CN203617723U - Hybrid inverter - Google Patents
Hybrid inverter Download PDFInfo
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- CN203617723U CN203617723U CN201320803735.9U CN201320803735U CN203617723U CN 203617723 U CN203617723 U CN 203617723U CN 201320803735 U CN201320803735 U CN 201320803735U CN 203617723 U CN203617723 U CN 203617723U
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- inverter
- digital signal
- signal processor
- load equipment
- storage chip
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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
- 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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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Abstract
The utility model discloses a hybrid inverter. The hybrid inverter comprises an inverter body connected with load equipment, wherein the inverter body is connected with a main control computer; the inverter body is connected with a photovoltaic cell, a storage battery and a public power grid respectively; a digital signal processor for receiving and processing physical quantity measured by a measuring device, a storage chip for storing operating data of the inverter and a relay set for converting a control signal are all arranged in the inverter body; a thyristor is connected to one relay used for controlling the load equipment in the relay set in parallel, the digital signal processor and the storage chip are in signal connection, the relay set is in signal connection with the digital signal processor through a driving circuit, and the storage chip and the driving circuit are in signal connection. The hybrid inverter is simple in structure, can independently regulate work modes according to power generation conditions and power utilization conditions, improves utilization rate of solar energy while guaranteeing the power utilization needs of the load equipment, and can guarantee uninterruptible power supply for the load equipment.
Description
Technical field
The utility model relates to the technical field of solar power plant, particularly a kind of hybrid inverter.
Background technology
Inverter claims again feed regulator isolator, and the purposes according to inverter in photovoltaic generating system can be divided into two kinds of off-grid type inverter and parallel net type inverters; Off-grid type inverter is self power supply inverter.Can be divided into again square-wave inverter, ladder inverter, sinewave inverter and Three-Phase Inverter according to waveform modulated mode.For the inverter for grid-connected system, according to there being transless can be divided into again transformer type inverter and inverter without transformer.In China the Eleventh Five-Year Plan period, photovoltaic generations such as inverter, corollary equipment many places are in research and development and innovation stage, and the less policy that is subject to is paid close attention to.In " 12 " period, the trend in photovoltaic generation market is that the corollary equipment beyond crystal silicon, assembly will receive the further concern of market and policy to full industrial chain development, and the Committee of Development and Reform lists inverter in guidance list and encourages class, is exactly the embodiment of this trend.2010, the grid-connected capacity of China reached 500 megawatts, and inverter market is 500,000,000 yuan of left and right.In June, 2011, " 12 " domestic photovoltaic installed capacity target is transferred to 10GW on significantly, and the target of announcing before has been turned over some.Suppose that these installations are all grid-connected, calculate according to 1 yuan of/watt of cost, expect 2015, domestic inverter market will reach 10,000,000,000 yuan.Along with the continuous aggravation of photovoltaic DC-to-AC converter industry competition, between large-sized photovoltaic inverter enterprise, M&A integration and capital operation are increased, domestic outstanding photovoltaic DC-to-AC converter manufacturing enterprise more and more payes attention to the research to industry market, particularly the further investigation to Business Development Environment and the variation of customer demand trend.Just because of this, large quantities of domestic outstanding photovoltaic DC-to-AC converter brands emerge rapidly, become gradually the outstanding figure in photovoltaic DC-to-AC converter industry.
Parallel net type inverter can only be used for generating electricity by way of merging two or more grid systems, while existing solar irradiation weak from net inverter, the shortcoming that load electricity consumption is restricted, both cannot regulate the actual demand that meets user according to actual conditions, and therefore its structure is further improved.
Need to design a kind of advantage grid-connected and that generate electricity from net that has concurrently in order to overcome the shortcoming of present device, can make full use of photovoltaic energy, can guarantee again the photovoltaic power generation apparatus of user's functional need.
Summary of the invention
Technical problem to be solved in the utility model is the present situation for prior art, provides simple in structure, can carry out autonomous adjusting working mode according to generating situation and electricity consumption situation, and a kind of hybrid inverter of the uninterrupted power supply of energy proof load equipment.
