CN114400690A - Energy storage control management system for energy storage container and energy storage container - Google Patents

Energy storage control management system for energy storage container and energy storage container Download PDF

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Publication number
CN114400690A
CN114400690A CN202111624658.6A CN202111624658A CN114400690A CN 114400690 A CN114400690 A CN 114400690A CN 202111624658 A CN202111624658 A CN 202111624658A CN 114400690 A CN114400690 A CN 114400690A
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China
Prior art keywords
energy storage
touch screen
management system
power
tpc
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Pending
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CN202111624658.6A
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Chinese (zh)
Inventor
鲁统文
徐维维
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Nantong CIMC Special Transportation Equipment Manufacture Co Ltd
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Nantong CIMC Special Transportation Equipment Manufacture Co Ltd
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Priority to CN202111624658.6A priority Critical patent/CN114400690A/en
Publication of CN114400690A publication Critical patent/CN114400690A/en
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    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
    • 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
    • H02J15/00—Systems for storing electric energy
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages

Abstract

The invention discloses an energy storage control management system for an energy storage container and the energy storage container. The energy storage control management system comprises a battery management system BMS, an energy storage converter PCS, a programmable logic controller PLC and an industrial control configuration touch screen controller TPC. The BMS is used for managing the energy storage battery; the PCS is used for controlling the charging and discharging processes of the energy storage battery; the PLC is used for implementing analysis and operation; the TPC is used for realizing a man-machine interaction function. And the TPC is respectively in communication connection with the BMS, the PCS and the PLC. The TPC displays data obtained from the BMS, data obtained from the PCS and data set by a user and transmits the data to the PLC, the PLC analyzes the data and generates control instructions, then the control instructions are fed back to the TPC, and the TPC transmits the control instructions obtained from the PLC to the BMS and the PCS to realize the control of the BMS and the PCS, so that the charging and discharging processes of the energy storage battery can be managed, and the energy storage power station can run independently and locally.

Description

Energy storage control management system for energy storage container and energy storage container
Technical Field
The invention relates to the technical field of energy storage, in particular to an energy storage control management system for an energy storage container and the energy storage container with the energy storage control management system.
Background
The container type energy storage power station is an energy storage micro-grid power station system integrated by an electrochemical energy storage battery and a container, and can be conveniently connected with a power generation side, a power transmission side and a power utilization side of a municipal power grid in a grid-connected mode. With the rapid development of new energy industries such as wind power, photovoltaic and the like, the stored energy industry has been listed as a necessary electric energy management means. The stored energy can not only improve the stability of the power system, but also be used as an electric energy management means such as expanding power utilization requirements of a power utilization side, expanding the utilization mode of power equipment, compensating power load, and clipping peak and filling valley.
Compared with the traditional station house type energy storage power station, the container type energy storage power station is independent in energy management, a large-capacity energy storage power station can be formed by a plurality of container type energy storage power stations, a single container type energy storage power station also needs to independently and locally operate as an independent energy storage small power station, the method of the prior art adopts a PLC as a data transmission and processing center, along with the continuous increase of data volume, the control requirement of a battery system is improved, the PLC has no man-machine interaction function, the data transmission rate is low, the system instruction response is low, and the corresponding defects of action delay and the like are gradually reflected.
Therefore, there is a need for a control and management system for an energy storage container and an energy storage container having the same to at least partially solve the above problems.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. The summary of the present application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
A first aspect of the invention provides an energy storage control management system for an energy storage container, comprising:
a battery management system BMS for managing the energy storage battery;
the energy storage converter PCS is used for controlling the charging and discharging processes of the energy storage battery;
the programmable logic controller PLC is used for implementing analysis operation; and
an industrial control configuration touch screen controller TPC for realizing the human-computer interaction function,
wherein, the industrial control configuration touch screen controller TPC is respectively in communication connection with the battery management system BMS, the energy storage converter PCS and the programmable logic controller PLC,
the energy storage control management system is configured in such a way that the industrial control configuration touch screen controller TPC displays data obtained from the battery management system BMS, data obtained from the energy storage converter PCS and data set by a user and transmits the data to the programmable logic controller PLC, the programmable logic controller PLC analyzes the data and generates a control instruction, then the control instruction is fed back to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC transmits the control instruction obtained from the programmable logic controller PLC to the battery management system BMS and the energy storage converter PCS so as to realize control of the battery management system BMS and the energy storage converter PCS.
According to the invention, the industrial control configuration touch screen controller TPC is respectively in communication connection with the battery management system BMS, the energy storage converter PCS and the programmable logic controller PLC, so that local independent operation of the energy storage power station can be realized. The industrial control configuration touch screen controller TPC improves the convenience of man-machine interaction through a touch screen and configuration software, accurately controls the charging and discharging process of the energy storage battery by utilizing the powerful analysis and calculation capacity of the programmable logic controller PLC, has universality and economy, and is suitable for industrial scenes.
Optionally, the industrial control configuration touch screen controller TPC is in communication connection with the battery management system BMS, the energy storage converter PCS and the programmable logic controller PLC through a Modbus communication channel, respectively.
According to the invention, the industrial control configuration touch screen controller TPC acquires data and transmission instructions based on a Modbus communication protocol, can read battery related parameters in a battery management system BMS and parameters such as current, voltage and temperature in an energy storage converter PCS within minimum 20ms, and can realize rapid transmission of the data of the whole energy storage container within 20ms, rapidly control the working state of each device (PCS, BMS and the like) of the whole energy storage container, and effectively avoid uncontrollable factors caused by untimely response. Each device is communicated with the industrial control configuration touch screen controller TPC through a standard communication protocol by adopting an independent channel, so that the anti-interference performance is high, and the industrial control configuration touch screen controller TPC is suitable for industrial scenes.
Optionally, the industrial control configuration touch screen controller TPC is configured to set a working mode of the energy storage control management system.
According to the invention, the working mode of the energy storage battery is set by a worker through configuration software of the industrial control configuration touch screen controller TPC.
Optionally, the industrial control configuration touch screen controller TPC is configured to obtain the load side power consumption from the load side electricity meter through the 485 collector and the Modbus communication channel, and display and transmit the load side power consumption to the programmable logic controller PLC.
According to the invention, the industrial control configuration touch screen controller TPC acquires the power consumption power of the load side through the 485 collector.
Optionally, the operation mode includes an off-grid electricity utilization operation mode, in which:
the industrial control configuration touch screen controller TPC is configured to set an off-grid power utilization time period and send the off-grid power utilization time period data to the programmable logic controller PLC,
and the programmable logic controller PLC is configured to control the discharge power of the energy storage converter PCS to be the power consumption power of the load side through the industrial control configuration touch screen controller TPC in the off-grid power consumption time period.
Further, in the off-grid electricity utilization operating mode:
the industrial control configuration touch screen controller TPC is configured to acquire the electric quantity of the energy storage battery from the battery management system BMS and transmit the electric quantity of the energy storage battery to the programmable logic controller PLC,
and the programmable logic controller PLC is configured to control the energy storage converter PCS to stop discharging through the industrial control configuration touch screen controller TPC when the electric quantity of the energy storage battery is lower than an electric quantity lower limit value.
The energy storage control management system can accurately control the off-grid discharge work of the energy storage battery.
Optionally, the operating mode comprises a power compensation operating mode in which:
the industrial control configuration touch screen controller TPC is configured to set a power compensation time period and send the power compensation time period data to the programmable logic controller PLC,
and the programmable logic controller PLC is configured to control the energy storage converter PCS to charge or discharge through the industrial control configuration touch screen controller TPC in the power compensation time period.
Further, in the power compensation mode of operation:
the industrial control configuration touch screen controller TPC is configured to set a power grid capacity and send the power grid capacity data to the programmable logic controller PLC,
the programmable logic controller PLC is configured to:
when the power consumption of the load side is larger than or equal to the power grid capacity, the programmable logic controller PLC controls the discharge power of the energy storage converter PCS to be the power consumption of the load side minus the power grid capacity through the industrial control configuration touch screen controller TPC,
when the load side power consumption is smaller than the power grid capacity, the programmable logic controller PLC controls the chargeable power of the energy storage converter PCS to be the power grid capacity minus the load side power consumption through the industrial control configuration touch screen controller TPC.
The energy storage control management system can accurately control the power consumption compensation work of the energy storage battery to the load.
Optionally, the operation mode comprises a peak clipping and valley filling operation mode, in which:
the industrial control configuration touch screen controller TPC is configured to set a peak clipping and valley filling time period and send data of the peak clipping and valley filling time period to the programmable logic controller PLC,
and the programmable logic controller PLC is configured to control the energy storage converter PCS to charge or discharge through the industrial control configuration touch screen controller TPC in the peak clipping and valley filling time period.
Further, the programmable logic controller PLC is configured to, when the peak clipping and valley filling time period set by the user exceeds a preset peak clipping and valley filling time period range, control the industrial configuration touch screen controller TPC by the programmable logic controller PLC to remind the user of setting an error and request the user to reset.
Or, in the peak clipping and valley filling operation mode:
the industrial control configuration touch screen controller TPC is configured to be used for setting power grid capacity and sending power grid capacity data to the programmable logic controller PLC, and the programmable logic controller PLC is configured to control the charging power of the energy storage converter PCS to be the power grid capacity minus the load side power consumption through the industrial control configuration touch screen controller TPC when the load side power consumption is smaller than the power grid capacity in the charging time period of the energy storage battery; and when the power consumption of the load side is greater than or equal to the capacity of the power grid, the Programmable Logic Controller (PLC) controls the charging power of the energy storage converter (PCS) to be zero through the industrial control configuration touch screen controller (TPC).
Or, in the peak clipping and valley filling operation mode:
the industrial control configuration touch screen controller TPC is configured to set the rated output power of the energy storage converter PCS and send the rated output power data of the energy storage converter PCS to the programmable logic controller PLC,
the programmable logic controller PLC is configured to control the discharging power of the energy storage converter PCS to be the load side power consumption power through the industrial control configuration touch screen controller TPC when the load side power consumption power is smaller than the rated output power of the energy storage converter PCS in the discharging time period of the energy storage battery; when the power consumption of the load side is greater than or equal to the rated output power of the energy storage converter PCS, the programmable logic controller PLC controls the discharge power of the energy storage converter PCS to be the rated output power of the energy storage converter PCS through the industrial control configuration touch screen controller TPC.
Or, in the peak clipping and valley filling operation mode:
the industrial control configuration touch screen controller TPC is configured to:
acquiring voltage and current data of the energy storage converter PCS, transmitting the voltage and current data to the programmable logic controller PLC,
the PLC is used for setting the allowed charging power and the allowed discharging power of the energy storage battery and transmitting the values of the allowed charging power and the allowed discharging power to the PLC;
the PLC is configured to calculate the working power of the energy storage converter PCS according to the voltage and current data, and complete the following work:
in the charging time period of the energy storage battery, when the working power of the energy storage converter PCS is larger than or equal to the allowable charging power, the programmable logic controller PLC controls the working power of the energy storage converter PCS to be smaller than the allowable charging power through the industrial control configuration touch screen controller TPC, and/or
In the discharging time period of the energy storage battery, when the working power of the energy storage converter PCS is larger than or equal to the allowable discharging power, the programmable logic controller PLC controls the working power of the energy storage converter PCS to be smaller than the allowable discharging power through the industrial control configuration touch screen controller TPC.
According to the energy storage control management system, the peak clipping and valley filling work of the energy storage battery can be accurately controlled.
Optionally, the energy storage control management system further comprises an air conditioning system, the air conditioning system is in communication connection with the industrial control configuration touch screen controller TPC,
the industrial control configuration touch screen controller TPC is configured to display and transmit the cell temperature data inside the energy storage battery acquired from the battery management system BMS to the programmable logic controller PLC,
the energy storage control management system is configured to:
when the cell temperature is higher than a preset cell temperature upper limit, the programmable logic controller PLC sends a refrigeration starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to refrigerate after receiving the refrigeration starting signal;
and when the cell temperature is lower than a preset cell temperature lower limit, the programmable logic controller PLC sends a heating starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to heat after receiving the heating starting signal.
Furthermore, the energy storage control management system also comprises a temperature sensor for sensing the temperature in the container,
the industrial control configuration touch screen controller TPC is configured to be in communication connection with the temperature sensor to acquire the indoor temperature of the energy storage container, display and transmit the indoor temperature to the programmable logic controller PLC,
the energy storage control management system is configured to:
and when the indoor temperature is higher than a preset indoor temperature upper limit, the programmable logic controller PLC sends a refrigeration starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to refrigerate after receiving the refrigeration starting signal.
And when the indoor temperature is lower than a preset indoor temperature lower limit, the programmable logic controller PLC sends a heating starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to heat after receiving the heating starting signal.
Furthermore, the energy storage control management system also comprises a humidity sensor used for sensing the humidity in the container,
the industrial control configuration touch screen controller TPC is configured to be in communication connection with the humidity sensor to acquire the indoor humidity of the energy storage container, display and transmit the indoor humidity to the programmable logic controller PLC,
the energy storage control management system is configured in such a way that when the indoor humidity is larger than a preset upper limit of the indoor humidity, the programmable logic controller PLC sends a dehumidification starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to dehumidify after receiving the dehumidification starting signal.
The environmental control strategy in the prior art only adopts the temperature data collected by the temperature sensor near the battery to control the starting and stopping of the air-conditioning equipment in the container, and has the problems that the internal temperature of the battery is not matched with the external measurement, the time difference is obvious, and the heat dissipation of the battery is not facilitated. Meanwhile, the condition that the environment control equipment is single in starting and stopping judgment input source is avoided due to the fact that humidity and other related data are not collected, long-term use of the battery is not facilitated, the service life of the battery is influenced, and benefits are reduced. According to the energy storage control management system, the work of the air conditioning system is controlled by monitoring the internal temperature of the energy storage battery and the environment temperature and humidity of the energy storage container, a proper working environment is provided for the energy storage battery, and the service life of the battery is effectively prolonged.
Optionally, the industrial control configuration touch screen controller TPC is in communication connection with the electric energy management system EMS through a Modbus communication channel.
According to the invention, the industrial control configuration touch screen controller TPC is in communication connection with the remote electric energy management system EMS, so that the independent development or remote scheduling of the energy storage system is realized.
Optionally, the industrial control configuration touch screen controller TPC is configured to acquire dangerous case information through a 485 collector and a Modbus communication channel, display and transmit the dangerous case information to the programmable logic controller PLC,
the programmable logic controller PLC is configured to control the battery management system BMS to switch off the energy storage battery, control the energy storage converter PCS to switch off and disconnect the energy storage battery from the power grid through the industrial control configuration touch screen controller TPC when the dangerous case information reaches an alarm threshold value,
wherein the hazardous condition information is derived from one or more of sensed data of a fire sensor of the energy storage container, sensed data of a flooding sensor of the energy storage container, and weather data of a weather station.
According to the invention, the energy storage control management system can monitor one or more of fire, flood and severe weather, and can timely stop equipment operation when a dangerous case exists.
Optionally, the industrial control configuration touch screen controller TPC is configured to acquire and display one or more of the following data:
the monitoring system comprises internal equipment data of the battery management system BMS, alarm information of the battery management system BMS, internal equipment voltage and/or current data of the energy storage converter PCS and the alarm information of the energy storage converter PCS.
According to the invention, the industrial control configuration touch screen controller TPC can not only acquire data, but also display the data.
Optionally, the industrial control configuration touch screen controller TPC is configured to obtain the power consumption of the energy storage control management system from the auxiliary electric meter through a 485 collector and a Modbus communication channel.
According to the invention, the energy storage control management system obtains the power consumption of the energy storage container in a Modbus communication mode.
Optionally, the programmable logic controller PLC is connected to one or more of the following devices through a relay:
the door switch, the opening and closing of the energy storage container, the alarm device and the lighting system.
According to the invention, the energy storage control management system can control a plurality of scattered devices of the energy storage container.
A second aspect of the invention provides an energy storage container comprising an energy storage battery and an energy storage control management system as described above, wherein said battery management system BMS and said energy storage converter PCS are coupled to said energy storage battery.
According to the invention, the industrial control configuration touch screen controller TPC is respectively in communication connection with the battery management system BMS, the energy storage converter PCS and the programmable logic controller PLC, so that local independent operation of the energy storage container can be realized. The industrial control configuration touch screen controller TPC improves the convenience of man-machine interaction through a touch screen and configuration software, accurately controls the charging and discharging process of the energy storage battery by utilizing the powerful analysis and calculation capacity of the programmable logic controller PLC, has universality and economy, and is suitable for industrial scenes.
Drawings
The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
In the drawings:
fig. 1 is a control circuit topology diagram of an energy storage control management system for an energy storage container according to an alternative embodiment of the present invention;
fig. 2 is a control flow diagram of an energy storage control management system for an energy storage container according to an alternative embodiment of the present invention;
fig. 3 is a flow chart of the operation of an off-grid electricity usage mode of an energy storage control management system for energy storage containers according to an alternative embodiment of the present invention;
fig. 4 is an operational flow diagram of a power compensation mode of operation of an energy storage control management system for an energy storage container according to an alternative embodiment of the present invention; and
fig. 5 is an operational flow diagram of a peak clipping and valley filling operational mode of an energy storage control management system for an energy storage container according to an alternative embodiment of the present invention.
Description of reference numerals:
10: industrial control configuration touch screen controller (TPC)
20: programmable Logic Controller (PLC)
30: industrial switch
40: relay with a movable contact
51: battery Management System (BMS)
52: energy storage converter (PCS)
60: modbus gateway
65: 485 collector
71: door switch
72: switching on and off
73: alarm device
75: lighting system
81: temperature sensor
82: humidity sensor
83: weather station
84: fire-fighting probe
85: load side ammeter
86: auxiliary electric meter
87: air conditioning system
88: water immersion sensor
90: electric Energy Management System (EMS)
100: energy storage control management system
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to obscure the embodiments of the invention.
It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, the same reference numerals are used to designate the same elements for the sake of clarity, and thus their description will be omitted.
The following detailed description is to be read in connection with specific embodiments. To avoid repetition, the same structure and function are described only once in the respective embodiments.
The invention provides an energy storage control management system for an energy storage container and the energy storage container with the energy storage control management system.
As shown in fig. 1, in an embodiment, the energy storage control Management System 100 includes a Battery Management System 51(BMS, Battery Management System), an energy storage converter 52(PCS, Power Conversion System), a Programmable Logic Controller 20 (PLC), and a Touch screen Controller 10(TPC, Touch Panel Controller) with industrial configuration. The industrial control configuration touch screen controller 10 is in communication connection with the battery management system 51, the energy storage converter 52 and the programmable logic controller 20, respectively. Preferably, the industrial configuration touch screen controller 10 is in communication connection with the battery management system 51, the energy storage converter 52 and the programmable logic controller 20 through Modbus communication channels.
In use, the battery management system 51 is coupled to the energy storage battery for managing the energy storage battery, for example, having a function of measuring the battery voltage, so as to prevent or avoid abnormal conditions such as over-discharge, over-charge, over-temperature, etc. of the battery. The energy storage converter 52 is coupled to the energy storage battery for controlling the charging and discharging process of the energy storage battery. In the electrochemical energy storage system, the energy storage converter 52 is connected between the energy storage battery system and the power grid, for example, bidirectional conversion of electric energy can be realized, alternating current and direct current conversion can be performed, and power can be directly supplied to an alternating current load without the power grid. The programmable logic controller 20 is used to perform analysis operations. The industrial configuration touch screen controller 10 includes a touch screen and configuration control software, and is used for implementing a human-computer interaction function.
The energy storage control management system 100 is configured to: the industrial configuration touch screen controller 10 displays the data obtained from the battery management system 51, the data obtained from the energy storage converter 52 and the data set by the user, and transmits the data to the programmable logic controller 20; the programmable logic controller 20 analyzes the data and generates control instructions, and then the control instructions are fed back to the industrial configuration touch screen controller 10; the industrial configuration touch screen controller 10 transmits the control instruction obtained from the programmable logic controller 20 to the battery management system 51 and the energy storage converter 52, so as to control the battery management system 51 and the energy storage converter 52, thereby controlling the charging and discharging of the energy storage battery.
Preferably, the battery management system 51 and the energy storage converter 52 are coupled to the industrial configuration touch screen controller 10 through the industrial switch 30.
Preferably, the energy storage control management system 100 includes a plurality of devices for obtaining relevant information; the industrial configuration touch screen controller 10 is in communication connection with the devices, so that a plurality of information about the energy storage container is obtained from the devices and is transmitted to the programmable logic controller 20; the programmable logic controller 20 analyzes the information and generates control instructions, and then transmits the control instructions to the industrial configuration touch screen controller 10, and the industrial configuration touch screen controller 10 controls the operation of the related devices, or the programmable logic controller 20 controls the operation of the related devices through the relay 40.
Preferably, the industrial control configuration touch screen controller 10 obtains a plurality of information about the energy storage container through the 485 acquirer. For example, the energy storage control management system 100 includes one or more of a temperature sensor 81, a humidity sensor 82, a fire probe 84, a load side meter 85, an auxiliary meter 86, an air conditioning system 87, and a water immersion sensor 88, which establish a Modbus communication connection with the industrial control configuration touch screen controller 10, for example, sequentially via the 485 collector 65, the Modbus gateway 60, and the industrial switch 30. Wherein the temperature sensor 81 is used for sensing the temperature inside the energy storage container; a humidity sensor 82 for sensing the humidity inside the energy storage container; the fire probe 84 is used for detecting the fire information of the energy storage container; the load side electricity meter 85 is used for measuring the electric power used by the load; the auxiliary electric meter 86 is used for metering the electric power of the energy storage control management system 100; the air conditioning system 87 is used for adjusting the temperature and the humidity of the energy storage container; the water sensor 88 is used to sense whether the container is flooded. The weather station 83 also establishes a Modbus communication connection with the industrial configuration touch screen controller 10 through the same path (485 collector 65 → Modbus gateway 60 → industrial switch 30) for providing weather information of the location of the energy storage container.
Preferably, the industrial configuration touch screen controller 10 is configured to periodically acquire the related information at a certain sampling period. For example, the industrial configuration touch screen controller 10 periodically collects information from the temperature sensor 81, the humidity sensor 82, the weather station 83, the fire probe 84, the load side electricity meter 85, the auxiliary electricity meter 86, the air conditioning system 87, and the water immersion sensor 88.
Preferably, the industrial configuration touch screen controller 10 is configured to display the information it receives and transmit the information to the programmable logic controller 20. That is, the industrial configuration touch screen controller 10 may display information from the temperature sensor 81, the humidity sensor 82, the weather station 83, the fire probe 84, the load side electricity meter 85, the auxiliary electricity meter 86, the air conditioning system 87, and the water sensor 88.
Preferably, the programmable logic controller 20 controls one or more of the door switch 71, the opening and closing switch 72, the alarm device 73 and the lighting system 75 of the energy storage container through the relay 40.
Preferably, the industrial configuration touch screen controller 10 is also communicatively coupled (e.g., via Modbus communication protocol) to a remote power Management System 90 (EMS). When the industrial control configuration touch screen controller 10 is connected with the electric energy management system 90 through a network, the energy storage containers are in a grid-connected working mode, and the power station systems of the plurality of energy storage containers are uniformly managed. When the industrial control configuration touch screen controller 10 is disconnected from the power management system 90, the energy storage container can perform independent work.
The energy storage control management system 100 can set the working mode of the energy storage battery through the industrial control configuration touch screen controller 10, and control the energy storage battery to work according to the set parameters.
Specifically, as shown in fig. 2, after the energy storage control management system 100 is operated, the industrial control configuration touch screen controller 10 first obtains data of the fire probe 84 and transmits the data to the programmable logic controller 20. If the programmable logic controller 20 determines that there is a fire (the fire information reaches the alarm threshold), alarm and fire emergency processing is performed, for example, the battery management system 51 and the energy storage converter 52 are controlled to be turned off by the industrial control configuration touch screen controller 10, so that the energy storage battery does not work, and meanwhile, the energy storage battery is disconnected from the power grid, the power failure of the equipment is completed, an alarm bell is sounded, and the like.
If there is no fire, the energy storage control management system 100 continues to detect whether the device is ready. For example, the industrial configuration touch screen controller 10 acquires weather information of the weather station 83, acquires sensing data of the water sensor 88, acquires alarm information of the battery management system 51, and acquires alarm information of the energy storage converter 52. These data are transmitted to the programmable logic controller 20 for analysis. When the dangerous case information (water inlet data or meteorological data) reaches an alarm threshold value, or the battery management system 51 alarms, or the energy storage converter 52 alarms, the programmable logic controller 20 controls the battery management system 51 and the energy storage converter 52 to be switched off through the industrial control configuration touch screen controller 10, so that the energy storage battery does not work, and meanwhile, the energy storage battery is disconnected from the power grid.
Preferably, when there is dangerous case and alarm information, the industrial control configuration touch screen controller 10 displays the dangerous case and alarm information so that the staff can know and process in time. It is understood that the energy storage control management system 100 periodically checks the above-mentioned dangerous case and alarm information at certain sampling intervals during the operation.
Under the condition of no dangerous case and no alarm, a worker sets whether the energy storage battery works under automatic control or manual control through the industrial control configuration touch screen controller 10. In the manual control mode, a worker manually controls the start and stop buttons of the energy storage converter 52 on the industrial control configuration touch screen controller 10 to realize manual control of charging and discharging of the energy storage battery. Under an automatic control mode, a worker sets working modes of the energy storage battery through the industrial control configuration touch screen controller 10, wherein the working modes mainly comprise an off-grid power utilization working mode, a power compensation working mode and a peak clipping and valley filling working mode. In each operating mode, the operator sets the operating parameters through the industrial configuration touch screen controller 10, and the operating parameters are transmitted to the programmable logic controller 20. Meanwhile, the industrial configuration touch screen controller 10 acquires the internal device data of the battery management system 51 and the internal device voltage and/or current data of the energy storage converter 52 in real time, and transmits the data to the programmable logic controller 20. The programmable logic controller 20 analyzes the setting parameters and the operation data and then generates instruction information. The instruction information is transmitted to the industrial control configuration touch screen controller 10, and the operation of the battery management system 51 and the energy storage converter 52 is controlled through the industrial control configuration touch screen controller 10, that is, the charging and discharging process of the energy storage battery is automatically controlled according to the set operating parameters.
Preferably, the industrial configuration touch screen controller 10 displays information obtained from the battery management system 51 and the energy storage converter 52 at the same time.
Specifically, as shown in fig. 3, in the off-grid power utilization mode, the industrial configuration touch screen controller 10 is configured to set an off-grid power utilization time period and send data of the off-grid power utilization time period to the programmable logic controller 20. The plc 20 is configured to control the discharging power of the energy storage converter 52 to be the load-side power consumption power through the industrial configuration touch screen controller 10 during the off-grid power consumption period (as described above, the load-side power consumption power data is derived from the load-side power meter 85).
In the off-grid power utilization mode, while discharging, the industrial configuration touch screen controller 10 is configured to obtain the power of the energy storage battery from the battery management system 51 and transmit the power of the energy storage battery to the programmable logic controller 20. The programmable logic controller 20 is configured to control the energy storage converter 52 to stop discharging through the industrial control configuration touch screen controller 10 by the programmable logic controller 20 when the electric quantity of the energy storage battery is lower than the electric quantity lower limit value.
Specifically, as shown in fig. 4, in the power compensation operation mode, the industrial configuration touch screen controller 10 is configured to set a power compensation time period and send the power compensation time period data to the programmable logic controller 20. The programmable logic controller 20 is configured to control the energy storage converter PCS to charge or discharge in the power compensation time period through the industrial configuration touch screen controller 10.
In the power compensation mode of operation, the industrial configuration touchscreen controller 10 is configured to set a grid capacity and send grid capacity data to the programmable logic controller 20. The programmable logic controller 20 is configured to: when the load side electricity consumption power (as mentioned above, the load side electricity consumption power data is from the load side electricity meter 85) is greater than or equal to the power grid capacity, the programmable logic controller 20 controls the discharge power of the energy storage converter 52 through the industrial control configuration touch screen controller 10 to be the load side electricity consumption power minus the power grid capacity, that is, the energy storage battery discharges to ensure the normal work of the load when the load electricity consumption is high; when the power consumption of the load side is smaller than the capacity of the power grid, the programmable logic controller 20 controls the chargeable power of the energy storage converter 52 through the industrial control configuration touch screen controller 10 to be the power grid capacity minus the power consumption of the load side, that is, the energy storage battery is charged when the power consumption of the load is low.
Specifically, as shown in fig. 5, in the peak and valley clipping operation mode, the industrial configuration touch screen controller 10 is configured to set a peak and valley clipping time period and send the peak and valley clipping time period data to the programmable logic controller 20. The programmable logic controller 20 is configured to control the energy storage converter 52 to charge or discharge during the peak load reduction period through the industrial configuration touch screen controller 10. That is, during the discharging time period, the energy storage converter 52 discharges the energy storage battery, so as to achieve the purpose of peak clipping; during the charging period, the energy storage converter 52 charges the energy storage battery to achieve the purpose of 'valley filling'.
After the programmable logic controller 20 receives the data of the peak clipping and valley filling time period set by the user, when the peak clipping and valley filling time period set by the user exceeds the range of the preset peak clipping and valley filling time period, the programmable logic controller 20 controls the industrial configuration touch screen controller 10 to remind the user of setting errors and requesting the user to reset. For example, the preset peak clipping time period is 9:00-11:00 in the morning, and the preset valley filling time period is 1:00-3:00 in the night. If the user sets the peak clipping time period to be 7:00-8:00 or sets the valley filling time period to be 20:00-21:00, and the set time exceeds the preset time period range, the industrial configuration touch screen controller 10 reminds the user of setting errors and requires the user to reset.
In the peak clipping and valley filling mode, the industrial configuration touch screen controller 10 is configured to set the grid capacity and send the grid capacity data to the programmable logic controller 20. The industrial control configuration touch screen controller 10 is further configured to set the rated output power of the energy storage converter 52, and send the rated output power data of the energy storage converter 52 to the programmable logic controller 20. The industrial configuration touch screen controller 10 is further configured to set the allowed charging power and the allowed discharging power of the energy storage battery, and transmit the allowed charging power value and the allowed discharging power value of the energy storage battery to the programmable logic controller 20.
In the charging time period of the energy storage battery, when the load side electricity consumption power (as mentioned above, the load side electricity consumption power data is from the load side electricity meter 85) is smaller than the grid capacity, the programmable logic controller 20 controls the charging power of the energy storage converter 52 to be the grid capacity minus the load side electricity consumption power through the industrial control configuration touch screen controller 10; when the power consumption of the load side is greater than or equal to the capacity of the power grid, the programmable logic controller 20 controls the charging power of the energy storage converter 52 to be zero through the industrial control configuration touch screen controller 10.
To further ensure the safety of the energy storage battery, during the charging period of the energy storage battery, the industrial control configuration touch screen controller 10 is configured to obtain the voltage and current data of the energy storage converter 52 and transmit the voltage and current data to the programmable logic controller 20. The programmable logic controller 20 is configured to calculate the operating power of the energy storage converter 52 from the voltage and current data (e.g., multiplying the voltage by a current value). When the working power (charging power) of the energy storage converter 52 is greater than or equal to the allowable charging power of the energy storage battery, the programmable logic controller 20 controls the working power of the energy storage converter 52 to be less than the allowable charging power of the energy storage battery through the industrial control configuration touch screen controller 10.
In the discharging time period of the energy storage battery, when the power consumption of the load side is less than the rated output power of the energy storage converter 52, the programmable logic controller 20 controls the discharging power of the energy storage converter 52 to be the power consumption of the load side through the industrial control configuration touch screen controller 10; when the power consumption of the load side is greater than or equal to the rated output power of the energy storage converter 52, the programmable logic controller 20 controls the discharge power of the energy storage converter 52 to be the rated output power of the energy storage converter 52 through the industrial control configuration touch screen controller 10.
To further ensure the safety of the energy storage battery, during the discharging period of the energy storage battery, the industrial control configuration touch screen controller 10 is configured to obtain the voltage and current data of the energy storage converter 52 and transmit the voltage and current data to the programmable logic controller 20. The programmable logic controller 20 is configured to calculate the operating power of the energy storage converter 52 from the voltage and current data (e.g., multiplying the voltage by a current value). When the working power (discharge power) of the energy storage converter 52 is greater than or equal to the allowable discharge power of the energy storage battery, the programmable logic controller 20 controls the working power of the energy storage converter 52 to be less than the allowable discharge power of the energy storage battery through the industrial control configuration touch screen controller 10.
In addition, during the operation of the energy storage battery, the industrial configuration touch screen controller 10 is preferably configured to periodically display the cell temperature data inside the energy storage battery, which is acquired from the battery management system 51, and transmit the cell temperature data to the programmable logic controller 20. The energy storage control management system 100 is configured to: when the cell temperature is higher than the preset upper limit of the cell temperature, the programmable logic controller 20 sends a refrigeration starting signal to the industrial control configuration touch screen controller 10, and after receiving the refrigeration starting signal, the industrial control configuration touch screen controller 10 controls the air conditioning system 87 to refrigerate through the 485 collector and the Modbus communication channel; when the cell temperature is lower than the preset cell temperature lower limit, the programmable logic controller 20 sends a heating start signal to the industrial control configuration touch screen controller 10, and after receiving the heating start signal, the industrial control configuration touch screen controller 10 controls the air conditioning system 87 to heat through the 485 collector and the Modbus communication channel.
Preferably, the industrial configuration touch screen controller 10 is configured to periodically obtain the room temperature of the energy storage container from the temperature sensor 81, and display and transmit the room temperature to the programmable logic controller 20. The energy storage control management system 100 is configured to: when the indoor temperature is higher than the preset indoor temperature upper limit, the programmable logic controller 20 sends a refrigeration starting signal to the industrial control configuration touch screen controller 10, and the industrial control configuration touch screen controller 10 controls the air conditioning system 87 to refrigerate after receiving the refrigeration starting signal; when the indoor temperature is lower than the preset indoor temperature lower limit, the programmable logic controller 20 sends a heating start signal to the industrial control configuration touch screen controller 10, and the industrial control configuration touch screen controller 10 controls the air conditioning system 87 to heat after receiving the heating start signal.
Preferably, the industrial configuration touch screen controller 10 is configured to periodically obtain the indoor humidity of the energy storage container from the humidity sensor 82, and display and transmit the indoor humidity to the programmable logic controller 20. The energy storage control management system 100 is configured to, when the indoor humidity is greater than the preset upper limit of the indoor humidity, the programmable logic controller 20 sends a dehumidification start signal to the industrial configuration touch screen controller 10, and the industrial configuration touch screen controller 10 controls the air conditioning system 87 to dehumidify after receiving the dehumidification start signal.
According to the energy storage control management system for the energy storage container, the industrial control configuration touch screen controller TPC is in communication connection with the programmable logic controller PLC, the battery management system BMS and the energy storage converter PCS, so that the energy storage power station can independently and locally run.
A second aspect of the invention provides an energy storage container. In a specific embodiment, the energy storage container includes energy storage batteries and the energy storage control management system 100 described above. The battery management system 51 and the energy storage converter 52 are coupled to the energy storage battery, so that the energy storage control management system 100 controls the charging and discharging of the energy storage battery, and the energy storage container operates independently and locally. It will be appreciated that an energy storage container according to the present invention includes all of the features and effects of the energy storage control management system 100.
The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (22)

1. An energy storage control management system for an energy storage container, comprising:
a battery management system BMS for managing the energy storage battery;
the energy storage converter PCS is used for controlling the charging and discharging processes of the energy storage battery;
the programmable logic controller PLC is used for implementing analysis operation; and
an industrial control configuration touch screen controller TPC for realizing the human-computer interaction function,
wherein, the industrial control configuration touch screen controller TPC is respectively in communication connection with the battery management system BMS, the energy storage converter PCS and the programmable logic controller PLC,
the energy storage control management system is configured in such a way that the industrial control configuration touch screen controller TPC displays data obtained from the battery management system BMS, data obtained from the energy storage converter PCS and data set by a user and transmits the data to the programmable logic controller PLC, the programmable logic controller PLC analyzes the data and generates a control instruction, then the control instruction is fed back to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC transmits the control instruction obtained from the programmable logic controller PLC to the battery management system BMS and the energy storage converter PCS so as to realize control of the battery management system BMS and the energy storage converter PCS.
2. The energy storage control management system according to claim 1, wherein the industrial control configuration touch screen controller TPC is in communication connection with the battery management system BMS, the energy storage converter PCS and the programmable logic controller PLC respectively through Modbus communication channels.
3. The energy storage control management system according to claim 1, wherein the industrial control configuration touch screen controller TPC is configured to set an operation mode of the energy storage control management system.
4. The energy storage control management system according to claim 3, wherein the industrial control configuration touch screen controller TPC is configured to obtain the load side power consumption from a load side ammeter through a 485 collector and a Modbus communication channel, and display and transmit the load side power consumption to the PLC.
5. The energy storage control management system according to claim 4, wherein the operating mode comprises an off-grid electricity-using operating mode in which:
the industrial control configuration touch screen controller TPC is configured to set an off-grid power utilization time period and send the off-grid power utilization time period data to the programmable logic controller PLC,
and the programmable logic controller PLC is configured to control the discharge power of the energy storage converter PCS to be the power consumption power of the load side through the industrial control configuration touch screen controller TPC in the off-grid power consumption time period.
6. The energy storage control management system according to claim 5, wherein in the off-grid power mode of operation:
the industrial control configuration touch screen controller TPC is configured to acquire the electric quantity of the energy storage battery from the battery management system BMS and transmit the electric quantity of the energy storage battery to the programmable logic controller PLC,
and the programmable logic controller PLC is configured to control the energy storage converter PCS to stop discharging through the industrial control configuration touch screen controller TPC when the electric quantity of the energy storage battery is lower than an electric quantity lower limit value.
7. The energy storage control management system according to claim 4, wherein the operating mode comprises a power compensation operating mode in which:
the industrial control configuration touch screen controller TPC is configured to set a power compensation time period and send the power compensation time period data to the programmable logic controller PLC,
and the programmable logic controller PLC is configured to control the energy storage converter PCS to charge or discharge through the industrial control configuration touch screen controller TPC in the power compensation time period.
8. The energy storage control management system according to claim 7, wherein in the power compensation mode of operation:
the industrial control configuration touch screen controller TPC is configured to set a power grid capacity and send the power grid capacity data to the programmable logic controller PLC,
the programmable logic controller PLC is configured to:
when the power consumption of the load side is larger than or equal to the power grid capacity, the programmable logic controller PLC controls the discharge power of the energy storage converter PCS to be the power consumption of the load side minus the power grid capacity through the industrial control configuration touch screen controller TPC,
when the load side power consumption is smaller than the power grid capacity, the programmable logic controller PLC controls the chargeable power of the energy storage converter PCS to be the power grid capacity minus the load side power consumption through the industrial control configuration touch screen controller TPC.
9. The energy storage control management system according to claim 4, wherein the operating mode comprises a peak and valley clipping operating mode in which:
the industrial control configuration touch screen controller TPC is configured to set a peak clipping and valley filling time period and send data of the peak clipping and valley filling time period to the programmable logic controller PLC,
and the programmable logic controller PLC is configured to control the energy storage converter PCS to charge or discharge through the industrial control configuration touch screen controller TPC in the peak clipping and valley filling time period.
10. The energy storage control management system according to claim 9, wherein the PLC is configured to control the TPC to remind a user of setting an error and requesting the user to reset when the peak clipping and valley filling time period set by the user is beyond a preset peak clipping and valley filling time period range.
11. The energy storage control management system according to claim 9, wherein in the peak clipping and valley filling mode of operation:
the industrial control configuration touch screen controller TPC is configured to be used for setting power grid capacity and sending power grid capacity data to the programmable logic controller PLC, and the programmable logic controller PLC is configured to control the charging power of the energy storage converter PCS to be the power grid capacity minus the load side power consumption through the industrial control configuration touch screen controller TPC when the load side power consumption is smaller than the power grid capacity in the charging time period of the energy storage battery; and when the power consumption of the load side is greater than or equal to the capacity of the power grid, the Programmable Logic Controller (PLC) controls the charging power of the energy storage converter (PCS) to be zero through the industrial control configuration touch screen controller (TPC).
12. The energy storage control management system according to claim 9, wherein in the peak clipping and valley filling mode of operation:
the industrial control configuration touch screen controller TPC is configured to set the rated output power of the energy storage converter PCS and send the rated output power data of the energy storage converter PCS to the programmable logic controller PLC,
the programmable logic controller PLC is configured to control the discharging power of the energy storage converter PCS to be the load side power consumption power through the industrial control configuration touch screen controller TPC when the load side power consumption power is smaller than the rated output power of the energy storage converter PCS in the discharging time period of the energy storage battery; when the power consumption of the load side is greater than or equal to the rated output power of the energy storage converter PCS, the programmable logic controller PLC controls the discharge power of the energy storage converter PCS to be the rated output power of the energy storage converter PCS through the industrial control configuration touch screen controller TPC.
13. The energy storage control management system according to claim 9, wherein in the peak clipping and valley filling mode of operation:
the industrial control configuration touch screen controller TPC is configured to:
acquiring voltage and current data of the energy storage converter PCS, transmitting the voltage and current data to the programmable logic controller PLC,
the PLC is used for setting the allowed charging power and the allowed discharging power of the energy storage battery and transmitting the values of the allowed charging power and the allowed discharging power to the PLC;
the PLC is configured to calculate the working power of the energy storage converter PCS according to the voltage and current data, and complete the following work:
in the charging time period of the energy storage battery, when the working power of the energy storage converter PCS is larger than or equal to the allowable charging power, the programmable logic controller PLC controls the working power of the energy storage converter PCS to be smaller than the allowable charging power through the industrial control configuration touch screen controller TPC, and/or
In the discharging time period of the energy storage battery, when the working power of the energy storage converter PCS is larger than or equal to the allowable discharging power, the programmable logic controller PLC controls the working power of the energy storage converter PCS to be smaller than the allowable discharging power through the industrial control configuration touch screen controller TPC.
14. The energy storage control management system according to claim 1, further comprising an air conditioning system, wherein the air conditioning system is in communication connection with the industrial control configuration touch screen controller TPC,
the industrial control configuration touch screen controller TPC is configured to display and transmit the cell temperature data inside the energy storage battery acquired from the battery management system BMS to the programmable logic controller PLC,
the energy storage control management system is configured to:
when the cell temperature is higher than a preset cell temperature upper limit, the programmable logic controller PLC sends a refrigeration starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to refrigerate after receiving the refrigeration starting signal;
and when the cell temperature is lower than a preset cell temperature lower limit, the programmable logic controller PLC sends a heating starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to heat after receiving the heating starting signal.
15. The energy storage control management system according to claim 14, further comprising a temperature sensor for sensing a temperature within the container,
the industrial control configuration touch screen controller TPC is configured to be in communication connection with the temperature sensor to acquire the indoor temperature of the energy storage container, display and transmit the indoor temperature to the programmable logic controller PLC,
the energy storage control management system is configured to:
when the indoor temperature is higher than a preset indoor temperature upper limit, the PLC sends a refrigeration starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to refrigerate after receiving the refrigeration starting signal;
and when the indoor temperature is lower than a preset indoor temperature lower limit, the programmable logic controller PLC sends a heating starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to heat after receiving the heating starting signal.
16. The energy storage control management system according to claim 15, further comprising a humidity sensor for sensing humidity within the container,
the industrial control configuration touch screen controller TPC is configured to be in communication connection with the humidity sensor to acquire the indoor humidity of the energy storage container, display and transmit the indoor humidity to the programmable logic controller PLC,
the energy storage control management system is configured in such a way that when the indoor humidity is larger than a preset upper limit of the indoor humidity, the programmable logic controller PLC sends a dehumidification starting signal to the industrial control configuration touch screen controller TPC, and the industrial control configuration touch screen controller TPC controls the air conditioning system to dehumidify after receiving the dehumidification starting signal.
17. The energy storage control management system according to any one of claims 1 to 16, wherein the industrial control configuration touch screen controller TPC is communicatively connected to the electric energy management system EMS through a Modbus communication channel.
18. The energy storage control management system according to claim 17,
the industrial control configuration touch screen controller TPC is configured to acquire dangerous case information through a 485 collector and a Modbus communication channel, display and transmit the dangerous case information to the programmable logic controller PLC,
the programmable logic controller PLC is configured to control the battery management system BMS to switch off the energy storage battery, control the energy storage converter PCS to switch off and disconnect the energy storage battery from the power grid through the industrial control configuration touch screen controller TPC when the dangerous case information reaches an alarm threshold value,
wherein the hazardous condition information is derived from one or more of sensed data of a fire sensor of the energy storage container, sensed data of a flooding sensor of the energy storage container, and weather data of a weather station.
19. The energy storage control management system according to any of claims 1-16, wherein the industrial control configuration touch screen controller TPC is configured to obtain and display one or more of the following data:
the monitoring system comprises internal equipment data of the battery management system BMS, alarm information of the battery management system BMS, internal equipment voltage and/or current data of the energy storage converter PCS and the alarm information of the energy storage converter PCS.
20. The energy storage control management system according to any one of claims 1 to 16, wherein the industrial control configuration touch screen controller TPC is configured to obtain the power consumption of the energy storage control management system from an auxiliary power meter through a 485 collector and a Modbus communication channel.
21. The energy storage control management system according to any one of claims 1-16, characterized in that the programmable logic controller, PLC, is connected to one or more of the following devices through relays:
the door switch, the opening and closing of the energy storage container, the alarm device and the lighting system.
22. Energy storage container, comprising an energy storage battery and an energy storage control management system according to any of claims 1-21, wherein the battery management system BMS and the energy storage converter PCS are coupled to the energy storage battery.
CN202111624658.6A 2021-12-28 2021-12-28 Energy storage control management system for energy storage container and energy storage container Pending CN114400690A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115579923A (en) * 2022-10-18 2023-01-06 国网上海能源互联网研究院有限公司 Energy storage optimization operation method and device for multiple scenes and multiple targets
CN117032066A (en) * 2023-10-09 2023-11-10 成都特隆美储能技术有限公司 PLC control method of mobile energy storage system
CN117154799A (en) * 2023-10-30 2023-12-01 深圳和润达科技有限公司 Remote monitoring method and device for energy storage inversion equipment and computer storage medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115579923A (en) * 2022-10-18 2023-01-06 国网上海能源互联网研究院有限公司 Energy storage optimization operation method and device for multiple scenes and multiple targets
CN115579923B (en) * 2022-10-18 2024-02-23 国网上海能源互联网研究院有限公司 Energy storage optimization operation method and device for multiple scenes and multiple targets
CN117032066A (en) * 2023-10-09 2023-11-10 成都特隆美储能技术有限公司 PLC control method of mobile energy storage system
CN117154799A (en) * 2023-10-30 2023-12-01 深圳和润达科技有限公司 Remote monitoring method and device for energy storage inversion equipment and computer storage medium
CN117154799B (en) * 2023-10-30 2024-02-02 深圳和润达科技有限公司 Remote monitoring method and device for energy storage inversion equipment and computer storage medium

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