Method for determining output trend of power controller and terminal

Abstract

The application provides a power controller output trend judgment method and a terminal. First, the actual value of the power controller obtained through detection is compared with a preset steady state interval. If the actual value falls into the preset steady state interval, it indicates that the actual value obtained through detection meets the target expectation and is in a steady state and meets the expectation. If the actual value does not fall into the preset steady state interval, the change slope of the actual value is compared with a preset slope interval for judgment, that is, the change trend of the actual value is dynamically evaluated, the response time is considered, the time difference caused by the target expectation is avoided to cause the misjudgment of the actual value, the output condition of the power controller is truly reflected, the fluctuation of the electrical property data is dynamically processed, and thus the new type of energy storage battery and the charging technology are quickly adapted.

Description

Technical Field

[0001] This invention relates to the field of energy storage, and in particular to a method and terminal for judging the output trend of a power controller. Background Technology

[0002] With the development of new energy sources, the number of people choosing to purchase new energy vehicles is gradually increasing. Before buying a new energy vehicle, users mainly focus on three aspects: first, safety; second, driving range per charge; and third, charging speed. To address these three aspects, major manufacturers are constantly innovating in energy storage batteries to increase the capacity per unit volume while solving structural safety issues and ensuring battery lifespan during cycle use. In this process, power controllers are needed to adapt to various new high-capacity batteries and charging technologies.

[0003] During use, the power controller must closely monitor the electrical data during transmission, analyze the changing trends of the detected actual values, and compare them with the established target values ​​to observe whether they fall within the expected target range. However, in existing technologies, simply relying on judging whether the actual value is close to the target value can lead to misjudgment because the target value ignores the changing trends of the actual data, resulting in a mismatch between the target value and the actual value due to time factors. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method and terminal for judging the output trend of a power controller, so as to avoid the influence caused by the time difference between the target and actual data.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A method for determining the output trend of a power controller, comprising the following steps:

[0007] S1. Detect the electrical data output by the power controller according to the preset frequency and obtain the actual value;

[0008] S2. Compare the actual value with the preset steady-state range. If the actual value falls within the preset range, it is determined that the power controller output trend meets expectations; otherwise, proceed to step S3.

[0009] The preset steady-state range is determined based on the on / off state of the energy storage module controlled by the power controller and the requested output value of the energy storage module.

[0010] S3. Based on the obtained first preset number of actual values, calculate the slope of the change of the actual values. If the continuous slope of the change falls within the preset slope range, it is determined that the output trend of the power controller meets the expectations; otherwise, it is determined that the output trend of the power controller does not meet the expectations.

[0011] To solve the above-mentioned technical problems, another technical solution adopted by the present invention is as follows:

[0012] A power controller output trend determination terminal includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it performs the following steps:

[0013] S1. Detect the electrical data output by the power controller according to the preset frequency and obtain the actual value;

[0014] S2. Compare the actual value with the preset steady-state range. If the actual value falls within the preset range, it is determined that the power controller output trend meets expectations; otherwise, proceed to step S3.

[0015] The preset steady-state range is determined based on the on / off state of the energy storage module controlled by the power controller and the requested output value of the energy storage module.

[0016] S3. Based on the obtained first preset number of actual values, calculate the slope of the change of the actual values. If the continuous slope of the change falls within the preset slope range, it is determined that the output trend of the power controller meets the expectations; otherwise, it is determined that the output trend of the power controller does not meet the expectations.

[0017] The beneficial effects of this invention are as follows: It provides a method and terminal for judging the output trend of a power controller. First, the actual value of the power controller obtained by detection is compared with a preset steady-state range. If it falls into the preset steady-state range, it means that the actual value obtained by detection meets the target expectation and is in a stable state, thus satisfying the expectation. If it does not fall into the preset steady-state range, the slope of the change of the actual value is compared with the preset slope range for judgment. That is, dynamic evaluation is carried out in combination with the change trend of the actual value, avoiding misjudgment of the actual value due to the time difference in the setting of the target expectation, truly reflecting the output of the power controller, dynamically handling the fluctuation of electrical data, and thus quickly adapting to new energy storage batteries and charging technologies. Attached Figure Description

[0018] Figure 1 Here is a flowchart of a method for determining the output trend of a power controller according to an embodiment of the present invention:

[0019] Figure 2 This is a flowchart illustrating the slope discrimination in a method for determining the output trend of a power controller according to an embodiment of the present invention.

[0020] Figure 3 This is a flowchart illustrating the electrical data discrimination process in a power controller output trend determination method according to an embodiment of the present invention.

[0021] Figure 4This is a flowchart of a steady-state determination method for a power controller output trend determination method according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of a power controller output trend determination terminal according to an embodiment of the present invention:

[0023] Label Explanation:

[0024] 1. A terminal for judging the output trend of a power controller; 2. Memory; 3. Processor. Detailed Implementation

[0025] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0026] Please refer to Figures 1 to 4 A method for determining the output trend of a power controller, comprising the following steps:

[0027] S1. Detect the electrical data output by the power controller according to the preset frequency and obtain the actual value;

[0028] S2. Compare the actual value with the preset steady-state range. If the actual value falls within the preset steady-state range, it is determined that the power controller output trend meets expectations; otherwise, proceed to step S3.

[0029] The preset steady-state range is determined based on the on / off state of the energy storage module controlled by the power controller and the requested output value of the energy storage module.

[0030] S3. Based on the obtained first preset number of actual values, calculate the slope of the change of the actual values. If the continuous slope of the change falls within the preset slope range, it is determined that the output trend of the power controller meets the expectations; otherwise, it is determined that the output trend of the power controller does not meet the expectations.

[0031] As can be seen from the above description, the beneficial effects of the present invention are as follows: It provides a method and terminal for judging the output trend of a power controller. First, the actual value of the power controller obtained by detection is compared with a preset steady-state range. If it falls into the preset steady-state range, it means that the actual value obtained by detection meets the target expectation and is in a stable state, thus satisfying the expectation. If it does not fall into the preset steady-state range, the slope of the change of the actual value is compared with the preset slope range for judgment. That is, dynamic evaluation is carried out in combination with the change trend of the actual value to avoid misjudgment of the actual value due to the time difference in the target expectation setting, truly reflect the output of the power controller, dynamically handle the fluctuation of electrical data, and thus quickly adapt to new energy storage batteries and charging technologies.

[0032] It should be noted that the electrical data of the power controller is DC; and each time an external power supply request occurs, a preset steady-state range is established based on the power supply system's on / off status and the requested value. During the entire power transmission process, the preset steady-state range generally tends to stabilize, meaning that the preset steady-state range is an evaluation standard for the power controller's output trend that approaches static conditions.

[0033] In some embodiments of the present invention, step S3 specifically includes:

[0034] S31. Count the number of detections for the first preset quantity and the actual output value for each time;

[0035] S32. Calculate the correction value corresponding to the actual output value for each time using the weighted average method;

[0036] S33. Calculate the slope between adjacent correction values ​​as the slope of the corresponding actual value change.

[0037] S34. Determine whether the continuous slope of change falls within the preset slope range. If yes, the power controller output trend is considered to meet expectations; otherwise, the power controller output trend is considered to not meet expectations.

[0038] As can be seen from the above description, due to the loss or detection errors of the actual values ​​obtained by detection, the actual values ​​obtained by detection according to the preset frequency are generally presented as discrete data sequences. Since the time intervals between discrete data are different, there are errors in the calculation of the slope of change of each actual value. For example, the trend of the actual value of the detected electrical data is that the current increases by 1A per second, but the detection data of the third second is lost, which causes the slope of change of the data of the second and fourth seconds to suddenly surge.

[0039] To address the impact of time intervals on discrete data sequences, a weighted average method is used to correct each actual value. Then, the slope of change between adjacent corrected values ​​is calculated. For example, in this case, the fifth actual value in the detection data is corrected. Using the fifth actual value as the center, a weighted average of seven previous and subsequent detection values ​​is calculated, and this average is used as the correction value for the fifth actual value. This process is repeated to obtain the correction value for each actual value, and the slope of change is calculated based on the correction value corresponding to each detection. Subsequently, the slope of change is compared with a preset slope range. If the slope of change falls within the preset slope range for a fixed number of consecutive times, the power controller output trend is considered to meet expectations, even if the power controller output trend does not fall within the aforementioned preset steady-state range.

[0040] In some embodiments of the present invention, step S34 specifically includes:

[0041] Determine whether the slope of the second consecutive preset number of changes falls within a preset slope range. If so, the power controller output trend is considered to meet expectations. If not, the power controller output trend is considered to not meet expectations, and the last slope of change that does not fall within the preset slope range is regarded as the power controller output trend.

[0042] As described above, in order to comprehensively evaluate the output trend of the power controller and avoid misjudgment caused by dynamic fluctuations, the slope of the second preset number of changes is continuously counted to see if it falls within the preset slope range. That is, the actual value with fluctuations is not judged individually, but is comprehensively evaluated by including the electrical data of a continuous segment of the current test. If the slope of the actual value of this continuous segment falls within the preset slope range, the fluctuation of the power controller in this segment is considered to be within an acceptable range and is still considered to meet expectations. However, if there is a slope outside the preset slope range in this segment, it is considered not to meet expectations, and the last slope that does not fall within the preset slope range is regarded as the output trend of the power controller.

[0043] In some embodiments of the present invention, step S2 further includes:

[0044] A preset steady-state range is determined based on the on / off state of the energy storage module controlled by the power controller and the requested output value of the energy storage module.

[0045] As described above, since the power controller is adapted to different energy storage modules, the output power and output process characteristics of each energy storage module are different. At the same time, there are also various differences in external demands. Therefore, the setting of the preset steady-state range needs to take into account both of the above factors. For example, if a certain energy storage module receives a vehicle-side request for charging parameters of 100A, after comprehensive consideration, the preset steady-state range is set between 99A and 101A. If the electrical data output by the power controller falls within the above range, it is considered to meet expectations. Or, if the current requested is 1A, the preset steady-state range is set between 0.6A and 1.4A. That is, a preset steady-state range needs to be set separately for different requested output values.

[0046] In some embodiments of the present invention, the electrical data is voltage or current.

[0047] As can be seen from the above description, since the power controller regulates a variety of electrical parameters and the power output method includes a variety of methods (such as constant current charging method, constant voltage charging method, and hybrid charging method), in order to facilitate the evaluation of the output trend of the power controller, the inventors discovered through experiments that it is only necessary to evaluate either the voltage or the current in the electrical data. That is, as long as either the voltage or the current conforms to the steady state or the dynamic fluctuation falls within the preset slope range, the output trend of the power controller can be considered to meet expectations, thus simplifying the evaluation process.

[0048] Please refer to Figure 5 A power controller output trend determination terminal 1 includes a memory 2, a processor 3, and a computer program stored in the memory 2 and executable on the processor 3. When the processor 3 executes the computer program, it performs the following steps:

[0049] S1. Detect the electrical data output by the power controller according to the preset frequency and obtain the actual value;

[0050] S2. Compare the actual value with the preset steady-state range. If the actual value falls within the preset steady-state range, it is determined that the power controller output trend meets expectations; otherwise, proceed to step S3.

[0051] The preset steady-state range is determined based on the on / off state of the energy storage module controlled by the power controller and the requested output value of the energy storage module.

[0052] S3. Based on the obtained first preset number of actual values, calculate the slope of the change of the actual values. If the continuous slope of the change falls within the preset slope range, it is determined that the output trend of the power controller meets the expectations; otherwise, it is determined that the output trend of the power controller does not meet the expectations.

[0053] As described above, an execution terminal for a method to determine the output trend of a power controller is provided. When executing the above method, the actual value of the power controller obtained by detection is first compared with a preset steady-state range. If it falls within the preset steady-state range, it indicates that the actual value obtained by detection meets the target expectation and is in a stable state, thus satisfying the expectation. If it does not fall within the preset steady-state range, the slope of the change of the actual value is compared with a preset slope range for judgment. That is, dynamic evaluation is performed by combining the change trend of the actual value to avoid misjudgment of the actual value due to the time difference in the target expectation setting, truly reflect the output of the power controller, dynamically handle the fluctuation of electrical data, and thus quickly adapt to new energy storage batteries and charging technologies.

[0054] In some embodiments of the present invention, step S3 specifically includes:

[0055] S31. Count the number of detections for the first preset quantity and the actual output value for each time;

[0056] S32. Calculate the correction value corresponding to the actual output value for each time using the weighted average method;

[0057] S33. Calculate the slope between adjacent correction values ​​as the slope of the corresponding actual value change.

[0058] S34. Determine whether the continuous slope of change falls within the preset slope range. If yes, the power controller output trend is considered to meet expectations; otherwise, the power controller output trend is considered to not meet expectations.

[0059] As described above, to address the impact of time intervals on discrete data sequences, a weighted average method is used to correct each actual value. Then, the slope of change between adjacent corrected values ​​is calculated. For example, in this case, the fifth actual value in the detection data is corrected. Using the fifth actual value as the center, a weighted average of seven previous and subsequent detection values ​​is calculated, and this average is used as the correction value for the fifth actual value. This process is repeated to obtain the correction value for each actual value, and the slope of change is calculated based on the correction value corresponding to each detection. Subsequently, the slope of change is compared with a preset slope range. If the slope of change falls within the preset slope range for a fixed number of consecutive times, the power controller output trend is considered to meet expectations, even if the power controller output trend does not fall within the aforementioned preset steady-state range.

[0060] In some embodiments of the present invention, step S34 specifically includes:

[0061] Determine whether the slope of the second consecutive preset number of changes falls within a preset slope range. If so, the power controller output trend is considered to meet expectations. If not, the power controller output trend is considered to not meet expectations, and the last slope of change that does not fall within the preset slope range is regarded as the power controller output trend.

[0062] As described above, in order to comprehensively evaluate the output trend of the power controller and avoid misjudgment caused by dynamic fluctuations, the slope of the second preset number of changes is continuously counted to see if it falls within the preset slope range. That is, the actual value with fluctuations is not judged individually, but is comprehensively evaluated by including the electrical data of a continuous segment of the current test. If the slope of the actual value of this continuous segment falls within the preset slope range, the fluctuation of the power controller in this segment is considered to be within an acceptable range and is still considered to meet expectations. However, if there is a slope outside the preset slope range in this segment, it is considered not to meet expectations, and the last slope that does not fall within the preset slope range is regarded as the output trend of the power controller.

[0063] In some embodiments of the present invention, step S2 further includes:

[0064] A preset steady-state range is determined based on the on / off state of the energy storage module controlled by the power controller and the requested output value of the energy storage module.

[0065] As described above, since the power controller is adapted to different energy storage modules, the output power and output process characteristics of each energy storage module are different. At the same time, there are also various differences in external demands. Therefore, the setting of the preset steady-state range needs to take into account both of the above factors. For example, if a certain energy storage module receives a vehicle-side request for charging parameters of 100A, after comprehensive consideration, the preset steady-state range is set between 99A and 101A. If the electrical data output by the power controller falls within the above range, it is considered to meet expectations. Or, if the current requested is 1A, the preset steady-state range is set between 0.6A and 1.4A. That is, a preset steady-state range needs to be set separately for different requested output values.

[0066] In some embodiments of the present invention, the electrical data is voltage or current.

[0067] As can be seen from the above description, since the power controller regulates a variety of electrical parameters and the power output method includes a variety of methods (such as constant current charging method, constant voltage charging method, and hybrid charging method), in order to facilitate the evaluation of the output trend of the power controller, the inventors discovered through experiments that it is only necessary to evaluate either the voltage or the current in the electrical data. That is, as long as either the voltage or the current conforms to the steady state or the dynamic fluctuation falls within the preset slope range, the output trend of the power controller can be considered to meet expectations, thus simplifying the evaluation process.

[0068] This invention provides a method and terminal for determining the output trend of a power controller, mainly used to determine the output trend of the power controller of an energy storage battery or system. The following is a detailed description with reference to embodiments:

[0069] Please refer to Figure 1 Embodiment 1 of the present invention is as follows:

[0070] A method for determining the output trend of a power controller, comprising the following steps:

[0071] S1. Detect the electrical data output by the power controller according to the preset frequency and obtain the actual value;

[0072] S2. Compare the actual value with the preset steady-state range. If the actual value falls within the preset steady-state range, it is determined that the power controller output trend meets expectations; otherwise, proceed to step S3.

[0073] That is, by comparing the actual value of the power controller obtained by detection with the preset steady-state range, if it falls within the preset steady-state range, it means that the actual value obtained by detection meets the target expectation and is in a steady state, thus satisfying the expectation; otherwise, proceed to the subsequent judgment process.

[0074] S3. Based on the obtained first preset number of actual values, calculate the slope of the change of the actual values. If the continuous slope of the change falls within the preset slope range, it is determined that the output trend of the power controller meets the expectations; otherwise, it is determined that the output trend of the power controller does not meet the expectations.

[0075] If the actual output value of the power controller does not fall into the preset steady-state range, the slope of the actual value change is compared with the preset slope range. In other words, dynamic evaluation is carried out by combining the trend of the actual value change, avoiding misjudgment of the actual value due to the time difference of the target expectation, truly reflecting the output of the power controller, dynamically handling the fluctuation of electrical data, and thus quickly adapting to new energy storage batteries and charging technologies.

[0076] Please refer to Figures 1 to 3 Embodiment 2 of the present invention is as follows: Based on Embodiment 1, step S3 specifically includes:

[0077] S31. Count the number of detections for the first preset quantity and the actual output value for each time;

[0078] S32. Calculate the correction value corresponding to the actual output value for each time using the weighted average method;

[0079] S33. Calculate the slope between adjacent correction values ​​as the slope of the corresponding actual value change.

[0080] S34. Determine whether the continuous slope of change falls within the preset slope range. If yes, the power controller output trend is considered to meet expectations; otherwise, the power controller output trend is considered to not meet expectations.

[0081] In order to address the impact of time intervals on discrete data sequences, a weighted average method is used to correct each actual value, and then the slope of change between adjacent corrected values ​​is calculated.

[0082] For example: In this test, the actual value of the fifth digit in the test data is corrected. Taking the fifth actual value as the center, the weighted average of the actual values ​​of the test before and after the test is calculated. The average value is used as the correction value of the fifth actual value. This process is repeated to obtain the correction value of each actual value. The slope of change is calculated by obtaining the correction value corresponding to the actual value of each test. The slope of change is then compared with the preset slope range. If the slope of change falls within the preset slope range for a fixed number of consecutive tests, the output trend of the power controller is considered to meet the expectations, even if the output trend of the power controller does not fall within the preset steady-state range.

[0083] Preferably, step S34 specifically includes:

[0084] Determine whether the slope of the second consecutive preset number of changes falls within the preset slope range. If it does, the power controller output trend is considered to meet expectations. If not, the power controller output trend is considered to not meet expectations, and the slope of the last position that does not fall within the preset slope range is regarded as the power controller output trend.

[0085] In order to comprehensively evaluate the output trend of the power controller and avoid misjudgment caused by dynamic fluctuations, the slope of the second preset number of changes is continuously counted to see if it falls within a preset slope range. That is, the actual value with fluctuations is not judged in isolation, but is comprehensively evaluated by including the electrical data of a continuous segment of the current test. If the slope of the actual value of this continuous segment falls within the preset slope range, the fluctuation of the power controller in this segment is considered to be within an acceptable range and still in line with expectations. However, if there is a slope outside the preset slope range in this segment, it is considered not to meet expectations, and the last slope that does not fall within the preset slope range is regarded as the output trend of the power controller.

[0086] Specifically, to facilitate the presentation of the power controller's output trend, if the final slope of a certain segment is positive and does not fall within the preset slope range, the power controller's output trend is considered to be in a downward state; if the final slope of a certain segment is negative and does not fall within the preset slope range, the power controller's output trend is considered to be in an upward state, making it easier for technicians to quickly obtain data information.

[0087] Please refer to Figures 1 to 3 Embodiment 3 of the present invention is as follows: Based on Embodiment 1, step S2 further includes:

[0088] A preset steady-state range is determined based on the on / off state of the energy storage module controlled by the power controller and the requested output value of the energy storage module.

[0089] For example, if a certain energy storage module receives a charging request parameter of 100A from the vehicle, after comprehensive consideration, the preset steady-state range is set to 99A-101A. If the electrical data output by the power controller falls within the above range, it is considered to meet expectations. Alternatively, if the current requested is 1A, the preset steady-state range is set to 0.6A-1.4A. That is, a preset steady-state range needs to be set for different requested output values.

[0090] Preferably, in order to present the output trend of the power controller in a steady state, the difference between the requested output value and the set deviation value related to this transmission is used as the presentation data, and the minimum difference of a segment is taken as the trend reflection of the steady state of this segment.

[0091] Please refer to Figures 1 to 4The fourth embodiment of the present invention is as follows: Based on the first embodiment, since the power controller regulates multiple electrical parameters and the power output method includes multiple methods (such as constant current charging method, constant voltage charging method, and hybrid charging method), in order to facilitate the evaluation of the output trend of the power controller, it is only necessary to evaluate either the voltage or the current in the electrical data. That is, as long as either the voltage or the current conforms to the steady state or the dynamic fluctuation falls within the preset slope range, it can be considered that the output trend of the power controller meets the expectations, thus simplifying the evaluation process.

[0092] Please refer to Figure 5 The fifth embodiment of the present invention is: a power controller output trend judgment terminal 1, including a memory 2, a processor 3, and a computer program stored in the memory 2 and run on the processor 3. When the processor 3 executes the computer program, it completes the steps in any of the power controller output trend judgment methods in the first to fourth embodiments described above.

[0093] In summary, the present invention provides a method and terminal for judging the output trend of a power controller. First, the actual value of the power controller obtained by detection is compared with a preset steady-state range. If it falls within the preset steady-state range, it indicates that the actual value obtained by detection meets the target expectation and is in a stable state, thus satisfying the expectation. If it does not fall within the preset steady-state range, the slope of the actual value change is compared with a preset slope range for judgment. That is, dynamic evaluation is performed by combining the change trend of the actual value, taking into account the response time, avoiding misjudgment of the actual value due to the time difference set in the target expectation, truly reflecting the output of the power controller, dynamically handling the fluctuation of electrical data, and thus quickly adapting to new energy storage batteries and charging technologies.

[0094] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention's specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method of determining an output trend of a power controller, the method comprising: The method comprises the steps of: ​ S1, detecting electrical data output by a power controller according to a preset frequency, and obtaining an actual value; S2, comparing the actual value with a preset steady state interval, if the actual value falls within the preset steady state interval, it is determined that the output trend of the power controller meets the expectation; otherwise, step S3 is entered; The preset steady state interval is formulated according to the on-off state of the energy storage module controlled by the power controller and the requested output value of the energy storage module; S3, calculating the change slope of the actual value according to a first preset number of actual values obtained, if the continuous change slopes fall within a preset slope interval, it is determined that the output trend of the power controller meets the expectation; otherwise, it is determined that the output trend of the power controller does not meet the expectation; The step S3 specifically comprises: S31, counting the detection times of the first preset number and the actual value output each time; S32, calculating a correction value corresponding to the actual value output each time by using a weighted average method; S33, counting the slope between adjacent correction values as the change slope of the corresponding actual value; S34, judging whether the continuous change slopes fall within the preset slope interval, if yes, it is determined that the output trend of the power controller meets the expectation; if no, it is determined that the output trend of the power controller does not meet the expectation.

2. The method of claim 1, wherein: The step S34 specifically comprises: Judging whether the continuous change slopes of a second preset number fall within the preset slope interval, if yes, it is determined that the output trend of the power controller meets the expectation; if no, it is determined that the output trend of the power controller does not meet the expectation, and the change slope of the last bit not falling within the preset slope interval is regarded as the output trend of the power controller.

3. The method for determining the output trend of a power controller according to claim 1, characterized in that: The electrical data is voltage or current.

4. A power controller output trend determination terminal, characterized by: The computer program stored in the memory and executable on the processor comprises the following steps: S1, detecting electrical data output by a power controller according to a preset frequency, and obtaining an actual value; S2, comparing the actual value with a preset steady state interval, if the actual value falls within the preset steady state interval, it is determined that the output trend of the power controller meets the expectation; otherwise, step S3 is entered; The preset steady state interval is formulated according to the on-off state of the energy storage module controlled by the power controller and the requested output value of the energy storage module; S3, calculating the change slope of the actual value according to a first preset number of actual values obtained, if the continuous change slopes fall within a preset slope interval, it is determined that the output trend of the power controller meets the expectation; otherwise, it is determined that the output trend of the power controller does not meet the expectation; The step S3 specifically comprises: S31, counting the detection times of the first preset number and the actual value output each time; S32, calculating a correction value corresponding to the actual value output each time by using a weighted average method; S33, counting the slope between adjacent correction values as the change slope of the corresponding actual value; S34, judging whether the continuous change slopes fall within the preset slope interval, if yes, it is determined that the output trend of the power controller meets the expectation; if no, it is determined that the output trend of the power controller does not meet the expectation.

5. The power controller output trend determination terminal of claim 4, wherein: The step S34 specifically comprises: determining whether the continuous second preset number of the change slopes falls into a preset slope interval, if yes, it is determined that the output trend of the power controller meets the expectation, if not, it is determined that the output trend of the power controller does not meet the expectation, and the last change slope not falling into the preset slope interval is regarded as the output trend of the power controller.

6. The power controller output trend determination terminal of claim 4, wherein: The electrical data is voltage or current.

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