CN112290880A - Distributed photovoltaic power generation monitoring device based on ARM - Google Patents

Distributed photovoltaic power generation monitoring device based on ARM Download PDF

Info

Publication number
CN112290880A
CN112290880A CN202011118702.1A CN202011118702A CN112290880A CN 112290880 A CN112290880 A CN 112290880A CN 202011118702 A CN202011118702 A CN 202011118702A CN 112290880 A CN112290880 A CN 112290880A
Authority
CN
China
Prior art keywords
storage battery
arm
discharge
power generation
electrically connected
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
Application number
CN202011118702.1A
Other languages
Chinese (zh)
Inventor
杨帅朋
罗中明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN202011118702.1A priority Critical patent/CN112290880A/en
Publication of CN112290880A publication Critical patent/CN112290880A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306—Overdischarge protection
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00308—Overvoltage protection
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Photovoltaic Devices (AREA)

Abstract

A distributed photovoltaic power generation monitoring device based on ARM. The distribution range of the grid-connected points is wide, and the existing dispatching automation system can not monitor the grid-connected points through low voltage. The invention comprises the following steps: the photovoltaic array (1), the DC/DC conversion circuit (2), the inverter (4), the inversion controller (6), the charge-discharge controller (8) and the ARM-based processor (10), wherein the photovoltaic array is electrically connected with the DC/DC conversion circuit, the output end of the DC/DC conversion circuit is electrically connected with the inverter and a plurality of groups of storage battery charge-discharge circuits, the inverter is electrically connected with the inversion controller, the plurality of groups of storage battery charge-discharge circuits are respectively electrically connected with the ARM-based processor, and the ARM-based processor is electrically connected with the DC/DC conversion circuit. The invention is used for photovoltaic power generation.

