CN113871666B - Energy management system for vanadium battery - Google Patents
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- CN113871666B CN113871666B CN202111105281.3A CN202111105281A CN113871666B CN 113871666 B CN113871666 B CN 113871666B CN 202111105281 A CN202111105281 A CN 202111105281A CN 113871666 B CN113871666 B CN 113871666B
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- H01—ELECTRIC ELEMENTS
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
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- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
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- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
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Abstract
The invention provides an energy management system for a vanadium redox battery, which is in communication connection with a BMS system and a PCS system of the vanadium redox battery; the energy management system is realized by adopting upper machine configuration software and comprises a PCS operation interface and a BMS operation interface; the PCS operation interface comprises a PCS control setting interface, a PCS fault alarm interface, a PCS module information interface and a vanadium battery information interface; the BMS operation interface comprises a BMS control setting interface, a BMS fault alarm interface and a BMS module information interface. The energy management system can intervene and control a PCS system and a BMS system, and can realize energy management on vanadium batteries with different types and test conditions.
Description
Technical Field
The invention relates to the technical field of energy management of vanadium batteries, in particular to an energy management system for a vanadium battery.
Background
The vanadium battery is used as energy storage equipment with huge potential in new energy industry, the complete set of products comprises a Battery Management System (BMS), a charge-discharge system (PCS), an Energy Management System (EMS) and the like, after the process inspection of the galvanic pile is completed, the charge-discharge performance test is required, and the vanadium battery can leave a factory after reaching relevant standards or specifications. In the prior energy management system, special development is not carried out for specific models and test conditions, so that the energy management of the vanadium redox battery is not specific enough.
Disclosure of Invention
The invention aims to provide an energy management system for a vanadium redox battery, so as to solve the existing technical problems.
The invention provides an energy management system for a vanadium redox battery, which is in communication connection with a BMS system and a PCS system of the vanadium redox battery;
the energy management system is realized by adopting upper machine configuration software and comprises a PCS operation interface and a BMS operation interface;
the PCS operating interface comprises:
the PCS control setting interface is used for controlling the PCS system;
the PCS fault alarm interface is used for displaying fault alarm information of the PCS system in real time;
the PCS module information interface is used for displaying various parameters of the PCS system in real time;
the vanadium battery information interface is used for displaying various parameters of the vanadium battery pile in real time;
the BMS operation interface comprises:
the BMS control setting interface is used for controlling the BMS system;
the BMS fault alarm interface is used for displaying fault alarm information of the BMS in real time;
and the BMS module information interface is used for displaying various parameters of the BMS system in real time.
Furthermore, the PCS operation interface and the BMS operation interface respectively comprise a plurality of configuration modules which are realized by adopting a configuration method, and the configuration modules are used for realizing the sending of operation instructions to the BMS system and the PCS system and the visual display of various collected parameters and information of the BMS system and the PCS system.
Further, the configuration module in the PCS control setting interface includes:
the PCS system control module is used for controlling the PCS system by sending an operating instruction to the PCS system;
the PCS system running state monitoring module is used for displaying the working state of the PCS system;
and the PCS system parameter setting module is used for setting various system parameters of the PCS system by sending an operating instruction to the PCS system.
Further, the configuration module in the PCS fault alarm interface includes:
the PCS system fault alarm module is used for displaying fault alarm information of the PCS system in real time by comparing various parameters of the PCS system with corresponding fault alarm threshold values; and the fault alarm threshold value is set through a PCS system parameter setting module.
Further, the control process for controlling the PCS system to carry out the charging and discharging processes of the vanadium redox battery through the PCS operation interface comprises the following steps:
selecting a charge-discharge mode of the vanadium battery as a constant power mode or a constant current mode through a PCS system control module;
aiming at the selected charge-discharge mode of the vanadium redox battery, sequentially setting (1) charge-discharge power, total charge-discharge current and maximum allowable current of the vanadium redox battery through a PCS (Power conversion System) parameter setting module; (2) charging parameters and discharging parameters;
the PCS system control module controls the PCS system to charge or discharge the vanadium battery, and the PCS system running state monitoring module acquires battery voltage and PCS power when the vanadium battery is charged or discharged;
and comparing the battery voltage, the PCS power or the PCS current and the corresponding battery voltage threshold value and PCS power threshold value or PCS current threshold value when the vanadium battery is charged or discharged through a PCS system control module, and finishing the charging or discharging control of the vanadium battery when the corresponding battery voltage threshold value and PCS power threshold value or PCS current threshold value are reached.
Further, the configuration module in the BMS control setting interface includes:
the BMS control module is used for controlling the BMS by sending an operation instruction to the BMS;
the BMS system running state monitoring module is used for displaying the working state of the BMS system;
and the BMS system parameter setting module is used for setting all system parameters of the BMS system by sending an operation instruction to the BMS system.
Further, the configuration module in the BMS fault alarm interface includes:
the BMS fault alarm module is used for displaying fault alarm information of the BMS in real time by comparing various parameters of the BMS with corresponding fault alarm thresholds; and the fault alarm threshold value is set through a BMS system parameter setting module.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the energy management system can intervene and control the PCS system and the BMS system, can track and record various data of the vanadium battery in the using process, and further realizes parameter setting in an operation interface of the upper computer configuration software when the vanadium battery is in different types, thereby realizing energy management of the vanadium battery in different types and under different testing conditions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and it is obvious for those skilled in the art that other related drawings can be obtained according to these drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an energy management system for a vanadium redox battery according to an embodiment of the present invention.
Fig. 2 is a flowchart of the energy management system for vanadium redox batteries for controlling charging and discharging of 10KW vanadium redox batteries according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1, the present embodiment provides an energy management system for a vanadium redox battery, which is in communication connection with a BMS system and a PCS system of the vanadium redox battery, and generally adopts an RS485 communication manner, so that the energy management system exchanges data with the BMS system and the PCS system of the vanadium redox battery.
The energy management system is realized by adopting upper machine configuration software and comprises a PCS operation interface and a BMS operation interface; the commonly used upper computer configuration software can be Kunlun Tongtai (MCGS) upper computer configuration software. The configuration modules are used for sending operation instructions to the BMS system and the PCS system and carrying out visual display on various collected parameters and information of the BMS system and the PCS system. Specifically, the method comprises the following steps:
the PCS operation interface comprises:
and the PCS control setting interface is used for controlling the PCS system, such as controlling the start-up, the shutdown, the charging and discharging operations, the charging and discharging mode selection operation and the like of the vanadium redox battery by sending a control command to the PCS system. The configuration module in the PCS control setting interface comprises: the PCS system control module is used for controlling the PCS system by sending an operating instruction to the PCS system; the PCS system running state monitoring module is used for displaying the working state of the PCS system; and the PCS system parameter setting module is used for setting various system parameters of the PCS system by sending an operating instruction to the PCS system.
And the PCS fault alarm interface is used for displaying fault alarm information of the PCS system in real time, processing abnormal states in time and ensuring that the charging and discharging process of the vanadium battery is smoothly carried out. Therefore, the configuration module in the PCS fault alarm interface comprises: the PCS system fault alarm module is used for displaying fault alarm information of the PCS system in real time by comparing various parameters of the PCS system with corresponding fault alarm threshold values; and the fault alarm threshold value is set through a PCS system parameter setting module.
And the PCS module information interface is used for displaying various parameters of the PCS system in real time, such as the running state, the working mode, the battery voltage, the current and other important parameters of the PCS system.
And the vanadium battery information interface is used for displaying various parameters of the vanadium battery pile in real time, such as the running state, the charging and discharging mode, the forward and reverse electric energy and other data of the vanadium battery.
The BMS operation interface comprises:
the BMS control setting interface is used for controlling the BMS system; the BMS system mainly comprises an electric pile, an electrolyte tank, a positive and negative alternating current (or direct current) pump, a control cabinet and other equipment, and the electric pile, the electrolyte tank, the positive and negative alternating current (or direct current) pump, the control cabinet and other equipment are controlled by sending control instructions to the BMS system. Therefore, the configuration module in the BMS control setting interface comprises: the BMS control module is used for controlling the BMS by sending an operation instruction to the BMS; the BMS system running state monitoring module is used for displaying the working state of the BMS system; and the BMS system parameter setting module is used for setting all system parameters of the BMS system by sending an operation instruction to the BMS system.
BMS fault alarm interface for show the fault alarm information of BMS system in real time, be arranged in if the BMS system in pressure, temperature, flow parameter abnormal when carrying out fault alarm information and show, still can further realize fault alarm and shut down, the parameter that this fault alarm information shows and the parameter that fault alarm shut down can set up through BMS control setting interface. Whereby configuration modules in the BMS malfunction alert interface include: the BMS fault alarm module is used for displaying fault alarm information of the BMS in real time by comparing various parameters of the BMS with corresponding fault alarm thresholds; and the fault alarm threshold value is set through a BMS system parameter setting module.
And the BMS module information interface is used for displaying various parameters of the BMS system in real time, such as the running states of the electric pile, the electrolyte tank, the anode and cathode alternating current (or direct current) pump, the control cabinet and the like, and displaying the pressure, temperature and flow parameters in the BMS system in real time.
As shown in fig. 2, the present invention is illustrated by using each configuration module in the PCS control setting interface to perform charge and discharge control on a 10KW vanadium redox battery:
the control process for controlling the PCS system to carry out the charging and discharging processes of the vanadium redox battery through the PCS operation interface comprises the following steps:
A. selecting a charge-discharge mode of the vanadium battery as a constant power mode or a constant current mode through a PCS system control module;
B. aiming at the selected charge-discharge mode of the vanadium redox battery, sequentially setting (1) charge-discharge power, total charge-discharge current and maximum allowable current of the vanadium redox battery through a PCS (Power conversion System) parameter setting module; (2) charging parameters and discharging parameters;
when the selected charge-discharge mode of the vanadium redox battery is a constant power mode, setting the parameters of the vanadium redox battery:
(1) Charge-discharge power, total charge-discharge current, maximum allowable current;
(2) Charging parameters: the battery is uniformly charged and floated;
(3) Discharge parameters: a discharge voltage;
when the selected charge-discharge mode of the vanadium redox battery is a constant current mode, setting the parameters of the vanadium redox battery:
(1) Charge-discharge power, total charge-discharge current, maximum allowable current;
(2) Charging parameters: the battery is uniformly charged and floated;
(3) Discharge parameters: a discharge voltage;
C. the PCS system control module controls the PCS system to charge or discharge the vanadium battery, and the PCS system running state monitoring module acquires the battery voltage and PCS power when the vanadium battery is charged or discharged;
D. comparing the battery voltage, the PCS power or the PCS current when the vanadium battery is charged or discharged with the corresponding battery voltage threshold value and the PCS power threshold value or the PCS current threshold value through a PCS system control module, and finishing the charging or discharging control of the vanadium battery when the corresponding battery voltage threshold value and the PCS power threshold value or the PCS current threshold value are reached;
when the selected charge-discharge mode of the vanadium redox battery is a constant power mode:
(1) If the PCS system control module controls the PCS system to charge the vanadium redox battery, the battery voltage acquires whether the battery voltage for charging the vanadium redox battery reaches a first battery voltage threshold (determined according to the battery uniform charging voltage and the battery floating charging voltage set in the constant power mode) and whether the PCS power reaches the PCS power threshold through the PCS system running state monitoring module; when the voltage reaches the preset voltage, the PCS system is controlled by the PCS system control module to enable the vanadium battery to finish charging;
(2) If the PCS system control module controls the PCS system to discharge the vanadium battery, the battery voltage acquires whether the battery voltage for discharging the vanadium battery reaches a second battery voltage threshold (determined according to the discharge voltage set in the constant power mode) and whether the PCS power reaches the PCS power threshold through the PCS system running state monitoring module; when the discharge is reached, the PCS system is controlled by the PCS system control module to enable the vanadium battery to finish discharging;
when the selected charge-discharge mode of the vanadium redox battery is a constant current mode:
(1) If the PCS system control module controls the PCS system to charge the vanadium redox battery, the battery voltage acquires whether the battery voltage for charging the vanadium redox battery reaches a third battery voltage threshold (determined according to the battery uniform charging voltage and the battery floating charging voltage set in the constant current mode) and whether the PCS current reaches the PCS current threshold through the PCS system running state monitoring module; when the voltage reaches the preset value, the PCS system is controlled by the PCS system control module to enable the vanadium battery to finish charging;
(2) If the PCS system control module controls the PCS system to discharge the vanadium redox battery, the battery voltage acquires whether the battery voltage for discharging the vanadium redox battery reaches a fourth battery voltage threshold (determined according to the discharge voltage set in the constant-current mode) and whether the PCS power reaches a PCS current threshold through the PCS system running state monitoring module; and when the discharge is reached, controlling the PCS system to enable the vanadium battery to finish discharging through the PCS system control module.
Therefore, the energy management system can intervene and control a PCS system and a BMS system, can track and record various data of the vanadium battery in the using process, and further realizes parameter setting in an operation interface of the upper computer configuration software when the vanadium battery is in different models, thereby realizing energy management of the vanadium battery in different models and test conditions.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The energy management system for the vanadium redox battery is characterized by being in communication connection with a BMS system and a PCS system of the vanadium redox battery;
the energy management system is realized by adopting upper machine configuration software and comprises a PCS operation interface and a BMS operation interface;
the PCS operation interface comprises:
the PCS control setting interface is used for controlling the PCS system;
the PCS fault alarm interface is used for displaying fault alarm information of the PCS system in real time;
the PCS module information interface is used for displaying various parameters of the PCS system in real time;
the vanadium battery information interface is used for displaying various parameters of the vanadium battery pile in real time;
the BMS operation interface includes:
the BMS control setting interface is used for controlling the BMS system;
the BMS fault alarm interface is used for displaying fault alarm information of the BMS system in real time;
the BMS module information interface is used for displaying various parameters of the BMS system in real time;
the configuration modules are used for sending operation instructions to the BMS system and the PCS system and carrying out visual display on various collected parameters and information of the BMS system and the PCS system;
the control process for controlling the PCS system to carry out the charging and discharging processes of the vanadium redox battery through the PCS operation interface comprises the following steps:
selecting a charge-discharge mode of the vanadium battery as a constant power mode or a constant current mode through a PCS system control module;
aiming at the selected charge-discharge mode of the vanadium redox battery, sequentially setting (1) charge-discharge power, total charge-discharge current and maximum allowable current of the vanadium redox battery through a PCS (Power conversion System) parameter setting module; (2) charging parameters and discharging parameters;
when the selected charge-discharge mode of the vanadium redox battery is a constant power mode, setting the parameters of the vanadium redox battery:
(1) Charge-discharge power, total charge-discharge current, maximum allowable current;
(2) Charging parameters: the battery is uniformly charged and floated;
(3) Discharge parameters: a discharge voltage;
when the selected charge-discharge mode of the vanadium redox battery is a constant current mode, setting the parameters of the vanadium redox battery:
(1) Charge-discharge power, total charge-discharge current, maximum allowable current;
(2) Charging parameters: the battery is uniformly charged and floated;
(3) Discharge parameters: a discharge voltage;
the PCS system control module controls the PCS system to charge or discharge the vanadium battery, and the PCS system running state monitoring module acquires battery voltage and PCS power when the vanadium battery is charged or discharged;
the method comprises the following steps that a PCS system control module compares battery voltage and PCS power of a vanadium battery during charging or discharging with corresponding battery voltage threshold values and PCS power threshold values, or compares battery voltage and PCS current of the vanadium battery during charging or discharging with corresponding battery voltage threshold values and PCS current threshold values, and when the battery voltage threshold values and the PCS power threshold values are reached or the battery voltage threshold values and the PCS current threshold values are reached, charging or discharging control of the vanadium battery is completed;
when the selected charge-discharge mode of the vanadium redox battery is a constant power mode:
(1) If the PCS system control module controls the PCS system to charge the vanadium redox battery, the battery voltage acquires whether the battery voltage for charging the vanadium redox battery reaches a first battery voltage threshold value and whether the PCS power reaches a PCS power threshold value through the PCS system running state monitoring module; when the voltage reaches the preset value, the PCS system is controlled by the PCS system control module to enable the vanadium battery to finish charging; the first battery voltage threshold is determined according to the battery uniform charging voltage and the battery float charging voltage set in the constant power mode
(2) If the PCS system control module controls the PCS system to discharge the vanadium redox battery, the battery voltage acquires whether the battery voltage for discharging the vanadium redox battery reaches a second battery voltage threshold value and whether the PCS power reaches the PCS power threshold value through the PCS system running state monitoring module; when the discharge is reached, the PCS system is controlled by the PCS system control module to enable the vanadium battery to finish discharging; the second battery voltage threshold is determined according to a discharge voltage set in a constant power mode;
when the selected charge-discharge mode of the vanadium redox battery is a constant current mode:
(1) If the PCS system control module controls the PCS system to charge the vanadium redox battery, the battery voltage acquires whether the battery voltage for charging the vanadium redox battery reaches a third battery voltage threshold value and whether the PCS current reaches a PCS current threshold value through the PCS system running state monitoring module; when the voltage reaches the preset value, the PCS system is controlled by the PCS system control module to enable the vanadium battery to finish charging; the third battery voltage threshold is determined according to the battery uniform charging voltage and the battery float charging voltage which are set in the constant current mode;
(2) If the PCS system control module controls the PCS system to discharge the vanadium redox battery, the battery voltage acquires whether the battery voltage discharged by the vanadium redox battery reaches a fourth battery voltage threshold value and whether the PCS current reaches a PCS current threshold value through the PCS system running state monitoring module; when the discharge is reached, the PCS system is controlled by the PCS system control module to enable the vanadium battery to finish discharging; and the fourth battery voltage threshold is determined according to the discharge voltage set in the constant current mode.
2. The energy management system for vanadium redox batteries according to claim 1, wherein the configuration module in the PCS control setting interface comprises:
the PCS system control module is used for controlling the PCS system by sending an operating instruction to the PCS system;
the PCS system running state monitoring module is used for displaying the working state of the PCS system;
and the PCS system parameter setting module is used for setting various system parameters of the PCS system by sending an operating instruction to the PCS system.
3. The energy management system for the vanadium redox battery according to claim 2, wherein the configuration module in the PCS fault alarm interface comprises:
the PCS system fault alarm module is used for displaying fault alarm information of the PCS system in real time by comparing various parameters of the PCS system with corresponding fault alarm threshold values; and the fault alarm threshold value is set through a PCS system parameter setting module.
4. The energy management system for vanadium redox batteries according to claim 1, wherein the configuration module in the BMS control setting interface comprises:
the BMS control module is used for controlling the BMS by sending an operation instruction to the BMS;
the BMS system running state monitoring module is used for displaying the working state of the BMS system;
and the BMS system parameter setting module is used for setting all system parameters of the BMS system by sending an operation instruction to the BMS system.
5. The energy management system for the vanadium redox battery according to claim 4, wherein a configuration module in a BMS fault alarm interface comprises:
the BMS fault alarm module is used for displaying fault alarm information of the BMS in real time by comparing various parameters of the BMS with corresponding fault alarm thresholds; and the fault alarm threshold value is set through a BMS system parameter setting module.
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