Information model of sodium ion energy storage power station

Abstract

The invention provides an information model of a sodium ion energy storage power station, which comprises a sodium ion energy storage power station class, and a sodium ion energy storage system class is gathered in the sodium ion energy storage power station class; the sodium ion energy storage power station class is used for describing various attribute information in the sodium ion energy storage power station, and the various attribute information at least comprises attribute information of a sodium ion energy storage battery, control attribute information of a sodium ion energy storage system, thermal management attribute information of the sodium ion energy storage battery and monitoring attribute information of the sodium ion energy storage system; and the sodium ion energy storage system is used for describing attribute information of the ion energy storage battery. According to the invention, a cell-control-sensing-cooling information model construction mode adaptive to a sodium ion energy storage power station is constructed.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage systems, and in particular to an information model of a sodium ion energy storage power station. Background Art

[0002] In the context of the "dual carbon" era, new power systems are developing steadily. Renewable energy sources such as wind and solar power, which are highly random and volatile, pose a potential threat to the safe and stable operation of the system, and energy storage has become a key technology to solve the problem of renewable energy with its outstanding advantages. Among various forms of energy storage, electrochemical energy storage has the characteristics of simple system and flexible operation mode. It is suitable for distributed energy storage in power systems, and is also suitable for building large-scale electrochemical energy storage power stations to participate in system frequency regulation and peak regulation. Compared with lithium-ion batteries, sodium-ion batteries have outstanding characteristics such as large price advantages, high environmental friendliness, and good safety performance. They are currently the focus of the development of new power system industries at home and abroad.

[0003] The information model is the basis for the research and development of information models and information interaction of sodium-ion energy storage power stations. At present, there is no research on building information models for sodium-ion energy storage power stations in the energy field. Therefore, it is necessary to establish an information model covering the business of sodium-ion energy storage power stations, especially an information model that describes the battery thermal management technology of sodium-ion energy storage power stations. Summary of the invention

[0004] The present invention provides an information model of a sodium ion energy storage power station to construct a new system suitable for the sodium ion energy storage power station.

[0005] According to the present invention, an information model of a sodium ion energy storage power station is provided, including a sodium ion energy storage power station class, wherein the sodium ion energy storage power station class includes a sodium ion energy storage system class;

[0006] The sodium-ion energy storage power station class is used to describe various types of attribute information in the sodium-ion energy storage power station, and the various types of attribute information at least include attribute information of the sodium-ion energy storage battery, control attribute information of the sodium-ion energy storage system, thermal management attribute information of the sodium-ion energy storage battery, and monitoring attribute information of the sodium-ion energy storage system;

[0007] The sodium ion energy storage system class is used to describe the property information of the ion energy storage battery.

[0008] Optionally, the sodium ion energy storage system class inherits from the electrochemical energy storage unit class, and adds attribute information for describing the sodium ion energy storage battery on the basis of the electrochemical energy storage unit class; the electrochemical energy storage unit class inherits from the device class of the core package in the IEC 61970 standard, and is used to describe the attribute information of the electrochemical energy storage battery.

[0009] Optionally, the attribute information of the electrochemical energy storage unit class includes at least mass energy density, volume energy density, unit energy raw material cost, cycle life, average operating voltage, and -20°C capacity retention rate of the electrochemical energy storage battery;

[0010] The attribute information in the sodium ion energy storage system class includes at least sodium carbonate content and sodium hydroxide content.

[0011] Optionally, it also includes a sodium ion energy storage charging class and a sodium ion energy storage discharging class; the sodium ion energy storage charging class and the sodium ion energy storage discharging class are both inherited from the sodium ion energy storage system class;

[0012] The sodium ion energy storage charging class includes attribute information for describing the charging process of the sodium ion energy storage battery, and the sodium ion energy storage discharging class includes attribute information for describing the discharging process of the sodium ion energy storage battery;

[0013] The attribute information of the sodium ion energy storage battery charging process includes at least a charging rate and a state of charge;

[0014] The attribute information of the sodium ion energy storage battery discharge process includes at least a discharge rate and a state of charge.

[0015] Optionally, the sodium ion energy storage power station class also includes at least a battery thermal management class, a controller class, a temperature sensor class, a liquid level sensor class, and a flow manager class;

[0016] The battery thermal management class is used to describe the thermal management property information of the sodium-ion energy storage battery;

[0017] The controller class is used to describe the control property information of the sodium ion energy storage system;

[0018] The temperature sensor class is used to describe the temperature-related attribute information in the sodium ion energy storage system;

[0019] The liquid level sensor class is used to describe the attribute information related to the coolant level in the sodium ion energy storage system;

[0020] The flow manager class is used to describe flow-related attribute information of the sodium ion energy storage system.

[0021] Optionally, the battery thermal management class includes air cooling, liquid cooling, phase change cooling, heat pipe cooling and composite cooling; the thermal management attribute information includes attribute information of the air cooling class, attribute information of the liquid cooling class, attribute information of the phase change cooling class, attribute information of the heat pipe cooling class and attribute information of the composite cooling class;

[0022] The attribute information of air cooling category includes at least: whether auxiliary equipment is used, whether natural convection is used, whether forced convection is used, whether serial ventilation cooling is used, and whether parallel ventilation cooling is used;

[0023] The attribute information of liquid cooling includes at least: whether it is water cooling, whether it is ethylene glycol mixed liquid cooling, whether it is water fluoride solution cooling, whether it is serpentine cooling channel cooling, and whether it is spider web cooling channel cooling;

[0024] The attribute information of phase change cooling includes at least: whether it is a solid-gas phase change, whether it is a liquid-gas phase change, whether it is a solid-solid phase change, and whether it is a solid-liquid phase change;

[0025] The attribute information of the heat pipe cooling class includes at least: whether it is a circular heat pipe, whether it is an oscillating heat pipe, whether it is a loop heat pipe, and whether it is a flat heat pipe;

[0026] The attribute information of the composite cooling class includes at least: whether it is air-liquid cooling, whether it is liquid-phase change cooling, and whether it is air-liquid-phase change cooling.

[0027] Optionally, the controller class is associated with the sodium ion energy storage charging class, the sodium ion energy storage discharging class, the temperature sensor class, the liquid level sensor class and the flow manager class; the controller obtains attribute information of the sodium ion energy storage battery charging process, attribute information of the sodium ion energy storage battery discharging process, and temperature-related attribute information, coolant level-related attribute information, and flow-related attribute information in the sodium ion energy storage system.

[0028] Optionally, a sensor class is also included, which inherits from the temperature sensor class, the liquid level sensor class and the flow manager class, and is used to describe temperature-related attribute information, coolant level-related attribute information and flow-related attribute information in the sodium ion energy storage system.

[0029] Optionally, it also includes a simulation data class and a measurement data class; the simulation data class inherits from the simulation data class of the measurement package in the IEC 61970 standard, and is used to describe the simulation data in the sodium ion energy storage power station; the measurement data class inherits from the measurement data class of the measurement package in the IEC 61970 standard, and is used to describe the measurement data in the sodium ion energy storage power station.

[0030] Optionally, it also includes a monitoring station class, which aggregates the location class of the general package in the IEC 61968 standard and the user measurement point class of the metering package in the IEC 61968 standard, inherits the sensor class, and is associated with the simulation data class and the measurement data class; the monitoring station class is used to describe the general monitoring equipment of the sodium ion energy storage power station, and supports monitoring simulation and measurement data.

[0031] The technical solution of the embodiment of the present invention proposes an information model of a sodium-ion energy storage power station. The information model includes a sodium-ion energy storage power station class to describe various types of attribute information in the sodium-ion energy storage power station, including the attribute information of the sodium-ion energy storage battery, the control attribute information of the sodium-ion energy storage system, the thermal management attribute information of the sodium-ion energy storage battery, and the monitoring attribute information of the sodium-ion energy storage system, so as to provide a "cell-control-sensing-cooling" information model construction mode suitable for the sodium-ion energy storage power station. And because there is no description of the sodium-ion energy storage system class in the existing energy storage power station information model, the sodium-ion energy storage system class is aggregated in the sodium-ion energy storage power station class to describe the attribute information of the ion energy storage battery to support the information model construction of the sodium-ion energy storage battery system.

[0032] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 This is an architecture diagram of an information model of a sodium ion energy storage power station provided according to Embodiment 1 of the present invention;

[0035] Figure 2 A schematic diagram of the architecture of an information model of a sodium-ion energy storage power station provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] Embodiment 1

[0039] Figure 1 The present invention provides an architecture diagram of an information model of a sodium ion energy storage power station. Figure 1 As shown, the system includes a sodium ion energy storage power station class, in which a sodium ion energy storage system class is gathered;

[0040] The sodium-ion energy storage power station class is used to describe various types of attribute information in the sodium-ion energy storage power station, and the various types of attribute information at least include attribute information of the sodium-ion energy storage battery, control attribute information of the sodium-ion energy storage system, thermal management attribute information of the sodium-ion energy storage battery, and monitoring attribute information of the sodium-ion energy storage system;

[0041] The sodium ion energy storage system class is used to describe the property information of the ion energy storage battery.

[0042] The sodium-ion energy storage power station class can be used to describe various types of attribute information in the sodium-ion energy storage power station, including at least the attribute information of the sodium-ion energy storage battery, the control attribute information of the sodium-ion energy storage system, the thermal management attribute information of the sodium-ion energy storage battery, and the monitoring attribute information of the sodium-ion energy storage system, so as to construct a "cell-control-sensing-cooling" information model, that is, including the cell attributes of the sodium-ion energy storage battery, battery thermal management, control of the sodium-ion energy storage system, and status monitoring.

[0043] The technical solution of the embodiment of the present invention proposes an information model of a sodium-ion energy storage power station. The information model includes a sodium-ion energy storage power station class to describe various types of attribute information in the sodium-ion energy storage power station, including the attribute information of the sodium-ion energy storage battery, the control attribute information of the sodium-ion energy storage system, the thermal management attribute information of the sodium-ion energy storage battery, and the monitoring attribute information of the sodium-ion energy storage system, so as to provide a "cell-control-sensing-cooling" information model construction mode suitable for the sodium-ion energy storage power station. And because there is no description of the sodium-ion energy storage system class in the existing energy storage power station information model, the sodium-ion energy storage system class is aggregated in the sodium-ion energy storage power station class to describe the attribute information of the ion energy storage battery to support the information model construction of the sodium-ion energy storage battery system.

[0044] In such Figure 2 In one embodiment shown, the sodium ion energy storage system class inherits from the electrochemical energy storage unit class, and adds attribute information for describing the sodium ion energy storage battery on the basis of the electrochemical energy storage unit class; the electrochemical energy storage unit class inherits from the device class of the core package in the IEC 61970 standard, and is used to describe the attribute information of the electrochemical energy storage battery; the attribute information of the electrochemical energy storage unit class includes at least the mass energy density, volume energy density, unit energy raw material cost, cycle life, average operating voltage, and -20°C capacity retention rate of the electrochemical energy storage battery; the attribute information in the sodium ion energy storage system class includes at least sodium carbonate content and sodium hydroxide content.

[0045] Among them, the IEC 61970 standard is the "Energy Management System Application Programming Interface (EMS-API)" series of international standards developed by the International Electrotechnical Commission, and the electrochemical energy storage unit class is a device class inherited from the core package in the IEC 61970 standard, and adds attribute information related to the electrochemical energy storage unit on the basis of the device class. In this embodiment, the electrochemical energy storage unit class contains attribute information of various types of electrochemical energy storage batteries, for example, including the mass energy density, volume energy density, unit energy raw material cost, cycle life, average operating voltage, and -20°C capacity retention rate of the electrochemical energy storage battery.

[0046] The sodium-ion energy storage system class is based on the electrochemical energy storage unit class and adds attribute information used to describe the sodium-ion energy storage battery to support the construction of the information model of the sodium-ion energy storage battery system.

[0047] In one embodiment, it also includes a sodium ion energy storage charging class and a sodium ion energy storage discharging class; the sodium ion energy storage charging class and the sodium ion energy storage discharging class are both inherited from the sodium ion energy storage system class;

[0048] The sodium ion energy storage charging class includes attribute information for describing the charging process of the sodium ion energy storage battery, and the sodium ion energy storage discharging class includes attribute information for describing the discharging process of the sodium ion energy storage battery;

[0049] The attribute information of the sodium ion energy storage battery charging process includes at least a charging rate and a state of charge;

[0050] The attribute information of the sodium ion energy storage battery discharge process includes at least a discharge rate and a state of charge.

[0051] In one embodiment, the sodium ion energy storage power station class also includes at least a battery thermal management class, a controller class, a temperature sensor class, a liquid level sensor class, and a flow manager class;

[0052] The battery thermal management class is used to describe the thermal management property information of the sodium-ion energy storage battery;

[0053] The controller class is used to describe the control property information of the sodium ion energy storage system;

[0054] The temperature sensor class is used to describe the temperature-related attribute information in the sodium ion energy storage system;

[0055] The liquid level sensor class is used to describe the attribute information related to the coolant level in the sodium ion energy storage system;

[0056] The flow manager class is used to describe flow-related attribute information of the sodium ion energy storage system.

[0057] Among them, the temperature-related attribute information in the sodium ion energy storage system may include the ambient temperature of the energy storage power station, the temperature of the battery cell, the temperature of different locations inside the energy storage battery compartment, the temperature of the cooling system, etc. When the sodium ion energy storage battery is cooled by coolant, the attribute information related to the coolant level in the sodium ion energy storage system may include the coolant level height. The flow-related attribute information of the sodium ion energy storage system may include the cooling medium volume, cooling medium density, cooling medium specific heat capacity and cooling medium flow rate of the energy storage system.

[0058] In one embodiment, the battery thermal management class includes air cooling class, liquid cooling class, phase change cooling class, heat pipe cooling class and composite cooling class; the thermal management attribute information includes attribute information of the air cooling class, attribute information of the liquid cooling class, attribute information of the phase change cooling class, attribute information of the heat pipe cooling class and attribute information of the composite cooling class, which is used to describe the technical characteristics of the battery thermal management technology.

[0059] The attribute information of air cooling category includes at least: whether auxiliary equipment is used, whether natural convection is used, whether forced convection is used, whether serial ventilation cooling is used, and whether parallel ventilation cooling is used;

[0060] The attribute information of liquid cooling includes at least: whether it is water cooling, whether it is ethylene glycol mixed liquid cooling, whether it is water fluoride solution cooling, whether it is serpentine cooling channel cooling, and whether it is spider web cooling channel cooling;

[0061] The attribute information of phase change cooling includes at least: whether it is a solid-gas phase change, whether it is a liquid-gas phase change, whether it is a solid-solid phase change, and whether it is a solid-liquid phase change;

[0062] The attribute information of the heat pipe cooling class includes at least: whether it is a circular heat pipe, whether it is an oscillating heat pipe, whether it is a loop heat pipe, and whether it is a flat heat pipe;

[0063] The attribute information of the composite cooling class includes at least: whether it is air-liquid cooling, whether it is liquid-phase change cooling, and whether it is air-liquid-phase change cooling.

[0064] In one embodiment, the controller class is associated with the sodium ion energy storage charging class, the sodium ion energy storage discharging class, the temperature sensor class, the liquid level sensor class and the flow manager class; the controller obtains attribute information of the sodium ion energy storage battery charging process, attribute information of the sodium ion energy storage battery discharging process, and temperature-related attribute information, coolant level-related attribute information, and flow-related attribute information in the sodium ion energy storage system.

[0065] It should be noted that the controller can obtain the charge and discharge information of the sodium-ion energy storage battery and the temperature, liquid level and flow monitoring information of the sodium-ion electronic energy storage system, and control the sodium-ion energy storage system according to the information obtained. For example, when the sodium-ion battery is charged or discharged to a preset threshold, the sodium-ion battery is controlled to stop charging and discharging; or when the temperature of the sodium-ion energy storage battery exceeds the preset temperature threshold, the battery thermal management system is controlled to increase battery cooling.

[0066] In one embodiment, a sensor class is also included, which inherits from the temperature sensor class, the liquid level sensor class and the flow manager class, and is used to describe temperature-related attribute information, coolant level-related attribute information and flow-related attribute information in the sodium ion energy storage system.

[0067] In one embodiment, it also includes a simulation data class and a measurement data class; the simulation data class inherits from the simulation data class of the measurement package in the IEC61970 standard, and is used to describe the simulation data in the sodium ion energy storage power station; the measurement data class inherits from the measurement data class of the measurement package in the IEC 61970 standard, and is used to describe the measurement data in the sodium ion energy storage power station.

[0068] In one embodiment, a monitoring station class is also included, which aggregates the location class of the general package in the IEC 61968 standard and the user measurement point class of the metering package in the IEC 61968 standard, inherits the sensor class, and is associated with the simulation data class and the measurement data class; the monitoring station class is used to describe the general monitoring equipment of the sodium ion energy storage power station, and supports monitoring simulation and measurement data.

[0069] It should be noted that the monitoring station class can be used to describe the general monitoring equipment of the sodium-ion energy storage power station, including temperature sensors, liquid level sensors, and flow sensors. At the same time, since the monitoring station class is associated with the analog data class and the measurement data class, the monitoring station class can also support the monitoring of the analog data and measurement data of the sodium-ion energy storage battery system.

[0070] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An information model of a sodium ion energy storage power station, characterized in that: It includes sodium ion energy storage power stations, in which sodium ion energy storage systems are gathered; The sodium-ion energy storage power station class is used to describe various types of attribute information in the sodium-ion energy storage power station, and the various types of attribute information at least include attribute information of the sodium-ion energy storage battery, control attribute information of the sodium-ion energy storage system, thermal management attribute information of the sodium-ion energy storage battery, and monitoring attribute information of the sodium-ion energy storage system; The sodium ion energy storage system class is used to describe the property information of the ion energy storage battery.

2. The information model of the sodium ion energy storage power station according to claim 1, characterized in that: The sodium ion energy storage system class inherits from the electrochemical energy storage unit class, and adds attribute information for describing the sodium ion energy storage battery on the basis of the electrochemical energy storage unit class; the electrochemical energy storage unit class inherits from the device class of the core package in the IEC 61970 standard, and is used to describe the attribute information of the electrochemical energy storage battery.

3. The information model of the sodium ion energy storage power station according to claim 2, characterized in that: The attribute information of the electrochemical energy storage unit class includes at least the mass energy density, volume energy density, unit energy raw material cost, cycle life, average operating voltage, and -20°C capacity retention rate of the electrochemical energy storage battery; The attribute information in the sodium ion energy storage system class includes at least sodium carbonate content and sodium hydroxide content.

4. The information model of the sodium ion energy storage power station according to claim 2, characterized in that: It also includes a sodium ion energy storage charging class and a sodium ion energy storage discharging class; both the sodium ion energy storage charging class and the sodium ion energy storage discharging class are inherited from the sodium ion energy storage system class; The sodium ion energy storage charging class includes attribute information for describing the charging process of the sodium ion energy storage battery, and the sodium ion energy storage discharging class includes attribute information for describing the discharging process of the sodium ion energy storage battery; The attribute information of the sodium ion energy storage battery charging process includes at least a charging rate and a state of charge; The attribute information of the sodium ion energy storage battery discharge process includes at least a discharge rate and a state of charge.

5. The information model of the sodium ion energy storage power station according to claim 1, characterized in that: The sodium ion energy storage power station class also includes at least a battery thermal management class, a controller class, a temperature sensor class, a liquid level sensor class, and a flow manager class; The battery thermal management class is used to describe the thermal management property information of the sodium-ion energy storage battery; The controller class is used to describe the control property information of the sodium ion energy storage system; The temperature sensor class is used to describe the temperature-related attribute information in the sodium ion energy storage system; The liquid level sensor class is used to describe the attribute information related to the coolant level in the sodium ion energy storage system; The flow manager class is used to describe flow-related attribute information of the sodium ion energy storage system.

6. The information model of the sodium ion energy storage power station according to claim 5, characterized in that: The battery thermal management category includes air cooling, liquid cooling, phase change cooling, heat pipe cooling and composite cooling; the thermal management attribute information includes attribute information of the air cooling category, attribute information of the liquid cooling category, attribute information of the phase change cooling category, attribute information of the heat pipe cooling category and attribute information of the composite cooling category; The attribute information of air cooling category includes at least: whether auxiliary equipment is used, whether natural convection is used, whether forced convection is used, whether serial ventilation cooling is used, and whether parallel ventilation cooling is used; The attribute information of liquid cooling includes at least: whether it is water cooling, whether it is ethylene glycol mixed liquid cooling, whether it is water fluoride solution cooling, whether it is serpentine cooling channel cooling, and whether it is spider web cooling channel cooling; The attribute information of phase change cooling includes at least: whether it is a solid-gas phase change, whether it is a liquid-gas phase change, whether it is a solid-solid phase change, and whether it is a solid-liquid phase change; The attribute information of the heat pipe cooling class includes at least: whether it is a circular heat pipe, whether it is an oscillating heat pipe, whether it is a loop heat pipe, and whether it is a flat heat pipe; The attribute information of the composite cooling class includes at least: whether it is air-liquid cooling, whether it is liquid-phase change cooling, and whether it is air-liquid-phase change cooling.

7. The information model of the sodium ion energy storage power station according to claim 5, characterized in that: The controller class is associated with the sodium ion energy storage charging class, the sodium ion energy storage discharging class, the temperature sensor class, the liquid level sensor class and the flow manager class; the controller obtains attribute information of the sodium ion energy storage battery charging process, attribute information of the sodium ion energy storage battery discharging process, and temperature-related attribute information, coolant level-related attribute information, and flow-related attribute information in the sodium ion energy storage system.

8. The information model of the sodium ion energy storage power station according to claim 5, characterized in that: It also includes a sensor class, which inherits from the temperature sensor class, the liquid level sensor class and the flow manager class, and is used to describe temperature-related attribute information, coolant level-related attribute information and flow-related attribute information in the sodium ion energy storage system.

9. The information model of the sodium ion energy storage power station according to claim 8, characterized in that: It also includes a simulation data class and a measurement data class; the simulation data class inherits the simulation data class of the measurement package in the IEC 61970 standard and is used to describe the simulation data in the sodium ion energy storage power station; The measurement data class inherits from the measurement data class of the measurement package in the IEC 61970 standard and is used to describe the measurement data in the sodium ion energy storage power station.

10. The information model of the sodium ion energy storage power station according to claim 9, characterized in that: It also includes a monitoring station class, which aggregates the location class of the general package in the IEC 61968 standard and the user measurement point class of the metering package in the IEC 61968 standard, inherits the sensor class, and is associated with the simulation data class and the measurement data class; the monitoring station class is used to describe the general monitoring equipment of the sodium ion energy storage power station, and supports monitoring simulation and measurement data.

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