Description

Distributed photovoltaic power generation monitoring device based on ARM
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a distributed photovoltaic power generation monitoring device based on an ARM.
Background
In recent years, the national low-carbon energy policy has vigorously developed new energy industry, and the grid-connected points have the problem of difficult management because the distribution range is wide, the grid-connected points can not be connected by low voltage at all, and the existing dispatching automation system can not monitor the grid-connected points. The database not only needs to receive and record the data of the automatic scheduling, but also needs to receive and record the data of the electric energy and power utilization acquisition system, so that the corresponding data in the database can be called and processed by a configuration tool to develop a distributed photovoltaic power generation monitoring device, and the grid-connected electric quantity of each grid-connected point can be monitored.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a distributed photovoltaic power generation monitoring device based on an ARM (advanced RISC machine) machine, so as to overcome the defects in the prior art.
In order to achieve the above object, the present invention provides an ARM-based distributed photovoltaic power generation monitoring apparatus, which includes a photovoltaic array, a DC/DC conversion circuit, an inverter controller, a charge and discharge controller, and an ARM-based processor, wherein the photovoltaic array is electrically connected to the DC/DC conversion circuit, an output end of the DC/DC conversion circuit is electrically connected to the inverter and a plurality of sets of battery charge and discharge circuits, the inverter is electrically connected to the inverter controller, the plurality of sets of battery charge and discharge circuits are electrically connected to the ARM-based processor, and the ARM-based processor is electrically connected to the DC/DC conversion circuit;
the DC/DC conversion circuit adopts a Boost circuit;
the charging and discharging circuit of the storage battery comprises the storage battery and a charging and discharging controller, and the charging and discharging controller is used for carrying out electric quantity statistics, electric quantity excess prompting, electric quantity display, data comparison and data analysis on the storage battery;
the ARM-based processor is a CPU embedded with trace 32/16 in real time.
As a further description of the distributed photovoltaic power generation monitoring apparatus based on ARM of the present invention, preferably, the photovoltaic array utilizes a perturbation and observation method to realize maximum power point tracking control.
As a further description of the ARM-based distributed photovoltaic power generation monitoring apparatus of the present invention, preferably, the charge and discharge controller is further configured to control group discharge of the storage battery and control discharge voltage, and the group discharge control principle is as follows: when the charge state of each storage battery is less than 80%, balanced use is carried out, when more than or all more than 80% of groups exist, the group with the smaller charge state is selected to be put into operation until the charge state reaches 80%, and then the group with the smaller charge state is selected to be discharged.
As a further description of the ARM-based distributed photovoltaic power generation monitoring apparatus according to the present invention, preferably, the discharge voltage control principle: when the voltage of the storage battery is close to the over-discharge voltage of the storage battery pack, an alarm is given, when the voltage of the storage battery is lower than the over-discharge voltage of the storage battery pack, the storage battery stops discharging, and the storage battery is not allowed to be used again when the voltage of the storage battery pack is lower than the over-discharge voltage of 1.1 times.
As a further description of the ARM-based distributed photovoltaic power generation monitoring apparatus of the present invention, preferably, the ARM-based processor employs a 144-pin package, a plurality of 32-bit timers, 8-way 10-bit ADCs, a PMW output, and 9 external interrupt pins.
The invention has the beneficial effects that:
1. the monitoring device for the distributed photovoltaic power generation comprises a data input system, a grid-connected point and a grid-connected point, wherein the grid-connected point is connected with the grid-connected point through a network, and the grid-connected point is connected with the grid-connected point through a network.
2. The invention relates to an independent photovoltaic power generation energy management system which integrates array MPPT control, storage battery capacity prediction and a charge-discharge controller into a whole by taking an ARM-based processor as a core, and realizes array MPPT control, storage battery capacity prediction and charge-discharge control.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a circuit diagram of the DC/DC of the present invention;
FIG. 3 is a MPPT control flow diagram;
the reference numerals are explained below:
in the figure: 1. a photovoltaic array; 2. a DC/DC circuit; 3. a direct current bus; 4. an inverter; 6. an inverter controller; 7. an alternating current load; 8. a charge and discharge controller; 9. a storage battery; 10. a processor.
Detailed Description
To further understand the structure, characteristics and other objects of the present invention, the following detailed description is given with reference to the accompanying preferred embodiments, which are only used to illustrate the technical solutions of the present invention and are not to limit the present invention.
In a first specific embodiment, the ARM-based distributed photovoltaic power generation monitoring device in this embodiment includes a photovoltaic array 1, a DC/DC conversion circuit 2, an inverter 4, an inverter controller 6, a charge and discharge controller 8, and an ARM-based processor 10, where the photovoltaic array is electrically connected to the DC/DC conversion circuit, an output end of the DC/DC conversion circuit is electrically connected to the inverter and multiple sets of battery charge and discharge circuits, the inverter is electrically connected to the inverter controller, the multiple sets of battery charge and discharge circuits are respectively electrically connected to the ARM-based processor, and the ARM-based processor is electrically connected to the DC/DC conversion circuit;
the DC/DC conversion circuit adopts a Boost circuit;
the charging and discharging circuit of the storage battery comprises the storage battery and a charging and discharging controller, and the charging and discharging controller is used for carrying out electric quantity statistics, electric quantity excess prompting, electric quantity display, data comparison and data analysis on the storage battery;
the ARM-based processor is a CPU embedded with trace 32/16 in real time.
In a second specific embodiment, the present embodiment is a further description of the wood moisture content detection apparatus in the first specific embodiment, and the photovoltaic array utilizes a perturbation and observation method to realize maximum power point tracking control.
In a third specific embodiment, the present embodiment is a further description of the ARM-based distributed photovoltaic power generation monitoring apparatus in the first specific embodiment, where the charge and discharge controller is further configured to control group discharge and discharge voltage of the storage battery, and a group discharge control principle: when the charge state of each storage battery is less than 80%, balanced use is carried out, when more than or all more than 80% of groups exist, the group with the smaller charge state is selected to be put into operation until the charge state reaches 80%, and then the group with the smaller charge state is selected to be discharged.
In a fourth embodiment, the present embodiment is a further description of the ARM-based distributed photovoltaic power generation monitoring apparatus in the first embodiment, and the discharge voltage control principle is as follows: when the voltage of the storage battery is close to the over-discharge voltage of the storage battery pack, an alarm is given, when the voltage of the storage battery is lower than the over-discharge voltage of the storage battery pack, the storage battery stops discharging, and the storage battery is not allowed to be used again when the voltage of the storage battery pack is lower than the over-discharge voltage of 1.1 times.
Fifth, this embodiment is a further description of the ARM-based distributed photovoltaic power generation monitoring apparatus according to the first embodiment, where the ARM-based processor employs a 144-pin package, multiple 32-bit timers, 8-way 10-bit ADC, PMW output, and 9 external interrupt pins.
It should be noted that the above summary and the detailed description are intended to demonstrate the practical application of the technical solutions provided by the present invention, and should not be construed as limiting the scope of the present invention. Various modifications, equivalent substitutions, or improvements may be made by those skilled in the art within the spirit and principles of the invention. The scope of the invention is to be determined by the appended claims.

