Energy adjusting method and device, inverter and storage medium

Abstract

The invention is suitable for the technical field of inverters, and provides an energy adjusting method and device, an inverter and a storage medium, the method comprises the steps that a target working mode set for each access device of a target inverter is acquired, and the access devices comprise at least one of an input source device, a load device and an expansion accessory device; performing mode compatibility on the target working mode of each access device, and determining an energy transfer relationship among the access devices in the target working mode; and under the condition that the working condition is detected to be changed in the operation process of the target working mode, the energy transfer relation is adjusted, so that the energy transfer state between the input source equipment and the load equipment is balanced. The problems of rapid energy switching and rapid mode compatibility are solved, and the external access equipment of the inverter is safely and stably switched.

Description

Technical Field

[0001] The present invention belongs to the technical field of inverters, and particularly relates to an energy regulation method, device, inverter, and storage medium. Background Art

[0002] Currently, for energy devices such as photovoltaic inverters and photovoltaic energy storage hybrid inverters, the methods for introducing access devices include:

[0003] (1) Using an external control device to control the access device, which results in increased costs and poor effects;

[0004] (2) Connecting the access device to the inverter, but restricting the number or type of access, and having poor scalability for supported access devices;

[0005] (3) In the case of dynamic switching or switching of access devices, it is necessary to shut down the inverter or re-equip the entire system, which does not support rapid scheme switching and poses risks of energy imbalance or overflow.

[0006] In the case where the functions of the energy system including the inverter are complex and there are higher requirements for energy switching and the access and withdrawal responses of access devices, the existing technologies can no longer meet the rapid energy regulation responses in cases such as abnormal power failure of equipment, emergency explosion and fire, and rapid traceability of on-site problems. Therefore, there is an urgent need in the art for a solution for regulating access devices in complex energy systems to automatically switch the working modes of external access devices of the inverter quickly, safely, and stably in the case of accessing different devices. Summary of the Invention

[0007] Embodiments of the present invention provide an energy regulation method, aiming to solve the problems of rapid energy switching and rapid mode compatibility, and realizing the safe and stable switching of external access devices of the inverter.

[0008] An energy regulation method according to an embodiment of the present invention is implemented as follows:

[0009] Obtain the target working modes set for each access device of the target inverter, where the access device includes at least one of an input source device, a load device, and an expansion accessory device;

[0010] Perform mode compatibility on the target working modes of each access device, and determine the energy transfer relationship between each access device in the target working mode;

[0011] Detect whether the working conditions change during the operation of the target working mode;

[0012] In the case where it is detected that the working conditions change, adjust the energy transfer relationship to balance the energy transfer state between the input source device and the load device.

[0013] Furthermore, the energy regulation method further includes:

[0014] Obtain the first working mode of the target inverter and the second working modes of each access device;

[0015] Perform mode compatibility between the first working mode and each of the second working modes, so that the energy configuration parameters of the first working mode match the energy configuration parameters of the second working modes.

[0016] Furthermore, the energy regulation method further includes:

[0017] Detect the access devices supported by the target inverter and their functions;

[0018] Based on the access devices supported by the target inverter and their functions, obtain the first working mode of the target inverter and the second working modes of each access device.

[0019] Furthermore, the input source device includes at least one of a mains power supply, a photovoltaic power supply, a battery, and a generator; the load device includes at least one of a charging pile, a heat pump, and a smart load, and the expansion accessory device includes a smart junction box for expanding the hardware function of the target inverter.

[0020] Furthermore, the situations where the working conditions change include abnormal input source devices;

[0021] Adjust the energy transfer relationship to balance the energy transfer state between the input source device and the load device, including:

[0022] Switch to other input source devices to adjust the energy transfer relationship and balance the energy transfer state between the input source device and the load device.

[0023] Furthermore, the situations where the working conditions change include switching each access device from the target inverter to the expansion accessory device;

[0024] Adjust the energy transfer relationship to balance the energy transfer state between the input source device and the load device, including:

[0025] Send a shutdown command to each access device to trip each access device and disconnect the energy transfer relationship, while the target inverter remains in the operating state.

[0026] Furthermore, the situations where the working conditions change include transient energy shocks;

[0027] Adjust the energy transfer relationship to balance the energy transfer state between the input source device and the load device, including:

[0028] Switch to other input source devices, or adjust the energy configuration parameters of the load device to adjust the energy transfer relationship and balance the energy transfer state between the input source device and the load device.

