Energy storage interval layer monitoring device and modular energy storage station monitoring system

Abstract

The application provides a kind of energy storage interval layer monitoring device and modular energy storage station monitoring system, through the state data acquisition of energy storage unit instrument equipment by several slave control modules, and transmission to master control module for summary, the state data after summary is transmitted to host computer module, then combined with the operation instruction given by user, control signal is generated, and is transmitted to master control module, slave control module is controlled by master control module, finally, the operation of instrument equipment is controlled by slave control module.The master control module and slave control module can control the operation of instrument equipment according to their own control logic, can handle the change condition of conventional energy storage unit, compared with the traditional energy storage monitoring system, the application can process data for each energy storage unit, reduce the data processing amount in host computer module, thereby improve the transmission efficiency of data.Through the operation of user, the control error of energy storage unit is reduced, and the control accuracy of energy storage unit is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new generation information technology industry, and particularly relates to a kind of energy storage interval layer monitoring device and modular energy storage station monitoring system. BACKGROUND

[0002] Energy storage technology has been widely used in renewable energy, distributed energy, smart grid and other fields. Electrochemical energy storage represented by lithium iron phosphate battery has developed rapidly due to its high energy density and power density, high efficiency, rapid technological progress and great development potential. Modular energy storage system usually uses a container or a cabinet as the outer envelope structure, and pre-fabricates energy storage batteries, electrical equipment, cooling systems, fire fighting systems and other equipment into an integrated unit in the factory. It has the advantages of easy installation, small footprint, flexible movement and short construction period. It is widely used at home and abroad and has great development potential in the future.

[0003] The energy storage monitoring system is the brain center of the energy storage power station, which has the functions of information collection, processing, monitoring, control, operation management and other functions. It is an important part of the energy storage system. At present, centralized monitoring system is widely used in energy storage power station. This kind of centralized monitoring system collects data of all energy storage units to the station control layer, and then the station control layer analyzes the collected data, monitors and alarms, protection action, control and adjustment. However, the centralized monitoring system has many shortcomings. First of all, for large-capacity energy storage power station, the energy storage system will generate a large amount of operation data, which will make the limited communication rate, information processing capacity and data storage capacity of the centralized monitoring system even more difficult, greatly reducing the safety, reliability and efficiency of the energy storage system. Secondly, the monitoring and protection of energy storage converter and battery system are generally deployed separately, which has a certain protection blind area in operation. Finally, the larger the capacity and scale of the energy storage system, the higher the cost of software and hardware configuration and installation of the centralized monitoring system, which is not conducive to the flexible expansion and deployment of the energy storage system.

[0004] Therefore, there is an urgent need for an energy storage unit monitoring strategy to solve the problem of low information transmission efficiency of centralized monitoring system. SUMMARY

[0005] The present application provides an energy storage interval layer monitoring device and a modular energy storage station monitoring system to improve the data transmission efficiency of monitoring energy storage units.

[0006] In order to solve the above problems, an embodiment of the present application provides an energy storage interval layer monitoring device and a modular energy storage station monitoring system, which is applied to monitor each energy storage unit, comprising: a slave control module, a master control module and an upper computer module.

[0007] The slave control module is configured to collect state data of the instrument equipment of the energy storage unit, transmit the state data to the master control module, and control the instrument equipment according to a first control logic or a first control signal transmitted by the master control module.

[0008] The master control module is configured to receive the state data transmitted by the slave control modules, generate summary data by summarizing each of the state data, transmit the summary data to the host computer module, generate a first control signal according to a second control logic or a second control signal transmitted by the host computer module, and transmit the first control signal to the slave control modules.

[0009] The host computer module is configured to receive the summary data transmitted by the master control module, generate a second control signal according to a first operation instruction of a user, and transmit the second control signal to the master control module.

[0010] The master control module is connected to the host computer module, and the master control module is connected to the slave control modules.