The utility model solves the problems of the technologies described above adopted technical scheme:
A kind of hybrid inverter, include the inverter body being connected with load equipment, inverter body is connected with main control computer, wherein, inverter body respectively with photovoltaic cell, storage battery and public electric wire net are connected, in inverter body, be provided with for receiving, the digital signal processor of the physical quantity that processing measurement mechanism records, for storing the storage chip of invertor operation data and the relay group for changeover control signal, a controllable silicon in parallel on relay for control load in relay group, digital signal processor is connected with storage chip signal, relay group is connected with digital signal processor signal by drive circuit, storage chip is connected with drive circuit signal.
For optimizing technique scheme, the concrete measure of taking also comprises:
Between above-mentioned measurement mechanism and digital signal processor, be provided with A/D converter.
Above-mentioned measurement mechanism is voltmeter, ammeter, thermometer and other physical index measurement mechanisms.
Above-mentioned digital signal processor is connected with main control computer by interface circuit.
Above-mentioned digital signal processor is connected with display by interface circuit.
Above-mentioned display is LCD liquid crystal display screen display or light-emitting diode display.
Above-mentioned storage chip is EPROM.
Above-mentioned mode of operation is grid-connected pattern, from net pattern and bypass mode.
Compared with prior art, a kind of hybrid inverter of the utility model, include the inverter body being connected with load equipment, inverter body is connected with main control computer, wherein, inverter body respectively with photovoltaic cell, storage battery and public electric wire net are connected, in inverter body, be provided with for receiving, the digital signal processor of the physical quantity that processing measurement mechanism records, storage chip and relay group, digital signal processor is connected with storage chip signal, relay group is connected with digital signal processor signal by drive circuit, storage chip is connected with drive circuit signal, measurement mechanism is measured the physical quantity such as electric current, voltage of photovoltaic cell, storage battery, public electric wire net and load in real time, digital signal processor receives, processes the physical quantity that measurement mechanism records, judge the electricity consumption situation of generating situation and load, select mode of operation and send control signal according to judged result, control signal is powered by rear photovoltaic cell, storage battery and the public electric wire net controlled of relay group conversion, thereby realizes real-time monitoring and the control to generating equipment and load equipment, meanwhile, reception data and judged result are sent to main control computer by digital signal processor, so that operating personnel monitor and operate long-range.When load model conversion, first conducting controllable silicon, then complete the conversion of relay group, and then cut off controllable silicon, utilize controllable silicon as a transition, the uninterrupted power supply of proof load equipment.
Hybrid inverter of the present utility model can, according to real-time generating situation and electricity consumption situation, independently be selected mode of operation: grid-connected pattern, from net pattern and bypass mode.Under grid-connected pattern, electricity is delivered to public electric wire net by photovoltaic cell, and power to load equipment; Under net pattern, photovoltaic cell and storage battery are powered to load equipment; Under bypass mode, public electric wire net is directly powered to load equipment.Select different patterns to power to load equipment according to different illumination conditions, in abundant proof load equipment need for electricity, effectively improve the utilization ratio to solar energy, be specially adapted to the occasion that electrical network is unstable or mains supply cost is higher.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Embodiment as shown in Figure 1, figure grade explanation: inverter body 1, load equipment 21, photovoltaic cell 22, storage battery 23, public electric wire net 24, main control computer 3, interface circuit 31, measurement mechanism 4, A/D converter 41, digital signal processor 5, storage chip 6, relay group 7, drive circuit 71, controllable silicon 8, display 9.
The utility model
A kind of hybrid inverter, include the inverter body 1 being connected with load equipment 21, inverter body 1 is connected with main control computer 3, wherein, inverter body 1 respectively with photovoltaic cell 22, storage battery 23 and public electric wire net 24 are connected, in inverter body 1, be provided with for receiving, the digital signal processor 5 of the physical quantity that processing measurement mechanism 4 records, for storing the storage chip 6 of invertor operation data and the relay group 7 for changeover control signal, a controllable silicon 8 in parallel on relay for control load 21 in relay group 7, digital signal processor 5 is connected with storage chip 6 signals, relay group 7 is connected with digital signal processor 5 signals by drive circuit 71, storage chip 6 is connected with drive circuit 71 signals, digital signal processor 5 receives, processes the physical quantity that measurement mechanism 4 records and judges generating situation and electricity consumption situation, selects mode of operation also to send control signal.