[0029] An embodiment of the present invention further provides an energy regulation device, including:

[0030] An acquisition module, configured to acquire the target working mode set for each access device of the target inverter, where the access device includes at least one of an input source device, a load device, and an extended accessory device;

[0031] A determination module, configured to perform mode compatibility on the target working modes of each access device and determine the energy transfer relationship between the access devices in the target working mode;

[0032] An adjustment module, configured to detect whether the working condition changes during the operation of the target working mode; in the case where it is detected that the working condition changes, adjust the energy transfer relationship to balance the energy transfer state between the input source device and the load device.

[0033] An embodiment of the present invention further provides an inverter, including:

[0034] At least one processor; and,

[0035] A memory communicatively connected to the at least one processor; wherein,

[0036] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the energy regulation method described above.

[0037] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the energy regulation method described above is implemented.

[0038] In the present invention, by performing mode compatibility on the target working modes set for each access device of the target inverter, the energy transfer relationship between the access devices in the target working mode is determined; in the case where it is detected that the working condition changes during the operation of the target working mode, the energy transfer relationship is adjusted to balance the energy transfer state between the input source device and the load device. It meets the requirements of rapid energy switching and rapid mode compatibility, and provides an effective solution for the safe and stable switching of external access devices of the inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a flowchart of an energy regulation method provided by an embodiment of the present invention;

[0040] Figure 2 It is a schematic diagram of an energy matrix provided by an embodiment of the present invention;

[0041] Figure 3 It is a schematic diagram of the change of an energy matrix provided by an embodiment of the present invention;

[0042] Figure 4 It is another schematic diagram of the change of an energy matrix provided by an embodiment of the present invention;

[0043] Figure 5 It is another schematic diagram of the change of an energy matrix provided by an embodiment of the present invention;

[0044] Figure 6 It is another schematic diagram of the change of an energy matrix provided by an embodiment of the present invention;

[0045] Figure 7 It is a schematic diagram of an energy regulation device provided by an embodiment of the present invention;

[0046] Figure 8 It is a schematic diagram of the embedding of a software and hardware platform provided by an embodiment of the present invention;

[0047] Figure 9 It is a schematic diagram of the execution process of an energy regulation method provided by an embodiment of the present invention. Detailed implementation manners

[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] The present invention is applicable to complex systems with multiple input sources and multiple working modes. Compared with the prior art, without an external control device, the control of each access device can be achieved by determining the energy transfer relationship between the access devices in the target working mode, and the rapid switching of different energy transfer schemes can be realized according to the change of working conditions, avoiding the risk of energy imbalance or overflow, and significantly improving the energy regulation ability. Due to the access of expansion accessory devices, the expandability of the access devices supported by the inverter can also be improved, and the number or type of access is not limited, and dynamic switching does not require the system to stop or be re-equipped.

[0050] Embodiment 1

[0051] This embodiment provides an energy regulation method, which can be applied to electronic devices with communication, computing, and data storage capabilities. In practical applications, the method of this embodiment can be applied to such electronic devices as energy devices, specifically to the embedded computer real-time operating system of energy devices, and implemented by a computer program. Energy devices include, for example, inverters, and inverters include inverter devices that provide energy such as photovoltaic inverters and photovoltaic energy storage hybrid inverters. In the scenario of a complex energy system with multiple input sources and multiple access devices, in the case of re-connecting or disconnecting access devices to the device and needing to re-adjust energy, etc., it meets the requirements of rapid energy switching and rapid mode compatibility, provides a solution for the safe and stable external access device switching of the inverter, and can meet the energy regulation in cases such as abnormal power-off of the device, emergency explosion and fire, and rapid traceability of on-site problems.

[0052] The specific process of the energy regulation method of this embodiment can be as Figure 1 shown and includes:

[0053] Step 101, obtain the target working modes set for each access device of the target inverter.

[0054] The access device includes at least one of an input source device, a load device, and an expansion accessory device.

[0055] In a specific implementation, the input source device includes at least one of a mains power supply, a photovoltaic power supply, a battery, and a generator, or other clean energy; the load device includes at least one of a charging pile, a heat pump, and an intelligent load, and the expansion accessory device includes an intelligent junction box for expanding the hardware function of the target inverter, such as a BI (backup interface) intelligent junction box. The intelligent junction box can access an input source device, a load device, other inverters, other expansion accessory devices, etc. during use to achieve the expansion of the inverter hardware function.

[0056] In some specific implementations, the energy regulation method of this embodiment further includes:

[0057] Detect the access devices supported by the target inverter and their functions; and

[0058] According to the access devices supported by the target inverter and their functions, obtain the first working mode of the target inverter and the second working modes of each access device.

[0059] After the device is powered on and running, the system detects the software and hardware functions supported by the current target inverter, and also determines the access devices supported by it and their functions. According to the detection results, obtain the working modes of the corresponding access devices, and at the same time obtain the working mode of the target inverter, so as to perform mode compatibility between the target inverter and its access devices subsequently, and avoid abnormal operation of the energy system caused by mismatched configurations of their working modes.

[0060] The energy regulation method of this embodiment may further include:

[0061] Obtain the first working mode of the target inverter and the second working modes of each access device; and

[0062] Perform mode compatibility between the first working mode and each second working mode so that the energy configuration parameters of the first working mode match the energy configuration parameters of the second working mode.

[0063] In this embodiment, by matching the relevant energy configuration parameters of the working modes of the target inverter and each access device, description compatibility is achieved. The energy configuration parameters are, for example, power and timing period.

[0064] In one example, the output power in the first working mode of the target inverter is 3 kw, and the required power in the second working mode of the charging pile is 5 kw. After mode compatibility processing, the output power in the first working mode of the target inverter is matched to the required power of the second working mode of the charging pile to ensure the normal operation of the charging pile and ensure energy balance.

[0065] Step 102: Perform mode compatibility on the target working modes of each access device to determine the energy transfer relationship between each access device in the target working mode.

[0066] In specific implementation, performing mode compatibility on the target working modes of each access device means that when the target inverter is connected to different access devices, according to the target working modes of the input source device and the load device set by the user, determine the energy flow direction between the input source device and the load device, so as to determine the energy transfer relationship between each access device in the target working mode. This energy transfer relationship is called an energy matrix. In one example, the energy matrix is as Figure 2 shown. The inverter is connected to devices such as the mains power supply, generator, photovoltaic power supply, and intelligent junction box. These devices form corresponding energy transfer relationships according to the set target working modes.

[0067] In actual operation, due to possible changes in working conditions or due to functional expansion requirements, each access device is switched to an extended accessory device, and the energy matrix may also be adjusted accordingly so that the energy transfer state between the input source device and the load device is always in a balanced state, enabling rapid switching of the energy matrix and avoiding risks of energy imbalance or overflow. Since the intelligent junction box is used as an access device and the inverter uniformly adjusts the energy matrix, the expandability of the access devices supported by the inverter is significantly improved, and the number or type of access devices is no longer limited.

[0068] Step 103: During the operation of the target working mode, detect whether the working condition changes. If it is detected that the working condition changes, execute Step 104.

[0069] Step 104: Adjust the energy transfer relationship to balance the energy transfer state between the input source device and the load device.

[0070] In specific implementation, the change of the working condition includes: during the energy transfer process between the input source device and the load device according to their respective target working modes, the load device no longer needs energy.

[0071] Take Figure 3 the change of the energy matrix shown as an example. The target inverter is connected to the photovoltaic power source PV, the battery, the mains power supply, the generator, and the charging pile. Among them, the target working mode of the battery is the self-use mode, and the target working mode of the charging pile is the priority charging mode. In such a target working mode, the energy matrix is: the battery and PV charge the charging pile according to the set power until the car is full. After the car is full, the working condition changes. At this time, the energy matrix is adjusted to: PV charges the battery, and the excess power is sent to the grid.

[0072] In specific implementation, the change of the working condition also includes: during the energy transfer process between the input source device and the load device according to their respective target working modes, the switching of different working states caused by the target working mode of the input source device.

[0073] For example, the target inverter is connected to the battery, the mains power supply, the generator, and the charging pile; the target working mode of the battery is the fixed-time charge and discharge mode, and the target working mode of the charging pile is the green power mode. In such a target working mode, the energy matrix is: PV + the grid charges the battery fixedly, and the remaining power charges the charging pile. When the working state of the battery changes to fixed discharge, the working condition changes, and the energy matrix is adjusted to: PV + the battery charges the charging pile, and the excess power is sent to the grid; when the battery is static, the working condition changes again, and the energy matrix is adjusted to: only PV charges the charging pile.

[0074] In specific implementation, the change of the working condition also includes: during the energy transfer process between the input source device and the load device according to their respective target working modes, the switching of different working states caused by the target working mode of the load device.

[0075] Take Figure 4Taking the change of the energy matrix shown as an example, the target inverter is connected to a battery, a mains power supply, a generator, a charging pile, and a heat pump. The target operating mode of the battery is the off-grid mode, and the target operating mode of the heat pump is the timed mode. In such a target operating mode, the energy matrix is as follows: the battery + PV + generator supply power to the heat pump within a fixed time period, and the generator only supplies power to the heat pump when the power is insufficient; when the heat pump stops timing and the working condition changes, the energy matrix is adjusted as follows: the generator is turned off, and PV charges the battery.

[0076] In the case of an abnormality in the input source device, since the working condition is abnormal, at this time, the energy transfer relationship is adjusted to balance the energy transfer state between the input source device and the load device, including:

[0077] Switch to other input source devices to adjust the energy transfer relationship and balance the energy transfer state between the input source device and the load device.

[0078] In specific implementation, the change of the working condition also includes the abnormality of the input source device.

[0079] Taking Figure 5 the change of the energy matrix shown as an example, the target inverter is connected to a battery, a mains power supply, a generator, a charging pile, and a heat pump. The target operating mode of the battery is the self-consumption mode, the target operating mode of the charging pile is the green power mode, and the target operating mode of the heat pump is the intelligent load mode in the timed mode. In such a target operating mode, the energy matrix is as follows: PV + battery supply power to the charging pile within a fixed time. When the grid-connected power of the surplus power is greater than the power required by the intelligent load mode, the heat pump is turned on. If there is still surplus power, it charges the charging pile. If there is still surplus power, it is sent to the grid; when the grid is abnormal (for example, power outage, equipment leakage, circuit breaker tripped, etc.), the working condition changes. At this time, it switches to generator power supply. PV + battery supply power to the charging pile within a fixed time. When the surplus power is greater than the power required by the intelligent load mode, the heat pump is turned on. If there is still surplus power, it charges the vehicle charging pile. If there is still surplus power, it reduces the battery power until the battery is full or the battery charging is completed, and reduces the PV power.

[0080] In specific implementation, the change of the working condition also includes switching each connected device from the target inverter to the extended accessory device. Correspondingly, the energy transfer relationship is adjusted to balance the energy transfer state between the input source device and the load device, including: in the case where each connected device needs to be switched from the target inverter to the extended accessory device, a shutdown command is sent to each connected device to trip each connected device and disconnect the energy transfer relationship, while the target inverter remains in the operating state.

[0081] Taking Figure 6Taking the change of the energy matrix shown as an example, the inverter cannot meet the access of more devices. It is necessary to add more devices through the intelligent junction box to meet the expansion requirements. Specifically, by automatically sending a shutdown command to each access device of the target inverter, the hardware of the access device is tripped to disconnect the energy matrix, so that relevant personnel can perform safety operations such as disconnecting the power line and disconnecting the communication line, and switch each access device from the inverter to the BI intelligent junction box, achieving the effect of ensuring the safety of personnel and the system without shutting down the inverter.

[0082] In specific implementation, the change of working conditions also includes the occurrence of transient energy shock. Correspondingly, adjust the energy transfer relationship to balance the energy transfer state between the input source device and the load device, including:

[0083] Switch to other input source devices, or adjust the energy configuration parameters of the load device to adjust the energy transfer relationship and balance the energy transfer state between the input source device and the load device.

[0084] The following combines several examples to illustrate the specific implementation method of adjusting the energy transfer relationship in the case of transient energy shock:

[0085] (1) When load devices such as charging piles, heat pumps, and intelligent loads stop transiently and there is a possibility of transient surge backflow, the battery is used as a large-capacity buffer device to receive transient charges to ensure the safety and stability of the energy matrix;

[0086] (2) When load devices such as charging piles, heat pumps, and intelligent loads output transient high power, and the user does not allow power to be taken from the grid and a backup power source is connected, the generator is used as a large-capacity buffer device to draw the energy gap to cope with transient changes;

[0087] (3) When load devices such as charging piles, heat pumps, and intelligent loads output transient high power, and the user connects to the grid to take power and there is no backup power source, the system uses the grid as a large-capacity buffer device to draw the energy gap to cope with transient changes;

[0088] (4) To cope with the transient change of the adjustable intelligent load power, when encountering an overload risk transiently, the load power will be adjusted step by step. For example, reducing the power of the vehicle charging pile, reducing the power of the heat pump, etc., which can not only ensure that the equipment does not shut down, but also safely pass through the transient risk, and the system energy scheduling control is more relaxed.

[0089] The above charging piles, heat pumps, and smart loads can all be used as devices with independent working modes, and are only used as examples of part of the present invention. When the operating conditions of the equipment change, the selected connected equipment changes, the mode switches, etc., the energy distribution can be dynamically adjusted through the adjustment of the multi-operating mode compatible energy matrix under the complex system, ensuring the compatible matching of the working modes between the various devices. The consistency of the inverter energy system automatically selects the controllable device as a transient emergency buffer. Each mode and working condition can be switched seamlessly during operation without power off and shutdown switching, and no potential hazards will occur.

[0090] Since the hardware can be actively and safely tripped to cut off the power when transient energy impact occurs, the access device can be switched without power outage while the system is running, ensuring the safety of personnel operation. It is especially suitable for complex systems, multiple access devices, multiple modes, and multiple working conditions. It has high safety and does not require additional complex settings. The user experience, security, and operation and maintenance efficiency are significantly improved.

[0091] The present invention meets the requirements of fast energy switching and fast mode compatibility for situations such as reconnecting or disconnecting an access device and needing to readjust energy, and provides a solution for safe and stable external access device switching of the inverter.

[0092] Embodiment 2

[0093] like Figure 7 As shown, this embodiment provides an energy regulating device, including:

[0094] An acquisition module 201 is used to acquire a target working mode set for each access device of a target inverter, where the access device includes at least one of an input source device, a load device, and an extended accessory device;

[0095] A determination module 202, configured to perform mode compatibility analysis on target working modes of each access device and determine an energy transfer relationship between each access device under the target working mode;

[0096] The adjustment module 203 is used to detect whether the working condition changes during the operation of the target working mode; when the working condition changes, the energy transfer relationship is adjusted to balance the energy transfer state between the input source device and the load device.

[0097] In a specific implementation, the input source device includes at least one of a mains power supply, a photovoltaic power supply, a battery, and a generator, or other clean energy sources; the load device includes at least one of a charging pile, a heat pump, and a smart load, and the extended accessory device includes a smart junction box for expanding the hardware functions of the target inverter, such as a BI (backup interface) smart junction box. The smart junction box can be connected to the input source device, the load device, other inverters, other extended accessory devices, etc. during use to achieve the expansion of the inverter hardware functions.

[0098] In some specific implementations, the energy regulation device of this embodiment further includes: a detection module for detecting the access devices supported by the target inverter and their functions; and obtaining the first working mode of the target inverter and the second working modes of each access device according to the access devices supported by the target inverter and their functions.

[0099] After the device is powered on and running, the system detects the software and hardware functions supported by the current target inverter, determines the access devices supported by it and their functions, obtains the working modes of the corresponding access devices according to the detection results, and at the same time obtains the working mode of the target inverter, so as to perform mode compatibility between the target inverter and its access devices later, and avoid abnormal operation of the energy system caused by mismatched configuration of their working modes.

[0100] In some specific implementations, the energy regulation device of this embodiment further includes: a matching module for obtaining the first working mode of the target inverter and the second working modes of each access device; and performing mode compatibility between the first working mode and each second working mode to make the energy configuration parameters of the first working mode match the energy configuration parameters of the second working mode.

[0101] This embodiment realizes description compatibility by matching the relevant energy configuration parameters of the working modes of the target inverter and each access device. The energy configuration parameters are, for example, power and timing periods.

[0102] In an example, the output power in the first working mode of the target inverter is 3 kw, and the required power in the second working mode of the charging pile is 5 kw. After mode compatibility processing, the output power in the first working mode of the target inverter is matched to the required power in the second working mode of the charging pile to ensure the normal operation of the charging pile and ensure energy balance.

[0103] In specific implementation, mode compatibility for the target working modes of each access device means that when the target inverter is connected to different access devices, based on the target working modes of the input source device and the load device set by the user, the energy flow direction between the input source device and the load device is determined, thereby determining the energy transfer relationship between the access devices in the target working mode. This energy transfer relationship is called the energy matrix.

[0104] In one example, the energy matrix is as Figure 2 shown. The inverter is connected to devices such as the mains power supply, generator, photovoltaic power supply, and intelligent junction box. A corresponding energy transfer relationship is formed among these devices according to the set target working mode.

[0105] During actual operation, since the working conditions may change or due to functional expansion requirements, the access devices are switched to extended accessory devices, and the energy matrix may also be adjusted accordingly, so that the energy transfer state between the input source device and the load device is always in a balanced state, enabling rapid switching of the energy matrix and avoiding the risk of energy imbalance or overflow. Since the intelligent junction box is used as an access device and the inverter uniformly adjusts the energy matrix, the expandability of the access devices supported by the inverter is significantly improved, and the number or type of access devices is no longer restricted.

[0106] In specific implementation, the change in working conditions includes: during the energy transfer process between the input source device and the load device according to their respective target working modes, the load device no longer requires energy.

[0107] Taking Figure 3 the change in the energy matrix shown as an example, the target inverter is connected to a photovoltaic power supply PV, a battery, the mains power supply, a generator, and a charging pile. Among them, the target working mode of the battery is the self-use mode, and the target working mode of the charging pile is the priority charging mode. In such a target working mode, the energy matrix is: the battery and PV charge the charging pile according to the set power until the car is fully charged. After the car is fully charged, the working conditions change. At this time, the energy matrix is adjusted to: PV charges the battery, and the excess power is sent to the grid.

[0108] In specific implementation, the change in working conditions also includes: during the energy transfer process between the input source device and the load device according to their respective target working modes, the switching between different working states caused by the target working mode of the input source device.

[0109] For example, the target inverter is connected to a battery, a mains power supply, a generator, and a charging pile; the target operating mode of the battery is the fixed-time charge and discharge mode, and the target operating mode of the charging pile is the green power mode. In such a target operating mode, the energy matrix is as follows: The PV + grid charges the battery fixedly, and the surplus power charges the charging pile. When the operating state of the battery changes to fixed discharge, the operating condition changes, and the energy matrix is adjusted to: PV + battery charges the charging pile, and the excess power is sent to the grid; when the battery is stationary, the operating condition changes again, and the energy matrix is adjusted to: Only PV charges the charging pile.

[0110] In specific implementation, the change of the operating condition also includes: During the energy transfer process between the input source device and the load device according to their respective target operating modes, the switching of different operating states caused by the target operating mode of the load device.

[0111] Take Figure 4 The change of the energy matrix shown as an example. The target inverter is connected to a battery, a mains power supply, a generator, a charging pile, and a heat pump; the target operating mode of the battery is the off-grid mode, and the target operating mode of the heat pump is the timing mode. In such a target operating mode, the energy matrix is as follows: The battery + PV + generator supply power to the heat pump within a fixed time period, and the generator only supplies power to the heat pump when the power is insufficient; when the heat pump stops timing, the operating condition changes, and at this time, the energy matrix is adjusted to: Turn off the generator, and PV charges the battery.

[0112] In the case of an abnormality of the input source device, since the operating condition is abnormal, at this time, the energy transfer relationship is adjusted to balance the energy transfer state between the input source device and the load device, including:

[0113] Switch to other input source devices to adjust the energy transfer relationship and balance the energy transfer state between the input source device and the load device.

[0114] In specific implementation, the change of the operating condition also includes the abnormality of the input source device.

[0115] Take Figure 5Taking the change of the energy matrix shown as an example, the target inverter is connected to a battery, the mains power supply, a generator, a charging pile, and a heat pump. The target operating mode of the battery is the self-use mode, the target operating mode of the charging pile is the green power mode, and the target operating mode of the heat pump is the intelligent load mode in the timed mode. In such a target operating mode, the energy matrix is as follows: PV + battery supply power to the charging pile within a fixed time. When the power fed into the grid from the surplus power is greater than the power required by the intelligent load mode, the heat pump is turned on. If there is still surplus power, it is used to charge the charging pile. If there is still surplus power, it is sent to the grid. When the grid is abnormal (for example, power outage, equipment leakage, circuit breaker tripped, etc.), the working condition changes. At this time, the power supply is switched to the generator. PV + battery supply power to the charging pile within a fixed time. When the surplus power is greater than the power required by the intelligent load mode, the heat pump is turned on. If there is still surplus power, it is used to charge the vehicle charging pile. If there is still surplus power, the battery power is reduced until the battery is full or the battery charging is completed, and the PV power is pulled down.

[0116] In specific implementation, the change of the working condition also includes switching each connected device from the target inverter to the extended accessory device. Correspondingly, the energy transfer relationship is adjusted to balance the energy transfer state between the input source device and the load device, including: in the case where each connected device needs to be switched from the target inverter to the extended accessory device, a shutdown command is sent to each connected device to trip each connected device and disconnect the energy transfer relationship, while the target inverter remains in the operating state.

[0117] Taking Figure 5 the change of the energy matrix shown as an example, the inverter cannot meet the access of more devices, and more devices need to be added through the intelligent junction box to meet the expansion requirements. Specifically, a shutdown command is automatically sent to each connected device of the target inverter to trip the hardware of the connected device and disconnect the energy matrix, so that relevant personnel can perform safety operations such as disconnecting the power line and disconnecting the communication line, and switch each connected device from the inverter to the BI intelligent junction box, achieving the effect of ensuring the safety of personnel and the system without shutting down the inverter.

[0118] In specific implementation, the change of the working condition also includes the occurrence of transient energy shock. Correspondingly, the energy transfer relationship is adjusted to balance the energy transfer state between the input source device and the load device, including:

[0119] Switching to other input source devices, or adjusting the energy configuration parameters of the load device to adjust the energy transfer relationship and balance the energy transfer state between the input source device and the load device.

[0120] The following describes the specific implementation methods of adjusting the energy transfer relationship in the case of transient energy shock in combination with several examples:

[0121] (1) When charging piles, heat pumps, smart loads and other load equipment stop transiently and there is a possibility of transient surge backflow, the battery is used as a large-capacity buffer device to receive transient charge to ensure the safety and stability of the energy matrix;

[0122] (2) When charging piles, heat pumps, smart loads and other load equipment have transient high-power outputs and users do not allow grid power to be drawn and access to backup power sources, the generator can be used as a large-capacity buffer device to fill the energy gap and cope with transient changes;

[0123] (3) When charging piles, heat pumps, smart loads and other load devices have transient high-power outputs and users access the grid to obtain power and there is no backup power supply, the system uses the grid as a large-capacity buffer device to fill the energy gap and cope with transient changes;

[0124] (4) To cope with transient changes in the power of adjustable intelligent loads, when there is a risk of overload, the load power will be adjusted in a step-by-step manner, such as reducing the power of car charging piles and heat pumps, etc. This ensures that the equipment does not stop and can safely survive transient risks, making system energy scheduling and control more relaxed.

[0125] The above charging piles, heat pumps, and smart loads can all be used as devices with independent working modes, and are only used as examples of some of the present invention. When the operating conditions of the equipment change, the selected connected equipment changes, the mode switches, etc., the energy distribution can be dynamically adjusted through the multi-operating mode compatible energy matrix adjustment under the complex system, ensuring the compatible matching of the working modes between the various devices. The consistency of the inverter energy system automatically selects the controllable device as a transient emergency buffer. Each mode and working condition can be switched seamlessly during operation without power off and shutdown switching, and no potential hazards will occur.

[0126] Since the hardware can be actively and safely tripped to cut off the power when transient energy impact occurs, the access device can be switched without power outage while the system is running, ensuring the safety of personnel operation. It is especially suitable for complex systems, multiple access devices, multiple modes, and multiple working conditions. It has high safety and does not require additional complex settings. The user experience, security, and operation and maintenance efficiency are significantly improved.

[0127] The present invention meets the requirements of fast energy switching and fast mode compatibility for situations such as reconnecting or disconnecting an access device and needing to readjust energy, and provides a solution for safe and stable external access device switching of the inverter.

[0128] It is worth mentioning that each module involved in this embodiment is a logical module. In practical applications, a logical unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, units that are not closely related to solving the technical problems proposed by the present invention are not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.

[0129] Embodiment Three

[0130] This embodiment provides an inverter, including:

[0131] At least one processor; and,

[0132] A memory communicatively connected to the at least one processor; wherein,

[0133] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the energy regulation method of the above embodiment.

[0134] Wherein, the memory and the processor are connected by a bus. The bus can include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors and the memory together. The bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be an element or multiple elements, such as multiple receivers and transmitters, and provides a unit for communicating with various other devices on the transmission medium. The data processed by the processor is transmitted on the wireless medium through the antenna. Further, the antenna also receives data and transmits the data to the processor.

[0135] The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. And the memory can be used to store the data used by the processor when executing operations.

[0136] Figure 8 A schematic diagram of the embedded software and hardware platform is provided. The method or device in the above embodiment can be implemented as a computer program to be compatible with the energy matrix control unit and applied to the embedded operating system of the inverter. Specifically, the inverter is used as a hardware computer platform, and an embedded operating system is embedded on this hardware platform, and the multiple working modes of the multiple access devices supported are matched with the working mode of the inverter.

[0137] Embodiment Four

[0138] This embodiment provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the energy regulation method of the above embodiment.

[0139] Those skilled in the art can understand that all or part of the steps in implementing the methods of the above embodiments can be completed by instructing relevant hardware through a program. This program is stored in a storage medium and includes several instructions to enable a device (which can be a single-chip microcomputer, a chip, etc.) or a processor to execute all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: various media that can store program codes such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs.

[0140] In one example, it can be achieved through Figure 9 the flowchart shown, which, when executed, implements the energy regulation method of the above embodiment, including: identifying the software and hardware functions supported by the inverter device; determining whether to select the corresponding mode, and updating the working mode and energy matrix of the device according to the selected mode; determining whether a working condition change occurs. If so, updating the working mode and energy matrix of the device, otherwise operating the matching mode using the energy matrix data and control strategy.

[0141] It can be understood that those skilled in the art can, under the guidance of the above embodiments, combine various implementation manners in the above various embodiments to obtain technical solutions of multiple implementation manners.

[0142] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy regulation method, characterized in that: include: Obtaining a target working mode set for each access device of the target inverter, wherein the access device includes at least one of an input source device, a load device, and an extended accessory device; Performing mode compatibility on target working modes of each access device, and determining an energy transfer relationship between each access device under the target working mode; Detecting whether the operating conditions have changed during the operation of the target operating mode; When a change in the working condition is detected, the energy transfer relationship is adjusted to balance the energy transfer state between the input source device and the load device.

2. The energy regulation method according to claim 1, characterized in that: Also includes: Acquire a first working mode of the target inverter and a second working mode of each access device; The first working mode is made compatible with each of the second working modes so that energy configuration parameters of the first working mode match energy configuration parameters of the second working mode.

3. The energy regulation method according to claim 2, characterized in that: Also includes: Detect the access devices and their functions supported by the target inverter; According to the access devices supported by the target inverter and their functions, the first working mode of the target inverter and the second working mode of each access device are acquired.

4. The energy regulation method according to claim 1, characterized in that: The input source device includes at least one of a mains power supply, a photovoltaic power supply, a battery and a generator; the load device includes at least one of a charging pile, a heat pump and a smart load; and the extended accessory device includes a smart junction box for expanding the hardware functions of the target inverter.

5. The energy regulation method according to claim 4, characterized in that: The situation where the working condition changes includes abnormality of the input source device; Adjusting the energy transfer relationship to balance the energy transfer state between the input source device and the load device includes: Switch to other input source devices to adjust the energy transfer relationship so that the energy transfer state between the input source device and the load device is balanced.

6. The energy regulation method according to claim 4, characterized in that: The situation where the working condition changes includes switching each access device from the target inverter to the extended accessory device; Adjusting the energy transfer relationship to balance the energy transfer state between the input source device and the load device includes: A shutdown command is sent to each access device to trip each access device and disconnect the energy transfer relationship, while the target inverter remains in operation.

7. The energy regulation method according to claim 4, characterized in that: The situation where the working condition changes includes the occurrence of transient energy impact; Adjusting the energy transfer relationship to balance the energy transfer state between the input source device and the load device includes: Switch to other input source devices, or adjust the energy configuration parameters of the load device to adjust the energy transfer relationship so that the energy transfer state between the input source device and the load device is balanced.

8. An energy regulating device, characterized in that: include: An acquisition module, used to acquire a target working mode set for each access device of the target inverter, wherein the access device includes at least one of an input source device, a load device, and an extended accessory device; A determination module, used to perform mode compatibility on a target working mode of each access device and determine an energy transfer relationship between each access device under the target working mode; A regulating module, used to detect whether the working condition changes during the operation of the target working mode; When a change in the working condition is detected, the energy transfer relationship is adjusted to balance the energy transfer state between the input source device and the load device.

9. An inverter, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the energy regulation method according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the energy regulation method according to any one of claims 1 to 7 is implemented.

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