CN218386826U - Remote distributed energy storage control device - Google Patents
Remote distributed energy storage control device Download PDFInfo
- Publication number
- CN218386826U CN218386826U CN202222650674.9U CN202222650674U CN218386826U CN 218386826 U CN218386826 U CN 218386826U CN 202222650674 U CN202222650674 U CN 202222650674U CN 218386826 U CN218386826 U CN 218386826U
- Authority
- CN
- China
- Prior art keywords
- energy storage
- converter
- controller
- distributed energy
- storage battery
- 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.)
- Expired - Fee Related
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 83
- 238000004891 communication Methods 0.000 claims abstract description 43
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 14
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a long-range distributed energy storage control device, including energy storage system, a controller, communication system and monitoring system, energy storage system and monitoring system link to each other with the controller through communication system respectively, collect the power signal in each charging and discharging equipment work in real time through a plurality of acquisition units in the monitoring system, respectively feed back each equipment power signal in each energy storage unit to the controller through communication system, the controller synthesizes real-time signal data and sends the processing decision to the converter in first DC/DC converter and the energy storage unit after setting for the standard again, accomplish the whole collection, transmission, processing, feedback, the action process that each energy storage unit that distributes and sets up lasts the regulation and control, carry out accurate regulation and control to distributed energy storage control device, promote regulation and control efficiency, avoid the energy storage wasting of resources; the charge state of the storage battery in the energy storage unit is accurately controlled through the electric quantity detector, the situation of over-charging or over-discharging in the charging and discharging process of the storage battery is avoided, and the service life of the energy storage unit is prolonged.
Description
Technical Field
The utility model relates to an energy storage control technical field especially relates to a long-range distributed energy storage control device.
Background
The energy storage system mainly comprises a centralized type and a distributed type, wherein the energy storage system applied in the centralized type is generally accessed in the same grid-connected point in a centralized manner, is mainly adopted in the aspects of large-scale renewable energy power generation grid connection, power grid auxiliary service and the like, and has the characteristics of high power, long continuous discharge time and the like; the distributed energy storage system is flexible in access position and is mainly applied to medium and low voltage power distribution networks, distributed power generation and micro-grids and user sides at present.
The scale of the power and capacity of the distributed energy storage is relatively small, the distributed energy storage is distributed and has poor controllability, and the lack of an effective scheduling regulation and control means in a power grid scheduling system can cause great waste of energy storage resources.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a long-range distributed energy storage control device to the defect that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a remote distributed energy storage control device comprises an energy storage system, a controller, a communication system and a monitoring system, wherein the energy storage system and the monitoring system are respectively connected with the controller through the communication system;
the energy storage system comprises a plurality of energy storage units which are independently arranged, the monitoring system comprises a plurality of acquisition units which are arranged corresponding to the energy storage units, and the communication system comprises a CAN bus, an RS-485 communication line and a communication machine;
the energy storage unit is connected with a direct current bus through a first DC/DC converter, the direct current bus is connected with a load, the first DC/DC converter and the energy storage unit are connected with the communication machine through the CAN bus, the acquisition unit is connected with the communication machine through an RS-485 communication line, and the communication machine is connected with the controller.
Further, the energy storage unit comprises a photovoltaic array, a storage battery, a second DC/DC converter and a third DC/DC converter, and the photovoltaic array and the storage battery are respectively connected to the first DC/DC converter in parallel through the second DC/DC converter and the third DC/DC converter.
Further, the first DC/DC converter and the third DC/DC converter each use a bidirectional DC/DC converter for voltage conversion.
Further, the second DC/DC converter and the third DC/DC converter are connected to the communication machine through a CAN bus.
Furthermore, the collection unit is respectively connected with the photovoltaic array, the storage battery and the direct current bus.
Further, the acquisition unit comprises an electric quantity detector, a current sensor and a voltage sensor;
the electric quantity detector is connected with the storage battery, and the current sensor and the voltage sensor are respectively provided with a plurality of groups corresponding to the second DC/DC converter, the third DC/DC converter and the direct current bus.
Further, the electric quantity detector transmits the state of charge of the storage battery to the controller, and the voltage sensor and the current sensor are matched with the controller to monitor the output power of the photovoltaic array, the consumed power of the direct current bus and the charging and discharging power of the storage battery.
Further, the charge detector comprises a coulometer chip and a coulometer sampler, wherein the coulometer sampler is connected with the storage battery and is connected with the controller through the coulometer chip.
The controller detects the temperature of the storage battery and the critical charge state of the storage battery in the charging and discharging process through the early warning unit.
Further, the device also comprises a display unit, and the display unit is connected with the controller.
The utility model has the advantages that:
in the application, in the regulation and control process of a plurality of remote distributed energy storage units, a plurality of acquisition units in a monitoring system are used for collecting power signals in the work of each charging and discharging device in real time, the power signals of each device in each energy storage unit are fed back to a controller through a communication system, the controller synthesizes real-time signal data and a set standard and then sends a processing decision to a first DC/DC converter and a converter in the energy storage unit, the whole collection, transmission, processing, feedback and action processes of continuous regulation and control of each energy storage unit which is distributed and arranged are completed, the distributed energy storage control device is accurately regulated and controlled, the regulation and control efficiency is improved, and energy storage resource waste is avoided;
the charge state of the storage battery in the energy storage unit is accurately controlled through the electric quantity detector, the situation of over-charging or over-discharging in the charging and discharging process of the storage battery is avoided, and the service life of the energy storage unit is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a frame structure of a distributed energy storage control apparatus of the present invention;
fig. 2 is a schematic diagram of a framework of the communication system of the present invention;
fig. 3 is a schematic diagram of a frame of the energy storage system of the present invention;
fig. 4 is the state of charge detection schematic diagram of the storage battery of the present invention.
Reference numerals: 1. an energy storage system; 11. an energy storage unit; 111. a photovoltaic array; 112. a storage battery; 113. a second DC/DC converter; 114. a third DC/DC converter; 12. a first DC/DC converter; 13. a direct current bus; 14. an early warning unit; 2. a controller; 3. a communication system; 31. a CAN bus; 32. an RS-485 communication line; 33. a communication machine; 4. a monitoring system; 41. a collection unit; 42. an electric quantity detector; 421. a coulometer chip; 422. a coulometer sampler; 5. a display unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, the remote distributed energy storage control device includes an energy storage system 1, a controller 2, a communication system 3 and a monitoring system 4, where the energy storage system 1 and the monitoring system 4 are respectively connected to the controller 2 through the communication system 3; the energy storage system 1 comprises a plurality of energy storage units 11 which are independently arranged, the monitoring system 4 comprises a plurality of acquisition units 41 which are arranged corresponding to the energy storage units 11, and the communication system 3 comprises a CAN bus 31, an RS-485 communication line 32 and a communication machine 33; the energy storage unit 11 is connected with the direct current bus 13 through the first DC/DC converter 12, the direct current bus 13 is connected with a load, the first DC/DC converter 12 and the energy storage unit 11 are connected with the communication machine 33 through the CAN bus 31, the acquisition unit 41 is connected with the communication machine 33 through the RS-485 communication line 32, and the communication machine 33 is connected with the controller 2.
Further, a display unit 5 is included, and the display unit 5 is connected with the controller 2. In the application, in the regulation and control process of the remote distributed energy storage units 11, power signals in the work of each charging and discharging device are collected in real time through the acquisition units 41 in the monitoring system 4, the power signals of each device in each energy storage unit 11 are fed back to the controller 2 through the communication system 3, the controller 2 synthesizes real-time signal data and set standards and then sends processing decisions to the first DC/DC converter 12 and the converters in the energy storage units 11, the whole collection, transmission, processing, feedback and action processes of continuous regulation and control of each energy storage unit 11 in distributed arrangement are completed, the distributed energy storage control device is accurately regulated and controlled, the regulation and control efficiency is improved, and energy storage resource waste is avoided.
The monitoring system 4 mainly comprises a plurality of sensors, can acquire useful electric signals in the field charging and discharging process in real time, and is more favorable for transmission by matching with the RS-485 communication line 32. The load comprises a direct current load and an alternating current load, the energy storage unit 11 serves as an energy supply basic module, the output direct current can be directly supplied to the direct current load for use, or can be used for charging internal electricity storage equipment, and the direct current can be converted into alternating current for use by the alternating current load through the arrangement of the inverter.
As a preferred embodiment of the present application, the energy storage unit 11 includes a photovoltaic array 111, a storage battery 112, a second DC/DC converter 113 and a third DC/DC converter 114, and the photovoltaic array 111 and the storage battery 112 are respectively connected in parallel to the first DC/DC converter 12 through the second DC/DC converter 113 and the third DC/DC converter 114. The second DC/DC converter 113 and the third DC/DC converter 114 are connected to the communicator 33 through the CAN bus 31. The first DC/DC converter 12 and the third DC/DC converter 114 each use a bidirectional DC/DC converter for voltage conversion.
Specifically, in the regulation and control process of any energy storage unit 11, the photovoltaic array 111 serves as basic equipment to convert light energy into electric energy, the controller 2 judges the power supply power of the photovoltaic array 111 and the power consumption power of the direct current bus 13, and sends an adjustment decision command to the first DC/DC converter 12, the second DC/DC converter 113 and the third DC/DC converter 114 to change the charging and discharging states of the storage battery 112.
In the present embodiment, information interaction between the controller 2 and the first DC/DC converter 12, the second DC/DC converter 113, and the third DC/DC converter 114 is realized through the CAN bus 31; any connection point on the CAN bus 31 CAN send information to the controller 2 at any time and without primary and secondary, and the plurality of energy storage units 11 in the energy storage system 1 CAN transmit status signals at the same time without mutual influence. The data communication among the nodes of the network formed by the CAN bus 31 has strong real-time performance, and a redundant structure is easy to form, thereby improving the reliability and the flexibility of the control device.
The communication machine 33 completes communication bus management of the control device, data is transmitted in two directions, when the running state of the energy storage equipment is fed back to the upper controller 2, processing decisions are generated by the controller 2 and sent to the communication machine 33, the processing decisions are transmitted to the distributed energy storage units 11 by the communication machine 33, and device regulation and control are performed while data exchange is completed.
As a preferred embodiment of the present embodiment, the collecting unit 41 is respectively connected to the photovoltaic array 111, the storage battery 112 and the dc bus 13, and the collecting unit 41 includes an electric quantity detector 42, a current sensor and a voltage sensor; the electric quantity detector 42 is connected to the battery 112, and a plurality of sets of current sensors and voltage sensors are provided corresponding to the second DC/DC converter 113, the third DC/DC converter 114, and the DC bus 13, respectively. The charge detector 42 transmits the state of charge of the storage battery 112 to the controller 2, and the voltage sensor and the current sensor cooperate with the controller 2 to monitor the output power of the photovoltaic array 111, the consumed power of the direct current bus 13, and the charging and discharging power of the storage battery 112.
In a specific implementation process, in any energy storage unit 11, when the consumed power of the direct current bus 13 is greater than the power provided by the photovoltaic array 111, the first DC/DC converter 12 is controlled to enable the photovoltaic array 111 to supply power to the direct current bus 13, and the second DC/DC converter 113 and the third DC/DC converter 114 are controlled to operate to enable the storage battery 112 to discharge; when the output power of the photovoltaic array 111 is larger than the power consumed by the direct current bus 13, the first DC/DC converter 12 is controlled to charge the storage battery 112 with the photovoltaic array 111, and the second DC/DC converter 113 and the third DC/DC converter 114 are controlled.
Further, the system also comprises an early warning unit 14 and a temperature sensor, wherein the temperature sensor is connected with the storage battery 112, and the controller 2 detects the temperature of the storage battery 112 and the critical charge state of the storage battery in the charging and discharging process through the early warning unit 14. When the temperature of the storage battery 112 is too high or the state of charge of the storage battery 112 reaches a charge-discharge critical value, the early warning unit 14 is triggered and fed back to the controller 2 for regulation and control.
The state of charge of the storage battery 112 is specifically monitored by the charge detector 42, the charge detector 42 includes a coulomb counter chip 421 and a coulomb counter sampler 422, and the coulomb counter sampler 422 is connected to the storage battery 112 and to the controller 2 through the coulomb counter chip 421. The coulometer sampler 422 is used for collecting current information and voltage information flowing through the storage battery 112, and the coulometer chip 421 is used for measuring and calculating the electric quantity of the storage battery 112 according to the current information and the voltage information and sending the electric quantity to the controller 2, so that the accurate control of the charge state of the storage battery 112 is realized, the situation of overcharge or overdischarge in the charge and discharge processes of the storage battery 112 is avoided, and the service life of the energy storage unit 11 is prolonged.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A remote distributed energy storage control apparatus, comprising: the energy storage system (1), the controller (2), the communication system (3) and the monitoring system (4), wherein the energy storage system (1) and the monitoring system (4) are respectively connected with the controller (2) through the communication system (3);
the energy storage system (1) comprises a plurality of energy storage units (11) which are independently arranged, the monitoring system (4) comprises a plurality of acquisition units (41) which are arranged corresponding to the energy storage units (11), and the communication system (3) comprises a CAN bus (31), an RS-485 communication line (32) and a communication machine (33);
the energy storage unit (11) is connected with a direct current bus (13) through a first DC/DC converter (12), the direct current bus (13) is connected with a load, the first DC/DC converter (12) and the energy storage unit (11) are connected with the communication machine (33) through the CAN bus (31), the acquisition unit (41) is connected with the communication machine (33) through an RS-485 communication line (32), and the communication machine (33) is connected with the controller (2).
2. The remote distributed energy storage control apparatus according to claim 1, wherein the energy storage unit (11) includes a photovoltaic array (111), a storage battery (112), a second DC/DC converter (113) and a third DC/DC converter (114), and the photovoltaic array (111) and the storage battery (112) are connected in parallel to the first DC/DC converter (12) through the second DC/DC converter (113) and the third DC/DC converter (114), respectively.
3. The remote distributed energy storage control apparatus of claim 2, wherein the first DC/DC converter (12) and the third DC/DC converter (114) each employ a bidirectional DC/DC converter for voltage conversion.
4. The remote distributed energy storage control apparatus according to any one of claims 2 or 3, wherein the second DC/DC converter (113) and the third DC/DC converter (114) are connected to the communicator (33) through a CAN bus (31).
5. The remote distributed energy storage control device according to claim 2, wherein the collecting unit (41) is connected to the photovoltaic array (111), the storage battery (112) and the direct current bus (13), respectively.
6. The remote distributed energy storage control apparatus according to claim 5, wherein the acquisition unit (41) includes a charge detector (42), a current sensor, and a voltage sensor;
the electric quantity detector (42) is connected with the storage battery (112), and the current sensor and the voltage sensor are respectively provided with a plurality of groups corresponding to the second DC/DC converter (113), the third DC/DC converter (114) and the direct current bus (13).
7. The remote distributed energy storage control device according to claim 6, wherein the charge detector (42) transmits the state of charge of the storage battery (112) to the controller (2), and the voltage sensor and the current sensor cooperate with the controller (2) to monitor the output power of the photovoltaic array (111), the consumed power of the direct current bus (13), and the charging and discharging power of the storage battery (112).
8. The remote distributed energy storage control apparatus of claim 6, wherein the charge detector (42) comprises a coulomb counter chip (421) and a coulomb counter sampler (422), the coulomb counter sampler (422) being coupled to the battery (112) and to the controller (2) via the coulomb counter chip (421).
9. The remote distributed energy storage control device according to claim 7, further comprising an early warning unit (14) and a temperature sensor, wherein the temperature sensor is connected to the storage battery (112), and the controller (2) detects the temperature of the storage battery (112) and a critical state of charge thereof in a charging and discharging process through the early warning unit (14).
10. The remote distributed energy storage control device according to claim 1, further comprising a display unit (5), wherein the display unit (5) is connected to the controller (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222650674.9U CN218386826U (en) | 2022-10-09 | 2022-10-09 | Remote distributed energy storage control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222650674.9U CN218386826U (en) | 2022-10-09 | 2022-10-09 | Remote distributed energy storage control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218386826U true CN218386826U (en) | 2023-01-24 |
Family
ID=84928789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222650674.9U Expired - Fee Related CN218386826U (en) | 2022-10-09 | 2022-10-09 | Remote distributed energy storage control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218386826U (en) |
-
2022
- 2022-10-09 CN CN202222650674.9U patent/CN218386826U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109861389B (en) | Photovoltaic microgrid energy management system based on LoRa technology | |
| CN102104257A (en) | Energy storage system of apartment building, integrated power management system, and method of controlling the system | |
| CN107749642A (en) | A kind of household energy router | |
| CN111245096B (en) | Distributed photovoltaic data acquisition terminal, system and data processing method | |
| CN102810909A (en) | Energy management method capable of matching distributed power sources with loads | |
| CN103138636A (en) | Hybrid power supply system for photovoltaic off network, photovoltaic combined network and energy storage | |
| CN110855006B (en) | Distributed optical storage and charging regulation and control system based on edge internet of things agent | |
| CN113554352A (en) | Regional power grid electric energy distribution and scheduling system and method | |
| CN110994681A (en) | Energy storage control system for realizing photovoltaic consumption and photovoltaic consumption method | |
| CN105762831A (en) | Energy network system | |
| CN110994652A (en) | Energy storage device and energy storage system | |
| CN113595235B (en) | Energy storage management system based on ubiquitous power internet of things | |
| CN116819355B (en) | Energy-saving test system for direct-current bus of micro-grid at rear section of battery cell | |
| CN103532213B (en) | Remote communication base station-oriented heterogeneous multimode battery management system | |
| CN105576698B (en) | Fault-tolerance aerogenerator group Energy Management System based on multiple agent and method | |
| CN218386826U (en) | Remote distributed energy storage control device | |
| CN112510768A (en) | Power supply system | |
| CN111711214A (en) | Micro-grid dispatching monitoring system | |
| CN114336583B (en) | 5G base station light storage direct current micro-grid energy supply system and method | |
| CN116455045A (en) | Base station light reserve power supply guarantee system based on lead-acid storage battery | |
| CN216530731U (en) | Synthesize green energy efficiency intelligence management and control system | |
| CN110365096A (en) | A kind of communication base station solar DC electricity-generating control method | |
| CN207490530U (en) | A kind of household energy router | |
| CN215681813U (en) | Parallel energy storage system | |
| Smend et al. | A Smart Grid Solution Integrating Distributed Generation and Internet of Things Sensors for Demand Side Management and Fault Identification: Case Study |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230124 |