Multi-phase electric energy meter and split-phase electric energy pulse distribution method and device thereof

Abstract

The invention discloses a multi-phase electric energy meter and a split-phase electric energy pulse distribution method and device thereof, and the method comprises the steps: obtaining a voltage sampling signal of each phase and a current sampling signal of each phase through an energy storage energy management unit, and carrying out the split-phase electric energy pulse distribution of each phase according to the voltage sampling signal of each phase and the current sampling signal of each phase; calculating and outputting a combined-phase total electric energy pulse increment and each split-phase electric energy pulse increment in a preset time period; the micro-control unit obtains the total phase-combining electric energy pulse increment and the electric energy pulse increment of each split phase, and determines the number of the redistributed electric energy pulses of each split phase according to the total phase-combining electric energy pulse increment and the electric energy pulse increment of each split phase. According to the invention, the accurate split-phase electric energy pulse increment calculated in advance in the energy storage energy management unit is used as a basis for distributing the combined-phase total electric energy pulse increment to each split-phase electric energy pulse, so that the problem of distortion of electric energy metering in phase and direction is solved from the root of time sequence; the electric energy pulse output result of the electric energy meter completely corresponds to the electric energy metering value of the electric energy meter, and the accuracy of the split-phase electric energy metering result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy metering, and in particular to a multi-phase electric energy meter and a method and device for distributing phase-splitting electric energy pulses. Background Art

[0002] The existing method for distributing phase-based electric energy pulses of a multi-phase electric energy meter usually utilizes the energy storage energy management unit of the multi-phase electric energy meter to obtain the voltage sampling signal and the current sampling signal of each phase, and then calculates the instantaneous power of each phase according to the absolute value of the three-phase instantaneous power and the time integral output; then the microcontroller obtains the instantaneous power of each phase, integrates the instantaneous power of each phase, and determines the increment of the electric energy pulse of each phase, which serves as the basis for the weight of the electric energy pulse number distributed to each phase through the total electric energy pulse increment of the combined phase.

[0003] However, the applicant found that since the instantaneous power of each phase will change within the preset unit sampling time, the instantaneous power of each phase obtained by the microcontroller unit deviates from the actual instantaneous power of each phase, which leads to inaccurate increments of electric energy pulses calculated by the microcontroller unit, and thus inaccurate numbers of electric energy pulses allocated to each phase, reducing the authenticity of the phase electric energy metering results of the phase electric energy pulse allocation method. For example, the energy storage energy management collects the A-phase voltage sampling signal and the A-phase current sampling signal at the 1st second, calculates the instantaneous power of the A-phase at the 1st second, and outputs it to the microcontroller unit, which is used by the microcontroller unit as the power for electric energy pulse integration. However, during the period from the 1st second to the 2nd second, the instantaneous power of the A-phase is likely to change, resulting in an error between the increment of the A-phase electric energy pulse calculated by the microcontroller unit and the actual increment of the A-phase electric energy pulse. Therefore, in power consumption scenarios where the load power consumption amplitude and direction change rapidly, the numerical results of the phase electric energy metering calculated by the existing multi-phase electric energy meter in terms of phase attribution and direction attribution are not accurate.

[0004] On the other hand, opening a separate integral timer in the microcontroller unit and adding various power types for integration and calculation to obtain the increment of each phase electric energy pulse increases the overall operating load of the microcontroller unit and reduces the overall performance of the product. Summary of the invention

[0005] The embodiment of the present invention provides a multi-phase electric energy meter and a method and device for allocating phase electric energy pulses thereof, so as to solve the problem of accuracy of the phase electric energy metering results of the existing phase electric energy pulse distribution method.

[0006] In one embodiment, a method for distributing split-phase electric energy pulses of a multi-phase electric energy meter is provided. The multi-phase electric energy meter includes a micro control unit and an energy storage energy management unit. The method for distributing split-phase electric energy pulses includes the following methods: The energy storage energy management unit obtains the voltage sampling signal of each phase and the current sampling signal of each phase, and calculates and outputs the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase within a preset time period according to the voltage sampling signal of each phase and the current sampling signal of each phase; The total combined-phase electric energy pulse increment and the each-phase electric energy pulse increment are obtained by the microcontroller unit, and the number of each-phase electric energy pulse to be redistributed is determined according to the total combined-phase electric energy pulse increment and the each-phase electric energy pulse increment.

[0007] In one embodiment, the step of calculating and outputting the total combined-phase electric energy pulse increment and each phase electric energy pulse increment within a preset time period includes: The energy storage energy management unit uses the built-in combined-phase electric energy pulse counting register to calculate the total combined-phase electric energy pulse increment within a preset time period, and uses the built-in split-phase electric energy pulse counting register to calculate the increment of each split-phase electric energy pulse within a preset time period, outputs the total combined-phase electric energy pulse increment through the output interrupt interface, and outputs the increment of each split-phase electric energy pulse through the output communication port.

[0008] In one embodiment, the step of obtaining the total combined-phase electric energy pulse increment and the individual-phase electric energy pulse increment by the micro control unit includes: The micro control unit uses the input interrupt interface to obtain the total phase electric energy pulse increment sent by the energy storage energy management unit, and uses the input communication port to obtain the phase electric energy pulse increment sent by the energy storage energy management unit.

[0009] In one embodiment, determining the number of redistributed electric energy pulses of each phase according to the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase includes: Obtaining the weights of each phase electric energy pulse adjusted according to a preset rule in the previous time period, calculating the sum of the weights of each phase electric energy pulse and the corresponding phase electric energy pulse increment, and obtaining the accumulated value of each phase electric energy pulse weight; Determining the priority level of each phase electric energy pulse distribution according to the accumulated value of each phase electric energy pulse weight; The number of redistributed electric energy pulses of each phase is determined according to the priority level of the distribution of the electric energy pulses of each phase and the total electric energy pulse increment of the combined phase.

[0010] In one embodiment, after determining the number of redistributed electric energy pulses of each phase, the method further includes: According to the first corresponding phase of the reallocated number of electric energy pulses in each phase, the electric energy pulse weights of the first corresponding phase are adjusted; and the second corresponding phase of the number of electric energy pulses in each phase that have not been reallocated does not adjust the electric energy pulse weights of the second corresponding phase, so as to obtain the adjusted electric energy pulse weights of each phase in the current time period.

[0011] In one embodiment, the phase-splitting electric energy pulse distribution method further includes: Detect whether there is a minimum negative value in the adjusted weights of each phase electric energy pulse in the current time period. If the minimum negative value exists, determine the deviation value between the minimum negative value and zero, and add the deviation value to the adjusted weights of each phase electric energy pulse in the current time period, so that there is no negative value in the weights of each phase electric energy pulse after the weights are adjusted again.

[0012] In one embodiment, after the micro control unit uses the input interrupt interface to obtain the total phase electric energy pulse increment sent by the energy storage energy management unit, it also includes: Generate a lighting control instruction and a lighting duration instruction for the pulse lamp of the multi-phase electric energy meter, control the lighting of the pulse lamp according to the lighting control instruction, and control the lighting duration of the pulse lamp according to the lighting duration instruction.

[0013] In one embodiment, a phase-splitting electric energy pulse distribution device for a multi-phase electric energy meter is provided, and the phase-splitting electric energy pulse distribution device comprises: The energy storage energy management unit is used to obtain the voltage sampling signal of each phase and the current sampling signal of each phase, and calculate and output the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase within a preset time period according to the voltage sampling signal of each phase and the current sampling signal of each phase; The micro control unit is used to obtain the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase, and determine the number of redistributed electric energy pulses of each phase according to the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase.

[0014] In one embodiment, the energy storage energy management unit is also used to calculate the total combined-phase electric energy pulse increment within a preset time period using a built-in combined-phase electric energy pulse counting register, and to calculate the increment of each split-phase electric energy pulse within a preset time period using a built-in split-phase electric energy pulse counting register, and to output the total combined-phase electric energy pulse increment through an output interrupt interface, and to output the increment of each split-phase electric energy pulse through an output communication port.

[0015] In one embodiment, a multi-phase electric energy meter is provided, characterized in that a micro control unit and an energy storage energy management unit are provided in the multi-phase electric energy meter, and the micro control unit and the energy storage energy management unit are connected to implement the phase-splitting electric energy pulse distribution method described in any of the previous embodiments.

[0016] The above-mentioned multi-phase electric energy meter and its phase-by-phase electric energy pulse distribution method and device calculate the electric energy pulse increment of each phase and the total electric energy pulse increment of the combined phase respectively through the energy storage energy management unit, and send them to the micro control unit. In this way, the micro control unit receives the accurately calculated electric energy pulse increment of each phase and the total electric energy pulse increment of the combined phase, and can accurately determine the number of redistributed electric energy pulses of each phase according to the electric energy pulse increment of each phase; that is, the accurate electric energy pulse increment of each phase calculated in advance in the energy storage energy management unit is used as the basis for allocating the total electric energy pulse increment of the combined phase to each phase electric energy pulse, thereby solving the distortion problem of electric energy metering in phase and direction from the root of timing; at the same time, it can ensure that the electric energy pulse output result of the electric energy meter is completely corresponding to the electric energy measurement value of the electric energy meter, thereby improving the accuracy of the phase-by-phase electric energy measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 It is a flow chart of a method for distributing phase-splitting electric energy pulses of a multi-phase electric energy meter in one embodiment of the present invention; Figure 2 It is a flow chart of another method for allocating phase electric energy pulses of a multi-phase electric energy meter in one embodiment of the present invention; Figure 3 is a schematic diagram of the electric energy pulse distribution results at the 1st second and the 2nd second in one embodiment of the present invention; Figure 4 It is a schematic diagram of a phase-splitting electric energy pulse distribution device of a multi-phase electric energy meter in one embodiment of the present invention; Figure 5 It is a schematic diagram of multi-phase electric energy in one embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and fully convey the scope of the present invention to those skilled in the art. In the accompanying drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity. The same reference numerals throughout represent the same elements.

[0021] It should be understood that when an element or layer is referred to as being "on, adjacent to, connected to or coupled to other elements or layers, it may be directly on, adjacent to, connected to or coupled to other elements or layers, or there may be intervening elements or layers. In contrast, when an element is referred to as being "directly on, directly adjacent to, directly connected to or directly coupled to other elements or layers, there may be no intervening elements or layers. It should be understood that, although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present invention, the first element, component, region, layer or part discussed below may be represented as a second element, component, region, layer or part.

[0022] Spatially relative terms such as "under," "beneath," "below," "under," "above," "above," and the like may be used herein for ease of description to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that the spatially relative terms are intended to include different orientations of the device in use and operation in addition to the orientations shown in the figures. For example, if the device in the accompanying drawings is flipped, then the elements or features described as "under other elements" or "under" or "under" will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0023] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present invention. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0024] In order to fully understand the present invention, detailed structures and steps will be presented in the following description to illustrate the technical solutions proposed by the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0025] In one embodiment, if Figure 1 As shown, a method for distributing split-phase electric energy pulses of a multi-phase electric energy meter is provided, wherein the multi-phase electric energy meter includes a micro control unit and an energy storage energy management unit, and the method for distributing split-phase electric energy pulses includes the following methods: S101, obtaining the voltage sampling signal of each phase and the current sampling signal of each phase through the energy storage energy management unit, and calculating and outputting the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase within a preset time period according to the voltage sampling signal of each phase and the current sampling signal of each phase; Among them, each phase voltage sampling signal is the collected A-phase voltage collection signal, B-phase voltage collection signal, and C-phase voltage collection signal of the user-side electricity consumption, and each phase current sampling signal is the collected A-phase current collection signal, B-phase current collection signal, and C-phase current collection signal of the user-side electricity consumption; the total phase electric energy pulse increment is the total phase electric energy pulse calculated by the energy storage energy management unit based on the A-phase voltage collection signal, B-phase voltage collection signal, C-phase voltage collection signal, A-phase current collection signal, B-phase current collection signal, and C-phase current collection signal, which is used to characterize the total electric energy in the current time period; each phase electric energy pulse increment is the phase electric energy pulse calculated by the energy storage energy management unit based on the phase voltage collection signal and the phase current collection signal, which is used to characterize the phase electric energy in the current time period. For example, each phase electric energy pulse increment can be an A-phase electric energy pulse increment, a B-phase electric energy pulse increment, or a C-phase electric energy pulse increment.

[0026] In this step, the method for calculating the increment of electric energy pulses of each phase according to the voltage sampling signals of each phase and the current sampling signals of each phase is prior art, and the relevant records in the prior art may be referred to, and will not be described in detail in this embodiment.

[0027] S102, obtaining the total combined-phase electric energy pulse increment and the each-phase electric energy pulse increment through the micro control unit, and determining the number of each-phase electric energy pulse to be redistributed according to the total combined-phase electric energy pulse increment and the each-phase electric energy pulse increment.

[0028] Among them, the total phase electric energy pulse increment and the each phase electric energy pulse increment are calculated by the energy storage energy management unit in step S101 and output to the micro control unit, and the micro control unit can determine the number of redistributed each phase electric energy pulses based on the acquired total phase electric energy pulse increment and each phase electric energy pulse increment.

[0029] Compared with the existing phase-splitting electric energy pulse distribution method, the phase-splitting electric energy pulse distribution method of this embodiment calculates the increment of each phase electric energy pulse and the increment of the total electric energy pulse of the phase through the energy storage energy management unit, and sends them to the micro control unit. In this way, the micro control unit receives the accurately calculated increment of each phase electric energy pulse and the increment of the total electric energy pulse of the phase, and can accurately determine the number of redistributed phase electric energy pulses according to the increment of each phase electric energy pulse; that is, the accurate increment of each phase electric energy pulse calculated in advance in the energy storage energy management unit is used as the basis for allocating the increment of the total electric energy pulse of the phase to each phase electric energy pulse, so as to solve the distortion problem of phase and direction of electric energy metering from the root of timing; at the same time, it can ensure that the output result of the electric energy pulse of the electric energy meter is completely corresponding to the electric energy measurement value of the electric energy meter.

[0030] Furthermore, since the calculation process of each phase electric energy pulse increment is all carried out in the energy storage energy management unit, there is no need to separately set up an integral timer in the microcontroller unit specifically for calculating the increment of each phase electric energy pulse, which reduces the overall operating load of the microcontroller unit and improves the overall performance of the product. In one embodiment, the step of calculating and outputting the total combined-phase electric energy pulse increment and each phase electric energy pulse increment within a preset time period includes: The energy storage energy management unit uses the built-in combined-phase electric energy pulse counting register to calculate the total combined-phase electric energy pulse increment within a preset time period, and uses the built-in split-phase electric energy pulse counting register to calculate the increment of each split-phase electric energy pulse within a preset time period, outputs the total combined-phase electric energy pulse increment through the output interrupt interface, and outputs the increment of each split-phase electric energy pulse through the output communication port.

[0031] Among them, the energy storage energy management unit can use a metering chip that has both a combined-phase electric energy pulse counting register and a split-phase electric energy pulse counting register built in. Since the integration frequencies of the two registers are exactly the same and the refresh timing of the integration objects (split-phase power) used is consistent, the technical accuracy of the total combined-phase electric energy pulse increment and the split-phase electric energy pulse increment can be guaranteed.

[0032] In one embodiment, the step of obtaining the total combined-phase electric energy pulse increment and the individual-phase electric energy pulse increment by the micro control unit includes: The micro control unit uses the input interrupt interface to obtain the total phase electric energy pulse increment sent by the energy storage energy management unit, and uses the input communication port to obtain the phase electric energy pulse increment sent by the energy storage energy management unit.

[0033] Among them, the microcontroller executes the external interrupt signal through the input interrupt interface. If the external interrupt signal is detected, it is necessary to protect the CPU environment of the interrupted process and transfer to the corresponding interrupt handler according to the type of the external interrupt signal to ensure that the microcontroller can reliably receive the total electric energy pulse increment of the combined phase; and the microcontroller can obtain the electric energy pulse increment of each phase in a non-interrupt manner. For example, the input communication port can use the SPI communication port to realize the communication of the electric energy pulse increment of each phase between the microcontroller and the energy storage energy management unit.

[0034] In one embodiment, if Figure 2 As shown, according to the total combined-phase electric energy pulse increment and the electric energy pulse increment of each phase, determining the number of electric energy pulses of each phase to be redistributed includes: S201, obtaining the weight of each phase electric energy pulse adjusted according to a preset rule in the previous time period, calculating the sum of the weight of each phase electric energy pulse and the corresponding phase electric energy pulse increment, and obtaining the accumulated value of each phase electric energy pulse weight; For example, Figure 3 The example of the electric energy pulse distribution algorithm shown in the figure takes the time period from the 2nd second to the 3rd second as the current time period, and takes the time period from the 1st second to the 2nd second as the previous time period. Figure 3 As shown, the phase energy pulse weights of the previous time period include: A+ phase energy pulse weight is 0, A- phase energy pulse weight is 0, B+ phase energy pulse weight is 0, B- phase energy pulse weight is 1, C+ phase energy pulse weight is 1, and C- phase energy pulse weight is 1. The phase energy pulse increments of the current time period include: A+ phase energy pulse increment is 1, A- phase energy pulse increment is 1, B+ phase energy pulse increment is 1, B- phase energy pulse increment is 0, C+ phase energy pulse increment is 1, and C- phase energy pulse increment is 1.

[0035] Then calculate the sum of the A+ phase electric energy pulse weight and the A+ phase electric energy pulse increment, and obtain the accumulated value of the A+ phase electric energy pulse weight as 1, calculate the sum of the A- phase electric energy pulse weight and the A- phase electric energy pulse increment, and obtain the accumulated value of the A- phase electric energy pulse weight as 1, calculate the sum of the B+ phase electric energy pulse weight and the B+ phase electric energy pulse increment, and obtain the accumulated value of the B+ phase electric energy pulse weight as 1, calculate the sum of the B- phase electric energy pulse weight and the B- phase electric energy pulse increment, and obtain the accumulated value of the B- phase electric energy pulse weight as 1, calculate the sum of the C+ phase electric energy pulse weight and the C+ phase electric energy pulse increment, and obtain the accumulated value of the C+ phase electric energy pulse weight as 2, calculate the sum of the C- phase electric energy pulse weight and the C- phase electric energy pulse increment, and obtain the accumulated value of the C- phase electric energy pulse weight as 2. The accumulated values ​​of the electric energy pulse weights of each phase are as follows: Figure 3 shown.

[0036] S202, determining the priority level of each phase electric energy pulse distribution according to the accumulated value of each phase electric energy pulse weight; The accumulated values ​​of the weights of the electric energy pulses of each phase can be sorted according to the accumulated values ​​to determine the priority of the allocation of the electric energy pulses of each phase. Figure 3 As shown, the accumulated values ​​of the weights of each phase energy pulse in the 2nd second are [1,1,1,1,2,2] respectively. Therefore, after sorting according to the accumulated values, it can be determined that the priority of C+ / C- phase energy pulse distribution is higher than the priority of A+ / A- / B+ / B- phase energy pulse distribution, and the priority of C+ phase energy pulse distribution is the same as the priority of C- phase energy pulse distribution, and the priority of A+ phase energy pulse distribution, A- phase energy pulse distribution, B+ phase energy pulse distribution, and B- phase energy pulse distribution are the same.

[0037] S203, determining the number of electric energy pulses of each phase to be redistributed according to the priority level of the electric energy pulses of each phase and the total electric energy pulse increment of the combined phase.

[0038] Among them, the total combined-phase electric energy pulse increment can be sequentially allocated to each phase electric energy pulse with a high priority level, thereby determining the number of redistributed phase electric energy pulses. Figure 3 As shown, the total combined energy pulse increment in the 2nd second is 4. Since the priority of C+ / C- phase energy pulse allocation is higher than that of A+ / A- / B+ / B- phase energy pulse allocation, one C+ phase energy pulse and one C- phase energy pulse are added respectively, so that the number of C+ phase energy pulses after allocation is 6, and the number of C- phase energy pulses is 7; the remaining 2 energy pulses are randomly allocated to A+ / A- / B+ / B- phases with lower priority, for example, to A+ phase and A- phase, so that the number of A+ phase energy pulses after allocation is 3, and the number of A- phase energy pulses is 4; the number of B+ / B- phase energy pulses remains unchanged.

[0039] The phase-splitting electric energy pulse distribution method of this embodiment can accurately determine the number of redistributed phase electric energy pulses by accurately calculating the increment of each phase electric energy pulse and the increment of the total phase electric energy pulse by the energy storage energy management unit, thereby making the electric energy measurement of each phase more accurate.

[0040] In one embodiment, after determining the number of redistributed electric energy pulses of each phase, the method further includes: According to the first corresponding phase of the reallocated number of electric energy pulses in each phase, the electric energy pulse weights of the first corresponding phase are adjusted; and the second corresponding phase of the number of electric energy pulses in each phase that have not been reallocated does not adjust the electric energy pulse weights of the second corresponding phase, so as to obtain the adjusted electric energy pulse weights of each phase in the current time period.

[0041] For example, Figure 3 As shown, the first corresponding phases of the number of electric energy pulses of each phase that are redistributed at the 2nd second are C+ / C- phase and A+ / A- phase, so the accumulated values ​​of the electric energy pulse weights of the C+ / C- / A+ / A- phases are reduced by 1 respectively, and the second corresponding phases of the number of electric energy pulses of each phase that are not redistributed at the 2nd second are B+ / B- phase, and the accumulated value of the electric energy pulse weight of the B+ / B- phase remains unchanged, so the adjusted weights of the electric energy pulses of each phase in the current time period are [0,0,1,1,1,1], which are used as the basis for measuring the priority of the allocation of electric energy pulses of each phase in the 3rd second.

[0042] The phase-splitting power pulse distribution method of this embodiment can be used as a basis for measuring the priority level of distribution of each phase-splitting power pulse in the next time period by adjusting the weight of each phase-splitting power pulse in the current time period.

[0043] In one embodiment, the phase-splitting electric energy pulse distribution method further includes: Detect whether there is a minimum negative value in the adjusted weights of each phase electric energy pulse in the current time period. If the minimum negative value exists, determine the deviation value between the minimum negative value and zero, and add the deviation value to the adjusted weights of each phase electric energy pulse in the current time period, so that there is no negative value in the weights of each phase electric energy pulse after the weights are adjusted again.

[0044] For example, the weights of each phase electric energy pulse in the first second are [-1,-1,-1,0,0,0] after the first allocation. There is a minimum negative value -1, and the deviation between this value and zero is 1. Add 1 to each value in [-1,-1,-1,0,0,0] and we get the weights of each phase electric energy pulse after the weight adjustment [0,0,0,1,1,1].

[0045] The purpose of the phase-splitting electric energy pulse distribution method of this embodiment, in which there are no negative values ​​in the weights of each phase-splitting electric energy pulse after the weight adjustment again, is to increase the priority level of the distribution of some phase-splitting electric energy pulses in the next time period, while keeping the priority level of the distribution of other phase-splitting electric energy pulses unchanged, thereby avoiding lowering the priority level of the distribution of the phase-splitting electric energy pulses in the next time period.

[0046] In one embodiment, after the micro control unit uses the input interrupt interface to obtain the total phase electric energy pulse increment sent by the energy storage energy management unit, it also includes: Generate a lighting control instruction and a lighting duration instruction for the pulse lamp of the multi-phase electric energy meter, control the lighting of the pulse lamp according to the lighting control instruction, and control the lighting duration of the pulse lamp according to the lighting duration instruction.

[0047] When the microcontroller unit determines that an external interruption occurs, the microcontroller unit generates a lighting control instruction and a lighting duration instruction for the pulse lamp of the multi-phase electric energy meter, and controls the lighting duration of the pulse lamp according to the lighting duration instruction.

[0048] In one embodiment, if Figure 4 As shown, a phase-splitting electric energy pulse distribution device of a multi-phase electric energy meter is provided, and the phase-splitting electric energy pulse distribution device comprises: The energy storage energy management unit 41 is used to obtain the voltage sampling signal of each phase and the current sampling signal of each phase, and calculate and output the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase within a preset time period according to the voltage sampling signal of each phase and the current sampling signal of each phase; The micro control unit 42 is used to obtain the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase, and determine the number of redistributed electric energy pulses of each phase according to the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase.

[0049] In one embodiment, the energy storage energy management unit is also used to calculate the total combined-phase electric energy pulse increment within a preset time period using a built-in combined-phase electric energy pulse counting register, and to calculate the increment of each split-phase electric energy pulse within a preset time period using a built-in split-phase electric energy pulse counting register, and to output the total combined-phase electric energy pulse increment through an output interrupt interface, and to output the increment of each split-phase electric energy pulse through an output communication port.

[0050] In one embodiment, the micro control unit is also used to use the input interrupt interface to obtain the total phase electric energy pulse increment sent by the energy storage energy management unit, and use the input communication port to obtain the phase electric energy pulse increment sent by the energy storage energy management unit.

[0051] In one embodiment, the micro control unit comprises: The accumulation calculation subunit is used to obtain the weight of each phase electric energy pulse adjusted according to the preset rules in the previous time period, calculate the sum of the weight of each phase electric energy pulse and the corresponding phase electric energy pulse increment, and obtain the accumulated value of each phase electric energy pulse weight; A priority level identification subunit, used to determine the priority level of each phase electric energy pulse distribution according to the accumulated value of each phase electric energy pulse weight; The pulse quantity allocation subunit is used to determine the number of redistributed electric energy pulses of each phase according to the priority level of the allocation of the electric energy pulses of each phase and the total electric energy pulse increment of the combined phase.

[0052] In one embodiment, the micro control unit further includes: The first pulse weight adjustment subunit is used to adjust the electric energy pulse weights of the first corresponding phases according to the reallocated number of electric energy pulses in each phase; the second corresponding phases of the number of electric energy pulses in each phase that have not been reallocated do not adjust the electric energy pulse weights of the second corresponding phases, thereby obtaining the adjusted electric energy pulse weights of each phase in the current time period.

[0053] In one embodiment, the micro control unit further includes: The second pulse weight adjustment subunit is used to detect whether there is a minimum negative value in the adjusted weights of each phase electric energy pulse in the current time period. If the minimum negative value exists, determine the deviation between the minimum negative value and zero, and add the deviation value to the adjusted weights of each phase electric energy pulse in the current time period, so that there is no negative value in the weights of each phase electric energy pulse after the weight adjustment again.

[0054] In one embodiment, the microcontroller unit is also used to generate a lighting control instruction and a lighting duration instruction for the pulse lamp of the multi-phase electric energy meter after the microcontroller unit uses the input interrupt interface to obtain the total phase electric energy pulse increment sent by the energy storage energy management unit, and control the lighting of the pulse lamp according to the lighting control instruction, and control the lighting duration of the pulse lamp according to the lighting duration instruction.

[0055] In one embodiment, if Figure 5 As shown, a multi-phase electric energy meter 51 is provided, in which a micro control unit and an energy storage energy management unit are provided. The micro control unit and the energy storage energy management unit are connected to implement the phase-splitting electric energy pulse distribution method described in any of the previous embodiments.

[0056] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A phase-splitting electric energy pulse distribution method for a multi-phase electric energy meter, characterized in that: The multi-phase electric energy meter includes a micro control unit and an energy storage energy management unit, and the phase-splitting electric energy pulse distribution method includes the following method: The energy storage energy management unit obtains the voltage sampling signal of each phase and the current sampling signal of each phase, and calculates and outputs the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase within a preset time period according to the voltage sampling signal of each phase and the current sampling signal of each phase; The total combined-phase electric energy pulse increment and the each-phase electric energy pulse increment are obtained by the microcontroller unit, and the number of each-phase electric energy pulse to be redistributed is determined according to the total combined-phase electric energy pulse increment and the each-phase electric energy pulse increment.

2. The method for distributing phase-splitting electric energy pulses of a multi-phase electric energy meter according to claim 1, characterized in that: The calculation and output of the total combined-phase electric energy pulse increment and each phase electric energy pulse increment within a preset time period comprises: The energy storage energy management unit uses the built-in combined-phase electric energy pulse counting register to calculate the total combined-phase electric energy pulse increment within a preset time period, and uses the built-in split-phase electric energy pulse counting register to calculate the increment of each split-phase electric energy pulse within a preset time period, outputs the total combined-phase electric energy pulse increment through the output interrupt interface, and outputs the increment of each split-phase electric energy pulse through the output communication port.

3. The method for distributing phase-splitting electric energy pulses of a multi-phase electric energy meter according to claim 2, characterized in that: The step of obtaining the total combined-phase electric energy pulse increment and the individual-phase electric energy pulse increment by the microcontroller unit includes: The micro control unit uses the input interrupt interface to obtain the total phase electric energy pulse increment sent by the energy storage energy management unit, and uses the input communication port to obtain the phase electric energy pulse increment sent by the energy storage energy management unit.

4. The method for distributing phase-splitting electric energy pulses of a multi-phase electric energy meter according to claim 3, characterized in that: Determining the number of redistributed electric energy pulses of each phase according to the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase comprises: Obtaining the weights of each phase electric energy pulse adjusted according to a preset rule in the previous time period, calculating the sum of the weights of each phase electric energy pulse and the corresponding phase electric energy pulse increment, and obtaining the accumulated value of each phase electric energy pulse weight; Determining the priority level of each phase electric energy pulse distribution according to the accumulated value of each phase electric energy pulse weight; The number of redistributed electric energy pulses of each phase is determined according to the priority level of the distribution of the electric energy pulses of each phase and the total electric energy pulse increment of the combined phase.

5. The method for distributing phase-splitting electric energy pulses of a multi-phase electric energy meter according to claim 4, characterized in that: After determining the number of redistributed electric energy pulses of each phase, it also includes: According to the first corresponding phase of the reallocated number of electric energy pulses in each phase, the weight of the electric energy pulses in the first corresponding phase is adjusted; and the second corresponding phase of the number of electric energy pulses in each phase that has not been reallocated does not adjust the weight of the electric energy pulses in the second corresponding phase, so as to obtain the adjusted weight of the electric energy pulses in the current time period.

6. The method for distributing phase-splitting electric energy pulses of a multi-phase electric energy meter according to claim 5, characterized in that: The phase-splitting electric energy pulse distribution method also includes: Detect whether there is a minimum negative value in the adjusted weights of each phase electric energy pulse in the current time period. If the minimum negative value exists, determine the deviation value between the minimum negative value and zero, and add the deviation value to the adjusted weights of each phase electric energy pulse in the current time period, so that there is no negative value in the weights of each phase electric energy pulse after the weights are adjusted again.

7. The method for distributing phase-splitting electric energy pulses of a multi-phase electric energy meter according to claim 3, characterized in that: After the micro control unit uses the input interrupt interface to obtain the total phase electric energy pulse increment sent by the energy storage energy management unit, it also includes: Generate a lighting control instruction and a lighting duration instruction for the pulse lamp of the multi-phase electric energy meter, control the lighting of the pulse lamp according to the lighting control instruction, and control the lighting duration of the pulse lamp according to the lighting duration instruction.

8. A phase-splitting electric energy pulse distribution device for a multi-phase electric energy meter, characterized in that: The phase-splitting electric energy pulse distribution device comprises: The energy storage energy management unit is used to obtain the voltage sampling signal of each phase and the current sampling signal of each phase, and calculate and output the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase within a preset time period according to the voltage sampling signal of each phase and the current sampling signal of each phase; The micro control unit is used to obtain the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase, and determine the number of redistributed electric energy pulses of each phase according to the total electric energy pulse increment of the combined phase and the electric energy pulse increment of each phase.

9. The phase-splitting electric energy pulse distribution device of the multi-phase electric energy meter according to claim 8, characterized in that: The energy storage energy management unit is also used to calculate the total combined-phase electric energy pulse increment within a preset time period using the built-in combined-phase electric energy pulse counting register, and to calculate the increment of each split-phase electric energy pulse within a preset time period using the built-in split-phase electric energy pulse counting register, output the total combined-phase electric energy pulse increment through the output interrupt interface, and output the increment of each split-phase electric energy pulse through the output communication port.

10. A multiphase electric energy meter, characterized in that: The multi-phase electric energy meter is provided with a micro control unit and an energy storage energy management unit, and the micro control unit and the energy storage energy management unit are connected to implement the phase-splitting electric energy pulse distribution method as described in any one of claims 1 to 7.

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