[0011] As can be seen from the above, the present application has the following beneficial effects:

[0012] The present application provides an energy storage interval layer monitoring device, which collects state data of instrument equipment of an energy storage unit through a plurality of slave control modules, transmits the state data to a master control module for summarization, transmits the summarized state data to a host computer module, generates a control signal in combination with an operation instruction given by a user, transmits the control signal to the master control module, controls the slave control modules by the master control module, and finally controls the instrument equipment of the energy storage unit by the slave control modules. The master control module and the slave control modules can control the operation of the instrument equipment according to their own control logics, can process the change conditions of the conventional energy storage unit, can process the data of each energy storage unit compared with the traditional energy storage monitoring system, thereby reducing the data processing amount in the host computer module and improving the data transmission efficiency. By combining the operation of the user, the control error of the energy storage unit is reduced, and the control accuracy of the energy storage unit is improved.

[0013] As an improvement of the above-mentioned scheme, the present application further comprises a recording module configured to collect data of the master control module, the host computer module, the slave control modules and the instrument equipment to obtain recording data, wherein the recording module is connected to the master control module, and the summary data comprises the recording data.

[0014] The improved scheme of the present embodiment performs recording on the energy storage unit through the recording module, provides data support for fault tracing and fault analysis, and improves the reliability of the energy storage unit.

[0015] As an improvement of the above scheme, the slave control module comprises a main control board and an auxiliary control board.

[0016] The main control board is configured to collect state data of the energy storage device, transmit the state data to the main control module, and control the energy storage device according to a control signal transmitted by the main control module or a control logic built in the main control board; and the instrument device comprises the energy storage device.

[0017] The auxiliary control board is configured to collect state data of the auxiliary device, transmit the state data to the main control module, and control the auxiliary device according to a control signal transmitted by the main control module or a control logic built in the auxiliary control board; and the instrument device comprises the auxiliary device.

[0018] The improved scheme of the embodiment can separately control the energy storage device and the auxiliary device, thereby improving the control accuracy of the energy storage unit.

[0019] As an improvement of the above scheme, the main control module further comprises:

[0020] According to the state data of the plurality of energy storage devices collected by the slave control module, an energy storage device adjustment signal is generated by receiving a second operation instruction or a second control logic of a user, and the energy storage device adjustment signal is transmitted to the slave control module, so that the slave control module performs protection operation and control operation on the plurality of energy storage devices according to the energy storage device adjustment signal; and the energy storage device comprises a battery system and an energy storage converter.

[0021] The improved scheme of the embodiment generates an energy storage device adjustment signal through the control logic of the main control module or the operation instruction of the user to the main control module, and enables the slave control module to simultaneously control and protect the energy storage converter and the battery system according to the adjustment signal, comprehensively considers the protection control logic, avoids the protection blind area, simplifies the hardware deployment structure, improves the data transmission efficiency, and thereby improves the reliability of the energy storage unit.

[0022] As an improvement of the above scheme, the expert system module is further included; and the expert system module is connected with the main control module, the upper computer module, and the plurality of slave control modules.

[0023] The control method of the expert system module comprises:

[0024] The state data collected by the plurality of slave control modules is received, correction data is calculated according to the plurality of state data, and the correction data is transmitted to the slave control module, so that the slave control module controls the instrument device according to the correction data.

[0025] The operation and maintenance assistance suggestion is analyzed according to the state data, and the operation and maintenance assistance suggestion is transmitted to the upper computer module.

[0026] The improved scheme of the embodiment is implemented, on the basis of controlling the instrument device by the control module through the built-in control logic, the expert system module can calculate the correction data according to the state data, so as to help the control module to further control the instrument device according to the correction data, which is helpful to reduce the error of the control module to control the instrument device and improve the control precision; at the same time, the operation and maintenance auxiliary suggestion obtained by analyzing the state data of the instrument device is transmitted to the host computer module, which is helpful to guide the user to better control the instrument device.

[0027] As an improvement of the above scheme, the control method of the host computer module comprises:

[0028] According to the summary data transmitted by the main control module, the state data of the instrument device is extracted, the state data of the instrument device is identified, the second control signal is transmitted to the main control module by receiving the operation of the user; wherein the state data of the instrument device includes: the state data of the battery, the state data of the energy storage converter, the state data of the AC circuit breaker, the state data of the relay, the state data of the cooling system and the state data of the fire extinguishing system;

[0029] According to the summary data transmitted by the main control module, the recording data is obtained, the recording data is identified, and the alarm operation and positioning operation are performed according to the abnormal result obtained by identification; wherein the recording data includes: the abnormal data of the main control module, the abnormal data of the slave control module, and the position data and abnormal data of the instrument device.

[0030] The improved scheme of the embodiment is implemented, the man-machine interaction function of the user and the monitoring device is realized through the host computer module, so that on the basis of automatic control, the user can judge the automatic control situation, so as to facilitate the adjustment when the control error occurs.

[0031] As an improvement of the above scheme, the control method of the host computer module further comprises: the control method of the host computer module further comprises: after receiving the state data and the operation and maintenance auxiliary suggestion, the state data and the operation and maintenance auxiliary suggestion are displayed on the screen, so that the user can issue operation instruction according to the state data and the operation and maintenance auxiliary suggestion.

[0032] The improved scheme of the embodiment is implemented, by displaying the state data on the screen of the host computer, so that the staff can obtain the information of the instrument device in real time, thereby facilitating the staff to monitor and control the energy storage unit.

[0033] Correspondingly, the embodiment of the present application also provides a modular energy storage station monitoring system applied to monitoring a plurality of energy storage units, comprising: a cloud platform, an energy storage station control layer monitoring device, an energy storage interval layer monitoring device as described in the present application, an expert system device, and instrument equipment of the energy storage unit; wherein the energy storage station control layer monitoring device is connected with a plurality of energy storage interval layer monitoring devices, the energy storage station control layer monitoring device is connected with the cloud platform, the expert system device is connected with a plurality of energy storage interval layer monitoring devices, and each energy storage interval layer monitoring device is connected with the instrument equipment of each energy storage unit.

[0034] The improved scheme of the embodiment is implemented, and through the modular energy storage station monitoring system, data hierarchical storage, computing power hierarchical decentralization, and service hierarchical deployment are realized, so that the real-time performance and accuracy of data acquisition are ensured, the data processing capacity and data storage capacity are improved, the structure of the modular energy storage station monitoring system is optimized, the operation efficiency of the energy storage station is improved, and the safety and reliability of the energy storage station are ensured.

[0035] As an improvement of the above scheme, the control method of the energy storage station control layer monitoring device specifically comprises:

[0036] receiving generated data of a plurality of energy storage interval layer monitoring devices, and respectively controlling a plurality of energy storage interval layer monitoring devices according to operation instructions of workers or a third control logic;

[0037] uploading data collected by a plurality of energy storage interval layer monitoring devices to the cloud platform for storage and analysis. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a structural schematic diagram of an energy storage interval layer monitoring device provided by the embodiment of the present application;

[0039] Figure 2 is a structural schematic diagram of a modular energy storage station monitoring system provided by the embodiment of the present application;

[0040] Figure 3 is a structural schematic diagram of a modular energy storage station monitoring system provided by another embodiment of the present application. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] Embodiment one

[0043] Referring to Figure 1 , Figure 1 is a structural schematic diagram of an energy storage interval layer monitoring device provided by an embodiment of the present application, as shown in the figure, comprising a slave control module 101, a master control module 102 and an upper computer module 103. Figure 1

[0044] The slave control module 101 is configured to collect state data of instrument equipment of an energy storage unit, transmit the state data to the master control module 102, and control the instrument equipment according to a first control logic or a first control signal transmitted by the master control module 102.

[0045] The master control module 102 is configured to receive state data transmitted by a plurality of slave control modules 101 respectively, aggregate each of the state data to generate aggregated data, transmit the aggregated data to the upper computer module 103, and generate a first control signal according to a second control logic or a second control signal transmitted by the upper computer module 103, and transmit the first control signal to the slave control module 101.

[0046] The upper computer module 103 is configured to receive the aggregated data transmitted by the master control module 102, and generate a second control signal according to a first operation instruction of a user, and transmit the second control signal to the master control module 102.

[0047] The master control module 102 is connected with the upper computer module 103, and the master control module 102 is connected with a plurality of slave control modules 101.

[0048] In the embodiment, a recording module 104 is further included, configured to collect data of the master control module 102, the upper computer module 103, the slave control module 101 and the instrument equipment, and obtain recording data; wherein the recording module 104 is connected with the master control module 102, and the aggregated data comprises the recording data.

[0049] As an improvement of the above-mentioned scheme, the recording module performs subtle, millisecond and second-level recording on the master control module, the upper computer module, the slave control module and the instrument equipment of the energy storage unit, and provides data support for fault tracing and analysis through the recorded data.

[0050] In the embodiment, the slave control module 101 comprises a master control board and an auxiliary control board.

[0051] The master control board is configured to collect state data of an energy storage device, and transmit the state data to the master control module 102, and control the energy storage device according to a control signal transmitted by the master control module 102 or a control logic built-in in the master control board; wherein the instrument equipment comprises the energy storage device.​

[0052] The auxiliary control board is configured to collect state data of the auxiliary equipment, transmit the state data to the main control module 102, and control the auxiliary equipment according to a control signal transmitted by the main control module 102 or a control logic built in the auxiliary control board. The instrument equipment includes the auxiliary equipment.

[0053] As an improvement of the above scheme, the main control board is responsible for monitoring, protecting and controlling the DC / DC converter, the energy storage converter and the battery system, and the auxiliary control board is responsible for precise control of the cooling system, the fire extinguishing system and other intelligent terminal devices in the energy storage unit. The main control board and the auxiliary control board collect data of the DC / DC converter, the energy storage converter and the battery system through sensors and meters, such as temperature sensors, smoke detectors, flow monitoring meters and ammeters.

[0054] As an improvement of the above scheme, the slave control module has a certain data processing capability, can collect, analyze and calculate the state of the instrument equipment of the energy storage unit in the range of the slave control module, and can perform some simple control according to the control logic (first control logic) set in advance according to the calculation capability of the slave control module. The control logic is set according to the actual composition of the energy storage unit.

[0055] In this embodiment, the main control module 102 further comprises:

[0056] According to the state data of the energy storage equipment collected by the slave control module 101, the second operation instruction or the second control logic of the user is received to generate an energy storage equipment adjustment signal, and the energy storage equipment adjustment signal is transmitted to the slave control module 101, so that the slave control module 101 performs protection operation and control operation on the energy storage equipment according to the energy storage equipment adjustment signal. The energy storage equipment includes a battery system and an energy storage converter.

[0057] In this embodiment, the main control module is specifically configured to collect data of the battery system and the energy storage converter by summarizing, storing and uploading the data collected by the slave control module, and can perform protection and control on the battery system and the energy storage converter. The battery system can be controlled according to the collected data of the battery system, and the energy storage converter can be switched on or off and the power transmission can be controlled according to the state data of the energy storage converter. The protection control logic of the energy storage converter and the battery system is designed to avoid blind protection area.

[0058] In the embodiment, the expert system module 105 is further included; the expert system module 105 is connected with the master control module 102, the upper computer module 103 and the plurality of slave control modules 101 respectively;

[0059] The control method of the expert system module 105 comprises:

[0060] The state data collected by the plurality of slave control modules 101 is received, the correction data is calculated according to the plurality of state data, and the correction data is transmitted to the slave control module 101, so that the slave control module 101 controls the instrument equipment according to the correction data;

[0061] The operation and maintenance assistance suggestion is obtained according to the state data, and the operation and maintenance assistance suggestion is transmitted to the upper computer module 103.

[0062] As an improvement of the above-mentioned scheme, the expert system module is responsible for data analysis, and has better data processing ability than the slave control module and the master control module, so that when the state data transmitted by the slave control module is obtained, the analysis result with higher accuracy can be obtained according to the state data, and the expert system module sends the obtained analysis result to the slave control module, so that the slave control module can adjust the control of the instrument equipment;

[0063] The expert system module also generates the operation and maintenance assistance suggestion according to the collected data, and provides the operation and maintenance assistance suggestion for the user to refer to; in order to better illustrate the operation and maintenance assistance suggestion, please refer to the following example: the expert system module identifies the state data of the battery, and when the state data (current, voltage and temperature) of the battery is different from the threshold value of the battery, the closing or starting suggestion of the battery related relay is provided, so as to help the user to select, reduce or increase the operation of the battery, and realize the protection of the battery and the control of the relay.

[0064] In the embodiment, the control method of the upper computer module 103 comprises:

[0065] The state data of the instrument equipment is extracted according to the summary data transmitted by the master control module 102, the state data of the instrument equipment is identified, and the second control signal is transmitted to the master control module 102 by receiving the operation of the user; wherein the state data of the instrument equipment comprises the state data of the battery, the state data of the energy storage converter, the state data of the alternating current circuit breaker, the state data of the relay, the state data of the cooling system and the state data of the fire extinguishing system;

[0066] According to the summary data transmitted by the main control module 102, the recording data is obtained and identified, and the alarm operation and positioning operation are performed according to the abnormal result obtained by identification; wherein the recording data includes: the abnormal data of the main control module 102, the abnormal data of the slave control module 101, and the position data and abnormal data of the instrument equipment.

[0067] In the embodiment, the control method of the host computer module 103 further includes: after receiving the state data and the operation and maintenance assistance suggestion, displaying the state data and the operation and maintenance assistance suggestion on the screen to enable the user to issue an operation instruction according to the state data and the operation and maintenance assistance suggestion.

[0068] In the embodiment, the energy storage interval layer monitoring device adopts a master-slave architecture, and realizes data acquisition and control of the energy storage unit through one main control module, one host computer module, one recording module and a plurality of slave control modules.

[0069] In a specific embodiment, the control method of each instrument equipment is specifically:

[0070] The state data of the instrument equipment includes: the state data of the battery, the state data of the energy storage converter, the state data of the AC circuit breaker, the state data of the relay, the state data of the cooling system and the state data of the fire extinguishing system;

[0071] After the slave control module collects the state data of the energy storage converter, the state data of the energy storage converter is identified, and the start and stop of the energy storage converter are automatically controlled according to the first control logic of the slave control module and the second control logic of the main control module; if the manual control signal of the user to the main control module is identified, the start and stop of the energy storage converter are controlled according to the manual control signal of the user;

[0072] After the slave control module collects the state data of the AC circuit breaker, the state data of the AC circuit breaker is identified, and the opening and closing of the AC circuit breaker are controlled according to the preset control strategy of the station main control module; if the manual control signal of the user to the main control module is identified, the opening and closing state of the AC circuit breaker is controlled according to the manual control signal of the user;

[0073] After the slave control module collects the state data of the cooling system, the slave control module identifies the state data of the cooling system, and when the state data of the cooling system exceeds the preset temperature value range, the control logic built in the slave control module makes the slave control module adjust the running mode of the cooling system; wherein the state data of the cooling system is obtained by the temperature sensor of the cooling system itself;

[0074] After the state data of the fire control system is collected from the slave control module, the slave control module identifies the state data of the fire control system, and when the state data of the fire control system is higher than the preset smoke concentration value, the control logic built in the slave control module enables the slave control module to start the fire control system; wherein the state data of the fire control system is obtained by the smoke detector of the fire control system itself.

[0075] In a specific embodiment, the master control module, the slave control module and the expert system module are connected through networking.

[0076] In the embodiment, the data of the instrument equipment of the energy storage unit is collected by the slave control module, the master control module, the upper computer module and the recording module, and the collected data is analyzed to realize accurate control, so that the embodiment can automatically control a single energy storage unit, reduce the amount of data to be processed, and improve the data transmission efficiency of monitoring the energy storage unit. Through the technical scheme of the embodiment, the user can make decisions assisted by the expert system module, and on the basis of automatic control, the user can manually control in the master control module and the upper computer module, thereby improving the control accuracy of a single energy storage unit. By deploying different algorithms in each energy storage unit and the expert system module in layers, the flexible distribution of computing power and the reasonable allocation of resources are realized, thereby realizing the flexible expansion characteristics of the modularization. The embodiment integrates the control modules of the energy storage converter and the battery system, optimizes the battery management system structure, simplifies the data transmission chain and the software and hardware deployment structure, and improves the safety of the energy storage unit.

[0077] Embodiment two

[0078] Reference Figure 2 , Figure 2 is a structural schematic diagram of a modular energy storage station monitoring system provided by an embodiment of the application, comprising: a cloud platform 201, an energy storage station control layer monitoring device 202, an energy storage interval layer monitoring device 203 as described in the application, an expert system device 204, and instrument equipment 205 of an energy storage unit; wherein the energy storage station control layer monitoring device 202 is connected with a plurality of energy storage interval layer monitoring devices 203, the energy storage station control layer monitoring device 202 is connected with the cloud platform 201, the expert system device 204 is connected with a plurality of energy storage interval layer monitoring devices 203, and each energy storage interval layer monitoring device 203 is connected with each instrument equipment 205 of an energy storage unit;

[0079] In the embodiment, the control method of the energy storage station control layer monitoring device is specifically: receiving generated data of a plurality of energy storage interval layer monitoring devices, and respectively controlling a plurality of energy storage interval layer monitoring devices according to operation instructions of workers or a third control logic.

[0080] The data collected by the energy storage interval layer monitoring devices are uploaded to the cloud platform for storage and analysis.

[0081] In a specific embodiment, the expert system device is connected with the expert system module of each energy storage interval layer device, so as to be connected with the slave control module, the master control module and the upper computer module of each energy storage interval layer device through the expert system module.

[0082] In a specific embodiment, the generated data include telemetry information such as current, voltage and power of the interval equipment, telesignaling information such as breaker position, protection action and alarm of the monitoring device, protection information such as starting signal of the monitoring device, and state and alarm data of sensors, state and alarm data of battery systems, state and alarm data of DC / DC converters, state and alarm data of energy storage converters, state and alarm data of cooling systems, and state and alarm data of fire extinguishing systems, and after invalid data are filtered out, the generated data are obtained.

[0083] In a specific embodiment, the energy storage interval layer monitoring devices are controlled according to operation instructions of the staff, specifically, data and instructions issued by the dispatching layer are received, and the energy storage interval layer monitoring devices are controlled according to the issued data and instructions, so that each energy storage interval layer monitoring device can control the master control module and the slave control module to control the instrument equipment according to the data and instructions of the energy storage supervisory control layer monitoring device; wherein the data and instructions are specifically control strategies, operation modes, controller parameters, daily load prediction curves, daily load measurement curves, regional AGC active power instructions, regional AVC reactive power instructions, planned output curves and other operation control related information.

[0084] As an improvement of the above scheme, the energy storage supervisory control layer monitoring device is designed in an unattended management mode, adopts dual-network dual-computer redundant configuration, realizes monitoring, measurement, control and station-level intelligent alarm and positioning, preventive operation and maintenance and intelligent decision-making, charging and discharging strategy control, capacity control optimization and other advanced application functions of the energy storage power station, and has remote measurement, remote signaling, remote adjustment and remote control and other remote control functions, so as to perform operation and maintenance work of the energy storage station according to the data collected by the energy storage interval layer monitoring device.

[0085] In the embodiment, the modular energy storage station monitoring system transmits data through wired and wireless communication modes, wherein the energy storage supervisory control layer monitoring device uploads data to the cloud platform through a comprehensive data network or a public network, and the cloud platform performs remote control of the energy storage supervisory control layer monitoring device; the instrument equipment of the energy storage unit transmits data to the energy storage interval layer monitoring device through CAN bus or RS485; the energy storage interval layer monitoring device transmits data to the energy storage supervisory control layer monitoring device through IEC104, 61850 or Modbusover TCP open protocols.

[0086] For better illustration of the embodiment, please refer to Figure 3 , Figure 3 The energy storage station control layer monitoring system (i.e. the energy storage station control layer monitoring device proposed in the application) is connected with a plurality of energy storage unit monitoring systems (i.e. the energy storage interval layer monitoring device proposed in the application), the energy storage station control layer monitoring system is connected with a cloud platform, and the expert system (i.e. the expert system device proposed in the application) is connected with a plurality of energy storage unit monitoring systems; wherein, in each energy storage unit monitoring system, a master control part and a plurality of slave control parts are included, the master control part includes a main power control unit (i.e. the master control module proposed in the embodiment), a wave recording system (i.e. the wave recording module proposed in the application), and an upper computer (i.e. the upper computer module proposed in the application), and the slave control part (i.e. the slave control module proposed in the application) includes a main control board and an auxiliary control board, the main control board is connected with a battery system, a DC / DC and a PCS (energy storage converter), and the auxiliary control board is connected with a cooling system and a fire extinguishing system.

[0087] The embodiment realizes data hierarchical storage, computing power hierarchical decentralization and service hierarchical deployment by adopting a multi-layer architecture, thereby ensuring the real-time performance and accuracy of data acquisition; since each energy storage interval layer monitoring device has the ability of independent data processing, the energy storage station control layer monitoring device can perform high-level control according to a small amount of data processed by each energy storage interval layer monitoring device, thereby improving the data processing and storage capacity; meanwhile, the embodiment supports big data mining and advanced service application in the whole life cycle, and such a monitoring system architecture enables modular energy storage to be flexibly applied to a megawatt-level to a hundred-megawatt-level energy storage system, thereby facilitating expansion.

[0088] It should be noted that the device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e. can be located in one place, or can be distributed on a plurality of network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment. In addition, in the device embodiment provided by the application, the connection relationship between the modules indicates that there is a communication connection between them, which can be realized as one or more communication buses or signal lines. Those skilled in the art can understand and implement it without creative labor.

[0089] The above is the preferred embodiment of the application, and it should be noted that for those skilled in the art, without departing from the principles of the application, a number of improvements and refinements can be made, which are also considered within the protection scope of the application.

Claims

1. An energy storage gap layer monitoring device, characterized by, The application is applied to monitor each energy storage unit, comprising a slave control module, a master control module and an upper computer module; The slave control module is used for collecting state data of instrument equipment of the energy storage unit, transmitting the state data to the master control module, and controlling the instrument equipment according to a first control logic or a first control signal transmitted by the master control module; the slave control module comprises a master control board and an auxiliary control board; the master control board is used for collecting state data of the energy storage equipment and transmitting the state data to the master control module, and controlling the energy storage equipment according to a control signal transmitted by the master control module or a control logic built in the master control board; wherein the instrument equipment comprises the energy storage equipment; the auxiliary control board is used for collecting state data of auxiliary equipment and transmitting the state data to the master control module, and controlling the auxiliary equipment according to a control signal transmitted by the master control module or a control logic built in the auxiliary control board; wherein the instrument equipment comprises the auxiliary equipment; The master control module is used for receiving state data transmitted by a plurality of slave control modules, collecting each state data to generate summary data, transmitting the summary data to the upper computer module, and generating a first control signal according to a second control logic or a second control signal transmitted by the upper computer module, and transmitting the first control signal to the slave control module; The upper computer module is used for receiving the summary data transmitted by the master control module, generating a second control signal according to a first operation instruction of a user, and transmitting the second control signal to the master control module; The master control module is connected with the upper computer module, and the master control module is connected with a plurality of slave control modules.

2. The energy storage gap layer monitoring device of claim 1, wherein, Further comprising: A wave recording module is used for collecting data of the master control module, the upper computer module, the slave control module and the instrument equipment to obtain wave recording data; wherein the wave recording module is connected with the master control module, and the summary data comprises wave recording data.

3. The energy storage gap layer monitoring device of claim 2, wherein, The master control module further comprises: According to state data of a plurality of energy storage equipment collected by the slave control module, an energy storage equipment adjustment signal is generated by receiving a second operation instruction of a user or a second control logic, and the energy storage equipment adjustment signal is transmitted to the slave control module, so that the slave control module performs protection operation and control operation on the plurality of energy storage equipment according to the energy storage equipment adjustment signal; wherein the energy storage equipment comprises a battery system and an energy storage converter.

4. The energy storage gap layer monitoring device of claim 2, wherein, Further comprising: An expert system module; wherein the expert system module is connected with the master control module, the upper computer module and a plurality of slave control modules respectively; The control method of the expert system module comprises: Receiving state data collected by a plurality of slave control modules, calculating correction data according to a plurality of state data, and transmitting the correction data to the slave control module, so that the slave control module controls the instrument equipment according to the correction data; According to the state data, an operation and maintenance assistance suggestion is obtained, and the operation and maintenance assistance suggestion is transmitted to the upper computer module.

5. The energy storage gap layer monitoring device of claim 4, wherein, The control method of the upper computer module comprises: According to the summary data transmitted by the main control module, the state data of the instrument equipment is extracted, the state data of the instrument equipment is identified, and a second control signal is transmitted to the main control module by receiving the operation of the user; wherein the state data of the instrument equipment includes: the state data of the battery, the state data of the energy storage converter, the state data of the AC circuit breaker, the state data of the relay, the state data of the cooling system and the state data of the fire extinguishing system; According to the summary data transmitted by the main control module, the recording data is obtained, the recording data is identified, and the abnormal result obtained by identification is used for alarm operation and positioning operation; wherein the recording data includes: the abnormal data of the main control module, the abnormal data of the slave control module, and the position data and abnormal data of the instrument equipment.

6. The energy storage gap layer monitoring apparatus of any of claims 4-5, wherein, The control method of the upper computer module further includes: after receiving the state data and the operation and maintenance assistance suggestion, displaying the state data and the operation and maintenance assistance suggestion on the screen to enable the user to issue an operation instruction according to the state data and the operation and maintenance assistance suggestion.

7. A modular energy storage station monitoring system, characterized by, The application is applied to monitoring a plurality of energy storage units, including: a cloud platform, an energy storage station control layer monitoring device, an energy storage interval layer monitoring device as claimed in any one of claims 1 to 6, an expert system device, and instrument equipment of the energy storage unit; wherein the energy storage station control layer monitoring device is connected with a plurality of energy storage interval layer monitoring devices, the energy storage station control layer monitoring device is connected with the cloud platform, the expert system device is connected with a plurality of energy storage interval layer monitoring devices, and each energy storage interval layer monitoring device is connected with the instrument equipment of each energy storage unit.

8. The modular energy storage station monitoring system of claim 7, wherein, The control method of the energy storage station control layer monitoring device is specifically: Receive the generated data of a plurality of energy storage interval layer monitoring devices, and respectively control a plurality of energy storage interval layer monitoring devices according to the operation instruction of the worker or the third control logic; Upload the data collected by a plurality of energy storage interval layer monitoring devices to the cloud platform for storage and analysis.

Images