Claims (5)

1. An ARM-based distributed photovoltaic power generation monitoring device comprises a photovoltaic array, a DC/DC conversion circuit, an inverter controller, a charge-discharge controller and an ARM-based processor, and is characterized in that the photovoltaic array is electrically connected with the DC/DC conversion circuit, the output end of the DC/DC conversion circuit is electrically connected with the inverter and a plurality of groups of storage battery charge-discharge circuits, the inverter is electrically connected with the inverter controller, the plurality of groups of storage battery charge-discharge circuits are respectively electrically connected with the ARM-based processor, and the ARM-based processor is electrically connected with the DC/DC conversion circuit;
the DC/DC conversion circuit adopts a Boost circuit;
the charging and discharging circuit of the storage battery comprises the storage battery and a charging and discharging controller, and the charging and discharging controller is used for carrying out electric quantity statistics, electric quantity excess prompting, electric quantity display, data comparison and data analysis on the storage battery;
the ARM-based processor is a CPU embedded with trace 32/16 in real time.
2. The ARM-based distributed photovoltaic power generation monitoring device according to claim 1, wherein the photovoltaic array is controlled by maximum power point tracking through perturbation and observation.
3. The ARM-based distributed photovoltaic power generation monitoring device as claimed in claim 2, wherein the charge and discharge controller is further used for controlling group discharge and discharge voltage of the storage battery, and the group discharge control principle is as follows: when the charge state of each storage battery is less than 80%, balanced use is carried out, when more than or all more than 80% of groups exist, the group with the smaller charge state is selected to be put into operation until the charge state reaches 80%, and then the group with the smaller charge state is selected to be discharged.
4. The ARM-based distributed photovoltaic power generation monitoring device according to claim 3, wherein the discharge voltage control principle is as follows: when the voltage of the storage battery is close to the over-discharge voltage of the storage battery pack, an alarm is given, when the voltage of the storage battery is lower than the over-discharge voltage of the storage battery pack, the storage battery stops discharging, and the storage battery is not allowed to be used again when the voltage of the storage battery pack is lower than the over-discharge voltage of 1.1 times.
5. The ARM-based distributed photovoltaic power generation monitoring device of claim 4, wherein the ARM-based processor employs a 144-pin package, a plurality of 32-bit timers, 8-way 10-bit ADCs, PMW outputs, and 9 external interrupt pins.
CN202011118702.1A 2020-10-19 2020-10-19 Distributed photovoltaic power generation monitoring device based on ARM Pending CN112290880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011118702.1A CN112290880A (en) 2020-10-19 2020-10-19 Distributed photovoltaic power generation monitoring device based on ARM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011118702.1A CN112290880A (en) 2020-10-19 2020-10-19 Distributed photovoltaic power generation monitoring device based on ARM

Publications (1)

Publication Number Publication Date
CN112290880A true CN112290880A (en) 2021-01-29

Family

ID=74497478

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011118702.1A Pending CN112290880A (en) 2020-10-19 2020-10-19 Distributed photovoltaic power generation monitoring device based on ARM

Country Status (1)

Country Link
CN (1) CN112290880A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201789448U (en) * 2010-09-16 2011-04-06 扬州天华光电科技有限公司 Solar photovoltaic generation system capable of running off-grid
CN104682424A (en) * 2013-11-30 2015-06-03 陕西银河网电科技有限公司 Distributed type photovoltaic grid connected power generation system
CN205407664U (en) * 2016-02-29 2016-07-27 安徽理工大学 Novel photovoltaic power generation controller
CN108521140A (en) * 2018-04-03 2018-09-11 深圳电丰电子有限公司 A kind of distributed photovoltaic and from energy storage inversion system
JP2020010531A (en) * 2018-07-10 2020-01-16 住友電気工業株式会社 Power storage device, photovoltaic generation power storage system and storage battery charging method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201789448U (en) * 2010-09-16 2011-04-06 扬州天华光电科技有限公司 Solar photovoltaic generation system capable of running off-grid
CN104682424A (en) * 2013-11-30 2015-06-03 陕西银河网电科技有限公司 Distributed type photovoltaic grid connected power generation system
CN205407664U (en) * 2016-02-29 2016-07-27 安徽理工大学 Novel photovoltaic power generation controller
CN108521140A (en) * 2018-04-03 2018-09-11 深圳电丰电子有限公司 A kind of distributed photovoltaic and from energy storage inversion system
JP2020010531A (en) * 2018-07-10 2020-01-16 住友電気工業株式会社 Power storage device, photovoltaic generation power storage system and storage battery charging method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
岳艳伟: "基于ARM的光伏发电系统研究", 中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅱ辑, pages 042 - 101 *

Similar Documents

Publication Publication Date Title
US20230327178A1 (en) Systems and methods for series battery charging
CN212627257U (en) String type two-stage conversion battery energy storage system comprising pre-diagnosis module
WO2023029335A1 (en) Parameter configuration method and terminal for photovoltaic storage and charging system
WO2024041383A1 (en) Energy storage system and power supply control method for battery management system
CN104362693A (en) Method and device for implementing charging and discharging between battery packs
CN217642739U (en) Energy storage battery system and energy storage equipment
CN202651806U (en) Smooth wind-power photovoltaic power generation control system of battery energy storage station
CN104901326A (en) Control rod drive mechanism static power supply system and energy storage system and power supply method thereof
CN209709744U (en) A kind of communication base station power supply system that retired power battery echelon utilizes
CN111106643A (en) 48V communication power supply system and online discharge control method of storage battery thereof
CN206470376U (en) Batteries charge-discharge test instrument
CN210297268U (en) Hybrid energy storage system for thermal power combined AGC frequency modulation
CN215681813U (en) Parallel energy storage system
CN214124859U (en) Battery management system for lithium battery
CN112290880A (en) Distributed photovoltaic power generation monitoring device based on ARM
CN115549247A (en) Mixed power management method and system
CN104767248A (en) Intelligent energy source efficient management system
CN212162825U (en) Distributed energy storage system-based multi-parameter dynamic adjustment flexible charging and discharging control system
CN111009929A (en) Storage battery pack string direct current confluence and pack string balance control device of energy storage system
CN203606472U (en) Detection device of electric locomotive storage battery residual capacity
CN104734263A (en) Current sharing control system and method
CN114530884A (en) Light storage integrated micro-grid system with island capability
CN216751226U (en) Battery pack monitoring and balancing management system
CN104158246A (en) Wind power storage operation control method
CN111864895A (en) Intelligent alternating current-direct current integrated power supply system for transformer substation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination