run under 50 hertz and following alternating current and can run under the alternating current of 50 hertz of frequencies above.
3. there is the photovoltaic water pump system of super audio-frequency control device as claimed in claim 2, it is characterised in that 1.3-1.6 times of the rated power that power is high frequency photovoltaic water pump of described solar panel square formation.
4. there is the photovoltaic water pump system of super audio-frequency control device as claimed in claim 3, it is characterised in that 1.5 times of the rated power that power is high frequency photovoltaic water pump of described solar panel square formation.
5. there is the photovoltaic water pump system of super audio-frequency control device as claimed in claim 4, it is characterized in that, the cathode output end of described solar panel square formation is connected to the positive pole test side of super audio-frequency control device and the electrode input end of photovoltaic water-raising inverter, and the cathode output end of solar panel square formation is connected to the negative pole test side of super audio-frequency control device and the negative input of photovoltaic water-raising inverter.
6. there is the photovoltaic water pump system of super audio-frequency control device as claimed in claim 5, it is characterized in that, the FREQUENCY CONTROL outfan of described super audio-frequency control device is connected to the frequency control input of photovoltaic water-raising inverter, the power control output of super audio-frequency control device is connected to the power control input of photovoltaic water-raising inverter, and the ac output end of photovoltaic water-raising inverter connects the ac input end of high frequency photovoltaic water pump.
7. there is the overclocking control method of the photovoltaic water pump system of super audio-frequency control device as claimed in claim 1, it is characterised in that this overclocking control method comprises the following steps:
Start solar panel square formation, solar panel square formation convert the solar into unidirectional current and export unidirectional current to photovoltaic water-raising inverter；
Photovoltaic water-raising inverter the unidirectional current that solar panel square formation exports is converted to can the alternating current of direct-driving motor this alternating current is supplied to high frequency photovoltaic water pump, thus driving high frequency light FUSHUI pump operation；
The output of super audio-frequency control device detection solar panel square formation, when the output of solar panel square formation exceedes the rated power of high frequency photovoltaic water pump, described super audio-frequency control device controls photovoltaic water-raising inverter and exports the alternating current of 50 hertz of frequencies above to high frequency photovoltaic water pump, thus obtaining higher high frequency light FUSHUI pump lift and flow.
8. there is the overclocking control method of the photovoltaic water pump system of super audio-frequency control device as claimed in claim 7, it is characterized in that, described high frequency photovoltaic water pump is the photovoltaic water pump that can run under 50 hertz and following alternating current and can run under the alternating current of 50 hertz of frequencies above.
9. there is the overclocking control method of the photovoltaic water pump system of super audio-frequency control device as claimed in claim 8, it is characterised in that 1.3-1.6 times of the rated power that power is high frequency photovoltaic water pump of described solar panel square formation.
10. there is the overclocking control method of the photovoltaic water pump system of super audio-frequency control device as claimed in claim 9, it is characterised in that 1.5 times of the rated power that power is high frequency photovoltaic water pump of described solar panel square formation.
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| CN201610227027.3A CN105720891A (en) | 2016-04-13 | 2016-04-13 | Photovoltaic water pump system with super-frequency control device and super-frequency control method of photovoltaic water pump system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106150962A (en) * | 2016-08-31 | 2016-11-23 | 成都振中电气有限公司 | The photovoltaic water-raising device of energy storage is carried out by water-retention |
| CN106194636A (en) * | 2016-08-31 | 2016-12-07 | 成都振中电气有限公司 | The photovoltaic water-raising system of high automatization |
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