CN109186099A - The impedance matching type water heater of photovoltaic DC power supply - Google Patents
The impedance matching type water heater of photovoltaic DC power supply Download PDFInfo
- Publication number
- CN109186099A CN109186099A CN201811013383.0A CN201811013383A CN109186099A CN 109186099 A CN109186099 A CN 109186099A CN 201811013383 A CN201811013383 A CN 201811013383A CN 109186099 A CN109186099 A CN 109186099A
- Authority
- CN
- China
- Prior art keywords
- power supply
- photovoltaic
- impedance
- water heater
- type water
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
-
- 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
-
- 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 present invention relates to the impedance matching type water heaters that a kind of technical field of water heater more particularly to a kind of photovoltaic DC are powered.The present invention is connected by the power supply outflow end of photovoltaic power supply system and the input terminal of impedance heating system, and the output end of impedance heating system flows into end with the power supply of photovoltaic power supply system and connect；The signal output end of current transformer and voltage transformer is connect with logic control system respectively in impedance heating system.The present invention uses photovoltaic power supply system directly to provide electric energy for impedance and heats, and adjustment impedance value is changed according to photovoltaic internal resistance, maximize photovoltaic power supply system delivery efficiency, effectively increase energy utilization rate, photovoltaic power supply system is directly connected to impedance system progress electric heating conversion and saves the intermediate links such as inverter, capital investment is not only saved, plant maintenance, maintenance cost are also reduced.
Description
Technical field
The present invention relates to the impedance matching type heat that a kind of technical field of water heater more particularly to a kind of photovoltaic DC are powered
Hydrophone.
Background technique
Heating is as the essential people's livelihood work of the Northeast's winter, always by the concern of government.In recent years
To reduce atmosphere pollution, improving efficiency of energy utilization, relevant department, which expressly provides, stops small-scale heating mode, is used uniformly collection
Middle heating mode.This measure drastically reduces atmosphere pollution and improves efficiency of energy utilization, but still remains some problems,
Such as: central heating fuel is based on coal, in fuel transport, storage and burning, flue gas emission, cinder processing, desulfurization, dedusting etc.
Aspect all there is a problem of many.
Summary of the invention
For above-mentioned problems of the prior art, the present invention provides a kind of impedance matching type heat of photovoltaic DC power supply
Hydrophone, it is therefore an objective to increase photovoltaic power supply heating, track photovoltaic maximum power point (mpp), improve energy utilization rate, collection is effectively reduced
The coal consumption amount of middle heating, energy conservation and environmental protection.
To achieve the above object of the invention, the present invention is achieved through the following technical solutions:
The impedance matching type water heater of photovoltaic DC power supply, by the power supply outflow end and impedance heating system of photovoltaic power supply system
Input terminal connection, the output end of impedance heating system flow into end with the power supply of photovoltaic power supply system and connect；In impedance heating system
The signal output end of current transformer and voltage transformer is connect with logic control system respectively.
Each impedor in the inside of the impedance heating system, which is adopted, to be connected serially, and one is respectively drawn at each node
Conducting wire is connect with the end of incoming cables of each A.C. contactor normally opened contact in counterlogic execution system, A.C. contactor normally opened contact
Leading-out terminal and the end of incoming cables of current transformer connect, the power supply of current transformer leading-out terminal and photovoltaic power supply system flows into end and connects
Connect, voltage transformer is connected in parallel on the both ends of impedance heating system, the signal output end of current transformer and voltage transformer with patrol
The analog-digital converter collected in execution system is connected.
The structure that the logic executes system is as follows: it is connected by the central processing unit of programmable controller with display,
The central processing unit of programmable controller is connected with analog-digital converter, the numeral output of the central processing unit of programmable controller
Point is connected with the end of incoming cables of corresponding A.C. contactor control coil in logic execution system, A.C. contactor control coil
Leading-out terminal is connect with mains neutral line.
The analog-digital converter uses Siemens EM235, and the central processing unit of programmable controller uses Siemens
224XP, display use step section MT4414T.
The impedance heating system is cut-off by control A.C. contactor normally opened contact, and adjustment is connected to photovoltaic power supply system
The impedance value at both ends, to obtain maximum power；By the voltage value at voltage transformer real-time detection impedor both ends, signal is detected
The analog-digital converter being sent in logic execution system；By the current value flowed through in current transformer real-time detection impedor,
Detection signal is sent to the analog-digital converter in logic execution system.
The logic executes system and is sent out by the operation to time, geographical location and photovoltaic system parameter volume of data
It instructs out and gives A.C. contactor control coil, and then correspond to A.C. contactor normally opened contact in control photovoltaic impedance heating system and connect
Through and off are opened, to change the quantity for the impedor devoted oneself to work；By current transformer and voltage transformer detected value, light is obtained
As auxiliary control foundation after the power that volt power supply system exports in real time, with theoretical value comparison.
Due to the adoption of the above technical scheme, so that the invention has the advantages that and effect:
The present invention uses photovoltaic power supply system directly to provide electric energy for impedance and heats, and changes adjustment resistance according to photovoltaic internal resistance
Anti- value maximizes photovoltaic power supply system delivery efficiency, effectively increases energy utilization rate, photovoltaic power supply system is directly connected to hinder
Anti- system carries out electricity → hot-cast socket and saves the intermediate links such as inverter, not only saves capital investment, also reduces plant maintenance, dimension
Repair expense.
In the following with reference to the drawings and specific embodiments, the present invention is described in further detail, but not by the present embodiment institute
Limit.Following embodiment is only specific embodiments of the present invention, but the design concept of the present invention is not limited to this, all to utilize this structure
Think of makes a non-material change to the present invention, and should all belong to behavior that violates the scope of protection of the present invention.
Detailed description of the invention
Fig. 1 is the circuit block diagram of the impedance matching type water heater of photovoltaic DC power supply of the present invention.
In figure: photovoltaic power supply system 1, impedance heating system 2, logic execute system 3, the central processing of programmable controller
Device 4, voltage transformer 5, current transformer 6, analog-digital converter 7, display 8, A.C. contactor normally opened contact 9, ac contactor
Device control coil 10, impedor 11.
Specific embodiment
The present invention is a kind of impedance matching type water heater of photovoltaic DC power supply, as shown in Figure 1, photovoltaic DC of the present invention supplies
The structure of the impedance matching type water heater of electricity is as follows: the input of the power supply outflow end and impedance heating system 2 of photovoltaic power supply system 1
End connection, the output end of impedance heating system 2 flow into end with the power supply of photovoltaic power supply system 1 and connect.It is electric in impedance heating system 2
The signal output end of current transformer 6 and voltage transformer 5 is connect with logic control system 3 respectively.
The structure of the impedance heating system 2 is as follows: each impedor 11 in the inside of impedance heating system 2 uses series system
Connection, respectively draws a conducting wire at each node and counterlogic executes each A.C. contactor normally opened contact 9 in system 3
End of incoming cables connection, the leading-out terminal of A.C. contactor normally opened contact 9 are connect with the end of incoming cables of current transformer 6, and current transformer 6 goes out
Line end flows into end with the power supply of photovoltaic power supply system 1 and connect, and voltage transformer 5 is connected in parallel on the both ends of impedance heating system 2, electric current
The signal output end of mutual inductor 6 and voltage transformer 5 executes the analog-digital converter 7 in system 3 with logic and is connected.
The structure that the logic executes system 3 is as follows: the central processing unit 4 of programmable controller is connected with display 8,
The central processing unit 4 of programmable controller is connected with analog-digital converter 7, the number of the central processing unit 4 of programmable controller
Output point is connected with the end of incoming cables of corresponding A.C. contactor control coil 10 in logic execution system, A.C. contactor control
The leading-out terminal of coil 10 is connect with mains neutral line.
The analog-digital converter 7 uses Siemens EM235, and the central processing unit of programmable controller uses Siemens
224XP, display 8 use step section MT4414T.Other components are existing commercial product, are field common knowledge, do not do in detail
Description.
Working principle of the present invention is as follows:
The working principle of impedance heating system 2 is that, by cut-offfing for control A.C. contactor normally opened contact 9, adjustment is connected to photovoltaic
The impedance value at 1 both ends of power supply system, to obtain maximum power.Pass through the electricity at 5 real-time detection impedor of voltage transformer, 11 both ends
Pressure value, detection signal are sent to the analog-digital converter 7 in logic execution system 3.Pass through 6 real-time detection impedor of current transformer
The current value flowed through in 11, detection signal are sent to the analog-digital converter 7 in logic execution system 3.
The logic executes the working principle of system 3 are as follows: by time, geographical location and photovoltaic system parameter etc. one
The operation of series data issues instructions to A.C. contactor control coil, and then controls corresponding in photovoltaic impedance heating system 2 hand over
The connecting and disconnecting of contactor normally opened contact 9 are flowed, to change the quantity for the impedor 11 devoted oneself to work.Pass through current transformer 6
With 5 detected value of voltage transformer, the power that photovoltaic power supply system 1 exports in real time is obtained, is controlled with after theoretical value comparison as auxiliary
Foundation processed.
Claims (6)
1. the impedance matching type water heater of photovoltaic DC power supply, it is characterised in that: the power supply outflow end of photovoltaic power supply system and resistance
The input terminal of anti-heating system connects, and the output end of impedance heating system flows into end with the power supply of photovoltaic power supply system and connect；Resistance
The signal output end of current transformer and voltage transformer is connect with logic control system respectively in anti-heating system.
2. the impedance matching type water heater of photovoltaic DC power supply according to claim 1, it is characterised in that: the impedance adds
Each impedor in the inside of hot systems, which is adopted, to be connected serially, and a conducting wire is respectively drawn at each node and counterlogic executes
The end of incoming cables connection of each A.C. contactor normally opened contact, the leading-out terminal and Current Mutual Inductance of A.C. contactor normally opened contact in system
The end of incoming cables of device connects, and current transformer leading-out terminal flows into end with the power supply of photovoltaic power supply system and connect, and voltage transformer is in parallel
At the both ends of impedance heating system, the signal output end and the modulus in logic execution system of current transformer and voltage transformer
Converter is connected.
3. the impedance matching type water heater of photovoltaic DC power supply according to claim 1, it is characterised in that: the logic is held
The structure of row system is as follows: it is connected by the central processing unit of programmable controller with display, the center of programmable controller
Processor is connected with analog-digital converter, in the numeral output point and logic execution system of the central processing unit of programmable controller
The end of incoming cables of corresponding A.C. contactor control coil is connected, the leading-out terminal and mains neutral line of A.C. contactor control coil
Connection.
4. the impedance matching type water heater of photovoltaic DC power supply according to claim 3, it is characterised in that: the modulus turns
Parallel operation uses Siemens EM235, and the central processing unit of programmable controller uses Siemens 224XP, and display uses step section
MT4414T。
5. the impedance matching type water heater of photovoltaic DC power supply according to claim 1, it is characterised in that: the impedance adds
Hot systems are cut-off by control A.C. contactor normally opened contact, and adjustment is connected to the impedance value at photovoltaic power supply system both ends, to obtain
Obtain maximum power；By the voltage value at voltage transformer real-time detection impedor both ends, detection signal is sent to logic and executes system
Analog-digital converter in system；By the current value flowed through in current transformer real-time detection impedor, detection signal, which is sent to, is patrolled
Collect the analog-digital converter in execution system.
6. the impedance matching type water heater of photovoltaic DC power supply according to claim 1, it is characterised in that: the logic is held
Row system issues instructions to A.C. contactor by the operation to time, geographical location and photovoltaic system parameter volume of data
Control coil, and then control in photovoltaic impedance heating system and correspond to A.C. contactor normally opened contact connecting and disconnecting, it is thrown with changing
Enter the quantity of the impedor of work；By current transformer and voltage transformer detected value, it is defeated in real time to obtain photovoltaic power supply system
As auxiliary control foundation after power out, with theoretical value comparison.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013383.0A CN109186099A (en) | 2018-08-31 | 2018-08-31 | The impedance matching type water heater of photovoltaic DC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013383.0A CN109186099A (en) | 2018-08-31 | 2018-08-31 | The impedance matching type water heater of photovoltaic DC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109186099A true CN109186099A (en) | 2019-01-11 |
Family
ID=64917470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811013383.0A Pending CN109186099A (en) | 2018-08-31 | 2018-08-31 | The impedance matching type water heater of photovoltaic DC power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109186099A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444976A (en) * | 2010-10-02 | 2012-05-09 | 许明德 | Photovoltaic water heater |
| CN203432085U (en) * | 2013-07-02 | 2014-02-12 | 云南品森科技有限公司 | Impedance matching solar photovoltaic water heating device |
| CN106288318A (en) * | 2015-05-25 | 2017-01-04 | 郭洪雨 | A kind of electricity-saving water heater system |
| CN107453613A (en) * | 2017-08-31 | 2017-12-08 | 青岛大学 | A kind of solar electric water heater photovoltaic supply convertor and control method |
| CN107733233A (en) * | 2017-08-31 | 2018-02-23 | 青岛大学 | A kind of Large Copacity solar electric water heater alternating expression photo-voltaic power supply converter and control method |
| CA2984227A1 (en) * | 2016-10-28 | 2018-04-28 | Rheem Australia Pty Limited | A system, apparatus and method for efficient use of solar photovoltaic energy |
| CN108028533A (en) * | 2015-07-14 | 2018-05-11 | 迪吉罗格科技有限公司 | Hybrid solar power control system |
| CN208983624U (en) * | 2018-08-31 | 2019-06-14 | 国网辽宁省电力有限公司经济技术研究院 | The impedance matching type water heater of photovoltaic DC power supply |
-
2018
- 2018-08-31 CN CN201811013383.0A patent/CN109186099A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444976A (en) * | 2010-10-02 | 2012-05-09 | 许明德 | Photovoltaic water heater |
| CN203432085U (en) * | 2013-07-02 | 2014-02-12 | 云南品森科技有限公司 | Impedance matching solar photovoltaic water heating device |
| CN106288318A (en) * | 2015-05-25 | 2017-01-04 | 郭洪雨 | A kind of electricity-saving water heater system |
| CN108028533A (en) * | 2015-07-14 | 2018-05-11 | 迪吉罗格科技有限公司 | Hybrid solar power control system |
| CA2984227A1 (en) * | 2016-10-28 | 2018-04-28 | Rheem Australia Pty Limited | A system, apparatus and method for efficient use of solar photovoltaic energy |
| CN107453613A (en) * | 2017-08-31 | 2017-12-08 | 青岛大学 | A kind of solar electric water heater photovoltaic supply convertor and control method |
| CN107733233A (en) * | 2017-08-31 | 2018-02-23 | 青岛大学 | A kind of Large Copacity solar electric water heater alternating expression photo-voltaic power supply converter and control method |
| CN208983624U (en) * | 2018-08-31 | 2019-06-14 | 国网辽宁省电力有限公司经济技术研究院 | The impedance matching type water heater of photovoltaic DC power supply |
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