CN105186585A - Energy coordination system for multisource intelligent microgrid under multi-modes - Google Patents
Energy coordination system for multisource intelligent microgrid under multi-modes Download PDFInfo
- Publication number
- CN105186585A CN105186585A CN201510758446.5A CN201510758446A CN105186585A CN 105186585 A CN105186585 A CN 105186585A CN 201510758446 A CN201510758446 A CN 201510758446A CN 105186585 A CN105186585 A CN 105186585A
- Authority
- CN
- China
- Prior art keywords
- energy
- bus
- energy storage
- module
- power
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/14—District level solutions, i.e. local energy networks
Landscapes
- Inverter Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to an energy coordination system for a multisource intelligent microgrid under multi-modes, and in particular relates to an energy coordination system for multisource intelligent microgrid comprising wind power generation, photovoltaic power generation and energy storage systems under multi-modes, and related devices. According to the system, supplementary effects of the wind power generation, photovoltaic power generation and energy storage systems are fully played, so that coordinate and energy scheduling problems between each power generation system and a user load and between the energy storage system and the user load can be solved; wireless communication control between a distributed power supply and the load and between the energy storage system and the load can be achieved by a STM32 series microprocessor and a PWM driving chip and delivering of a Zigbee wireless module for achieving real-time coordination and energy management, so that stable, reliable and high-quality electrical energy can be provided for a user.
Description
Technical field
The present invention relates to a kind of multi-source intelligent micro-grid energy compatibility system in multiple modes, be specifically related to a kind of intelligent micro-grid containing wind power generation, photovoltaic generation and energy-storage system energy compatibility system in multiple modes and relevant apparatus.
Background technology
Intelligent micro-grid refer to collected by distributed power source, energy storage device, energy conversion device, associated loadings and monitoring, protective device be small-sizedly transported to electric system; be one can teaching display stand control, the autonomous system of protect and manage; both can be incorporated into the power networks with external electrical network, also can isolated operation.From microcosmic, microgrid can regard small-sized electric power system as, it has complete sends out power transmission and distribution function, and can realize the power-balance of local and energy-optimised, it is to have grid-connected and stand-alone capability with the essential distinction with the distributed generation system of load simultaneously.From macroscopic view, microgrid can think again power supply and the load of one " virtual " in power distribution network.
Based on the intelligent micro-grid of photovoltaic, wind energy and energy storage device, the power output of its photovoltaic generation and wind power generation unit has feature that is intermittent and randomness, and the change of load also has randomness, causes negative effect to the stable operation of intelligent micro-grid.Simultaneously, the especially jumbo power energy storing device of energy storage device often needs absorb frequently and discharge relatively high power, the storage battery as conventional energy storage device raises as there will be temperature in high-power discharge and recharge frequently and deep discharge process, the phenomenons such as the active material on positive/negative plate comes off, cause the loss of battery capacity accumulation property, and decline fast at short notice, have a strong impact on the useful life of storage battery, and the operation of intelligent micro-grid normal table.Therefore, to propose in intelligent micro-grid a kind of distributed power source, energy storage device and load can be carried out energy compatibility management strategy and device just seem particularly important.
Summary of the invention
Goal of the invention: for Problems existing in above-mentioned background technology, the object of the present invention is to provide and a kind ofly can coordinate and manage distributed power source, the strategy of energy and relevant apparatus between energy storage device and load.
Technical scheme:
The present invention is achieved by the following technical solutions:
A multi-source intelligent micro-grid energy compatibility system in multiple modes, is characterized in that: comprise wind energy AC/DC rectification module, wind power source, energy storage DC/DC modular converter, energy storage device, photovoltaic DC/DC modular converter, photo-voltaic power supply, power coordination device; Described wind-force power supply is connected with wind energy AC/DC rectification module, DC bus successively by cable; Described photo-voltaic power supply is connected with photovoltaic DC/DC modular converter, DC bus successively by cable; Described energy storage device is connected with energy storage DC/DC modular converter, DC bus successively by cable; DC bus connects power coordination device, and power coordination device connects ac bus, and ac bus is incorporated to bulk power grid.Described power coordination device comprises three-phase inverter, one-level supplementary module.
Described one-level supplementary module comprises input voltage feedback circuit, STM32 processor, PWM driving chip, level shifting circuit, output voltage feedback circuit, Zigbee wireless module; The AC voltage that three-phase inverter circuitry exports, current feedback and DC voltage feedback enters STM32 series microprocessor and processes, then produce pwm signal by PWM driving chip and enter level shifting circuit, the signal entering STM32 series microprocessor is delivered in single-chip microcomputer by Zigbee wireless module.
Described a kind of multi-source intelligent micro-grid energy compatibility system in multiple modes, is characterized in that: on described wind energy AC/DC rectification module, energy storage DC/DC modular converter, photovoltaic DC/DC modular converter, be connected to secondary supplementary module.
Described a kind of multi-source intelligent micro-grid energy compatibility system in multiple modes, is characterized in that: described secondary supplementary module comprises output voltage current feedback circuit, STM32 processor, PWM driving chip, level shifting circuit, input voltage feedback circuit, Zigbee wireless module; The AC voltage that circuit exports, current feedback and DC voltage feedback enters STM32 series microprocessor and processes, then produce pwm signal by PWM driving chip and enter level shifting circuit, the signal entering STM32 series microprocessor is delivered in single-chip microcomputer by Zigbee wireless module.
Advantage and effect: the invention provides and a kind ofly coordinate and manage distributed power source, the strategy of energy and relevant apparatus between energy storage device and load, its objective is the complementation giving full play to wind power generation, photovoltaic generation and energy-storage system, solve each electricity generation system, coordination between energy-storage system and user load and energy scheduling problem.
The present invention passes through distributed power source, carries out real time coordination between energy storage device and load, and carries out energy management, for user provides the reliable and stable high quality power energy.
accompanying drawing illustrates:
Fig. 1 is native system structural representation;
Fig. 2 is one-level supplementary module schematic diagram in native system;
Fig. 3 is secondary supplementary module schematic diagram in native system;
Mark in figure: 101 wind energy AC/DC rectification modules, 102 wind power source, 103 energy storage DC/DC modular converters, 104 energy storage devices, 105 photovoltaic DC/DC modular converters, 106 photo-voltaic power supplies, 107 power coordination devices, 201 three-dimensional inverters, 202PWM driving chip, 203STM32 processor, 204 one-level supplementary modules.
embodiment:
For feature of the present invention, technological means and the specific purposes reached, function can be understood further, below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
The invention provides a kind of the multi-mode energy compatibility strategy and the device thereof that comprise the intelligent micro-grid of wind-light storage.The power output of photo-voltaic power supply and wind-force power supply has feature that is intermittent and randomness, and thus the change of load also has randomness, causes negative effect to the stable operation of intelligent micro-grid.
As shown in Figure 1: 101, wind energy secondary supplementary module and AC/DC device 102, wind power source 103, energy storage secondary supplementary module and DC/DC device 104, energy storage device 105, photovoltaic secondary supplementary module and DC/DC device 106, photo-voltaic power supply 107, power coordination device.
The alternating current that described wind power source produces is through L filter, and enter AC/DC wind energy rectifying device module, the direct current of output is incorporated to DC bus; The direct current that described energy storage device exports is through EMI DC filter, and enter DC/DC apparatus module, the direct current of output is incorporated to DC bus; The direct current that described photo-voltaic power supply produces is through EMI DC filter, and enter DC/DC apparatus module, the direct current of output is incorporated to DC bus.
Described DC bus and telegon are connected to each other, and the direct current being incorporated to DC bus enters telegon, the inverter in telegon, and the alternating current of stable output is incorporated to ac bus.
The alternating current of input can be directly incorporated into the ac bus of bulk power grid by described ac bus, also directly can access microgrid load through process.
Intelligent micro-grid structure of the present invention is divided into three parts, and Part I comprises distributed power source and filter rectification device and DC bus, and Part II is energy dynamics telegon, and Part III is ac bus and microgrid load.
Described Part I wind-force power supply and photo-voltaic power supply are unilaterally connecteds with DC bus, can only be that the electricity sent from power supply is incorporated to DC bus with rectifying device process after filtering, and can not reverse flow.Energy storage device and DC bus are diconnecteds, and by the process of DC/DC device, DC bus and energy storage device can realize energy and mutually transmit, and ensure homeostasis energy with this.
Described Part II is energy dynamics telegon.Telegon and DC bus and ac bus diconnected, DC bus and ac bus is connected by telegon inverter, DC bus and ac bus can to telegon input dc power and alternating currents, telegon can to DC bus input direct-current active power, to ac bus input AC active power and reactive power, realize energy mutually to transmit, ensure microgrid energy Real-Time Scheduling.
Described Part III is ac bus and microgrid load.Described ac bus and telegon diconnected, the direct current that DC bus exports is incorporated to ac bus by telegon inverter, and ac bus is incorporated to bulk power grid bus again or receives each load of microgrid.
The circuit diagram of telegon and controlling functions module in the embodiment of the present invention as shown in Figure 2.
Wherein, 201, three-phase inverter circuitry Figure 20 2, PWM driving chip 203, STM32 series microprocessor 204, inverter controller 205, telegon previous module structure chart.
The power transfer of telegon is made up of two-way three-phase voltage source transducer, and telegon is in order to determine the suitable poower flow of DC bus and AC circuit, and monitor the ruuning situation of DC bus and AC circuit, then power adjustment scheme regulates in proportion.
Described telegon main working process is, export AC voltage, current feedback and DC voltage by three-phase inverter circuitry to feed back, enter STM32 series microprocessor to process, then by PWM driving chip, pwm signal is through level shifting circuit, the signal entering STM32 series microprocessor can be delivered in next single-chip microcomputer by Zigbee wireless module, realizes radio communication control with this.
The present invention includes supplementary module, it is made up of STM32 series microprocessor and Zigbee module, for radio communication, decision-making and execution instruction.This module adopts the pattern of one master and multiple slaves.One-level supplementary module is used for aided coordination device, and secondary supplementary module is used for auxiliary photovoltaic DC/DC, wind-powered electricity generation AC/DC and savings battery three parts.
Supplementary module as above is with STM32 series microprocessor for core, and its wireless module adopts Zigbee module, can be divided into an one-level supplementary module and multiple secondary supplementary module.
One-level supplementary module described above, be for secondary supplementary module by the status information feedback such as voltage, electric current, phase place that monitors to after one-level supplementary module, analysis and decision (i.e. decision making algorithm) is carried out to whole system, then to sending desired instruction to secondary supplementary module.In addition, one-level supplementary module is also for controlling telegon.
Secondary supplementary module described above is for monitoring photovoltaic DC/DC module, wind-powered electricity generation AC/DC module and savings battery three part, then feeding back to one-level supplementary module, in addition, also for performing the instruction that one-level supplementary module sends.Described execution instruction refers to and controls photovoltaic DC/DC module, wind-powered electricity generation AC/DC module and savings battery three parts.
As mentioned above, the STM32 microprocessor 203 of one-level supplementary module 201 controls PWM chip 202, and PWM chip 202 controls the voltage, phase place etc. of three-phase electricity by controlling telegon 107.
The present invention includes photovoltaic DC/DC module, it is made up of STM32 microprocessor, feedback circuit, PWM chip, Buck circuit and Boost circuit inverse parallel.Because the output characteristic of photovoltaic cell changes, the wherein output voltage of ambient temperature major effect photovoltaic cell, the output current of radiation intensity major effect photovoltaic cell with the change of the factors such as ambient temperature, radiation intensity and load.Because photovoltaic cell has the features such as randomness, unsteadiness and intermittence are large, photovoltaic cell needs to use photovoltaic DC/DC to make voltage stabilization.
STM32 microprocessor described above is for controlling PWM chip, and the pulse-width signal PWM of then PWM chip generation, after level shifting circuit, acts on PWM1000 and PWM2000 place.Wherein STM32 microprocessor adopts outer voltage according to feedback current, feedback voltage and output voltage, the double-loop control strategy of current inner loop, all adopt increment type PI controlled adjuster to produce control command, make system dynamic response and reach desirable stable state.
Claims (5)
1. a multi-source intelligent micro-grid energy compatibility system in multiple modes, is characterized in that: comprise wind energy AC/DC rectification module (101), wind power source (102), energy storage DC/DC modular converter (103), energy storage device (104), photovoltaic DC/DC modular converter (105), photo-voltaic power supply (106), power coordination device (107); Described wind-force power supply (102) is connected with wind energy AC/DC rectification module (101), DC bus successively by cable; Described photo-voltaic power supply (106) is connected with photovoltaic DC/DC modular converter (105), DC bus successively by cable; Described energy storage device (104) is connected with energy storage DC/DC modular converter (103), DC bus successively by cable; DC bus connects power coordination device (107); Power coordination device (107) connects ac bus, and ac bus is incorporated to bulk power grid.
2. multi-source intelligent micro-grid according to claim 1 energy compatibility system in multiple modes, is characterized in that: described power coordination device (107) comprises three-phase inverter (201), one-level supplementary module (204).
3. multi-source intelligent micro-grid according to claim 2 energy compatibility system in multiple modes, is characterized in that: described one-level supplementary module (204) comprises input voltage feedback circuit, STM32 processor (203), PWM driving chip (202), level shifting circuit, output voltage feedback circuit, Zigbee wireless module; The AC voltage that three-phase inverter (201) circuit exports, current feedback and DC voltage feedback enters STM32 series microprocessor and processes, then produce pwm signal by PWM driving chip and enter level shifting circuit, the signal entering STM32 series microprocessor is delivered in single-chip microcomputer by Zigbee wireless module.
4. multi-source intelligent micro-grid according to claim 3 energy compatibility system in multiple modes, is characterized in that: on described wind energy AC/DC rectification module (101), energy storage DC/DC modular converter (103), photovoltaic DC/DC modular converter (105), be connected to secondary supplementary module.
5. multi-source intelligent micro-grid according to claim 4 energy compatibility system in multiple modes, is characterized in that: described secondary supplementary module comprises output voltage current feedback circuit, STM32 processor, PWM driving chip, level shifting circuit, input voltage feedback circuit, Zigbee wireless module; The AC voltage that circuit exports, current feedback and DC voltage feedback enters STM32 series microprocessor and processes, then produce pwm signal by PWM driving chip and enter level shifting circuit, the signal entering STM32 series microprocessor is delivered in single-chip microcomputer by Zigbee wireless module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510758446.5A CN105186585A (en) | 2015-11-10 | 2015-11-10 | Energy coordination system for multisource intelligent microgrid under multi-modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510758446.5A CN105186585A (en) | 2015-11-10 | 2015-11-10 | Energy coordination system for multisource intelligent microgrid under multi-modes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105186585A true CN105186585A (en) | 2015-12-23 |
Family
ID=54908507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510758446.5A Pending CN105186585A (en) | 2015-11-10 | 2015-11-10 | Energy coordination system for multisource intelligent microgrid under multi-modes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105186585A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597848A (en) * | 2016-12-08 | 2017-04-26 | 国网青海省电力公司 | Method for predicting identification error fluctuation coefficient of potential parameters of photovoltaic inverter |
| CN107919809A (en) * | 2017-11-24 | 2018-04-17 | 南京南瑞继保电气有限公司 | A kind of energy accumulation current converter system and its control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087069A (en) * | 2002-05-22 | 2007-12-12 | 迈为电子技术（上海）有限公司 | An intelligent distributed power supply system with plural distributed power unit |
| WO2011114422A1 (en) * | 2010-03-15 | 2011-09-22 | 株式会社正興電機製作所 | Power supply system, power supply method, program, recording medium, and power supply controller |
| CN102205920A (en) * | 2011-03-28 | 2011-10-05 | 江苏通用电梯有限公司 | Energy management system based on wireless sensor network for elevator direct-current microgrid |
| CN102916481A (en) * | 2012-08-16 | 2013-02-06 | 深圳微网能源管理系统实验室有限公司 | Direct-current microgrid system and energy management method thereof |
