CN104038150A - Modularized and centralized type photovoltaic power generation interface unit - Google Patents
Modularized and centralized type photovoltaic power generation interface unit Download PDFInfo
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- CN104038150A CN104038150A CN201410302931.7A CN201410302931A CN104038150A CN 104038150 A CN104038150 A CN 104038150A CN 201410302931 A CN201410302931 A CN 201410302931A CN 104038150 A CN104038150 A CN 104038150A
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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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Abstract
A modularized and centralized type photovoltaic power generation interface unit comprises a photovoltaic control module, a direct current bus, an inverter module, a centralized monitoring module, a main power distribution breaker, a load breaker and a storage battery charge-discharge module. One end of the photovoltaic control module is connected with a solar cell panel, and the other end of the photovoltaic control module is connected to the direct current bus. One end of the inverter module is connected to the direct current bus and used for converting direct currents into alternating currents to be output, and the other end of the inverter module is respectively connected with the main power distribution breaker and the load breaker. The storage battery charge-discharge module is connected to the direct current bus. The photovoltaic control module, the storage battery charge-discharge module, the inverter module, the main power distribution breaker and the load breaker are all in communication with the centralized monitoring module through CAN buses or RS485 serial ports, and the centralized monitoring module is provided with a display screen interface used for being connected with a display touch screen. The modularized and centralized type photovoltaic power generation interface unit has the advantages that the whole interface unit is simple in structure, clear in interface, convenient and fast to maintain, fast in expansion and high in utilization rate.
Description
Technical field
The invention belongs to particularly field of photovoltaic power generation of new forms of energy electric power, be specifically related to a kind of modularization, centralized photovoltaic generation interface arrangement.
Background technology
Solar energy, as a kind of inexhaustible, nexhaustible clean energy resource, is more and more widely used among people's production and life.Wherein solar photovoltaic technology is because it is flexible for installation, apply the advantages such as simple, and increasingly mature, the cost of technology reduces gradually in addition, become that country carries out energetically and one of power generation project of developing.And at present, on market, most of photovoltaic power generation equipment structures are more scattered, and its header box, controller, inverter, storage battery etc. all separate separately, and each component information shows separately, by cable, be connected each other, cause that whole photovoltaic generating system structure is numerous and diverse, volume is larger.Simultaneously conventional photovoltaic generating equipment mostly only can be by day and the more sufficient weather condition of sunlight under normally work, night, utilization rate of equipment and installations was low in stopped status.Its function is also more single, and most equipment is active power of output only.Once meanwhile conventional photovoltaic generating equipment forms, capacity is fixing, expands also cumbersome.
Summary of the invention
The technical problem to be solved in the present invention is, for existing photovoltaic power generation equipment above shortcomings, provides a kind of modularization, centralized photovoltaic generation interface arrangement, and whole apparatus structure is succinct, interface is clear, it is convenient to safeguard, dilatation is quick, utilance is high.
The present invention solves the problems of the technologies described above adopted technical scheme to be:
A kind of modularization, centralized photovoltaic generation interface arrangement, it comprises photovoltaic control module, DC bus, inverter module, centralized monitor module, main distribution circuit breaker, load breaker and accumulator cell charging and discharging module, and one end of described photovoltaic control module is connected with solar panel, the other end is connected on DC bus; One end of described inverter module is connected on DC bus, for direct current being changed into alternating current output, and the other end of inverter module is connected with main distribution circuit breaker, load breaker respectively; Described accumulator cell charging and discharging module is connected on DC bus; Described photovoltaic control module, accumulator cell charging and discharging module, inverter module, main distribution circuit breaker, load breaker are all connected with centralized monitor module communication by CAN bus or RS485 serial ports, and described centralized monitor module is provided with for the display screen interface with showing that touch-screen is connected.
Press such scheme, described photovoltaic control module, inverter module and accumulator cell charging and discharging module all adopt modular insert structure, and accumulator cell charging and discharging module is matched according to user's request.
Press such scheme, the quantity of described photovoltaic control module, inverter module, accumulator cell charging and discharging module is selected according to demand.
Press such scheme, described inverter module is provided with pure meritorious output inverter, reactive power compensation inverter, active filtering inverter (according to the configuration of user's request selectivity) by mode of operation difference.
Press such scheme, described photovoltaic control module comprises some the branch roads that conflux, cell panel temperature sensor, cell panel position transducer, sunlight position transducer, solar panel control motor, the first single-chip microcomputer and the first graphic alphanumeric display; Described each confluxes branch road for solar panel is connected to DC bus, described DC bus rear end is connected to load supplying through switch QS, on each branch road that confluxes, be equipped with lightning protection device, voltage sensor, current sensor simultaneously, described voltage sensor, current sensor, cell panel temperature sensor are connected to the first single-chip microcomputer (voltage sensor, current sensor are respectively used to monitor solar panel output voltage, electric current, and cell panel temperature sensor is used for monitoring solar cell plate temperature) by variable connector and AD converter; Described cell panel position transducer and sunlight position transducer are connected to the first single-chip microcomputer (cell panel position transducer and sunlight position transducer are respectively used to monitor the azimuth information of solar panel, sunlight) through photoisolator; Described solar panel is controlled motor and is connected to the first single-chip microcomputer by motor-drive circuit; Described the first single-chip microcomputer is connected with the first graphic alphanumeric display and centralized monitor module by communication interface.
Press such scheme, described accumulator cell charging and discharging module comprises storage battery, power tube, Battery temperature probe, power tube temperature sensor, second singlechip and second graph display, described storage battery is connected to DC bus through power tube, form charging and discharging circuit, in charging and discharging circuit, be equipped with voltage sensor, current sensor, described voltage sensor, current sensor, Battery temperature probe, power tube temperature sensor is connected to second singlechip (voltage sensor by variable connector and AD converter, current sensor is respectively used to monitor storage battery output voltage, electric current, Battery temperature probe is used for monitoring battery temp, power tube temperature sensor is for monitoring power tube temperature), described second singlechip is connected with second graph display and centralized monitor module by communication interface.
Press such scheme, the higher level who is reserved with in described centralized monitor module for higher level's scheduling transmits interface, and centralized monitor module transmits interface by higher level and is connected with background monitoring system communication.
The present invention compared with prior art, mainly has the following advantages:
1, this photovoltaic generation interface arrangement is by integrating spread module, space efficient, and reasonable disposition circuit, terminal with compact integral structure, interface are clear;
2, adopt modular insert structure, integrated multimode is in one, capacity extension is convenient, replacing is safeguarded fast, each module detect information exchange cross CAN bus or RS485 serial ports send into centralized monitor module concentrate monitoring, by showing the unified demonstration of touch-screen, reliability enhancing, be also more conducive to user and invest in batches;
3, the multiple-working mode of photovoltaic generation interface arrangement is set: meritorious output, reactive power compensation or active power filtering by different inverters, by the effective access point voltage that improves of arranging of multiple-working mode, in the heavy load time period at night, still can provide idle exerting oneself, improve the quality of power supply of circuit, greatly improve the utilance of photovoltaic generation interface arrangement, be more applicable for the photovoltaic generation Application of Interface of multiple occasion.
Accompanying drawing explanation
Fig. 1 is the schematic block diagram of modularization of the present invention, centralized photovoltaic generation interface arrangement;
Fig. 2 is the mounting structure schematic diagram of modularization of the present invention, centralized photovoltaic generation interface arrangement;
Fig. 3 is the fundamental diagram of photovoltaic control module of the present invention;
Fig. 4 is the fundamental diagram of accumulator cell charging and discharging module of the present invention;
Fig. 5 is the fundamental diagram of centralized monitor module of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.
Shown in Fig. 1, modularization of the present invention, centralized photovoltaic generation interface arrangement, it comprises photovoltaic control module, DC bus, inverter module, centralized monitor module, main distribution circuit breaker, load breaker and accumulator cell charging and discharging module, and one end of described photovoltaic control module is connected with solar panel, the other end is connected on DC bus; One end of described inverter module is connected on DC bus, for direct current being changed into alternating current output, and the other end of inverter module is connected respectively (main distribution circuit breaker is connected with electrical network) with main distribution circuit breaker, load breaker; Described accumulator cell charging and discharging module is connected on DC bus; Described photovoltaic control module, accumulator cell charging and discharging module, inverter module, main distribution circuit breaker, load breaker are all connected with centralized monitor module communication by CAN bus or RS485 serial ports, and described centralized monitor module is provided with for the display screen interface with showing that touch-screen is connected.
Shown in Fig. 2, described photovoltaic control module, inverter module and accumulator cell charging and discharging module all adopt modular insert structure and are arranged in a screen cabinet.The quantity of photovoltaic control module, inverter module, accumulator cell charging and discharging module is selected according to demand, facilitates dilatation and changes and safeguard; Each module is separate, integral structure, when several modules are worked simultaneously, for guaranteeing each module uniform output simultaneously, conventionally adopts the modes such as series resistance, makes balanced distribution of current/voltage in each module, makes each module balancing work, increases reliability.The photovoltaic generation interface arrangement showing in Fig. 2 is output as single phase alternating current (A.C.), can expand to three-phase alternating current equally grid-connected.Accumulator cell charging and discharging module is equipped with according to customer demand selectivity, and accumulator cell charging and discharging module is connected on DC bus, or installs according to concrete application demand is separated.
Described inverter module is provided with pure meritorious output inverter, reactive power compensation inverter, active filtering inverter by mode of operation difference, according to application scenario or user's request, switches the different mode of operation of different inverters coupling photovoltaic generation interface arrangement: a, the pure meritorious output inverter surplus of generating power for their own use; B, reactive power compensation inverter are administered the idle or harmonic wave in circuit; C, active filtering inverter are applicable to the user of line end.By switching different inverters, change equipment working methods, make it work in the states such as simple active power of output or reactive power compensation, active power filtering and compensate the quality of power supply.
With reference to the photovoltaic control module fundamental diagram shown in Fig. 3, described photovoltaic control module comprises some the branch roads that conflux, cell panel temperature sensor, cell panel position transducer, sunlight position transducer, solar panel control motor, the first single-chip microcomputer and the first graphic alphanumeric display; Described each confluxes branch road for solar panel is connected to DC bus, described DC bus rear end is connected to load supplying through switch QS, on each branch road that confluxes, be equipped with lightning protection device, voltage sensor, current sensor simultaneously, described voltage sensor, current sensor, cell panel temperature sensor are connected to the first single-chip microcomputer (voltage sensor, current sensor are respectively used to monitor solar panel output voltage, electric current, and cell panel temperature sensor is used for monitoring solar cell plate temperature) by variable connector and AD converter; Described cell panel position transducer and sunlight position transducer are connected to the first single-chip microcomputer through photoisolator; Described solar panel is controlled motor and is connected to the first single-chip microcomputer by motor-drive circuit; Described the first single-chip microcomputer is connected with the first graphic alphanumeric display and centralized monitor module by communication interface.The first single-chip microcomputer receives the solar cell plate temperature of cell panel temperature sensor monitors, the output current of the output voltage of voltage sensor monitoring, current sensor monitoring, cell panel position transducer and the solar panel of sunlight position transducer monitoring, the azimuth information of sunlight, and carry out state indication by the first graphic alphanumeric display, and realize communication function with centralized monitor module; Solar panel is controlled motor and for controlling the orientation of solar panel, is realized the tracking of sunlight, and wherein the control of the orientation of solar panel can be according to user's request setting.
With reference to the accumulator cell charging and discharging module fundamental diagram shown in Fig. 4, described accumulator cell charging and discharging module comprises storage battery, power tube, Battery temperature probe, power tube temperature sensor, second singlechip and second graph display, described storage battery is connected to DC bus through power tube, form charging and discharging circuit, in charging and discharging circuit, be equipped with voltage sensor, current sensor, described voltage sensor, current sensor, Battery temperature probe, power tube temperature sensor is connected to second singlechip (voltage sensor by variable connector and AD converter, current sensor is respectively used to monitor storage battery output voltage, electric current, Battery temperature probe is used for monitoring battery temp, power tube temperature sensor is for monitoring power tube temperature), described second singlechip is connected with second graph display and centralized monitor module by communication interface.The battery temp of the output current of the output voltage of second singlechip receiver voltage Sensor monitoring, current sensor monitoring, Battery temperature probe monitoring, the power tube temperature of power tube temperature sensor monitors, and carry out state indication by second graph display, and realize communication function with centralized monitor module, realize discharging and recharging of storage battery and control and temperature detection.The selectivity configuration according to demand of this accumulator cell charging and discharging module.
With reference to the centralized monitor module fundamental diagram shown in Fig. 5, each module monitors that centralized monitor module is whole photovoltaic generation interface arrangement provides man-machine interface, and each module detects information exchange and crosses CAN bus or RS485 and send into respectively centralized monitor module and concentrate monitoring.A centralized monitor module can be monitored a plurality of photovoltaic control modules, inverter module and accumulator cell charging and discharging module, centralized monitor module is responsible for DC bus, inverter module, the power status of main distribution circuit breaker, the load condition of load breaker to monitor, and carry out communication with photovoltaic control module, afterwards all information exchanges are crossed to display screen interface and be sent to demonstration touch-screen, user checks job information and the state of photovoltaic generation interface arrangement by showing touch-screen.Centralized monitor module is also to the load electricity consumption of output and grid-connected monitoring simultaneously.The higher level who is also reserved with in described centralized monitor module for higher level's scheduling transmits interface, and centralized monitor module transmits interface by higher level and is connected (be equipped with Ethernet, can adopt wireless-transmission network to carry out wireless telecommunications) with background monitoring system communication.
Finally should be noted that; above content is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; the simple modification that those of ordinary skill in the art carries out technical scheme of the present invention or be equal to replacement, does not all depart from essence and the scope of technical solution of the present invention.
Claims (7)
1. a modularization, centralized photovoltaic generation interface arrangement, it is characterized in that: it comprises photovoltaic control module, DC bus, inverter module, centralized monitor module, main distribution circuit breaker, load breaker and accumulator cell charging and discharging module, one end of described photovoltaic control module is connected with solar panel, the other end is connected on DC bus; One end of described inverter module is connected on DC bus, for direct current being changed into alternating current output, and the other end of inverter module is connected with main distribution circuit breaker, load breaker respectively; Described accumulator cell charging and discharging module is connected on DC bus; Described photovoltaic control module, accumulator cell charging and discharging module, inverter module, main distribution circuit breaker, load breaker are all connected with centralized monitor module communication by CAN bus or RS485 serial ports, and described centralized monitor module is provided with for the display screen interface with showing that touch-screen is connected.
2. modularization as claimed in claim 1, centralized photovoltaic generation interface arrangement, is characterized in that: described photovoltaic control module, inverter module and accumulator cell charging and discharging module all adopt modular insert structure.
3. modularization as claimed in claim 1, centralized photovoltaic generation interface arrangement, is characterized in that: the quantity of described photovoltaic control module, inverter module, accumulator cell charging and discharging module is selected according to demand.
4. modularization as claimed in claim 1, centralized photovoltaic generation interface arrangement, is characterized in that: described inverter module is provided with pure meritorious output inverter, reactive power compensation inverter, active filtering inverter by mode of operation difference.
5. modularization as claimed in claim 1, centralized photovoltaic generation interface arrangement, is characterized in that: described photovoltaic control module comprises that some the branch roads that conflux, cell panel temperature sensor, cell panel position transducer, sunlight position transducer, solar panel control motor, the first single-chip microcomputer and the first graphic alphanumeric display; Described each confluxes branch road for solar panel is connected to DC bus, described DC bus rear end is connected to DC load power supply through switch QS, on each branch road that confluxes, be equipped with lightning protection device, voltage sensor, current sensor, described voltage sensor, current sensor, cell panel temperature sensor are connected to the first single-chip microcomputer by variable connector and AD converter simultaneously; Described cell panel position transducer and sunlight position transducer are connected to the first single-chip microcomputer through photoisolator; Described solar panel is controlled motor and is connected to the first single-chip microcomputer by motor-drive circuit; Described the first single-chip microcomputer is connected with the first graphic alphanumeric display and centralized monitor module by communication interface.
6. modularization as claimed in claim 1, centralized photovoltaic generation interface arrangement, it is characterized in that: described accumulator cell charging and discharging module comprises storage battery, power tube, Battery temperature probe, power tube temperature sensor, second singlechip and second graph display, described storage battery is connected to DC bus through power tube, form charging and discharging circuit, in charging and discharging circuit, be equipped with voltage sensor, current sensor, described voltage sensor, current sensor, Battery temperature probe, power tube temperature sensor is connected to second singlechip by variable connector and AD converter, described second singlechip is connected with second graph display and centralized monitor module by communication interface.
7. modularization as claimed in claim 1, centralized photovoltaic generation interface arrangement, it is characterized in that: the higher level who is reserved with in described centralized monitor module for higher level's scheduling transmits interface, and centralized monitor module transmits interface by higher level and is connected with background monitoring system communication.
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| CN104485885A (en) * | 2014-12-19 | 2015-04-01 | 湖北追日电气股份有限公司 | Integrated control device applied to distributed photovoltaic power generation system |
| CN104701883A (en) * | 2015-03-25 | 2015-06-10 | 国家电网公司 | Concentrated monitoring type light-storing micro-grid solar photovoltaic generating system |
| CN104921278A (en) * | 2015-06-26 | 2015-09-23 | 周磊 | High-fat food material treating equipment |
| CN104938342A (en) * | 2015-06-26 | 2015-09-30 | 周国文 | Hard cheese food forming device |
| CN104980091A (en) * | 2015-06-23 | 2015-10-14 | 四川蜀旺科技有限公司 | Luminous energy storage inversion system |
| CN106253329A (en) * | 2016-08-05 | 2016-12-21 | 武汉索泰能源科技股份有限公司 | A kind of centralized control equipment based on small photovoltaic power generation system |
| CN107139769A (en) * | 2017-07-07 | 2017-09-08 | 杭州快电新能源科技有限公司 | It is a kind of based on solar powered intelligent charging stake |
| CN107943106A (en) * | 2017-11-17 | 2018-04-20 | 苏州聚晟太阳能科技股份有限公司 | Possess the MPPT header boxs of following function and its control method of use |
| CN110971189A (en) * | 2019-11-28 | 2020-04-07 | 戎得(上海)光伏科技有限公司 | Online monitoring system for electrical performance of multichannel photovoltaic module |
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| CN104485885A (en) * | 2014-12-19 | 2015-04-01 | 湖北追日电气股份有限公司 | Integrated control device applied to distributed photovoltaic power generation system |
| CN104701883A (en) * | 2015-03-25 | 2015-06-10 | 国家电网公司 | Concentrated monitoring type light-storing micro-grid solar photovoltaic generating system |
| CN104980091A (en) * | 2015-06-23 | 2015-10-14 | 四川蜀旺科技有限公司 | Luminous energy storage inversion system |
| CN104921278A (en) * | 2015-06-26 | 2015-09-23 | 周磊 | High-fat food material treating equipment |
| CN104938342A (en) * | 2015-06-26 | 2015-09-30 | 周国文 | Hard cheese food forming device |
| CN106253329A (en) * | 2016-08-05 | 2016-12-21 | 武汉索泰能源科技股份有限公司 | A kind of centralized control equipment based on small photovoltaic power generation system |
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| CN110971189A (en) * | 2019-11-28 | 2020-04-07 | 戎得(上海)光伏科技有限公司 | Online monitoring system for electrical performance of multichannel photovoltaic module |
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