CN106014953A - Photovoltaic pump controller with automatic preheating function and control method - Google Patents
Photovoltaic pump controller with automatic preheating function and control method Download PDFInfo
- Publication number
- CN106014953A CN106014953A CN201610597022.XA CN201610597022A CN106014953A CN 106014953 A CN106014953 A CN 106014953A CN 201610597022 A CN201610597022 A CN 201610597022A CN 106014953 A CN106014953 A CN 106014953A
- Authority
- CN
- China
- Prior art keywords
- water pump
- photovoltaic
- temperature
- photovoltaic water
- pump controller
- 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.)
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Classifications
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- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0244—Heating of fluids
-
- 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
- F04B2207/00—External parameters
- F04B2207/03—External temperature
-
- 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
Abstract
The invention provides a photovoltaic pump controller with an automatic preheating function and a control method. The photovoltaic pump controller comprises a photovoltaic pump controller body connected to a photovoltaic input cable between a photovoltaic battery assembly and a photovoltaic pump, and a photovoltaic pump control inverter circuit is arranged in the photovoltaic pump controller body. The photovoltaic pump controller is characterized in that a direct current electric heating element powered by the photovoltaic battery assembly to heat the photovoltaic pump controller body is additionally arranged, and power supply of the direct current electric heating element is controlled by a direct current relay; a temperature detection control circuit powered by the photovoltaic battery assembly is additionally arranged; a temperature sensor for detecting the temperature in the photovoltaic pump controller body in real time is connected to the temperature detection control circuit, the temperature detection control circuit controls the direct current relay to connect or disconnect the photovoltaic battery assembly with the direct current electric heating element, and when it is detected that the temperature of the photovoltaic pump controller body is higher than the minimum temperature for starting the photovoltaic pump for running, the temperature detection control circuit sends equipment ready signals to the photovoltaic pump control inverter circuit, and the photovoltaic pump runs.
Description
Technical field
The present invention relates to a kind of photovoltaic water pump controller, the photovoltaic water pump controller of a kind of automatic preheating and control method.
Background technology
One of core component as water pumping system, photovoltaic water pump controller in whole water pumping system to operational efficiency, reliability and the factor of life-span important.When photovoltaic water pump system is applied in high and cold or high altitude localities, morning, the sun just rose, and when photovoltaic water pump controller prepares to start photovoltaic water pump, temperature photovoltaic water pump controller within is likely below-10 DEG C, it could even be possible to be less than-20 DEG C.Start photovoltaic water pump in this case and control inverter circuit output, the elements such as the electronic devices and components within photovoltaic water pump controller, particularly electrochemical capacitor will be caused serious impact, the most then cause the photovoltaic water pump controller lost of life, heavy then cause components and parts to burn, controller failure.Therefore, design that a kind of to be suitable for photovoltaic water pump controller that high and cold or high altitude localities uses for the application of photovoltaic water pump be the most necessary, be also these remote high and cold or high altitude localitiess need water pumping system especially and so far owing to cold-starting problem is the most effectively promoted and obtains the key point of use.
Summary of the invention
It is an object of the invention in the case of having substantially no effect on photovoltaic water pump whole day entirety water yield, utilize the strongest electric energy that photovoltaic module sends morning, preheating for photovoltaic water pump controller self, run, in the case of preventing controller internal temperature being too low in the morning, the damage caused, improve equipment dependability, extend controller service life.
In order to reach above-mentioned technology requirement, the photovoltaic water pump controller of the automatic preheating of the present invention is achieved through the following technical solutions: it includes being connected to the photovoltaic water pump controller on photovoltaic input cable between photovoltaic cell component and photovoltaic water pump, inverter circuit is controlled for photovoltaic water pump in photovoltaic water pump controller, it is characterized in that setting up a set of unidirectional current heating element heater that photovoltaic water pump controller is heated, unidirectional current heating element heater is powered by photovoltaic cell component, photovoltaic cell component to the power supply of unidirectional current heating element heater by DC relay control；Setting up a set of temperature detection control circuit, and be connected with photovoltaic input cable, temperature detection control circuit is powered by photovoltaic cell component；Temperature detection control circuit connects and has the temperature sensor detecting photovoltaic water pump controller internal temperature in real time, according to the temperature detected, temperature detection control circuit controls DC relay and is turned on or off the connection of photovoltaic cell component and unidirectional current heating element heater, when temperature sensor the temperature of photovoltaic water pump controller detected higher than preset can start minimum temperature that photovoltaic water pump runs time, temperature detection control circuit controls inverter circuit to photovoltaic water pump and sends the signal of ER equipment ready；Run when photovoltaic water pump controls to start photovoltaic water pump after inverter circuit receives ER equipment ready signal.
Described unidirectional current heating element heater is resistive unidirectional current heating element heater.
The control method of the photovoltaic water pump controller of described automatic preheating: when having faint sunlight morning, sunlight strength now the most not up to can start the degree that photovoltaic water pump runs, temperature detection control circuit starts to start, after startup, temperature detection control circuit cancels ER equipment ready signal, and now photovoltaic water pump controls inverter circuit and will not be energized operation；After temperature detection control circuit starts, temperature sensor detects the real time temperature in current photovoltaic water pump controller, when detecting temperature less than minimum temperature set in advance, temperature detection control circuit controls DC relay, unidirectional current heating element heater is made to connect with photovoltaic cell component, utilizing the strongest, photovoltaic water pump controller is internally heated by the photovoltaic energy being also not enough to start photovoltaic water pump operation;In heating process, when temperature detection control circuit detects that photovoltaic water pump controller temperature reaches predetermined temperature, disconnecting DC relay, stop heating, temperature detection control circuit is simultaneously emitted by ER equipment ready signal；Process in heating, the sun gradually rises, sunlight power is the most enhanced, it is properly functioning that photovoltaic water pump controls to begin to start photovoltaic water pump after inverter circuit obtains ER equipment ready signal, after photovoltaic water pump controller runs, due to the heating of self, the temperature of photovoltaic water pump controller is maintained more than minimum temperature set in advance；In the morning, if after temperature detection control circuit starts, when temperature sensor detects the temperature of photovoltaic water pump controller higher than predetermined temperature, the most do not start unidirectional current heating element heater, and directly outut device standby ready signal, start photovoltaic water pump properly functioning.
Present invention utilizes conventional photovoltaic water pump and export energy compared with the photovoltaic module small-power under Low light intensity unserviceable morning, control to improve the temperature within photovoltaic water pump controller before inverter circuit starts at photovoltaic water pump, ensure that the normal startup optimization of photovoltaic water pump, this invention need not the energy-storage travelling wave tubes such as extra accumulator, avoid energy-storage travelling wave tube and can cause system manufacture and the increase of maintenance cost and the pollution to environment, and improve reliability and the service life of system, solve at the remote high and cold or application problem of high altitude localities photovoltaic water pump.
Accompanying drawing explanation
Fig. 1 is the electrical schematic of the photovoltaic water pump controller of automatic preheating.
In figure: 1, photovoltaic cell component；2, photovoltaic water pump；3, photovoltaic input cable；4, photovoltaic water pump controller；5, unidirectional current heating element heater；6, DC relay；7, temperature detection control circuit；8, temperature sensor.
Detailed description of the invention
Below by embodiment and combine accompanying drawing the invention will be further described.
Fig. 1 is the schematic diagram of the photovoltaic water pump controller of automatic preheating.As seen from the figure,
It includes being connected to the photovoltaic water pump controller 4 on photovoltaic input cable 3 between photovoltaic cell component 1 and photovoltaic water pump 2, inverter circuit is controlled for photovoltaic water pump in photovoltaic water pump controller 4, and set up a set of unidirectional current heating element heater 5 that photovoltaic water pump controller 4 is heated, described unidirectional current heating element heater 5 is resistive unidirectional current heating element heater, its resistance is R, input direct-current photovoltaic voltage is U, then its electrical heating power P=U produced2/R.Unidirectional current heating element heater 5 is powered by photovoltaic cell component 1, and the power supply of unidirectional current heating element heater 5 is controlled by photovoltaic cell component 1 by DC relay 6；Separately setting up a set of temperature detection control circuit 7, and be connected with photovoltaic input cable 3, temperature detection control circuit 8 is powered by photovoltaic cell component 1；Temperature detection control circuit 7 connects and has the temperature sensor 8 detecting photovoltaic water pump controller 4 internal temperature in real time, the temperature detected according to temperature sensor 8, temperature detection control circuit 8 controls DC relay 6 and is turned on or off photovoltaic cell component 1 connection with unidirectional current heating element heater 5, when temperature sensor 8 temperature of photovoltaic water pump controller 4 detected higher than preset can start minimum temperature that photovoltaic water pump 2 runs time, temperature detection control circuit 7 controls inverter circuit to photovoltaic water pump and sends the signal of ER equipment ready；Run when photovoltaic water pump controls to start photovoltaic water pump 2 after inverter circuit receives ER equipment ready signal.
The control method of the photovoltaic water pump controller of above-mentioned automatic preheating: when having faint sunlight morning, sunlight strength now the most not up to can start the degree that photovoltaic water pump 2 runs, temperature detection control circuit 7 starts to start, after startup, temperature detection control circuit 7 cancels ER equipment ready signal, and now photovoltaic water pump controls inverter circuit and will not be energized operation.After temperature detection control circuit 7 starts, temperature sensor 8 detects the real time temperature in current photovoltaic water pump controller 4, when detecting temperature less than minimum temperature set in advance, temperature detection control circuit 7 controls DC relay 6, unidirectional current heating element heater 6 and photovoltaic cell group 1 is made to connect, utilizing the strongest, photovoltaic water pump controller 4 is internally heated by the photovoltaic energy being also not enough to start photovoltaic water pump 2 operation.In heating process, when temperature detection control circuit 7 detects that photovoltaic water pump controller 4 temperature reaches predetermined temperature, disconnecting DC relay 6, stop heating, temperature detection control circuit 7 is simultaneously emitted by ER equipment ready signal.Process in heating, the sun gradually rises, sunlight power is the most enhanced, it is properly functioning that photovoltaic water pump controls to begin to start photovoltaic water pump 2 after inverter circuit obtains ER equipment ready signal, after photovoltaic water pump controller 4 runs, due to the heating of self, the temperature of photovoltaic water pump controller 4 is maintained more than minimum temperature set in advance.In the morning, if after temperature detection control circuit 7 starts, when temperature sensor 8 detects the temperature of photovoltaic water pump controller 4 higher than predetermined temperature, the most do not start unidirectional current heating element heater 5, and direct outut device standby ready signal, start photovoltaic water pump 2 properly functioning.
Claims (3)
1. the photovoltaic water pump controller of automatic preheating, it includes being connected to the photovoltaic water pump controller on photovoltaic input cable between photovoltaic cell component and photovoltaic water pump, inverter circuit is controlled for photovoltaic water pump in photovoltaic water pump controller, it is characterized in that setting up a set of unidirectional current heating element heater that photovoltaic water pump controller is heated, unidirectional current heating element heater is powered by photovoltaic cell component, photovoltaic cell component to the power supply of unidirectional current heating element heater by DC relay control；Setting up a set of temperature detection control circuit, and be connected with photovoltaic input cable, temperature detection control circuit is powered by photovoltaic cell component；Temperature detection control circuit connects and has the temperature sensor detecting photovoltaic water pump controller internal temperature in real time, according to the temperature detected, temperature detection control circuit controls DC relay and is turned on or off the connection of photovoltaic cell component and unidirectional current heating element heater, when temperature sensor the temperature of photovoltaic water pump controller detected higher than preset can start minimum temperature that photovoltaic water pump runs time, temperature detection control circuit controls inverter circuit to photovoltaic water pump and sends the signal of ER equipment ready；Run when photovoltaic water pump controls to start photovoltaic water pump after inverter circuit receives ER equipment ready signal.
The photovoltaic water pump controller of automatic preheating the most according to claim 1, is characterized in that described unidirectional current heating element heater is resistive unidirectional current heating element heater.
3. the control method of the photovoltaic water pump controller of automatic preheating: it is characterized in that when having faint sunlight morning, sunlight strength now the most not up to can start the degree that photovoltaic water pump runs, temperature detection control circuit starts to start, after startup, temperature detection control circuit cancels ER equipment ready signal, and now photovoltaic water pump controls inverter circuit and will not be energized operation；After temperature detection control circuit starts, temperature sensor detects the real time temperature in current photovoltaic water pump controller, when detecting temperature less than minimum temperature set in advance, temperature detection control circuit controls DC relay, unidirectional current heating element heater is made to connect with photovoltaic cell component, utilizing the strongest, photovoltaic water pump controller is internally heated by the photovoltaic energy being also not enough to start photovoltaic water pump operation;In heating process, when temperature detection control circuit detects that photovoltaic water pump controller temperature reaches predetermined temperature, disconnecting DC relay, stop heating, temperature detection control circuit is simultaneously emitted by ER equipment ready signal；Process in heating, the sun gradually rises, sunlight power is the most enhanced, it is properly functioning that photovoltaic water pump controls to begin to start photovoltaic water pump after inverter circuit obtains ER equipment ready signal, after photovoltaic water pump controller runs, due to the heating of self, the temperature of photovoltaic water pump controller is maintained more than minimum temperature set in advance；In the morning, if after temperature detection control circuit starts, when temperature sensor detects the temperature of photovoltaic water pump controller higher than predetermined temperature, the most do not start unidirectional current heating element heater, and directly outut device standby ready signal, start photovoltaic water pump properly functioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610597022.XA CN106014953B (en) | 2016-07-25 | 2016-07-25 | The photovoltaic water pump controller and control method of automatic preheating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610597022.XA CN106014953B (en) | 2016-07-25 | 2016-07-25 | The photovoltaic water pump controller and control method of automatic preheating |
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| CN106014953A true CN106014953A (en) | 2016-10-12 |
| CN106014953B CN106014953B (en) | 2017-11-10 |
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| CN201610597022.XA Active CN106014953B (en) | 2016-07-25 | 2016-07-25 | The photovoltaic water pump controller and control method of automatic preheating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087256A (en) * | 2017-12-25 | 2018-05-29 | 陈益德 | A kind of photovoltaic water pump controller of automatic preheating |
| CN111720873A (en) * | 2019-03-20 | 2020-09-29 | 江苏和网源电气有限公司 | Photovoltaic is cloud control heat preservation system for water lift |
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| DE202014101916U1 (en) * | 2013-04-29 | 2014-05-12 | Sma Solar Technology Ag | Inverter for feeding electrical power into a power grid and photovoltaic system |
| CN204945837U (en) * | 2015-09-11 | 2016-01-06 | 合肥聚能新能源科技有限公司 | A kind of photovoltaic converter thermostatic control system for high and low temperature environment |
| CN205841169U (en) * | 2016-07-25 | 2016-12-28 | 浙江天赐新能源科技有限公司 | The photovoltaic water pump controller of automatic preheating |
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2016
- 2016-07-25 CN CN201610597022.XA patent/CN106014953B/en active Active
Patent Citations (6)
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| EP2528179A1 (en) * | 2011-05-27 | 2012-11-28 | ABB Oy | Converter arrangement and method in connection with converter arrangement |
| CN102520744A (en) * | 2011-12-12 | 2012-06-27 | 合肥聚能新能源科技有限公司 | Thermostatic control system of photovoltaic constant temperature current transformer |
| DE202014101916U1 (en) * | 2013-04-29 | 2014-05-12 | Sma Solar Technology Ag | Inverter for feeding electrical power into a power grid and photovoltaic system |
| CN103257661A (en) * | 2013-06-06 | 2013-08-21 | 无锡上能新能源有限公司 | Preheating dehumidification method applied to photovoltaic inverter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087256A (en) * | 2017-12-25 | 2018-05-29 | 陈益德 | A kind of photovoltaic water pump controller of automatic preheating |
| CN111720873A (en) * | 2019-03-20 | 2020-09-29 | 江苏和网源电气有限公司 | Photovoltaic is cloud control heat preservation system for water lift |
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| Publication number | Publication date |
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| CN106014953B (en) | 2017-11-10 |
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