| CN103236712A (en) * | 2013-04-08 | 2013-08-07 | 嘉兴清源电气科技有限公司 | Direct-current micro-grid system and control method thereof |
| CN103543721A (en) * | 2013-10-18 | 2014-01-29 | 国家电网公司 | Microgrid hierarchical control system modeling method meeting IEC61850 standard |
| CN204376420U (en) * | 2014-12-09 | 2015-06-03 | 三峡大学 | A kind of microgrid energy management control system |
-
2015
- 2015-11-10 CN CN201510758446.5A patent/CN105186585A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087069A (en) * | 2002-05-22 | 2007-12-12 | 迈为电子技术（上海）有限公司 | An intelligent distributed power supply system with plural distributed power unit |
| WO2011114422A1 (en) * | 2010-03-15 | 2011-09-22 | 株式会社正興電機製作所 | Power supply system, power supply method, program, recording medium, and power supply controller |
| CN102205920A (en) * | 2011-03-28 | 2011-10-05 | 江苏通用电梯有限公司 | Energy management system based on wireless sensor network for elevator direct-current microgrid |
| CN102916481A (en) * | 2012-08-16 | 2013-02-06 | 深圳微网能源管理系统实验室有限公司 | Direct-current microgrid system and energy management method thereof |
| CN103236712A (en) * | 2013-04-08 | 2013-08-07 | 嘉兴清源电气科技有限公司 | Direct-current micro-grid system and control method thereof |
| CN103543721A (en) * | 2013-10-18 | 2014-01-29 | 国家电网公司 | Microgrid hierarchical control system modeling method meeting IEC61850 standard |
| CN204376420U (en) * | 2014-12-09 | 2015-06-03 | 三峡大学 | A kind of microgrid energy management control system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597848A (en) * | 2016-12-08 | 2017-04-26 | 国网青海省电力公司 | Method for predicting identification error fluctuation coefficient of potential parameters of photovoltaic inverter |
| CN107919809A (en) * | 2017-11-24 | 2018-04-17 | 南京南瑞继保电气有限公司 | A kind of energy accumulation current converter system and its control method |
| CN107919809B (en) * | 2017-11-24 | 2020-01-10 | 南京南瑞继保电气有限公司 | Energy storage converter system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103427430B (en) | A kind of energy management method of mixed energy storage system in microgrid | |
| CN102005817B (en) | Uninterruptible power supply device based on microgrid and dispatching control method thereof | |
| CN102931653B (en) | Comprehensive coordination control method of wind-solar direct current micro-grid | |
| CN110601248B (en) | Multi-mode coordination control method of annular alternating current-direct current hybrid micro-grid system | |
| CN204230948U (en) | A kind of new forms of energy feed-type charge-discharge machine | |
| CN105743127A (en) | Household new energy power generation intelligent control system and control method | |
| CN106026168B (en) | The energy management strategies of honourable energy storage wisdom energy tower | |
| WO2014059949A1 (en) | Distributed electrical-energy storage device and control system for same | |
| CN103545907B (en) | Office photovoltaic DC power-supply system and control method | |
| CN209805420U (en) | high-compatibility building direct-current power distribution system | |
| CN105811458A (en) | Microgrid energy storage system and energy management method thereof | |
| CN104333036B (en) | Multi-source coordination control system | |
| CN104467509B (en) | A kind of bidirectional energy-storage current transformer | |
| CN111600389A (en) | Energy storage monitoring system | |
| CN205212524U (en) | Mixed microgrid system of alternating current -direct current | |
| CN204205617U (en) | A kind of power conversion is generated electricity by way of merging two or more grid systems electric power system | |
| CN116819355B (en) | Energy-saving test system for direct-current bus of micro-grid at rear section of battery cell | |
| CN105186585A (en) | Energy coordination system for multisource intelligent microgrid under multi-modes | |
| CN202134923U (en) | Deep charging and discharging type battery energy storage paralleling device | |
| CN210123895U (en) | New energy elevator power supply system with energy feedback function and new energy elevator | |
| CN104600811A (en) | Intelligent photovoltaic charging system | |
| Xu et al. | Energy management and control strategy for DC micro-grid in data center | |
| CN103427443A (en) | New energy power generation and supply system based on multi-power intelligent tuner and structure | |
| CN116048181A (en) | Photovoltaic device and method for improving photovoltaic utilization rate of photovoltaic device | |
| CN105449821A (en) | AC-DC hybrid microgrid system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |