Energy storage control equipment and energy storage control system

Abstract

The utility model discloses an energy storage control device and an energy storage control system.The energy storage control device comprises a system-on-chip, a sampling module, an energy storage module and a communication module, and the system-on-chip is electrically connected with the sampling module, the energy storage module and the communication module. Therefore, the sampling module can be uniformly controlled to collect analog signals and convert the analog signals into digital signals, the energy storage module can be controlled to carry out electric energy conversion and storage, the communication module can be controlled to communicate with the first equipment and / or the second equipment, the functions of collection, control, external communication and the like can be uniformly and centrally realized by using a single chip, the number of chips is greatly reduced, and the cost is reduced. According to the technical scheme, the fault rate is reduced, the reliability and the stability of the equipment are improved, the sampling module comprises N sampling chips, N is determined by the input number of analog signals of the energy storage control equipment, different numbers of sampling chips can be used in different demand scenes, different demand scenes can be matched, and the flexibility is high.

Description

Technical Field

[0001] The present application belongs to the field of energy storage technology, and in particular, relates to an energy storage control device and an energy storage control system. Background Art

[0002] In recent years, with the continuous growth of energy demand and the rapid development of renewable energy, energy storage systems, as an important energy storage and supply solution, have received widespread attention. However, energy storage systems not only need to have efficient energy storage capacity and energy conversion efficiency, but also need to ensure their reliability and stability.

[0003] Traditional energy storage control devices usually use different chips to achieve different functions. Due to the different service lives of different chips, any failure of any of the chips will affect the reliable operation of the energy storage control device, resulting in a high failure rate and poor reliability and stability. In addition, due to the limitation of the number of A / D channels of the chip itself, it is difficult to adapt to different demand scenarios and has poor flexibility.

[0004] Therefore, the problems existing in the prior art are that the reliability, stability and flexibility of the energy storage control device are relatively poor. Summary of the invention

[0005] The embodiments of the present application provide an energy storage control device and an energy storage control system, which solve the problems of poor reliability, stability and flexibility of existing energy storage control devices.

[0006] In a first aspect, an embodiment of the present application provides an energy storage control device, including a system-level chip, a sampling module, an energy storage module and a communication module, wherein the system-level chip is electrically connected to the sampling module, the energy storage module and the communication module respectively; wherein the sampling module includes N sampling chips, N is an integer greater than or equal to 0 and less than or equal to a preset threshold, and N is determined by the number of input analog signals of the energy storage control device;

[0007] The system-level chip is used to control N sampling chips in the sampling module to collect analog signals and convert them into digital signals according to the application scenario;

[0008] System-level chip, used to control the energy storage module to convert and store electrical energy;

[0009] The system-level chip is used to control the communication module to communicate with the first device and / or the second device, wherein the communication protocols of the first device and the second device are different.

[0010] In a possible implementation of the first aspect, the system-level chip includes a first execution core, a second execution core, and a field programmable device, and the field programmable device is electrically connected to the first execution core, the second execution core, the sampling module, the energy storage module, and the communication module respectively;

[0011] A first execution kernel, configured to communicate with a first device;

[0012] The second execution kernel is used to receive the signal collected by the sampling module through the field programmable device, process the signal and generate a control signal when the first execution kernel runs the target operating system, and the control signal is used to control the energy storage module to convert and store electric energy;

[0013] The second execution kernel is further used to control the communication module to communicate with the second device.

[0014] In a possible implementation of the first aspect, the communication module includes a first communication submodule, a second communication submodule and a third communication submodule, and the field programmable device is electrically connected to the first communication submodule, the second communication submodule and the third communication submodule respectively;

[0015] A field programmable device, used to control the first communication submodule to communicate with the first device; and / or

[0016] The field programmable device is used to control the second communication submodule, the third communication submodule and the second device to communicate.

[0017] In a possible implementation of the first aspect, the external communication interface of the communication module is a network port or an optical port.

[0018] In a possible implementation of the first aspect, a communication protocol used when the communication module communicates with the second device is an IEC61850 protocol.

[0019] In a possible implementation of the first aspect, the energy storage module includes at least one of an energy storage converter and a DC chopper, and the field programmable device is electrically connected to the energy storage converter and / or the DC chopper respectively;

[0020] Field programmable device, used to control the energy storage converter to convert AC to DC;

[0021] A field programmable device is used to control a DC chopper to increase or decrease the voltage of a DC.

[0022] In one possible implementation of the first aspect, the energy storage module includes a maximum power point tracker;

[0023] A field programmable device is used to control the maximum power point tracker to track the maximum power point.

[0024] In a possible implementation manner of the first aspect, the present invention further includes at least one of a state detection module, a relay monitoring module and a fan monitoring module, and the field programmable device is electrically connected to the state detection module, the relay monitoring module and / or the fan monitoring module respectively;

[0025] A field programmable device is used to control the state detection module to detect the overvoltage state and the overcurrent state;

[0026] A field programmable device is used to control the relay monitoring module to drive the relay and detect the relay status;

[0027] The field programmable device is used to control the fan monitoring module to drive the fan and detect the fan status.

[0028] In a possible implementation manner of the first aspect, the system further includes at least one of a flash memory, a random access memory, and a flash memory controller, and the system-level chip is electrically connected to the flash memory, the random access memory, and / or the flash memory controller respectively;

[0029] A system-on-chip, used for controlling the flash memory to store a main program of the system-on-chip;

[0030] A system-level chip, used to control the random access memory to store the running data of the target operating system;

[0031] A system-level chip is used to control a flash memory controller to store the operating data of an energy storage control device.

[0032] Based on the same inventive concept, in a second aspect, an embodiment of the present application further provides an energy storage control system, the system comprising the energy storage control device in the first aspect, or any possible implementation manner of the first aspect.

[0033] The energy storage control device and energy storage control system of the embodiment of the present application, wherein the energy storage control device includes a system-level chip, a sampling module, an energy storage module and a communication module, wherein the system-level chip is electrically connected to the sampling module, the energy storage module and the communication module respectively, wherein the sampling module includes N sampling chips, N is an integer greater than or equal to 0 and less than or equal to a preset threshold, and N is determined by the number of input analog signals of the energy storage control device, and the system-level chip is used to uniformly control the sampling module to collect analog signals and convert them into digital signals, control the energy storage module to convert and store electric energy, and control the communication module to communicate with the first device and / or the second device with different communication protocols. Therefore, a single chip can be used to centrally control the sampling module, the energy storage module and the communication module, and uniformly realize the functions of collection, control and external communication, which greatly reduces the number of chips, reduces the failure rate, and improves the reliability and stability of the energy storage control device. In addition, different numbers of sampling chips can be used in different demand scenarios, so that different demand scenarios can be flexibly adjusted and matched, so that resources can be effectively utilized, and there will be no waste or shortage of resources, and the flexibility is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 It is a structural schematic diagram of an energy storage control device provided in an embodiment of the present application;

[0036] Figure 2 is another structural schematic diagram of the energy storage control device provided in an embodiment of the present application;

[0037] Figure 3 It is a structural schematic diagram of a communication module in the energy storage control device provided in an embodiment of the present application;

[0038] Figure 4 It is a structural schematic diagram of an energy storage module in the energy storage control device provided in an embodiment of the present application;

[0039] Figure 5 This is another structural schematic diagram of the energy storage control device provided in the embodiment of the present application;

[0040] Figure 6 This is another structural schematic diagram of the energy storage control device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0041] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0043] It is obvious to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit or scope of the present application. Therefore, the present application is intended to cover modifications and changes of the present application that fall within the scope of the corresponding claims (technical solutions for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present application can be combined with each other without contradiction.

[0044] Before describing the technical solutions provided by the embodiments of the present application, in order to facilitate the understanding of the embodiments of the present application, the present application first specifically describes the problems existing in the related art:

[0045] In recent years, with the continuous growth of energy demand and the rapid development of renewable energy, energy storage systems, as an important energy storage and supply solution, have received widespread attention. However, energy storage systems not only need to have efficient energy storage capacity and energy conversion efficiency, but also need to ensure their reliability and stability.

[0046] Traditional energy storage control devices usually use different chips to implement different functions. For example, DSP+FPGA+ARM multi-chips are used to implement the control and external communication functions of energy storage converter PCS, DC chopper DCDC, and maximum power point tracker MPPT. Due to the large number of chips and the different service lives of different chips, as long as any one of the chips fails, it will affect the reliable operation of the energy storage control device, resulting in a high failure rate and poor reliability and stability. In addition, due to the limitation of the number of A / D channels of the chip itself, it is difficult to adapt to different demand scenarios, which will cause waste or shortage of resources and poor flexibility. Therefore, the existing technology has the problem of poor reliability, stability and flexibility of energy storage control equipment.

[0047] In addition, the current communication board of the energy storage control equipment does not support the power station communication protocol 103, 104 or IEC61850. In order to achieve communication with the power station, most manufacturers use an external protocol converter to send the serial port protocol or CAN protocol to the protocol converter, and then convert it into the protocol format required by the power station to achieve data communication and control of the energy storage equipment by the power station. For example, the traditional energy storage device control system uses DSP+FPGA+ARM to achieve the control and external communication of the energy storage module. CAN, 485 or network port are used for external communication. Since the main frequency of the ARM chip used for communication is not high and the RAM resources on the chip are relatively small, it cannot meet the power station communication protocol. To solve this problem, most companies in the industry use the addition of a protocol converter to achieve data communication between the energy storage control equipment and the energy management system (EMS). This method adds additional hardware costs, and because of the need for protocol conversion, decoding and encoding of communication frame data, this process is relatively time-consuming, making the communication efficiency very low. Therefore, the existing technology still has the problems of high communication cost and low communication efficiency.

[0048] Based on this, the embodiments of the present application provide an energy storage control device and an energy storage control system, which can solve the problems of low reliability, stability, flexibility and communication efficiency of existing energy storage control devices.

[0049] The energy storage control device and energy storage control system provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0050] Figure 1 It is a structural schematic diagram of an energy storage control device provided in an embodiment of the present application.

[0051] like Figure 1 As shown, the energy storage control device includes a system-level chip 10, a sampling module 20, an energy storage module 30 and a communication module 40, and the system-level chip 10 is electrically connected to the sampling module 20, the energy storage module 30 and the communication module 40 respectively; wherein the sampling module 20 includes N sampling chips, N is an integer greater than or equal to 0 and less than or equal to a preset threshold, and N is determined by the number of input analog signals of the energy storage control device;

[0052] The system-level chip 10 is used to control N sampling chips in the sampling module 20 to collect analog signals and convert them into digital signals according to application scenarios;

[0053] The system-level chip 10 is used to control the energy storage module 30 to convert and store electric energy;

[0054] The system-on-chip 10 is used to control the communication module 40 to communicate with the first device and / or the second device, wherein the communication protocols of the first device and the second device are different.

[0055] The system-on-a-Chip (SOC) 10 is a micro-system. For example, the model of the system-on-a-Chip 10 may be ZYNQ-7020.

[0056] The sampling module 20 can collect analog signals and convert them into digital signals. The sampling module 20 includes N sampling chips, where N is an integer greater than or equal to 0 and less than or equal to a preset threshold, wherein the preset threshold can be set according to demand, for example, the preset threshold can be determined according to the maximum input number of the analog signal. The number N of sampling chips can be flexibly determined by the number of analog signals to be collected by the energy storage control device, that is, in different scenarios, the number of analog signal inputs is different, and the number N of welded sampling chips can also be different. For example, N can be 2, 3 or 4, etc., which is conducive to achieving full utilization of resources, avoiding waste of resources, and avoiding shortage of resources, thereby improving the flexibility of the energy storage control device and being applicable to different demand scenarios.

[0057] The energy storage module 30 can convert and store electrical energy.

[0058] The communication module 40 can communicate with the first device and / or the second device. The communication protocols of the first device and the second device are different, that is, the communication module can communicate with communication devices of different protocols.

[0059] The first device may be a background device, which can be used for debugging work by R&D personnel.

[0060] The second device may be an external device, for example, a device from another manufacturer having a specific communication protocol.

[0061] Specifically, the energy storage control device may include a system-level chip 10, a sampling module 20, an energy storage module 30 and a communication module 40. The system-level chip 10 may be electrically connected to the sampling module 20, the energy storage module 30 and the communication module 40, respectively. The sampling module 20 includes N sampling chips, where N is the number of sampling chips selected for welding determined by the number of input analog signals of the energy storage control device. Different numbers of sampling chips may be selected for welding under different demand scenarios. The system-level chip 10 may uniformly control the sampling module 20 to collect analog signals and convert them into digital signals, control the energy storage module 30 to convert and store electric energy, and control the communication module 40 to communicate with a first device and / or a second device with different communication protocols.

[0062] In the energy storage control device provided in the embodiment of the present application, the energy storage control device includes a system-level chip 10, a sampling module 20, an energy storage module 30 and a communication module 40, wherein the sampling module 20 includes N sampling chips, N is the number of sampling chips selected for welding determined by the number of input analog signals of the energy storage control device, and different numbers of sampling chips can be selected for welding under different demand scenarios, so that different demand scenarios can be flexibly adjusted and matched, and resources can be effectively utilized without causing waste or shortage of resources. The flexibility is high, and the sampling module, energy storage module and communication module can be centrally controlled by a single chip, and functions such as collection, control and external communication are uniformly realized, which greatly reduces the number of chips, reduces the failure rate, and improves the reliability and stability of the energy storage control device.

[0063] In some embodiments, Figure 2 As shown, the system-level chip 10 includes a first execution core 01, a second execution core 02 and a field programmable device 03, and the field programmable device 03 is electrically connected to the first execution core 01, the second execution core 02, the sampling module 20, the energy storage module 30, and the communication module 40 respectively;

[0064] A first execution kernel 01, used for communicating with a first device;

[0065] The second execution core 02 is used to receive the signal collected by the sampling module 20 through the field programmable device 03, process the signal and generate a control signal when the first execution core 01 runs the target operating system. The control signal is used to control the energy storage module 30 to convert and store electric energy;

[0066] The second execution core 02 is also used to control the communication module 40 to communicate with the second device.

[0067] Among them, Field-Programmable Gate Array (FPGA) is a semi-customized circuit. The same FPGA can produce different circuit functions with different programming data, which is flexible to use.

[0068] The first execution core 01 (CORE0) can communicate with the first device, for example, it can communicate with the background device for debugging by R&D personnel. At the same time, the first execution core 01 can also be used to run and maintain the target operating system, for example, it can run and maintain the LINUX operating system.

[0069] The second execution core 02 (CORE1) can receive the signal collected by the sampling module 20 through the field programmable device 03 (FPGA), process the signal and generate a control signal when the first execution core 01 runs the target operating system. The control signal is used to control the energy storage module 30 to convert and store electric energy. At the same time, the second execution core 02 can also control the communication module 40 to communicate with the second device, for example, the communication module 40 can be controlled to communicate with an external device.

[0070] Specifically, the system-level chip 10 includes a first execution core 01, a second execution core 02 and a field programmable device 03, and the field programmable device 03 is electrically connected to the first execution core 01, the second execution core 02, the sampling module 20, the energy storage module 30, and the communication module 40 respectively; wherein, the first execution core 01 can be used to communicate with the first device, and the second execution core 02 can be used to receive the signal collected by the sampling module 20 through the field programmable device 03, process the signal and generate a control signal for controlling the energy storage module 30 to convert and store electric energy when the first execution core 01 runs the target operating system, and the second execution core 02 can also be used to control the communication module 40 to communicate with the second device, and the first execution core 01, the second execution core 02 and the field programmable device 03 in a system-level chip can be used to centrally control the sampling module, the energy storage module and the communication module, and uniformly realize the functions of collection, control and external communication, which greatly reduces the number of chips, for example, the failure rate can be 1 / 3 of the "DSP+FPGA+ARM multi-chip method" in the prior art, which can reduce the failure rate and improve the reliability and stability of the energy storage control device.

[0071] In some embodiments, Figure 3 As shown, the communication module 40 includes a first communication submodule 41, a second communication submodule and a third communication submodule, and the field programmable device 03 is electrically connected to the first communication submodule 41, the second communication submodule 42 and the third communication submodule 43 respectively;

[0072] The field programmable device 03 is used to control the first communication submodule 41 to communicate with the first device; and / or,

[0073] The field programmable device 03 is used to control the second communication submodule 42 and the third communication submodule 43 to communicate with the second device.

[0074] The first communication submodule 41 can communicate with the first device.

[0075] The second communication submodule 42 and the third communication submodule 43 can communicate with the second device.

[0076] Specifically, the communication module 40 may include a first communication submodule 41, a second communication submodule and a third communication submodule, wherein the field programmable device 03 is electrically connected to the first communication submodule 41, the second communication submodule 42 and the third communication submodule 43 respectively, and the field programmable device 03 may be used to control the first communication submodule 41 to communicate with the first device, and control the second communication submodule 42 and the third communication submodule 43 to communicate with the second device. Since the communication module can communicate with the first device and the second device respectively, and the communication protocols of the first device and the second device are different, the energy storage control device can communicate with devices of different protocol types, support richer communication methods, and the communication methods are more flexible.

[0077] In some embodiments, the external communication interface of the communication module 40 is a network port or an optical port.

[0078] In some embodiments, the communication protocol used by the communication module 40 to communicate with the second device is the IEC61850 protocol.

[0079] Specifically, the external communication interface of the communication module 40 is a network port or an optical port, and the communication protocol when the communication module 40 communicates with the second device is the IEC61850 protocol. Therefore, the energy storage control device can support the power station communication protocol, and there is no need to purchase a protocol converter, which reduces hardware costs and avoids the communication conversion process. There is no need to decode and encode the communication frame data, which saves time and improves communication efficiency.

[0080] In some embodiments, see Figure 4 The energy storage module 30 includes at least one of an energy storage converter 31 and a DC chopper 32, and the field programmable device 03 is electrically connected to the energy storage converter 31 and / or the DC chopper 32 respectively;

[0081] Field programmable device 03, used to control energy storage converter 31 to perform AC / DC conversion;

[0082] The field programmable device 03 is used to control the DC chopper 32 to increase or decrease the voltage of the DC.

[0083] Among them, the energy storage converter 31 (Power Conversion System, PCS) can perform AC to DC conversion.

[0084] The DC chopper 32 (DCDC) can be used to step up or step down the DC voltage.

[0085] Specifically, the energy storage module 30 includes at least one of an energy storage inverter 31 and a DC chopper 32. The field programmable device 03 is electrically connected to the energy storage inverter 31 and / or the DC chopper 32 respectively. Through the field programmable device 03 in a single system-level chip, the energy storage inverter 31 can be controlled to perform AC-DC conversion, and the DC chopper 32 can be controlled to perform DC boost or buck. Therefore, the energy storage inverter 31 and the DC chopper 32 can be uniformly controlled to perform electrical energy conversion and storage through a single system-level chip.

[0086] In some embodiments, you can continue to see Figure 4 , the energy storage module 30 includes a maximum power point tracker 33;

[0087] The field programmable device 03 is used to control the maximum power point tracker 33 to track the maximum power point.

[0088] The maximum power point tracker 33 can track the maximum power point.

[0089] Specifically, the energy storage module 30 may also include a maximum power point tracker 33, and the field programmable device 03 in a single system-level chip may be used to control the maximum power point tracker 33 to track the maximum power point, so that the energy storage inverter 31 and the DC chopper 32 may be uniformly controlled through a single system-level chip to perform conversion and storage of electric energy, and the maximum power point tracker 33 may also be controlled to track the maximum power point.

[0090] In some embodiments, see Figure 5 , the energy storage control device further includes at least one of a state detection module 50, a relay monitoring module 60 and a fan monitoring module 70, and the field programmable device 03 is electrically connected to the state detection module 50, the relay monitoring module 60 and / or the fan monitoring module 70 respectively;

[0091] The field programmable device 03 is used to control the state detection module 50 to detect the overvoltage state and the overcurrent state;

[0092] Field programmable device 03, used for controlling relay monitoring module 60 to drive relay and detect relay status;

[0093] The field programmable device 03 is used to control the fan monitoring module 70 to drive the fan and detect the status of the fan.

[0094] The state detection module 50 can be used to detect an overvoltage state and an overcurrent state.

[0095] The relay monitoring module 60 can be used to drive the relay and detect the relay status.

[0096] The fan monitoring module 70 can be used to drive the fan and detect the status of the fan.

[0097] Specifically, the energy storage control device may further include at least one of a state detection module 50, a relay monitoring module 60 and a fan monitoring module 70. The field programmable device 03 is electrically connected to the state detection module 50, the relay monitoring module 60 and / or the fan monitoring module 70, respectively. The field programmable device in the system-level chip may uniformly control the state detection module 50 to detect overvoltage state and overcurrent state, control the relay monitoring module 60 to drive the relay and detect the relay state, and control the fan monitoring module 70 to drive the fan and detect the fan state. Thus, the overvoltage state and overcurrent state detection functions, the relay driving and relay state detection functions, and the fan driving and fan state detection functions may be uniformly realized through a single system-level chip, thereby enriching the device functions while using a single chip.

[0098] In some embodiments, you can continue to see Figure 5 , the energy storage control device further includes at least one of a flash memory 04, a random access memory 05 and a flash memory controller 06, and the system-level chip 10 is electrically connected to the flash memory 04, the random access memory 05 and / or the flash memory controller 06 respectively;

[0099] The system-on-chip 10 is used to control the flash memory 04 to store the main program of the system-on-chip 10;

[0100] The system-level chip 10 is used to control the random access memory 05 to store the operation data of the target operating system;

[0101] The system-level chip 10 is used to control the flash memory controller 06 to store the operation data of the energy storage control device.

[0102] The flash memory 04 has a memory function, data can be saved after power failure, and the main program of the system-on-chip 10 can be stored. Exemplarily, the flash memory 04 can be QSPI FLASH, which is used to store the BOOT boot program of the system-on-chip (SOC).

[0103] The random access memory 05 has no memory function and can store data that does not need to be saved after power failure, can store the running data of the target operating system, and realize the expansion of the internal memory RAM of the system-level chip. For example, the random access memory 05 can be a DDR3 memory bar, and DDR3 is used to realize the expansion of the internal memory RAM of the system-level chip SOC, and can also realize the operation of the LINUX program.

[0104] The flash memory controller 06 has flash memory function and control function, and can store the operation data of the energy storage control device. For example, eMMC can be used to store some important system operation data that needs to be stored after power failure: fault recording data, operation status data, fault event data, etc.

[0105] Specifically, the energy storage control device may also include at least one of a flash memory 04, a random access memory 05 and a flash memory controller 06. The system-level chip 10 is electrically connected to the flash memory 04, the random access memory 05 and / or the flash memory controller 06, respectively, and the system-level chip 10 can control the flash memory 04 to store the main program of the system-level chip 10, control the random access memory 05 to store the operating data of the target operating system, and control the flash memory controller 06 to store the operating data of the energy storage control device, thereby expanding the storage space through the flash memory 04, the random access memory 05 and the flash memory controller 06, improving the operating speed, reducing the memory occupancy of the system-level chip, and optimizing the performance of the energy storage control device.

[0106] In one embodiment, Figure 6 As shown, the energy storage control device includes a system-level chip 10, a flash memory 04, a random access memory 05, a flash memory controller 06, a sampling module 20, an energy storage module 30, a communication module 40, a state detection module 50, a relay monitoring module 60 and a fan monitoring module 70. Specifically:

[0107] 1) The system-on-chip 10 may include a first execution core 01 (CORE0), a second execution core 02 (CORE1) and a field programmable device 03 (FPGA).

[0108] The system-level chip 10 is a system-level chip with a multi-core processor and a built-in FPGA, and data interaction between the core and the FPGA can be achieved through an internal bus. For example, the system-level chip includes but is not limited to ZYNQ-7020, and the system-level chip is composed of a built-in FPGA, built-in ARM cores CORE0 and CORE1. The system-level chip realizes data interaction between CORE0, CORE1 and the built-in FPGA through the internal AXI bus.

[0109] Among them, one core can perform wave control, algorithm operation, state judgment and peripheral control; the other core can perform system maintenance, communication data decoding and storage device management. For example, CORE0 is used to run and maintain the LINUX operating system, background communication and storage device management; CORE1 is used to receive data calculation transmitted by FPGA, communication protocol analysis, control algorithm implementation of DC chopper DCDC, control algorithm implementation of energy storage converter PCS, and control algorithm implementation of maximum power point tracker MPPT. The core functions of the system-level chip are reasonably allocated to ensure the maximum efficiency of the system-level chip. The use of a single system-level chip can realize system control and communication, ensuring the stable and reliable operation of the system.

[0110] The field programmable device FPGA can realize 3-way network port communication, energy storage converter PCS wave control, DC chopper DCDC wave control, maximum power point tracker MPPT wave control (reserved function), lightning protection and overcurrent status detection, relay drive and status detection, fan drive and status detection.

[0111] 2) The sampling module 20 includes an AD sampling chip 1, an AD sampling chip 2, ..., an AD sampling chip m.

[0112] Among them, the AD sampling chip can use an 8-channel sampling chip or a 16-channel sampling chip model, the sampling chip can be selectively welded, and the number and model of the sampling chips can be determined according to the number of analog quantities that the energy storage control module needs to collect. It does not need to rely on the A / D resources of the control chip itself, can adapt to a variety of demand scenarios, and can improve resource utilization. It has higher flexibility and can solve the problem of different types of energy storage devices in the prior art. Due to the influence of the number of chip AD channels, it is difficult to achieve the unification of the control platform, resulting in waste or insufficient control platform resources.

[0113] For example, the FPGA built into the system-level chip is connected to the external AD sampling chip through the parallel port bus to read the sampled data, and the read data is transmitted to CORE1 through the internal bus of the chip. The AD sampling chip uses an 8-channel or 16-channel AD chip, and the m value is determined according to the maximum number of expansions. The number of AD sampling chips can be configured according to the actual requirements of the system, and the AD chip demand statistics are conducted for different systems. The AD channel configuration of different devices is realized by selective welding, and the expansion of the AD sampling channel is realized through the parallel port bus, making the system configuration more flexible and diverse, and realizing the platform development of the control system.

[0114] 3) Communication module 40, including a first communication submodule (PHY circuit 1), a second communication submodule (PHY circuit 2), and a third communication submodule (PHY circuit 3), and the Ethernet PHY chip is a chip for interfacing with external signals.

[0115] For example, the FPGA built into the system-level chip implements a soft IP core of the MAC function through software development, and is externally connected to PHY circuit 1, PHY circuit 2, and PHY circuit 3 respectively.

[0116] Among them, one circuit (PHY circuit 1) is used for system maintenance, operation status detection and program update, and the other two circuits (PHY circuit 2 and PHY circuit 3) are used for communication with the energy management system (EMS) or ring network communication between devices. Specifically, PHY circuit 1 can be used for communication between background equipment and system-level chips, including operation status monitoring, control instruction sending and application program update. PHY circuit 2 and PHY circuit 3 can be used for communication between system-level chips and external devices, such as external devices or energy management systems (EMS) that support IEC61850 communication protocol. At the same time, since it has two network ports (optical ports), it can also form a ring network communication with external devices. The PHY circuit supports 100M network port communication or optical fiber communication. The communication data can be parsed in the FPGA, and the acquired message data is transmitted to CORE1 through the internal bus. Therefore, the energy storage control device can support the power station communication protocol, without the need to purchase a protocol converter, reducing the hardware cost, and also avoiding the communication conversion process. There is no need to decode and encode the communication frame data, saving time and improving communication efficiency.

[0117] 4) Energy storage module 30 , state detection module 50 , relay monitoring module 60 , and fan monitoring module 70 .

[0118] After receiving the data collected by the sampling module, CORE1 can generate a control signal to control the energy storage module to convert and store electrical energy. At the same time, after receiving the electrical signal status detected by the status detection module, CORE1 can control the relay and fan through the relay monitoring module and the fan monitoring module.

[0119] In one example, the state detection module may include a lightning protection and overcurrent state detection circuit, the relay monitoring module may include a relay drive and state feedback detection circuit, and the fan monitoring module may include a fan drive and state feedback detection circuit.

[0120] In another example, the FPGA built into the system-level chip is connected to the external AD sampling chip through the parallel port bus to read the sampled data. The read data is transmitted to CORE1 through the internal bus of the chip. CORE1 calculates the wave control timing of the energy storage converter PCS, DC chopper DCDC, and maximum power point tracker MPPT in the energy storage module 30 based on the sampled data, and updates the value of the corresponding register of the FPGA through the internal bus to realize PWM wave control. CORE1 controls the speed of the fan and the contact of the relay according to the state feedback detection data of the state detection module.

[0121] 5) Flash memory 04, random access memory 05, flash memory controller.

[0122] The random access memory is used to expand the system RAM and run the LINUX program; the flash memory is used to store the BOOT boot program of the system-level chip; the flash controller is used to store system operation data, including fault recording data, operation status data, and fault event data. For example, external expansion of DDR3, eMMC, QSPI FLASH and other memory peripherals can support the device to run the LINUX operating system, reducing the system development and maintenance costs.

[0123] Based on the same inventive concept, an embodiment of the present application further provides an energy storage control system, the system includes the energy storage control device in any of the above embodiments, so the energy storage control system has all the beneficial effects of the above energy storage control devices.

[0124] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0125] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0126] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An energy storage control device, characterized in that: It includes a system-level chip, a sampling module, an energy storage module and a communication module, wherein the system-level chip is electrically connected to the sampling module, the energy storage module and the communication module respectively; wherein the sampling module includes N sampling chips, wherein N is an integer greater than or equal to 0 and less than or equal to a preset threshold, and wherein N is determined by the number of input analog signals of the energy storage control device; The system-level chip is used to control the N sampling chips in the sampling module to collect analog signals and convert them into digital signals according to the application scenario; The system-level chip is used to control the energy storage module to convert and store electric energy; The system-level chip is used to control the communication module to communicate with a first device and / or a second device, wherein the communication protocols of the first device and the second device are different.

2. The energy storage control device according to claim 1, characterized in that: The system-level chip includes a first execution core, a second execution core and a field programmable device, and the field programmable device is electrically connected to the first execution core, the second execution core, the sampling module, the energy storage module, and the communication module respectively; The first execution kernel is used to communicate with the first device; The second execution kernel is used to receive the signal collected by the sampling module through the field programmable device, process the signal and generate a control signal when the first execution kernel runs the target operating system, and the control signal is used to control the energy storage module to convert and store electric energy; The second execution kernel is further used to control the communication module to communicate with the second device.

3. The energy storage control device according to claim 2, characterized in that: The communication module includes a first communication submodule, a second communication submodule and a third communication submodule, and the field programmable device is electrically connected to the first communication submodule, the second communication submodule and the third communication submodule respectively; The field programmable device is used to control the first communication submodule to communicate with the first device; and / or The field programmable device is used to control the second communication submodule, the third communication submodule and the second device to communicate.

4. The energy storage control device according to claim 3, characterized in that: The external communication interface of the communication module is a network port or an optical port.

5. The energy storage control device according to claim 4, characterized in that: The communication protocol used when the communication module communicates with the second device is the IEC61850 protocol.

6. The energy storage control device according to claim 2, characterized in that: The energy storage module includes at least one of an energy storage converter and a DC chopper, and the field programmable device is electrically connected to the energy storage converter and / or the DC chopper respectively; The field programmable device is used to control the energy storage converter to perform AC / DC conversion; The field programmable device is used to control the DC chopper to increase or decrease the voltage of the DC.

7. The energy storage control device according to claim 2, characterized in that: The energy storage module includes a maximum power point tracker; The field programmable device is used to control the maximum power point tracker to track the maximum power point.

8. The energy storage control device according to claim 2, characterized in that: It also includes at least one of a state detection module, a relay monitoring module and a fan monitoring module, and the field programmable device is electrically connected to the state detection module, the relay monitoring module and / or the fan monitoring module respectively; The field programmable device is used to control the state detection module to detect the overvoltage state and the overcurrent state; The field programmable device is used to control the relay monitoring module to drive the relay and detect the relay status; The field programmable device is used to control the fan monitoring module to drive the fan and detect the fan status.

9. The energy storage control device according to any one of claims 1 to 8, characterized in that: It also includes at least one of a flash memory, a random access memory and a flash memory controller, and the system-level chip is electrically connected to the flash memory, the random access memory and / or the flash memory controller respectively; The system-on-chip is used to control the flash memory to store the main program of the system-on-chip; The system-level chip is used to control the random access memory to store the operation data of the target operating system; The system-level chip is used to control the flash memory controller to store the operating data of the energy storage control device.

10. An energy storage control system, characterized in that: The system comprises the energy storage control device according to any one of claims 1 to 9.

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