In embodiment, between measurement mechanism 4 and digital signal processor 5, be provided with A/D converter 41.
In embodiment, measurement mechanism 4 is voltmeter, ammeter, thermometer and other physical indexs.
In embodiment, digital signal processor 5 is connected with main control computer 3 by interface circuit 31.
In embodiment, digital signal processor 5 is connected with display 9 by interface circuit 31.
In embodiment, display 9 is LCD liquid crystal display screen display or light-emitting diode display.
Display 9 can show physical quantity that measurement mechanism 4 that digital signal processor 5 receives records and the operation conditions of equipment in real time, so that manager and operating personnel can carry out real-time monitoring long-range, facilitate operating personnel to understand the operation conditions of equipment, also facilitated manager to overall control and scheduling.
In embodiment, storage chip 6 is EPROM.The data that EPROM can produce when the computing system, process, and the artificial data that arrange give storage, and operating personnel can transfer data by main control computer 3 from EPROM, the ruuning situation that understanding equipment is passing, and revise the data parameters arranging.EPROM has the feature wiping and write of can repeating, and is convenient to the modification of data, is conducive to the long-term stability operation of equipment.
In embodiment, mode of operation is grid-connected pattern, from net pattern and bypass mode.
Grid-connected pattern: photovoltaic cell 22 generatings are delivered to public electric wire net 24 and power to load equipment 21.
From net pattern: photovoltaic cell 22 and storage battery 23 are powered to load equipment 21.
Bypass mode: public electric wire net 24 is directly powered to load equipment 21.
According to the electricity consumption situation of generating situation and load equipment 21, hybrid inverter is independently selected mode of operation.When sufficient at sunshine, utilize photovoltaic cell 22 to generate electricity, energy-conserving and environment-protective; When faint at sunshine, photovoltaic cell 22 can not the situation of normal power generation under, provide power supply by storage battery 23 and public electric wire net 24, and in the time that public electric wire net 24 is unstable, photovoltaic cell 22 and storage battery 23 provide power supply for load equipment 21.Photovoltaic cell 22, storage battery 23 and public electric wire net 24 three's complementations, in proof load equipment 21 needs for electricity, improve the utilization ratio of solar energy; Its overcome that existing solar inverter can only generate electricity by way of merging two or more grid systems and from net inverter in the time that solar irradiation is weak, the shortcoming that load electricity consumption is restricted, the stability of proof load equipment 21 electricity consumptions.It is applicable to the occasion that electrical network is unstable or mains supply cost is higher.
In the switching of pattern conversion, especially, in grid-connected pattern with when switching between net pattern, require load equipment 21 uninterrupted power supplies; Although the switching of relay group 7 only needs several milliseconds,, to user, sometimes the instant cut-off of several milliseconds is also unallowed.This hybrid inverter is a controllable silicon 8 in parallel in relay group 7, in relay group 7 not when adhesive, the contact of relay group 7 is in open mode, in the time that digital signal processor 5 detects needs and switches from net pattern, first by controllable silicon 8 conductings, power to load equipment 21 by controllable silicon 8, and then control relay group 7 is changed, cut off by the relay group 7 under proterotype, and by relay group 7 adhesives under new model; After relay group 7 adhesives under new model, controllable silicon 8 is disconnected, like this, just guarantee the uninterrupted power supply of load equipment 21.
A control method for hybrid inverter, comprises the following steps:
Step 1, measurement mechanism 4 are measured energy output, the reserve of electricity of storage battery 23 and the power consumption of load equipment 21 of photovoltaic cell 22, and whether have civil power, and measured physical quantity is sent to digital signal processor 5 if measuring public electric wire net 24 simultaneously; The real-time load equipment 21 of measurement mechanism 4, photovoltaic cell 22, storage battery 23 and the public electric wire nets 24 such as voltmeter, ammeter, thermometer, other physical quantitys are measured, and the physical quantity measuring are sent to after A/D converter 41 is changed to digital signal processor 5;
Step 2, digital signal processor 5 receive, process Physical Quantity Calculation that measurement mechanism 4 records, judge generating situation and electricity consumption situation; Digital signal processor 5 receives after the physical quantity that measurement mechanism 4 measures, after calculating, process by FUZZY ALGORITHMS FOR CONTROL, judgement draws real-time generating situation and electricity consumption situation, and the generating situation that the physical quantity obtaining and judgement are drawn and electricity consumption situation reach storage chip 6 and store;
Step 3, digital signal processor 5 are selected mode of operation and send control signal according to judged result, relay group 7 receives, changeover control signal, and control appliance operation, when load model conversion, first conducting controllable silicon 8, complete again relay group 7 and change, then cut off controllable silicon 8, the uninterrupted power supply of proof load equipment 21; Digital signal processor 5 draws real-time generating situation and electricity consumption situation and the parameter setting in advance according to judgement, the suitable mode of operation of autonomous selection, when the proof load equipment that is chosen in 21 need for electricity of mode of operation, utilize solar power generation power supply with photovoltaic cell 22 as far as possible;
Reception data and judged result are sent to main control computer 3 by step 4, digital signal processor 5, carries out remote monitoring and control for operating personnel; Operating personnel can understand at any time the operation conditions of equipment and control on main control computer 3, can also modify to the parameter arranging; Simultaneously digital signal processor 5 is sent to display 9 by reception data and judged result and shows, so that manager carries out long-range monitoring and scheduling.
Most preferred embodiment of the present utility model is illustrated, and the various variations of being made by those of ordinary skills or remodeling can not depart from scope of the present utility model.
Claims (6)
1. a hybrid inverter, include the inverter body (1) being connected with load equipment (21), described inverter body (1) is connected with main control computer (3), it is characterized in that: described inverter body (1) respectively with photovoltaic cell (22), storage battery (23) and public electric wire net (24) are connected, in described inverter body (1), be provided with for receiving, the digital signal processor (5) of the physical quantity that processing measurement mechanism (4) records, for storing the storage chip (6) of invertor operation data and the relay group (7) for changeover control signal, between described measurement mechanism (4) and digital signal processor (5), be provided with A/D converter (41), a controllable silicon in parallel (8) on relay for control load (21) in described relay group (7), described digital signal processor (5) is connected with storage chip (6) signal, described relay group (7) is connected with digital signal processor (5) signal by drive circuit (71), described storage chip (6) is connected with drive circuit (71) signal.
2. a kind of hybrid inverter according to claim 1, is characterized in that: described measurement mechanism (4) is voltmeter, ammeter, thermometer and Pressure gauge.
3. a kind of hybrid inverter according to claim 1, is characterized in that: described digital signal processor (5) is connected with main control computer (3) by interface circuit (31).
4. a kind of hybrid inverter according to claim 1, is characterized in that: described digital signal processor (5) is connected with display (8) by interface circuit (31).
5. a kind of hybrid inverter according to claim 4, is characterized in that: described display (8) is LCD display or light-emitting diode display.
6. a kind of hybrid inverter according to claim 1, is characterized in that: described storage chip (6) is EPROM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803735.9U CN203617723U (en) | 2013-12-10 | 2013-12-10 | Hybrid inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803735.9U CN203617723U (en) | 2013-12-10 | 2013-12-10 | Hybrid inverter |
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| CN203617723U true CN203617723U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320803735.9U Expired - Fee Related CN203617723U (en) | 2013-12-10 | 2013-12-10 | Hybrid inverter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787111A (en) * | 2017-01-13 | 2017-05-31 | 安徽工程大学 | A kind of timesharing bi-directional voltage stabilizing hybrid inverter and its control method |
-
2013
- 2013-12-10 CN CN201320803735.9U patent/CN203617723U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787111A (en) * | 2017-01-13 | 2017-05-31 | 安徽工程大学 | A kind of timesharing bi-directional voltage stabilizing hybrid inverter and its control method |
| CN106787111B (en) * | 2017-01-13 | 2023-08-04 | 安徽工程大学 | Time-sharing bidirectional voltage-stabilizing hybrid inverter and control method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20181210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |