Intelligent power distribution control method and system for power distribution control box

Abstract

The invention relates to the technical field of intelligent power distribution, and particularly discloses an intelligent power distribution control method and system for a power distribution control box, and the method comprises the steps: obtaining all circuit access point parameters of each circuit breaker at a current moment based on the real-time processing parameters of each circuit breaker at all moments in a preset time period before the current moment; based on the actual opening and closing states of all the circuit breakers at each moment in the preset time period before the current moment and all the circuit access point parameters of all the circuit breakers at the current moment, obtaining fault risk values of all the branch circuits at each moment in the preset time period before the current moment; and obtaining an intelligent power distribution control result of the power distribution control box at the current moment based on the fault risk values of all branch circuits at all moments within a preset time period before the current moment. According to the invention, all the circuit breakers in the power distribution control box are automatically adjusted, and the fault occurrence frequency and the downtime are effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent power distribution, and in particular to an intelligent power distribution control method and system for a power distribution control box. Background Art

[0002] At present, in the field of power system and industrial automation, the distribution control box is the core component of power distribution and protection, and its stability and reliability are directly related to the safe and efficient operation of the entire system. However, with the continuous growth of power demand and the increasing complexity of power networks, the operation and management of circuit breakers inside the distribution control box face many challenges. Traditional power distribution systems often rely on manual inspections, which are not only inefficient, but also difficult to detect potential faults in a timely manner, which can easily lead to unplanned downtime and affect production progress. Therefore, how to achieve real-time monitoring and fault risk prediction of each circuit breaker and branch circuit status, and automatically adjust all circuit breakers in the distribution control box to reduce the number of faults and downtime has become an urgent key in the current field of intelligent power distribution technology.

[0003] However, the existing intelligent power distribution control method and system of the power distribution control box only generates the corresponding power distribution strategy according to the real-time working status data of the electrical equipment and the future power demand, and automatically adjusts the power distribution in the power distribution cabinet, but does not consider the possibility of quantifying the risk of failure of each branch circuit at each moment in the preset time period before the current moment, nor does it automatically adjust all circuit breakers in the power distribution control box to effectively reduce the number of failures and downtime. For example, the patent with the publication number of "CN117543835A" and the name of the patent is "A method and device for intelligent power distribution control of a power distribution cabinet", and the method includes the following steps: training the processing results through a neural network model and establishing a power demand prediction model; predicting the future power demand according to the real-time working status data of the electrical equipment and the power demand prediction model to obtain a prediction result; generating a corresponding power distribution strategy according to the prediction result through an optimization algorithm; adjusting the distributed power supply in the power distribution cabinet according to the power distribution strategy to obtain an adjustment result; and automatically adjusting the power distribution in the power distribution cabinet according to the adjustment result and the preset control strategy. The method provided by the above patent can generate a corresponding power distribution strategy based on the real-time working status data of the electrical equipment and the future power demand, and automatically adjust the power distribution in the distribution cabinet. However, the patent only generates a corresponding power distribution strategy based on the real-time working status data of the electrical equipment and the future power demand, and automatically adjusts the power distribution in the distribution cabinet. It does not consider the possibility of quantifying the risk of failure of each branch circuit at each moment in the preset time period before the current moment, nor does it automatically adjust all circuit breakers in the distribution control box to effectively reduce the number of failures and downtime.

[0004] Therefore, the present invention proposes an intelligent power distribution control method and system for a power distribution control box. Summary of the invention

[0005] The present invention provides an intelligent power distribution control method and system for a power distribution control box, which is used to accurately obtain the actual opening and closing states and real-time processing parameters of all circuit breakers at each moment in a preset time period before the current moment according to the state information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, so as to facilitate the subsequent drawing of waveform diagrams and access node diagrams, and then obtain the voltage waveform diagram and current waveform diagram of each circuit breaker at the current moment according to the real-time processing parameters of each circuit breaker at all moments in the preset time period before the current moment, and accurately obtain all circuit access point parameters of each circuit breaker at the current moment according to the voltage waveform diagram and current waveform diagram of each circuit breaker at the current moment, accurately obtain parameters for evaluating the circuit state of the circuit access point of each circuit breaker at the current moment, so as to facilitate the subsequent calculation of fault risk values, and calculate the actual opening and closing states and real-time processing parameters of all circuit breakers at each moment in the preset time period before the current moment according to the real-time processing parameters of each circuit breaker at all moments in the preset time period before the current moment. The actual opening and closing state of the power distribution control box is obtained, and the access node diagram of the distribution control box at each moment in the preset time period before the current moment is obtained. Then, according to the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, the fault risk value of all branch circuits at each moment in the preset time period before the current moment is obtained, and the possibility of the risk of failure of each branch circuit at each moment in the preset time period before the current moment is quantified. Finally, according to the fault risk values ​​of all branch circuits at all moments in the preset time period before the current moment, the distribution analysis matrix of the distribution control box at the current moment is obtained. According to the distribution analysis matrix of the distribution control box at the current moment, the intelligent distribution control result of the distribution control box at the current moment is obtained, and the automatic adjustment of all circuit breakers in the distribution control box is realized, which effectively reduces the number of failures and downtime, and reduces the operation and maintenance costs.

[0006] The present invention provides an intelligent power distribution control method for a power distribution control box, comprising:

[0007] S1: Based on the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, obtain the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in a preset time period before the current moment;

[0008] S2: based on the real-time processing parameters of each circuit breaker at all times within a preset time period before the current moment, obtaining the voltage waveform and current waveform of each circuit breaker at the current moment, and based on the voltage waveform and current waveform of each circuit breaker at the current moment, obtaining all circuit access point parameters of each circuit breaker at the current moment;

[0009] S3: Based on the actual opening and closing states of all circuit breakers at each moment in the preset time period before the current moment, obtain the access node diagram of the distribution control box at each moment in the preset time period before the current moment, and based on the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, obtain the fault risk value of all branch circuits at each moment in the preset time period before the current moment;

[0010] S4: Based on the fault risk values ​​of all branch circuits at all times within a preset time period before the current moment, obtain the distribution analysis matrix of the distribution control box at the current moment, and based on the distribution analysis matrix of the distribution control box at the current moment, obtain the intelligent distribution control result of the distribution control box at the current moment.

[0011] Preferably, the intelligent power distribution control method of the power distribution control box, S1: based on the state information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, obtain the actual opening and closing state and real-time processing parameters of all circuit breakers at each moment in a preset time period before the current moment, including:

[0012] Obtain the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, where the status information includes the opening and closing status and fault alarm status, and the real-time parameters include the real-time voltage parameters and real-time current parameters;

[0013] When the fault alarm situation of each circuit breaker at each moment in the preset time period before the current moment is that there is no fault alarm, the opening and closing state at the corresponding moment is regarded as the actual opening and closing state of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment; when the fault alarm situation of each circuit breaker at each moment in the preset time period before the current moment is that there is a fault alarm, the manually set opening and closing state at the corresponding moment is regarded as the actual opening and closing state of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment;

[0014] Based on the real-time parameters of all circuit breakers at all times within a preset time period before the current time, the real-time processing parameters of all circuit breakers at each time within the preset time period before the current time are obtained.

[0015] Preferably, the intelligent power distribution control method of the power distribution control box obtains the real-time processing parameters of all circuit breakers at each moment in the preset time period before the current moment based on the real-time parameters of all circuit breakers at all moments in the preset time period before the current moment, including:

[0016] Determine whether the difference between the real-time voltage parameter of each circuit breaker at each moment within a preset time period before the current moment and the real-time voltage parameter of all adjacent moments of the corresponding moment is greater than a preset voltage difference threshold; if so, take the average of the real-time voltage parameters of all adjacent moments of the corresponding moment as the real-time voltage processing parameter of the corresponding circuit breaker at the corresponding moment within the preset time period before the current moment; otherwise, take the real-time voltage parameter at the corresponding moment as the real-time voltage processing parameter of the corresponding circuit breaker at the corresponding moment within the preset time period before the current moment;

[0017] Determine whether the difference between the real-time current parameter of each circuit breaker at each moment in the preset time period before the current moment and the real-time current parameter of all adjacent moments of the corresponding moment is greater than the preset current difference threshold; if so, take the average of the real-time current parameters of all adjacent moments of the corresponding moment as the real-time current processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment; otherwise, take the real-time current parameter at the corresponding moment as the real-time current processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment;

[0018] The real-time voltage processing parameters and the real-time current processing parameters of each circuit breaker at each moment in the preset time period before the current moment are used as the real-time processing parameters of each circuit breaker at each moment in the preset time period before the current moment.

[0019] Preferably, the intelligent power distribution control method of the power distribution control box, S2: based on the real-time processing parameters of each circuit breaker at all times within a preset time period before the current moment, obtain the voltage waveform and current waveform of each circuit breaker at the current moment, and based on the voltage waveform and current waveform of each circuit breaker at the current moment, obtain all circuit access point parameters of each circuit breaker at the current moment, including:

[0020] Taking all the moments of each circuit breaker in a preset time period before the current moment as the horizontal axis value and the real-time voltage processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment as the vertical axis value, all the analyzed voltage points of each circuit breaker at the current moment are obtained;

[0021] Taking all the moments of each circuit breaker in a preset time period before the current moment as the horizontal axis value and the real-time current processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment as the vertical axis value, all the analysis current points of each circuit breaker at the current moment are obtained;

[0022] All analyzed voltage points of each circuit breaker at the current moment are sequentially connected from small to large according to the time sequence corresponding to the horizontal coordinate value, so as to obtain the voltage waveform of each circuit breaker at the current moment, and all analyzed current points of each circuit breaker at the current moment are sequentially connected from small to large according to the time sequence corresponding to the horizontal coordinate value, so as to obtain the current waveform of each circuit breaker at the current moment;

[0023] Based on the voltage waveform diagram and the current waveform diagram of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are obtained.

[0024] Preferably, the intelligent power distribution control method of the power distribution control box obtains all circuit access point parameters of each circuit breaker at the current moment based on the voltage waveform and current waveform of each circuit breaker at the current moment, including:

[0025] The analysis voltage point with the largest difference in ordinate value between all analysis voltage points of each circuit breaker at the current moment and the reference voltage point of the corresponding circuit breaker at the current moment is regarded as the maximum difference voltage point of the corresponding circuit breaker at the current moment, the difference between the abscissa value of the maximum difference voltage point of each circuit breaker at the current moment and the reference voltage point of the corresponding circuit breaker at the current moment is regarded as the access point voltage peak duration of the corresponding circuit breaker at the current moment, and the quotient of the integral of the waveform segment between the maximum difference voltage point and the reference voltage point in the voltage waveform diagram of each circuit breaker at the current moment and the access point voltage peak duration of the corresponding circuit breaker at the current moment is regarded as the access point voltage fluctuation peak value of the corresponding circuit breaker at the current moment;

[0026] The analysis current point with the largest difference in ordinate value between all analysis current points of each circuit breaker at the current moment and the reference current point of the corresponding circuit breaker at the current moment is regarded as the maximum difference current point of the corresponding circuit breaker at the current moment, the difference between the abscissa value of the maximum difference current point of each circuit breaker at the current moment and the reference current point of the corresponding circuit breaker at the current moment is regarded as the access point current peak duration of the corresponding circuit breaker at the current moment, and the quotient of the integral of the waveform segment between the maximum difference current point and the reference current point in the current waveform diagram of each circuit breaker at the current moment and the access point current peak duration of the corresponding circuit breaker at the current moment is regarded as the access point current fluctuation peak value of the corresponding circuit breaker at the current moment;

[0027] The access point voltage fluctuation peak value, access point voltage peak duration, access point current fluctuation peak value and access point current peak duration of each circuit breaker at the current moment are used as all circuit access point parameters of each circuit breaker at the current moment.

[0028] Preferably, the intelligent power distribution control method of the power distribution control box obtains the access node diagram of the power distribution control box at each moment in the preset time period before the current moment based on the actual opening and closing states of all circuit breakers at each moment in the preset time period before the current moment, including:

[0029] Get the actual location of the circuit access points of all circuit breakers in the power distribution control box;

[0030] Determine whether the actual opening and closing state of each circuit breaker at each moment in the preset time period before the current moment is closed; if so, use the actual position of the circuit access point of the corresponding circuit breaker as the judgment node at the corresponding moment in the preset time period before the current moment; otherwise, use the actual position of the circuit access point of the corresponding circuit breaker as the non-closed node at the corresponding moment in the preset time period before the current moment;

[0031] Obtain all branch circuits of the power distribution control box, and determine all circuit breakers on each branch circuit as mutually related circuit breakers;

[0032] If the circuit breaker corresponding to each judgment node at each moment in the preset time period before the current moment and the circuit breakers corresponding to all non-closed nodes at the corresponding moment in the preset time period before the current moment are not mutually associated circuit breakers, then the corresponding judgment node at the corresponding moment in the preset time period before the current moment is regarded as the connection node at the corresponding moment in the preset time period before the current moment;

[0033] A graph of the mapping positions of all connection nodes at each moment in the preset time period before the current moment on the preset two-dimensional coordinate system is used as the access node graph of the distribution control box at each moment in the preset time period before the current moment.

[0034] Preferably, the intelligent power distribution control method of the power distribution control box obtains the fault risk value of all branch circuits at each moment in the preset time period before the current moment based on the access node diagram of the power distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, including:

[0035] Obtain the basic electrical parameters of all circuit breakers, including rated voltage, rated current and rated short-time duration;

[0036] The connection nodes corresponding to the circuit breakers of all the connection nodes at each moment in the preset time period before the current moment, and the connection nodes corresponding to the circuit breakers in each branch circuit, are regarded as the connection nodes of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment;

[0037] If the number of connection nodes of each branch circuit at each moment in the preset time period before the current moment is not 0, then all the remaining connection nodes, except for all the connection nodes of each branch circuit at the corresponding moment in the preset time period before the current moment, are regarded as the reference connection nodes of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment, and the circuit breaker corresponding to the reference connection node closest to the center of the covering circle of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment among all the reference connection nodes of each branch circuit at each moment in the preset time period before the current moment is regarded as the standard reference circuit breaker of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment. Based on all the circuit access point parameters of all the circuit breakers on each branch circuit at the current moment, the basic electrical parameters of all the circuit breakers and the standard reference circuit breaker of the corresponding branch circuit at each moment in the preset time period before the current moment, the fault risk value of each branch circuit at each moment in the preset time period before the current moment is obtained, which is:

[0038]

[0039] Where β is the fault risk value of the currently calculated branch circuit at the current calculation moment within the preset time period before the current moment, u0 is the real-time voltage processing parameter of the standard reference circuit breaker of the currently calculated branch circuit at the current calculation moment within the preset time period before the current moment, i0 is the real-time current processing parameter of the standard reference circuit breaker of the currently calculated branch circuit at the current calculation moment within the preset time period before the current moment, U j is the rated voltage of the jth circuit breaker on the branch circuit currently being calculated, I j is the rated current of the jth circuit breaker on the branch circuit currently being calculated, T j is the rated short-time duration of the jth circuit breaker on the branch circuit currently being calculated, n is the total number of circuit breakers on the branch circuit currently being calculated, and u j is the peak voltage fluctuation of the access point of the jth circuit breaker on the branch circuit at the current moment, i j is the peak current fluctuation of the jth circuit breaker on the branch circuit at the current moment, t j1 is the peak voltage duration of the jth circuit breaker on the branch circuit at the current moment, t j2 is the peak current duration of the access point of the j-th circuit breaker on the branch circuit currently calculated at the current moment, ln is the natural logarithm, and the value of the natural constant e is 2.718;

[0040] If the connection node of each branch circuit at each moment in the preset time period before the current moment is 0, 0 is used as the fault risk value of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment.

[0041] Preferably, the intelligent power distribution control method of the power distribution control box obtains the power distribution analysis matrix of the power distribution control box at the current moment based on the fault risk values ​​of all branch circuits at all moments in a preset time period before the current moment, including:

[0042] According to the initial coverage area of ​​all branch circuits, the ordinal definition is performed in order from large to small, starting from 1, to obtain the ordinal definition results of all branch circuits, and based on the fault risk values ​​of all branch circuits at all times in the preset time period before the current moment and the ordinal definition results of all branch circuits, the power distribution analysis matrix of the distribution control box at the current moment is obtained, which is:

[0043]

[0044] Among them, P is the power distribution analysis matrix of the power distribution control box at the current moment, β 11 is the fault risk value of the branch circuit with ordinal number 1 at the first moment in the preset time period before the current moment, β 12 is the fault risk value of the branch circuit with ordinal number 1 at the second moment in the preset time period before the current moment, β 1m is the fault risk value of the branch circuit with ordinal number 1 at the mth moment in the preset time period before the current moment, m is the number of all moments in the preset time period before the current moment, β 21 is the fault risk value of the branch circuit with ordinal number 2 at the first moment in the preset time period before the current moment, β 22 is the fault risk value of the branch circuit with ordinal number 2 at the second moment in the preset time period before the current moment, β 2m is the fault risk value of the branch circuit with ordinal number 2 at the mth moment in the preset time period before the current moment, β r1 is the fault risk value of the branch circuit with ordinal number r at the first moment in the preset time period before the current moment, r is the number of all branch circuits, β r2 is the fault risk value of the branch circuit with ordinal number r at the second moment within the preset time period before the current moment, β rm is the fault risk value of the branch circuit with ordinal number r at the mth moment in the preset time period before the current moment.

[0045] Preferably, the intelligent power distribution control method of the power distribution control box obtains the intelligent power distribution control result of the power distribution control box at the current moment based on the power distribution analysis matrix of the power distribution control box at the current moment, including:

[0046] The mean value of all matrix elements of each column matrix of the power distribution analysis matrix of the power distribution control box at the current moment is regarded as the analysis fault risk value of the branch circuit corresponding to the corresponding column matrix, so as to obtain the analysis fault risk values ​​of all branch circuits;

[0047] Determine whether the quotient of the analyzed fault risk value of each branch circuit and the total number of circuit breakers on the corresponding branch circuit is greater than the sum of the preset coefficient and the rank of the distribution analysis matrix of the distribution control box at the current moment. If so, adjust the opening and closing states of all circuit breakers on the corresponding branch circuit to non-closed; otherwise, adjust the opening and closing states of all circuit breakers on the corresponding branch circuit to closed. The result of adjusting the opening and closing states of all circuit breakers on all branch circuits is used as the intelligent distribution control result of the distribution control box at the current moment.

[0048] The present invention provides an intelligent power distribution control system for a power distribution control box, which is used to execute any one of the intelligent power distribution control methods for a power distribution control box in embodiments 1 to 9, including:

[0049] A processing module, used to obtain the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in a preset time period before the current moment based on the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment;

[0050] A drawing module, used to obtain a voltage waveform and a current waveform of each circuit breaker at the current moment based on the real-time processing parameters of each circuit breaker at all moments in a preset time period before the current moment, and to obtain all circuit access point parameters of each circuit breaker at the current moment based on the voltage waveform and the current waveform of each circuit breaker at the current moment;

[0051] A calculation module, for obtaining an access node diagram of a power distribution control box at each moment in a preset time period before the current moment based on the actual opening and closing states of all circuit breakers at each moment in a preset time period before the current moment, and obtaining a fault risk value of all branch circuits at each moment in a preset time period before the current moment based on the access node diagram of the power distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment;

[0052] The control module is used to obtain the distribution analysis matrix of the distribution control box at the current moment based on the fault risk values ​​of all branch circuits at all moments in a preset time period before the current moment, and obtain the intelligent distribution control result of the distribution control box at the current moment based on the distribution analysis matrix of the distribution control box at the current moment.

[0053] The beneficial effects of the present invention compared with the prior art are as follows: according to the status information and real-time parameters of all circuit breakers in the distribution control box at each moment in the preset time period before the current moment, the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in the preset time period before the current moment are accurately obtained, which is convenient for drawing subsequent waveform diagrams and access node diagrams, and then according to the real-time processing parameters of each circuit breaker at all moments in the preset time period before the current moment, the voltage waveform diagram and current waveform diagram of each circuit breaker at the current moment are obtained, and according to the voltage waveform diagram and current waveform diagram of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are accurately obtained, and the parameters used to evaluate the circuit state of the circuit access point of each circuit breaker at the current moment are accurately obtained, which is convenient for calculating the subsequent fault risk value, according to the actual status of all circuit breakers at each moment in the preset time period before the current moment Open and closed states, obtain the access node diagram of the distribution control box at each moment in the preset time period before the current moment, and then obtain the fault risk value of all branch circuits at each moment in the preset time period before the current moment according to the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, so as to quantify the possibility of the risk of failure of each branch circuit at each moment in the preset time period before the current moment, and finally obtain the distribution analysis matrix of the distribution control box at the current moment according to the fault risk values ​​of all branch circuits at all moments in the preset time period before the current moment, and obtain the intelligent distribution control result of the distribution control box at the current moment according to the distribution analysis matrix of the distribution control box at the current moment, so as to realize the automatic adjustment of all circuit breakers in the distribution control box, effectively reduce the number of failures and downtime, and reduce the operation and maintenance costs.

[0054] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structure specifically pointed out in the written application document.

[0055] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0057] Figure 1 This is a flow chart of an intelligent power distribution control method for a power distribution control box in an embodiment of the present invention;

[0058] Figure 2It is a schematic diagram of an intelligent power distribution control system of a power distribution control box in an embodiment of the present invention. DETAILED DESCRIPTION

[0059] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0060] Embodiment 1:

[0061] The present invention provides an intelligent power distribution control method for a power distribution control box, referring to Figure 1 ,include:

[0062] S1: Based on the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, obtain the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in a preset time period before the current moment;

[0063] S2: based on the real-time processing parameters of each circuit breaker at all times within a preset time period before the current moment, obtaining the voltage waveform and current waveform of each circuit breaker at the current moment, and based on the voltage waveform and current waveform of each circuit breaker at the current moment, obtaining all circuit access point parameters of each circuit breaker at the current moment;

[0064] S3: Based on the actual opening and closing states of all circuit breakers at each moment in the preset time period before the current moment, obtain the access node diagram of the distribution control box at each moment in the preset time period before the current moment, and based on the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, obtain the fault risk value of all branch circuits at each moment in the preset time period before the current moment;

[0065] S4: Based on the fault risk values ​​of all branch circuits at all times within a preset time period before the current moment, obtain the distribution analysis matrix of the distribution control box at the current moment, and based on the distribution analysis matrix of the distribution control box at the current moment, obtain the intelligent distribution control result of the distribution control box at the current moment.

[0066] In this embodiment, the power distribution control box is a small control distribution box containing multiple circuit breakers, which is mainly used to distribute and control electrical energy to specific circuits to ensure safe, stable and efficient power supply.

[0067] In this embodiment, the circuit breaker is the main component of the power distribution cabinet. Commonly used circuit breakers include air switches, leakage switches, dual power automatic transfer switches, etc. In this application document, a single circuit breaker only needs to connect one branch circuit.

[0068] In this embodiment, the preset time period is a time period preset to obtain status information and real-time parameters of all circuit breakers in the power distribution control box, for example, 30 minutes.

[0069] In this embodiment, each moment is a moment selected from a preset time period before the current moment, and the time length between each adjacent moment is the same.

[0070] In this embodiment, the actual opening and closing state is the opening and closing state that the circuit breaker should actually maintain, which is obtained based on the fault alarm situation of the circuit breaker at each moment in a preset time period before the current moment.

[0071] In this embodiment, the real-time processing parameters are processing values ​​obtained based on the real-time parameters of each circuit breaker in the distribution control box at each moment in the preset time period before the current moment, which can correctly reflect the real-time parameters of each circuit breaker at each moment in the preset time period before the current moment.

[0072] In this embodiment, the voltage waveform of each circuit breaker at the current moment is a waveform obtained based on the real-time processing parameters of each circuit breaker at all moments in the preset time period before the current moment, and can accurately reflect the voltage change trend of each circuit breaker in the preset time period before the current moment.

[0073] In this embodiment, the current waveform of each circuit breaker at the current moment is a waveform obtained based on the real-time processing parameters of each circuit breaker at all moments in the preset time period before the current moment, which can accurately reflect the current change trend of each circuit breaker in the preset time period before the current moment.

[0074] In this embodiment, all circuit access point parameters of each circuit breaker at the current moment are parameters obtained based on the voltage waveform and current waveform of each circuit breaker at the current moment to evaluate the circuit state of the circuit access point of each circuit breaker at the current moment (the location point of the load of the branch circuit closest to the outlet terminal of the corresponding circuit breaker on the branch circuit where each circuit breaker is located), wherein all circuit access point parameters include the access point voltage fluctuation peak value, the access point voltage peak time, the access point current fluctuation peak value and the access point current peak time.

[0075] In this embodiment, the access node diagram is a graphical representation of the circuit breaker access structure formed by the power distribution control box based on the actual opening and closing states of all circuit breakers at each moment in a preset time period before the current moment.

[0076] In this embodiment, the fault risk value is a probability value obtained based on the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, which can characterize the risk of fault occurrence (such as circuit breaking, overload, etc.) of each branch circuit at each moment in the preset time period before the current moment.

[0077] In this embodiment, the power distribution analysis matrix of the distribution control box at the current moment is a matrix constructed by using the fault risk values ​​of all branch circuits at all times within a preset time period before the current moment as matrix elements, which can analyze the intelligent power distribution control results of the distribution control box at the current moment.

[0078] In this embodiment, the intelligent power distribution control result of the power distribution control box at the current moment is the result obtained after adjusting the opening and closing states of all circuit breakers on all branch circuits.

[0079] The beneficial effects of the above technology are: according to the status information and real-time parameters of all circuit breakers in the distribution control box at each moment in the preset time period before the current moment, the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in the preset time period before the current moment are accurately obtained, which is convenient for the subsequent drawing of waveform diagrams and access node diagrams, and then according to the real-time processing parameters of each circuit breaker at all moments in the preset time period before the current moment, the voltage waveform diagram and current waveform diagram of each circuit breaker at the current moment are obtained, and according to the voltage waveform diagram and current waveform diagram of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are accurately obtained, and the parameters used to evaluate the circuit status of the circuit access point of each circuit breaker at the current moment are accurately obtained, which is convenient for the subsequent calculation of fault risk values, according to the actual opening and closing status of all circuit breakers at each moment in the preset time period before the current moment , obtain the access node diagram of the distribution control box at each moment in the preset time period before the current moment, and then obtain the fault risk value of all branch circuits at each moment in the preset time period before the current moment according to the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, so as to quantify the possibility of the risk of failure of each branch circuit at each moment in the preset time period before the current moment, and finally obtain the distribution analysis matrix of the distribution control box at the current moment according to the fault risk values ​​of all branch circuits at all moments in the preset time period before the current moment, and obtain the intelligent distribution control result of the distribution control box at the current moment according to the distribution analysis matrix of the distribution control box at the current moment, so as to realize the automatic adjustment of all circuit breakers in the distribution control box, effectively reduce the number of failures and downtime, and reduce the operation and maintenance costs.

[0080] Embodiment 2:

[0081] Based on Example 1, the intelligent power distribution control method of the power distribution control box, S1: based on the state information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, obtain the actual opening and closing state and real-time processing parameters of all circuit breakers at each moment in a preset time period before the current moment, including:

[0082] Obtain the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, where the status information includes the opening and closing status and fault alarm status, and the real-time parameters include the real-time voltage parameters and real-time current parameters;

[0083] When the fault alarm situation of each circuit breaker at each moment in the preset time period before the current moment is that there is no fault alarm, the opening and closing state at the corresponding moment is regarded as the actual opening and closing state of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment; when the fault alarm situation of each circuit breaker at each moment in the preset time period before the current moment is that there is a fault alarm, the manually set opening and closing state at the corresponding moment is regarded as the actual opening and closing state of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment;

[0084] Based on the real-time parameters of all circuit breakers at all times within a preset time period before the current time, the real-time processing parameters of all circuit breakers at each time within the preset time period before the current time are obtained.

[0085] In this embodiment, the opening and closing state refers to the opening and closing state of the circuit breaker, including closed and non-closed.

[0086] In this embodiment, the fault alarm situation is the fault alarm situation of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, and the fault alarm situation includes no fault alarm and a fault alarm.

[0087] In this embodiment, the real-time voltage parameter is a real-time voltage parameter of each circuit breaker in the power distribution control box at each moment in a preset time period before the current moment.

[0088] In this embodiment, the real-time current parameter is a real-time current parameter of each circuit breaker in the power distribution control box at each moment in a preset time period before the current moment.

[0089] In this embodiment, the manually set opening and closing state is the opening and closing state of the corresponding circuit breaker after manual intervention analysis and adjustment when the fault alarm situation of each circuit breaker at each moment within a preset time period before the current moment is a fault alarm.

[0090] The beneficial effects of the above technology are: according to the opening and closing status and fault alarm status of all circuit breakers in the distribution control box at each moment in the preset time period before the current moment, the actual opening and closing status of all circuit breakers at each moment in the preset time period before the current moment is accurately obtained, which is convenient for the subsequent drawing of the access node diagram, and according to the real-time parameters of all circuit breakers at all moments in the preset time period before the current moment, the real-time processing parameters of all circuit breakers at each moment in the preset time period before the current moment are obtained, which is convenient for the subsequent drawing of the waveform diagram.

[0091] Embodiment 3:

[0092] On the basis of Example 2, the intelligent power distribution control method of the power distribution control box obtains the real-time processing parameters of all circuit breakers at each moment in the preset time period before the current moment based on the real-time parameters of all circuit breakers at all moments in the preset time period before the current moment, including:

[0093] Determine whether the difference between the real-time voltage parameter of each circuit breaker at each moment within a preset time period before the current moment and the real-time voltage parameter of all adjacent moments of the corresponding moment is greater than a preset voltage difference threshold; if so, take the average of the real-time voltage parameters of all adjacent moments of the corresponding moment as the real-time voltage processing parameter of the corresponding circuit breaker at the corresponding moment within the preset time period before the current moment; otherwise, take the real-time voltage parameter at the corresponding moment as the real-time voltage processing parameter of the corresponding circuit breaker at the corresponding moment within the preset time period before the current moment;

[0094] Determine whether the difference between the real-time current parameter of each circuit breaker at each moment in the preset time period before the current moment and the real-time current parameter of all adjacent moments of the corresponding moment is greater than the preset current difference threshold; if so, take the average of the real-time current parameters of all adjacent moments of the corresponding moment as the real-time current processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment; otherwise, take the real-time current parameter at the corresponding moment as the real-time current processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment;

[0095] The real-time voltage processing parameters and the real-time current processing parameters of each circuit breaker at each moment in the preset time period before the current moment are used as the real-time processing parameters of each circuit breaker at each moment in the preset time period before the current moment.

[0096] In this embodiment, the preset voltage difference threshold is a voltage difference threshold that is preset to obtain the real-time voltage processing parameters of all circuit breakers at each moment within a preset time period before the current moment.

[0097] In this embodiment, the preset current difference threshold is a current difference threshold that is preset to obtain the real-time current processing parameters of all circuit breakers at each moment in a preset time period before the current moment.

[0098] The beneficial effects of the above technology are: according to the real-time voltage parameters of each circuit breaker at each moment in the preset time period before the current moment and the preset voltage difference threshold, the real-time voltage processing parameters of all circuit breakers at each moment in the preset time period before the current moment are accurately obtained, and according to the real-time current parameters of each circuit breaker at each moment in the preset time period before the current moment and the preset current difference threshold, the real-time current processing parameters of all circuit breakers at each moment in the preset time period before the current moment are accurately obtained. This embodiment gives in detail a specific method for obtaining the real-time processing parameters of all circuit breakers at each moment in the preset time period before the current moment based on the real-time parameters of all circuit breakers at all moments in the preset time period before the current moment.

[0099] Embodiment 4:

[0100] Based on Example 1, the intelligent power distribution control method of the power distribution control box, S2: based on the real-time processing parameters of each circuit breaker at all times within a preset time period before the current moment, obtain the voltage waveform and current waveform of each circuit breaker at the current moment, and based on the voltage waveform and current waveform of each circuit breaker at the current moment, obtain all circuit access point parameters of each circuit breaker at the current moment, including:

[0101] Taking all the moments of each circuit breaker in a preset time period before the current moment as the horizontal axis value and the real-time voltage processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment as the vertical axis value, all the analyzed voltage points of each circuit breaker at the current moment are obtained;

[0102] Taking all the moments of each circuit breaker in a preset time period before the current moment as the horizontal axis value and the real-time current processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment as the vertical axis value, all the analysis current points of each circuit breaker at the current moment are obtained;

[0103] All analyzed voltage points of each circuit breaker at the current moment are sequentially connected from small to large according to the time sequence corresponding to the horizontal coordinate value, so as to obtain the voltage waveform of each circuit breaker at the current moment, and all analyzed current points of each circuit breaker at the current moment are sequentially connected from small to large according to the time sequence corresponding to the horizontal coordinate value, so as to obtain the current waveform of each circuit breaker at the current moment;

[0104] Based on the voltage waveform diagram and the current waveform diagram of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are obtained.

[0105] The beneficial effects of the above technology are: according to the real-time voltage processing parameters and real-time current processing parameters of each circuit breaker at all times within a preset time period before the current moment, all analysis voltage points and all analysis current points of each circuit breaker at the current moment are accurately obtained, and then according to all analysis voltage points and all analysis current points of each circuit breaker at the current moment, the voltage waveform and current waveform of each circuit breaker at the current moment are obtained, and according to the voltage waveform and current waveform of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are accurately obtained, which is convenient for the calculation of subsequent fault risk values.

[0106] Embodiment 5:

[0107] On the basis of Example 4, the intelligent power distribution control method of the power distribution control box obtains all circuit access point parameters of each circuit breaker at the current moment based on the voltage waveform and current waveform of each circuit breaker at the current moment, including:

[0108] The analysis voltage point with the largest difference in ordinate value between all analysis voltage points of each circuit breaker at the current moment and the reference voltage point of the corresponding circuit breaker at the current moment is regarded as the maximum difference voltage point of the corresponding circuit breaker at the current moment, the difference between the abscissa value of the maximum difference voltage point of each circuit breaker at the current moment and the reference voltage point of the corresponding circuit breaker at the current moment is regarded as the access point voltage peak duration of the corresponding circuit breaker at the current moment, and the quotient of the integral of the waveform segment between the maximum difference voltage point and the reference voltage point in the voltage waveform diagram of each circuit breaker at the current moment and the access point voltage peak duration of the corresponding circuit breaker at the current moment is regarded as the access point voltage fluctuation peak value of the corresponding circuit breaker at the current moment;

[0109] The analysis current point with the largest difference in ordinate value between all analysis current points of each circuit breaker at the current moment and the reference current point of the corresponding circuit breaker at the current moment is regarded as the maximum difference current point of the corresponding circuit breaker at the current moment, the difference between the abscissa value of the maximum difference current point of each circuit breaker at the current moment and the reference current point of the corresponding circuit breaker at the current moment is regarded as the access point current peak duration of the corresponding circuit breaker at the current moment, and the quotient of the integral of the waveform segment between the maximum difference current point and the reference current point in the current waveform diagram of each circuit breaker at the current moment and the access point current peak duration of the corresponding circuit breaker at the current moment is regarded as the access point current fluctuation peak value of the corresponding circuit breaker at the current moment;

[0110] The access point voltage fluctuation peak value, access point voltage peak duration, access point current fluctuation peak value and access point current peak duration of each circuit breaker at the current moment are used as all circuit access point parameters of each circuit breaker at the current moment.

[0111] The beneficial effects of the above technology are: according to the voltage waveform and current waveform of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are accurately obtained, and the parameters used to evaluate the circuit state of the circuit access point of each circuit breaker at the current moment are accurately obtained, which is convenient for the calculation of the subsequent fault risk value. This embodiment gives in detail a specific method for obtaining all circuit access point parameters of each circuit breaker at the current moment based on the voltage waveform and current waveform of each circuit breaker at the current moment.

[0112] Embodiment 6:

[0113] On the basis of Example 1, the intelligent power distribution control method of the power distribution control box obtains the access node diagram of the power distribution control box at each moment in the preset time period before the current moment based on the actual opening and closing states of all circuit breakers at each moment in the preset time period before the current moment, including:

[0114] Get the actual location of the circuit access points of all circuit breakers in the power distribution control box;

[0115] Determine whether the actual opening and closing state of each circuit breaker at each moment in the preset time period before the current moment is closed; if so, use the actual position of the circuit access point of the corresponding circuit breaker as the judgment node at the corresponding moment in the preset time period before the current moment; otherwise, use the actual position of the circuit access point of the corresponding circuit breaker as the non-closed node at the corresponding moment in the preset time period before the current moment;

[0116] Obtain all branch circuits of the power distribution control box, and determine all circuit breakers on each branch circuit as mutually related circuit breakers;

[0117] If the circuit breaker corresponding to each judgment node at each moment in the preset time period before the current moment and the circuit breakers corresponding to all non-closed nodes at the corresponding moment in the preset time period before the current moment are not mutually associated circuit breakers, then the corresponding judgment node at the corresponding moment in the preset time period before the current moment is regarded as the connection node at the corresponding moment in the preset time period before the current moment;

[0118] A graph of the mapping positions of all connection nodes at each moment in the preset time period before the current moment on the preset two-dimensional coordinate system is used as the access node graph of the distribution control box at each moment in the preset time period before the current moment.

[0119] In this embodiment, the actual location of the circuit access point of the circuit breaker is the actual geographical location of the branch circuit load closest to the outlet terminal of the corresponding circuit breaker on the branch circuit where the circuit breaker is located.

[0120] In this embodiment, the mutually related circuit breakers are all the circuit breakers on each branch circuit.

[0121] In this embodiment, the preset two-dimensional coordinate system is a coordinate system that is preset to obtain an access node diagram of the power distribution control box at each moment in a preset time period before the current moment.

[0122] In this embodiment, the mapping position is the position of the connection node mapping (spatial mapping) on ​​the preset two-dimensional coordinate system.

[0123] The beneficial effects of the above technology are: according to the actual opening and closing states of all circuit breakers at each moment in the preset time period before the current moment, all connection nodes at each moment in the preset time period before the current moment are accurately obtained, and then according to all connection nodes at each moment in the preset time period before the current moment and the preset two-dimensional coordinate system, the access node diagram of the distribution control box at each moment in the preset time period before the current moment is accurately obtained. This embodiment gives in detail a specific method for obtaining the access node diagram of the distribution control box at each moment in the preset time period before the current moment based on the actual opening and closing states of all circuit breakers at each moment in the preset time period before the current moment.

[0124] Embodiment 7:

[0125] On the basis of Example 6, the intelligent power distribution control method of the power distribution control box obtains the fault risk value of all branch circuits at each moment in the preset time period before the current moment based on the access node diagram of the power distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, including:

[0126] Obtain the basic electrical parameters of all circuit breakers, including rated voltage, rated current and rated short-time duration;

[0127] The connection nodes corresponding to the circuit breakers of all the connection nodes at each moment in the preset time period before the current moment, and the connection nodes corresponding to the circuit breakers in each branch circuit, are regarded as the connection nodes of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment;

[0128] If the number of connection nodes of each branch circuit at each moment in the preset time period before the current moment is not 0, then all the remaining connection nodes, except for all the connection nodes of each branch circuit at the corresponding moment in the preset time period before the current moment, are regarded as the reference connection nodes of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment, and the circuit breaker corresponding to the reference connection node closest to the center of the covering circle of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment among all the reference connection nodes of each branch circuit at each moment in the preset time period before the current moment is regarded as the standard reference circuit breaker of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment. Based on all the circuit access point parameters of all the circuit breakers on each branch circuit at the current moment, the basic electrical parameters of all the circuit breakers and the standard reference circuit breaker of the corresponding branch circuit at each moment in the preset time period before the current moment, the fault risk value of each branch circuit at each moment in the preset time period before the current moment is obtained, which is:

[0129]

[0130] Where β is the fault risk value of the currently calculated branch circuit at the current calculation moment within the preset time period before the current moment, u0 is the real-time voltage processing parameter of the standard reference circuit breaker of the currently calculated branch circuit at the current calculation moment within the preset time period before the current moment, i0 is the real-time current processing parameter of the standard reference circuit breaker of the currently calculated branch circuit at the current calculation moment within the preset time period before the current moment, U j is the rated voltage of the jth circuit breaker on the branch circuit currently being calculated, I j is the rated current of the jth circuit breaker on the branch circuit currently being calculated, T j is the rated short-time duration of the jth circuit breaker on the branch circuit currently being calculated, n is the total number of circuit breakers on the branch circuit currently being calculated, and u j is the peak voltage fluctuation of the access point of the jth circuit breaker on the branch circuit at the current moment, i j is the peak current fluctuation of the jth circuit breaker on the branch circuit at the current moment, t j1 is the peak voltage duration of the jth circuit breaker on the branch circuit at the current moment, t j2 is the peak current duration of the access point of the j-th circuit breaker on the branch circuit currently calculated at the current moment, ln is the natural logarithm, and the value of the natural constant e is 2.718;

[0131] If the connection node of each branch circuit at each moment in the preset time period before the current moment is 0, 0 is used as the fault risk value of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment.

[0132] In this embodiment, the rated voltage is the highest voltage at which the circuit breaker can operate normally.

[0133] In this embodiment, the rated current is the effective value of the current that the circuit breaker can continuously pass under specified use and performance conditions.

[0134] In this embodiment, the rated short-time duration is the length of time that the circuit breaker can carry the rated short-time withstand current (the maximum current that the circuit breaker can carry in the closed state under specified use conditions).

[0135] In this embodiment, the center of the covering circle of the branch circuit at each moment within the preset time period before the current moment is the center of a circle with the minimum radius that can contain the mapping positions of all connecting nodes of the branch circuit at the corresponding moment within the preset time period before the current moment mapped on the preset two-dimensional coordinate system, which is obtained based on the existing minimum enclosing circle algorithm and the mapping positions of all connecting nodes of the branch circuit at the corresponding moment within the preset time period before the current moment mapped on the preset two-dimensional coordinate system.

[0136] The beneficial effects of the above technology are: based on the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, the fault risk value of all branch circuits at each moment in the preset time period before the current moment is obtained, and the possibility of the risk of failure of each branch circuit at each moment in the preset time period before the current moment is quantified. This embodiment gives in detail a specific method for obtaining the fault risk value of all branch circuits at each moment in the preset time period before the current moment based on the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment.

[0137] Embodiment 8:

[0138] On the basis of Example 1, the intelligent power distribution control method of the power distribution control box obtains the power distribution analysis matrix of the power distribution control box at the current moment based on the fault risk values ​​of all branch circuits at all times within a preset time period before the current moment, including:

[0139] According to the initial coverage area of ​​all branch circuits, the ordinal definition is performed in order from large to small, starting from 1, to obtain the ordinal definition results of all branch circuits, and based on the fault risk values ​​of all branch circuits at all times in the preset time period before the current moment and the ordinal definition results of all branch circuits, the power distribution analysis matrix of the distribution control box at the current moment is obtained, which is:

[0140]

[0141] Among them, P is the power distribution analysis matrix of the power distribution control box at the current moment, β 11 is the fault risk value of the branch circuit with ordinal number 1 at the first moment in the preset time period before the current moment, β 12 is the fault risk value of the branch circuit with ordinal number 1 at the second moment in the preset time period before the current moment, β 1m is the fault risk value of the branch circuit with ordinal number 1 at the mth moment in the preset time period before the current moment, m is the number of all moments in the preset time period before the current moment, β 21 is the fault risk value of the branch circuit with ordinal number 2 at the first moment in the preset time period before the current moment, β 22 is the fault risk value of the branch circuit with ordinal number 2 at the second moment in the preset time period before the current moment, β 2m is the fault risk value of the branch circuit with ordinal number 2 at the mth moment in the preset time period before the current moment, β r1 is the fault risk value of the branch circuit with ordinal number r at the first moment in the preset time period before the current moment, r is the number of all branch circuits, β r2 is the fault risk value of the branch circuit with ordinal number r at the second moment within the preset time period before the current moment, β rm is the fault risk value of the branch circuit with ordinal number r at the mth moment in the preset time period before the current moment.

[0142] In this embodiment, the initial coverage area of ​​the branch circuit is the actual geographical coverage area of ​​the branch circuit detected and demarcated in advance.

[0143] The beneficial effects of the above technology are: based on the fault risk values ​​of all branch circuits at all times within a preset time period before the current moment, the distribution analysis matrix of the distribution control box at the current moment is obtained, which is convenient for subsequent acquisition of the intelligent distribution control results of the distribution control box at the current moment. This embodiment gives in detail a specific method for constructing a distribution analysis matrix of the distribution control box at the current moment.

[0144] Embodiment 9:

[0145] On the basis of Example 1, the intelligent power distribution control method of the power distribution control box obtains the intelligent power distribution control result of the power distribution control box at the current moment based on the power distribution analysis matrix of the power distribution control box at the current moment, including:

[0146] The mean value of all matrix elements of each column matrix of the power distribution analysis matrix of the power distribution control box at the current moment is regarded as the analysis fault risk value of the branch circuit corresponding to the corresponding column matrix, so as to obtain the analysis fault risk values ​​of all branch circuits;

[0147] Determine whether the quotient of the analyzed fault risk value of each branch circuit and the total number of circuit breakers on the corresponding branch circuit is greater than the sum of the preset coefficient and the rank of the distribution analysis matrix of the distribution control box at the current moment. If so, adjust the opening and closing states of all circuit breakers on the corresponding branch circuit to non-closed; otherwise, adjust the opening and closing states of all circuit breakers on the corresponding branch circuit to closed. The result of adjusting the opening and closing states of all circuit breakers on all branch circuits is used as the intelligent distribution control result of the distribution control box at the current moment.

[0148] In this embodiment, the preset coefficient is a preset coefficient used to determine whether to adjust the opening and closing states of all circuit breakers on the branch circuit.

[0149] The beneficial effects of the above technology are: according to the power distribution analysis matrix and preset coefficients of the power distribution control box at the current moment, the intelligent power distribution control result of the power distribution control box at the current moment is accurately obtained, and the automatic adjustment of all circuit breakers in the power distribution control box is realized, which effectively reduces the number of faults and downtime, and reduces operation and maintenance costs.

[0150] Embodiment 10:

[0151] The present invention provides an intelligent power distribution control system for a power distribution control box, which is used to execute any one of the intelligent power distribution control methods for a power distribution control box in embodiments 1 to 9, referring to Figure 2 ,include:

[0152] A processing module, used to obtain the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in a preset time period before the current moment based on the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment;

[0153] A drawing module, used to obtain a voltage waveform and a current waveform of each circuit breaker at the current moment based on the real-time processing parameters of each circuit breaker at all moments in a preset time period before the current moment, and to obtain all circuit access point parameters of each circuit breaker at the current moment based on the voltage waveform and the current waveform of each circuit breaker at the current moment;

[0154] A calculation module, for obtaining an access node diagram of a power distribution control box at each moment in a preset time period before the current moment based on the actual opening and closing states of all circuit breakers at each moment in a preset time period before the current moment, and obtaining a fault risk value of all branch circuits at each moment in a preset time period before the current moment based on the access node diagram of the power distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment;

[0155] The control module is used to obtain the distribution analysis matrix of the distribution control box at the current moment based on the fault risk values ​​of all branch circuits at all moments in a preset time period before the current moment, and obtain the intelligent distribution control result of the distribution control box at the current moment based on the distribution analysis matrix of the distribution control box at the current moment.

[0156] The beneficial effects of the above technology are: according to the status information and real-time parameters of all circuit breakers in the distribution control box at each moment in the preset time period before the current moment, the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in the preset time period before the current moment are accurately obtained, which is convenient for the subsequent drawing of waveform diagrams and access node diagrams, and then according to the real-time processing parameters of each circuit breaker at all moments in the preset time period before the current moment, the voltage waveform diagram and current waveform diagram of each circuit breaker at the current moment are obtained, and according to the voltage waveform diagram and current waveform diagram of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are accurately obtained, and the parameters used to evaluate the circuit status of the circuit access point of each circuit breaker at the current moment are accurately obtained, which is convenient for the subsequent calculation of fault risk values, according to the actual opening and closing status of all circuit breakers at each moment in the preset time period before the current moment , obtain the access node diagram of the distribution control box at each moment in the preset time period before the current moment, and then obtain the fault risk value of all branch circuits at each moment in the preset time period before the current moment according to the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, so as to quantify the possibility of the risk of failure of each branch circuit at each moment in the preset time period before the current moment, and finally obtain the distribution analysis matrix of the distribution control box at the current moment according to the fault risk values ​​of all branch circuits at all moments in the preset time period before the current moment, and obtain the intelligent distribution control result of the distribution control box at the current moment according to the distribution analysis matrix of the distribution control box at the current moment, so as to realize the automatic adjustment of all circuit breakers in the distribution control box, effectively reduce the number of failures and downtime, and reduce the operation and maintenance costs.

[0157] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention, and the present invention is also intended to include these changes and modifications.

Claims

1. An intelligent power distribution control method for a power distribution control box, characterized in that: include: S1: Based on the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, obtain the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in a preset time period before the current moment; S2: based on the real-time processing parameters of each circuit breaker at all times within a preset time period before the current moment, obtaining the voltage waveform and current waveform of each circuit breaker at the current moment, and based on the voltage waveform and current waveform of each circuit breaker at the current moment, obtaining all circuit access point parameters of each circuit breaker at the current moment; S3: Based on the actual opening and closing states of all circuit breakers at each moment in the preset time period before the current moment, obtain the access node diagram of the distribution control box at each moment in the preset time period before the current moment, and based on the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, obtain the fault risk value of all branch circuits at each moment in the preset time period before the current moment; S4: Based on the fault risk values ​​of all branch circuits at all times within a preset time period before the current moment, obtain the distribution analysis matrix of the distribution control box at the current moment, and based on the distribution analysis matrix of the distribution control box at the current moment, obtain the intelligent distribution control result of the distribution control box at the current moment.

2. The intelligent power distribution control method of the power distribution control box according to claim 1 is characterized in that: S1: Based on the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in the preset time period before the current moment, the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in the preset time period before the current moment are obtained, including: Obtain the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment, where the status information includes the opening and closing status and fault alarm status, and the real-time parameters include the real-time voltage parameters and real-time current parameters; When the fault alarm situation of each circuit breaker at each moment in the preset time period before the current moment is that there is no fault alarm, the opening and closing state at the corresponding moment is regarded as the actual opening and closing state of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment; when the fault alarm situation of each circuit breaker at each moment in the preset time period before the current moment is that there is a fault alarm, the manually set opening and closing state at the corresponding moment is regarded as the actual opening and closing state of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment; Based on the real-time parameters of all circuit breakers at all times within a preset time period before the current time, the real-time processing parameters of all circuit breakers at each time within the preset time period before the current time are obtained.

3. The intelligent power distribution control method of the power distribution control box according to claim 2 is characterized in that: Based on the real-time parameters of all circuit breakers at all times in a preset time period before the current time, the real-time processing parameters of all circuit breakers at each time in the preset time period before the current time are obtained, including: Determine whether the difference between the real-time voltage parameter of each circuit breaker at each moment within a preset time period before the current moment and the real-time voltage parameter of all adjacent moments of the corresponding moment is greater than a preset voltage difference threshold; if so, take the average of the real-time voltage parameters of all adjacent moments of the corresponding moment as the real-time voltage processing parameter of the corresponding circuit breaker at the corresponding moment within the preset time period before the current moment; otherwise, take the real-time voltage parameter at the corresponding moment as the real-time voltage processing parameter of the corresponding circuit breaker at the corresponding moment within the preset time period before the current moment; Determine whether the difference between the real-time current parameter of each circuit breaker at each moment in the preset time period before the current moment and the real-time current parameter of all adjacent moments of the corresponding moment is greater than the preset current difference threshold; if so, take the average of the real-time current parameters of all adjacent moments of the corresponding moment as the real-time current processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment; otherwise, take the real-time current parameter at the corresponding moment as the real-time current processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment; The real-time voltage processing parameters and the real-time current processing parameters of each circuit breaker at each moment in the preset time period before the current moment are used as the real-time processing parameters of each circuit breaker at each moment in the preset time period before the current moment.

4. The intelligent power distribution control method of the power distribution control box according to claim 1, characterized in that: S2: Based on the real-time processing parameters of each circuit breaker at all times within a preset time period before the current moment, the voltage waveform and current waveform of each circuit breaker at the current moment are obtained, and based on the voltage waveform and current waveform of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are obtained, including: Taking all the moments of each circuit breaker in a preset time period before the current moment as the horizontal axis value and the real-time voltage processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment as the vertical axis value, all the analyzed voltage points of each circuit breaker at the current moment are obtained; Taking all the moments of each circuit breaker in a preset time period before the current moment as the horizontal axis value and the real-time current processing parameter of the corresponding circuit breaker at the corresponding moment in the preset time period before the current moment as the vertical axis value, all the analysis current points of each circuit breaker at the current moment are obtained; All analyzed voltage points of each circuit breaker at the current moment are sequentially connected from small to large according to the time sequence corresponding to the horizontal coordinate value, to obtain the voltage waveform of each circuit breaker at the current moment, and all analyzed current points of each circuit breaker at the current moment are sequentially connected from small to large according to the time sequence corresponding to the horizontal coordinate value, to obtain the current waveform of each circuit breaker at the current moment; Based on the voltage waveform diagram and the current waveform diagram of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are obtained.

5. The intelligent power distribution control method of the power distribution control box according to claim 4 is characterized in that: Based on the voltage waveform and current waveform of each circuit breaker at the current moment, all circuit access point parameters of each circuit breaker at the current moment are obtained, including: The analysis voltage point with the largest difference in ordinate value between all analysis voltage points of each circuit breaker at the current moment and the reference voltage point of the corresponding circuit breaker at the current moment is regarded as the maximum difference voltage point of the corresponding circuit breaker at the current moment, the difference between the abscissa value of the maximum difference voltage point of each circuit breaker at the current moment and the reference voltage point of the corresponding circuit breaker at the current moment is regarded as the access point voltage peak duration of the corresponding circuit breaker at the current moment, and the quotient of the integral of the waveform segment between the maximum difference voltage point and the reference voltage point in the voltage waveform diagram of each circuit breaker at the current moment and the access point voltage peak duration of the corresponding circuit breaker at the current moment is regarded as the access point voltage fluctuation peak value of the corresponding circuit breaker at the current moment; The analysis current point with the largest difference in ordinate value between all analysis current points of each circuit breaker at the current moment and the reference current point of the corresponding circuit breaker at the current moment is regarded as the maximum difference current point of the corresponding circuit breaker at the current moment, the difference between the abscissa value of the maximum difference current point of each circuit breaker at the current moment and the reference current point of the corresponding circuit breaker at the current moment is regarded as the access point current peak duration of the corresponding circuit breaker at the current moment, and the quotient of the integral of the waveform segment between the maximum difference current point and the reference current point in the current waveform diagram of each circuit breaker at the current moment and the access point current peak duration of the corresponding circuit breaker at the current moment is regarded as the access point current fluctuation peak value of the corresponding circuit breaker at the current moment; The access point voltage fluctuation peak value, access point voltage peak duration, access point current fluctuation peak value and access point current peak duration of each circuit breaker at the current moment are used as all circuit access point parameters of each circuit breaker at the current moment.

6. The intelligent power distribution control method of the power distribution control box according to claim 1, characterized in that: Based on the actual opening and closing states of all circuit breakers at each moment in a preset time period before the current moment, an access node diagram of the distribution control box at each moment in the preset time period before the current moment is obtained, including: Get the actual location of the circuit access points of all circuit breakers in the power distribution control box; Determine whether the actual opening and closing state of each circuit breaker at each moment in the preset time period before the current moment is closed; if so, use the actual position of the circuit access point of the corresponding circuit breaker as the judgment node at the corresponding moment in the preset time period before the current moment; otherwise, use the actual position of the circuit access point of the corresponding circuit breaker as the non-closed node at the corresponding moment in the preset time period before the current moment; Obtain all branch circuits of the power distribution control box, and determine all circuit breakers on each branch circuit as mutually related circuit breakers; If the circuit breaker corresponding to each judgment node at each moment in the preset time period before the current moment and the circuit breakers corresponding to all non-closed nodes at the corresponding moment in the preset time period before the current moment are not mutually associated circuit breakers, then the corresponding judgment node at the corresponding moment in the preset time period before the current moment is regarded as the connection node at the corresponding moment in the preset time period before the current moment; A graph of the mapping positions of all connection nodes at each moment in the preset time period before the current moment on the preset two-dimensional coordinate system is used as the access node graph of the distribution control box at each moment in the preset time period before the current moment.

7. The intelligent power distribution control method of the power distribution control box according to claim 6, characterized in that: Based on the access node diagram of the distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment, the fault risk value of all branch circuits at each moment in the preset time period before the current moment is obtained, including: Obtain the basic electrical parameters of all circuit breakers, including rated voltage, rated current and rated short-time duration; The connection nodes corresponding to the circuit breakers of all the connection nodes at each moment in the preset time period before the current moment, and the connection nodes corresponding to the circuit breakers in each branch circuit, are regarded as the connection nodes of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment; If the number of connection nodes of each branch circuit at each moment in the preset time period before the current moment is not 0, then all the remaining connection nodes, except for all the connection nodes of each branch circuit at the corresponding moment in the preset time period before the current moment, are regarded as the reference connection nodes of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment, and the circuit breaker corresponding to the reference connection node closest to the center of the covering circle of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment among all the reference connection nodes of each branch circuit at each moment in the preset time period before the current moment is regarded as the standard reference circuit breaker of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment. Based on all the circuit access point parameters of all the circuit breakers on each branch circuit at the current moment, the basic electrical parameters of all the circuit breakers and the standard reference circuit breaker of the corresponding branch circuit at each moment in the preset time period before the current moment, the fault risk value of each branch circuit at each moment in the preset time period before the current moment is obtained, which is: Where β is the fault risk value of the currently calculated branch circuit at the current calculation moment within the preset time period before the current moment, u0 is the real-time voltage processing parameter of the standard reference circuit breaker of the currently calculated branch circuit at the current calculation moment within the preset time period before the current moment, i0 is the real-time current processing parameter of the standard reference circuit breaker of the currently calculated branch circuit at the current calculation moment within the preset time period before the current moment, U j is the rated voltage of the jth circuit breaker on the branch circuit currently being calculated, I j is the rated current of the jth circuit breaker on the branch circuit currently being calculated, T j is the rated short-time duration of the jth circuit breaker on the branch circuit currently being calculated, n is the total number of circuit breakers on the branch circuit currently being calculated, and u j is the peak voltage fluctuation of the access point of the jth circuit breaker on the branch circuit at the current moment, i j is the peak current fluctuation of the jth circuit breaker on the branch circuit at the current moment, t j1 is the peak voltage duration of the jth circuit breaker on the branch circuit at the current moment, t j2 is the peak current duration of the access point of the j-th circuit breaker on the branch circuit currently calculated at the current moment, ln is the natural logarithm, and the value of the natural constant e is 2.718; If the connection node of each branch circuit at each moment in the preset time period before the current moment is 0, 0 is used as the fault risk value of the corresponding branch circuit at the corresponding moment in the preset time period before the current moment.

8. The intelligent power distribution control method of the power distribution control box according to claim 1, characterized in that: Based on the fault risk values ​​of all branch circuits at all times within a preset time period before the current time, the power distribution analysis matrix of the power distribution control box at the current time is obtained, including: According to the initial coverage area of ​​all branch circuits, the ordinal definition is performed in order from large to small, starting from 1, to obtain the ordinal definition results of all branch circuits, and based on the fault risk values ​​of all branch circuits at all times in the preset time period before the current moment and the ordinal definition results of all branch circuits, the power distribution analysis matrix of the distribution control box at the current moment is obtained, which is: Among them, P is the power distribution analysis matrix of the power distribution control box at the current moment, β 11 is the fault risk value of the branch circuit with ordinal number 1 at the first moment in the preset time period before the current moment, β 12 is the fault risk value of the branch circuit with ordinal number 1 at the second moment in the preset time period before the current moment, β 1m is the fault risk value of the branch circuit with ordinal number 1 at the mth moment in the preset time period before the current moment, m is the number of all moments in the preset time period before the current moment, β 21 is the fault risk value of the branch circuit with ordinal number 2 at the first moment in the preset time period before the current moment, β 22 is the fault risk value of the branch circuit with ordinal number 2 at the second moment in the preset time period before the current moment, β 2m is the fault risk value of the branch circuit with ordinal number 2 at the mth moment in the preset time period before the current moment, β r1 is the fault risk value of the branch circuit with ordinal number r at the first moment in the preset time period before the current moment, r is the number of all branch circuits, β r2 is the fault risk value of the branch circuit with ordinal number r at the second moment within the preset time period before the current moment, β rm is the fault risk value of the branch circuit with ordinal number r at the mth moment in the preset time period before the current moment.

9. The intelligent power distribution control method of the power distribution control box according to claim 1, characterized in that: Based on the power distribution analysis matrix of the power distribution control box at the current moment, the intelligent power distribution control result of the power distribution control box at the current moment is obtained, including: The mean value of all matrix elements of each column matrix of the power distribution analysis matrix of the power distribution control box at the current moment is regarded as the analysis fault risk value of the branch circuit corresponding to the corresponding column matrix, so as to obtain the analysis fault risk values ​​of all branch circuits; Determine whether the quotient of the analyzed fault risk value of each branch circuit and the total number of circuit breakers on the corresponding branch circuit is greater than the sum of the preset coefficient and the rank of the distribution analysis matrix of the distribution control box at the current moment. If so, adjust the opening and closing states of all circuit breakers on the corresponding branch circuit to non-closed; otherwise, adjust the opening and closing states of all circuit breakers on the corresponding branch circuit to closed. The result of adjusting the opening and closing states of all circuit breakers on all branch circuits is used as the intelligent distribution control result of the distribution control box at the current moment.

10. An intelligent power distribution control system for a power distribution control box, characterized in that: A method for intelligent power distribution control of a power distribution control box for executing any one of claims 1 to 9, comprising: A processing module, used to obtain the actual opening and closing status and real-time processing parameters of all circuit breakers at each moment in a preset time period before the current moment based on the status information and real-time parameters of all circuit breakers in the power distribution control box at each moment in a preset time period before the current moment; A drawing module, used to obtain a voltage waveform and a current waveform of each circuit breaker at the current moment based on the real-time processing parameters of each circuit breaker at all moments in a preset time period before the current moment, and to obtain all circuit access point parameters of each circuit breaker at the current moment based on the voltage waveform and the current waveform of each circuit breaker at the current moment; A calculation module, for obtaining an access node diagram of a power distribution control box at each moment in a preset time period before the current moment based on the actual opening and closing states of all circuit breakers at each moment in a preset time period before the current moment, and obtaining a fault risk value of all branch circuits at each moment in a preset time period before the current moment based on the access node diagram of the power distribution control box at each moment in the preset time period before the current moment and all circuit access point parameters of all circuit breakers at the current moment; The control module is used to obtain the distribution analysis matrix of the distribution control box at the current moment based on the fault risk values ​​of all branch circuits at all moments in a preset time period before the current moment, and obtain the intelligent distribution control result of the distribution control box at the current moment based on the distribution analysis matrix of the distribution control box at the current moment.

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