A method, device and storage medium for adjusting load of a ring network

Abstract

This invention discloses a method for adjusting the load of a ring network, comprising: acquiring the loads of the current trunk line, the next trunk line, and the previous trunk line respectively; if the current trunk line is overloaded relative to the next trunk line, then performing a first pre-adjustment on the current trunk line; if, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet a first adjustment condition, then adjusting the load of the current trunk line according to the first pre-adjustment method; if, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet a second adjustment condition, then performing a second pre-adjustment on the current trunk line; if, after the second pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line, then adjusting the load of the current trunk line according to the second pre-adjustment method; otherwise, adjusting the load of the current trunk line according to the first pre-adjustment method.

Description

Technical Field

[0001] This invention relates to the field of power supply technology, and in particular to a method, apparatus, equipment and storage medium for adjusting ring network loads. Background Technology

[0002] In terms of power supply lines, most towns and villages now have three to five power sources forming a ring network. However, the load is unevenly distributed among the lines, with some lines being overloaded and others lightly loaded. Especially in the summer evenings when a large number of appliances such as air conditioners are used, the load on the lines may increase dramatically in a short period of time, leading to low voltage problems at the end of the lines. This can affect electricity use in minor cases, or even burn out equipment and cause property damage accidents in serious cases.

[0003] Currently, there are several ways to address the uneven load distribution in ring networks: During peak electricity consumption periods, power rationing and outages can be implemented on some high-load lines to alleviate line pressure, but this can impact users' production and daily life. Alternatively, new dedicated lines and transformers can be built to transform loads at the end of the line into loads at the beginning, thus increasing the voltage of the original end load. However, this method involves huge investments and is not economical. Another approach is to increase the transformer tap level to forcibly raise the voltage, but this can cause excessively high voltage at the beginning load, potentially burning out electrical appliances or even causing personal injury. Yet another method is to manually switch the loads on heavy-load lines to light-load lines. However, due to the lack of a comprehensive analysis system, this can easily lead to problems such as lightly loaded lines becoming heavily loaded after the load switch, or switching the load from one heavy-load line to another, failing to truly solve the problem. Summary of the Invention

[0004] This invention provides a method, apparatus, device, and storage medium for adjusting the load of a ring network, so as to realize the automatic adjustment of overloaded lines in the ring network.

[0005] According to one aspect of the present invention, a method for adjusting the load of a ring network is provided, wherein the ring network consists of at least three trunk lines. Starting from any one trunk line in the ring network, the trunk lines are ordered in the direction of electrical energy flow, such that each trunk line intersects with the two trunk lines preceding and following it. Each trunk line includes three load segments, which, according to the direction of electrical energy flow, are a fixed load, a first variable load, and a second variable load, comprising:

[0006] The loads of the current trunk line, the next trunk line, and the previous trunk line are obtained respectively. If the current trunk line is overloaded relative to the next trunk line, the current trunk line is pre-adjusted.

[0007] If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the first adjustment conditions, then the current trunk line is instructed to adjust its load according to the first pre-adjustment method.

[0008] If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the second adjustment conditions, then the current trunk line will undergo a second pre-adjustment.

[0009] If, after the second pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line, then the current trunk line is adjusted according to the second pre-adjustment method; otherwise, the current trunk line is adjusted according to the first pre-adjustment method.

[0010] Furthermore, a first pre-adjustment is made to the current trunk line, including:

[0011] The second variable load of the current trunk line is switched to be powered by the power supply point corresponding to the next trunk line.

[0012] Furthermore, the first adjustment condition includes:

[0013] The current trunk line is not overloaded relative to the next trunk line, and the previous trunk line is not overloaded relative to the current trunk line; or

[0014] The current trunk line is overloaded relative to the next trunk line, but not overloaded relative to the previous trunk line.

[0015] Furthermore, the second adjustment condition includes:

[0016] The current trunk line is overloaded relative to both the next trunk line and the previous trunk line.

[0017] Furthermore, a second pre-adjustment is made to the current trunk line, including:

[0018] The first and second variable loads of the current trunk line are respectively supplied by the power supply points corresponding to the previous trunk line and the next trunk line.

[0019] Furthermore, the method also includes:

[0020] If, after the first pre-adjustment, the next main line is overloaded, or

[0021] If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the third adjustment condition, then no load adjustment will be performed on the current trunk line.

[0022] Furthermore, the third adjustment condition includes:

[0023] The current trunk line is not overloaded relative to the next trunk line, and the previous trunk line is overloaded relative to the current trunk line.

[0024] Furthermore, when no load adjustment is performed on the current trunk line, the method further includes:

[0025] The load of the current trunk line is compared with that of the previous trunk line. If the current trunk line is overloaded relative to the previous trunk line, a third pre-adjustment is performed on the current trunk line. If, after the third pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line, the load of the current trunk line is adjusted according to the third pre-adjustment method.

[0026] Furthermore, a third pre-adjustment is made to the current trunk line, including:

[0027] The first and second variable loads of the current trunk line are both supplied by the power source corresponding to the previous trunk line.

[0028] Furthermore, the method also includes:

[0029] If, after the third pre-adjustment, the upstream trunk line is overloaded, or

[0030] If, after the third pre-adjustment, the previous trunk line is not overloaded, and the next trunk line is overloaded relative to the current trunk line, then no load adjustment will be performed on the current trunk line.

[0031] According to another aspect of the present invention, a ring network load adjustment device is provided, wherein the ring network consists of at least three main lines, and is arranged in the direction of electrical energy flow, starting from any one of the main lines in the ring network, such that any one of the main lines intersects with the two main lines before and after it. Each main line includes three load segments, which are respectively a fixed load, a first variable load, and a second variable load according to the direction of electrical energy flow, including:

[0032] The first pre-adjustment module is used to obtain the load of the current trunk line, the next trunk line and the previous trunk line respectively. If the current trunk line is overloaded relative to the next trunk line, the current trunk line is pre-adjusted.

[0033] The first adjustment module is used to adjust the load of the current trunk line according to the first pre-adjustment method if, after the first pre-adjustment, the next trunk line is not overloaded and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the first adjustment conditions.

[0034] The second pre-adjustment module is used to perform a second pre-adjustment on the current trunk line if, after the first pre-adjustment, the next trunk line is not overloaded and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the second adjustment conditions.

[0035] The second adjustment module is used to adjust the load of the current trunk line according to the second pre-adjustment method if, after the second pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line; otherwise, it adjusts the load of the current trunk line according to the first pre-adjustment method.

[0036] Optionally, the first pre-adjustment module is also used for:

[0037] The second variable load of the current trunk line is switched to be powered by the power supply point corresponding to the next trunk line.

[0038] Optional, the first adjustment condition includes:

[0039] The current trunk line is not overloaded relative to the next trunk line, and the previous trunk line is not overloaded relative to the current trunk line; or

[0040] The current trunk line is overloaded relative to the next trunk line, but not overloaded relative to the previous trunk line.

[0041] Optional, second adjustment conditions include:

[0042] The current trunk line is overloaded relative to both the next trunk line and the previous trunk line.

[0043] Optionally, the second pre-adjustment module is also used for:

[0044] The first and second variable loads of the current trunk line are respectively supplied by the power supply points corresponding to the previous trunk line and the next trunk line.

[0045] Optionally, the device further includes a first processing module for:

[0046] If, after the first pre-adjustment, the next main line is overloaded, or

[0047] If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the third adjustment condition, then no load adjustment will be performed on the current trunk line.

[0048] Optional, third adjustment conditions include:

[0049] The current trunk line is not overloaded relative to the next trunk line, and the previous trunk line is overloaded relative to the current trunk line.

[0050] Optionally, the device further includes a third adjustment module for:

[0051] The load of the current trunk line is compared with that of the previous trunk line. If the current trunk line is overloaded relative to the previous trunk line, a third pre-adjustment is performed on the current trunk line. If, after the third pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line, the load of the current trunk line is adjusted according to the third pre-adjustment method.

[0052] Optionally, the third adjustment module is also used for:

[0053] The first and second variable loads of the current trunk line are both supplied by the power source corresponding to the previous trunk line.

[0054] Optionally, the device further includes a second processing module for:

[0055] If, after the third pre-adjustment, the upstream trunk line is overloaded, or

[0056] If, after the third pre-adjustment, the previous trunk line is not overloaded, and the next trunk line is overloaded relative to the current trunk line, then no load adjustment will be performed on the current trunk line.

[0057] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0058] At least one processor; and

[0059] A memory communicatively connected to the at least one processor; wherein,

[0060] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the ring network load adjustment method according to any embodiment of the present invention.

[0061] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the ring network load adjustment method according to any embodiment of the present invention.

[0062] This invention provides a method for adjusting the load of a ring network. The method involves acquiring the loads of the current trunk line, the next trunk line, and the previous trunk line. If the current trunk line is overloaded relative to the next trunk line, a first pre-adjustment is performed on the current trunk line. If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the first adjustment condition, then the current trunk line is adjusted according to the first pre-adjustment method. If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the second adjustment condition, then a second pre-adjustment is performed on the current trunk line. If, after the second pre-adjustment, the previous trunk line is not overloaded, and the next trunk line is not overloaded relative to the current trunk line, then the current trunk line is adjusted according to the second pre-adjustment method; otherwise, the current trunk line is adjusted according to the first pre-adjustment method. The ring network load adjustment method provided in this embodiment of the invention monitors the load of each trunk line in the ring network in real time. For overloaded trunk lines, it automatically judges the feasibility of various methods to transfer part of the load of the overloaded line to the adjacent line. After determining the specific operation method, it automatically controls the line to perform operation to transfer power supply to adjust the line load. This achieves quick and safe adjustment of the ring network load and reduces the reliance on manual operation by maintenance personnel.

[0063] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0064] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0065] Figure 1 This is a flowchart of a method for adjusting ring network load according to Embodiment 1 of the present invention;

[0066] Figure 2 This is a schematic diagram of a ring network structure provided in Embodiment 1 of the present invention;

[0067] Figure 3 This is a flowchart of the overload handling process for the current trunk line to the next trunk line according to Embodiment 1 of the present invention;

[0068] Figure 4 This is a flowchart of the overload handling process of the current trunk line to the previous trunk line according to Embodiment 1 of the present invention;

[0069] Figure 5This is a flowchart of a load return method according to Embodiment 1 of the present invention;

[0070] Figure 6 This is a schematic diagram of a ring network load adjustment device according to Embodiment 2 of the present invention;

[0071] Figure 7 This is a schematic diagram of the structure of an electronic device that implements the ring network load adjustment method of Embodiment 3 of the present invention. Detailed Implementation

[0072] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0073] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0074] Example 1

[0075] Figure 1 This is a flowchart of a ring network load adjustment method provided in Embodiment 1 of the present invention. This embodiment is applicable to situations where the ring network load is automatically adjusted when line overload occurs. The method can be executed by a ring network load adjustment device, which can be implemented in hardware and / or software and can be configured in electronic equipment. Figure 1 As shown, the method includes:

[0076] S110. Obtain the load of the current trunk line, the next trunk line, and the previous trunk line respectively. If the current trunk line is overloaded relative to the next trunk line, perform the first pre-adjustment on the current trunk line.

[0077] In this embodiment, the ring network consists of at least three trunk lines, each corresponding to a power source. Starting from any trunk line in the ring network, the trunk lines are arranged in the direction of power flow. Each trunk line intersects with the two trunk lines before and after it. Each trunk line includes three load segments, which are fixed load, first variable load and second variable load according to the direction of power flow.

[0078] Figure 2 This is a schematic diagram of a ring network structure provided by an embodiment of the present invention. As shown in the figure, this is a ring network system powered by n power supply points. Each power supply point supplies power to a line trunk. Starting with any trunk in the ring network, the trunks are sequentially arranged with Arabic numerals in the direction of power flow (i.e., arranged in order as 1, 2, 3, ..., n). Any trunk will intersect with the two trunks to its left and right. Taking the current trunk i as the reference, the nearest power supply intersection point of the current trunk i intersects (i.e., coincides) with the far power supply intersection point of the previous trunk (i-1), and the far power supply intersection point of the current trunk i intersects (i.e., coincides) with the nearest power supply intersection point of the next trunk (i+1). Taking trunk line i as an example, the various parts of the trunk line are named as follows: the power source supplying trunk line i is Si. A total of three load monitoring devices are installed on the trunk line to monitor the load from the monitoring point to the end of the line. The monitoring device at the power source outlet is jci1, and its monitoring data is the total load of the entire line. The monitoring device near the power source junction on the trunk line is jci2, and its monitoring data is the load from the power source junction on line i to the end of the line. The monitoring device at the far power source junction on the trunk line is jci3, and its monitoring data is the load from the far power source junction on line i to the end of the line. Based on the data from the three monitoring points, the load of line i is divided into three segments. The first segment, from the power source outlet to the near power source junction, is a fixed load pi0, which is supplied by power source Si. The second segment, from the near power source junction to the far power source junction, is called the first variable load, denoted by pi1. The third segment, from the far power source junction to the end of the line, is called the second variable load, denoted by pi2.

[0079] In this embodiment, the number of power sources in a ring network is n≥3. In general rural power supply, the ring network is composed of three to five power sources. It is set that when the total load of a trunk line i is greater than 1.4 times the total load of any adjacent trunk line, it is considered to be unbalanced and needs to be adjusted. That is, if jci1>140%jc(i+1)1 or jci1>140%jc(i-1)1, then trunk line i is called overloaded.

[0080] Optionally, for each trunk line in the ring network, monitoring devices installed on each trunk line can be used to obtain the load status of the current trunk line, the next trunk line, and the previous trunk line. Then, it can be determined whether the current trunk line is overloaded relative to the next trunk line. Let the current trunk line be i and the next trunk line be (i+1). When the total load of trunk line i is detected to be greater than 1.4 times the total load of trunk line (i+1), that is, jci1>140%jc(i+1)1, it can be determined that the current trunk line is overloaded relative to the next trunk line, where jci1=pi0+pi1+pi2.

[0081] Furthermore, when the current trunk line i is overloaded, there are three ways to adjust the load: 1) the second variable load pi2 of the current trunk line i is transferred to the power supply point S(i+1); 2) the second variable load pi2 of the current trunk line i is transferred to the power supply point S(i+1), and the first variable load pi1 of the current trunk line i is transferred to the power supply point S(i-1); 3) the first variable load pi1 and the second variable load pi2 of the current trunk line i are transferred to the power supply point S(i-1). Preferably, when trunk line i is overloaded, the first adjustment method is considered first, that is, transferring part of the load to the next trunk line (i+1). If this adjustment can solve the overload problem of trunk line i and will not cause the adjacent trunk lines to be overloaded, then the first adjustment method is adopted. If the first adjustment method cannot solve the overload problem of trunk line i or will cause the adjacent trunk lines to be overloaded, then the second adjustment method is considered. And so on. If the third adjustment method still cannot solve the overload problem of trunk line i or will cause the adjacent trunk lines to be overloaded, then the load of trunk line i cannot be adjusted.

[0082] In this embodiment, pre-adjustment refers to the simulation of ring network load adjustment, rather than the execution of actual adjustment actions. That is, it is assumed that the adjustment is carried out in one of the above methods. The first pre-adjustment, the second pre-adjustment, and the third pre-adjustment in the following text are three different hypothetical adjustment methods.

[0083] Preferably, an intermediate variable `zi` can be set, with an initial value of 0. When it is assumed that pi2 is switched from S(i+1) to power, `zi` = 1; when it is assumed that pi2 is switched from S(i+1) to power and pi1 is switched from S(i-1) to power, `zi` = 2; when it is assumed that pi1 and pi2 are switched from S(i-1) to power, `zi` = 3. Alternatively, a power switching confirmation variable `qi` can be set, with an initial value of 0. When the corresponding adjustment action is performed to switch pi2 from S(i+1) to power, `qi` = 1; when the corresponding adjustment action is performed to switch pi2 from S(i+1) to power and pi1 from S(i-1) to power, `qi` = 2; when the corresponding adjustment action is performed to switch pi1 and pi2 from S(i-1) to power, `qi` = 3.

[0084] In this embodiment, the first pre-adjustment of the current trunk line can be performed by transferring the power supply of the second variable load of the current trunk line to the power supply point corresponding to the next trunk line.

[0085] Specifically, the intermediate variables zi = 1, 2, and 3 can represent the first, second, and third pre-adjustment methods, respectively. When the current trunk line i is overloaded relative to the next trunk line (i+1), zi = 1 can be set, assuming that pi2 is included in the power supply range of S(i+1).

[0086] S120. If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the first adjustment conditions, then the current trunk line shall be adjusted according to the first pre-adjustment method.

[0087] In this embodiment, after the first pre-adjustment, the loads of the current trunk line i and the next trunk line (i+1) change, that is, the total load of the next trunk line (i+1) jc(i+1)1=p(i+1)0+p(i+1)1+p(i+1)2+pi2, and the total load of the current trunk line i jci1=pi0+pi1.

[0088] Furthermore, if the next trunk line is overloaded after the first pre-adjustment, or if the next trunk line is not overloaded after the first pre-adjustment, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the third adjustment condition, then no load adjustment will be performed on the current trunk line.

[0089] The third adjustment condition can be: the current trunk line is not overloaded relative to the next trunk line, and the previous trunk line is overloaded relative to the current trunk line.

[0090] Specifically, after the first pre-adjustment, it is first determined whether the trunk line (i+1) after calculating pi2 is overloaded, that is, whether jc(i+1)1>140%jc(i+2)1 or jc(i+1)1>140%jci1, where jc(i+1)1=p(i+1)0+p(i+1)1+p(i+1)2+pi2, jci1=pi0+pi1. If either of the above two equations is true, then adjusting the ring network load according to the first pre-adjustment method will cause the trunk line (i+1) to be overloaded, so this method cannot be used for adjustment, and zi=0; if neither equation is true, then it can be considered that the first pre-adjustment method will not cause the trunk line (i+1) to be overloaded. At this time, according to the first adjustment condition, it is then determined whether the trunk line i is still under heavy load, i.e., overloaded, after the adjustment.

[0091] In this embodiment, the first adjustment condition may be: the current trunk line is not overloaded relative to the next trunk line, and the previous trunk line is not overloaded relative to the current trunk line; or the current trunk line is overloaded relative to the next trunk line, and the current trunk line is not overloaded relative to the previous trunk line.

[0092] Specifically, we can first determine whether the current trunk line i is overloaded relative to the next trunk line (i+1), i.e., whether jci1 > 140% jc(i+1)1. In this case, jc(i+1)1 = p(i+1)0 + p(i+1)1 + p(i+1)2 + pi2, and jci1 = pi0 + pi1. If it is not satisfied, i.e., the trunk line i after the first pre-adjustment is not overloaded relative to the next trunk line (i+1), then we can determine whether reducing the load on trunk line i will cause the previous trunk line (i-1) to meet the overload condition, i.e., jc(i-1)1 > 140% jci1. When the equation is satisfied, the reduced load on trunk line i will cause an overload on the previous trunk line (i-1), so trunk line i cannot be adjusted, and zi = 0 is set. When the equation is not satisfied, the reduced load on trunk line i will not cause an overload on the previous trunk line (i-1), and the value of zi at this time can be assigned to the power transfer confirmation variable qi, i.e., qi = 1, so that the current trunk line i is adjusted according to the first pre-adjustment method, that is, the second variable load pi2 of the current trunk line is transferred to the power supply point S(i+1) corresponding to the next trunk line (i+1).

[0093] If the first pre-adjusted trunk line i still overloads the next line (i+1), then it is determined whether the first pre-adjusted trunk line i overloads the previous line (i-1), i.e., whether jci1>140%jc(i-1)1 is satisfied, where jci1=pi0+pi1. If the first pre-adjusted trunk line i does not overload the previous line (i-1), i.e., the formula does not hold, then the value of zi can be assigned to the power transfer confirmation variable qi, i.e., qi=1, so that the current trunk line is adjusted according to the first pre-adjustment method, that is, the second variable load pi2 of the current trunk line i is transferred to the power supply point S(i+1) corresponding to the next trunk line (i+1).

[0094] S130. If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the second adjustment conditions, then the current trunk line shall be subject to a second pre-adjustment.

[0095] In this embodiment, the second adjustment condition may be: the current trunk line is overloaded relative to both the next trunk line and the previous trunk line. The method for performing the second pre-adjustment on the current trunk line may be: transferring the first and second variable loads of the current trunk line to the power supply points corresponding to the previous and next trunk lines, respectively.

[0096] Specifically, if after the first pre-adjustment, the current trunk line i is overloaded relative to both the next trunk line (i+1) and the previous trunk line (i-1), i.e., jci1 > 140% jc(i+1)1 and jci1 > 140% jc(i-1)1, where jc(i+1)1 = p(i+1)0 + p(i+1)1 + p(i+1)2 + pi2, and jci1 = pi0 + pi1, then we can let zi = 2, assuming that the first variable load pi1 and the second variable load pi2 are included in the power supply ranges of S(i-1) and S(i+1), respectively.

[0097] S140. If, after the second pre-adjustment, the upper trunk line is not overloaded and the lower trunk line is not overloaded relative to the current trunk line, then the current trunk line shall be adjusted according to the second pre-adjustment method; otherwise, the current trunk line shall be adjusted according to the first pre-adjustment method.

[0098] In this embodiment, after the second pre-adjustment, the loads of the current trunk line i, the next trunk line (i+1), and the previous trunk line (i-1) change. That is, the total load of the current trunk line i is jci1 = pi0, the total load of the next trunk line (i+1) is jc(i+1)1 = p(i+1)0 + p(i+1)1 + p(i+1)2 + pi2, and the total load of the previous trunk line (i-1) is jc(i-1)1 = p(i-1)0 + p(i-1)1 + p(i-1)2 + pi1.

[0099] Specifically, after the second pre-adjustment, it is first determined whether the trunk line (i-1) after pi1 is overloaded, that is, whether jc(i-1)1>140%jc(i-2)1 or jc(i-1)1>140%jci1, where jc(i-1)1=p(i-1)0+p(i-1)1+p(i-1)2+pi1, jci1=pi0. If neither of the two equations holds, it can be considered that this adjustment method will not cause the previous trunk line (i-1) to be overloaded, that is, the previous trunk line (i-1) is not overloaded. At this time, it can be determined whether the trunk line (i+1) under this adjustment is overloaded by the trunk line i, that is, whether jc(i+1)1>140%jci1, where jc(i+1)1=p(i+1)0+p(i+1)1+p(i+1)2+pi2, jci1=pi0. If the formula is not true, meaning that the trunk line (i+1) is not overloaded relative to the trunk line i under this adjustment, then the value of zi can be assigned to the power transfer confirmation variable qi, i.e., qi = 2, so that the current trunk line is adjusted according to the second pre-adjustment method, that is, the first variable load pi1 and the second variable load pi2 of the current trunk line i are transferred to the power supply points S(i-1) and S(i+1) respectively. If the formula is true, meaning that this adjustment will cause the trunk line (i+1) to be overloaded relative to the trunk line i, then the second pre-adjustment method cannot be selected, zi = 1 is reset, and the value of zi is assigned to the power transfer confirmation variable qi, i.e., qi = 1, so that the current trunk line is adjusted according to the first pre-adjustment method, that is, the second variable load pi2 of the current trunk line i is transferred to the power supply point S(i+1) corresponding to the next trunk line (i+1).

[0100] If either jc(i-1)1>140%jc(i-2)1 or jc(i-1)1>140%jci1 holds true, then the second pre-adjustment method will cause the trunk line (i-1) to be overloaded. Therefore, let zi=1 and assign the value of zi to the power transfer confirmation variable qi, i.e., qi=1. Let the current trunk line adjust the load according to the first pre-adjustment method, that is, let the second variable load pi2 of the current trunk line i be transferred to the power supply point S(i+1) corresponding to the next trunk line (i+1).

[0101] Figure 3This is a flowchart of the overload handling process for the current trunk line to the next trunk line provided by an embodiment of the present invention. As shown in the figure, it is first determined whether the trunk line i is overloaded by the next trunk line (i+1). When the total load of the trunk line i is detected to be greater than 1.4 times the total load of the trunk line (i+1), that is, jci1>140%jc(i+1)1 (jci1=pi0+pi1+pi2, jc(i+1)1=p(i+1)0+p(i+1)1+p(i+1)2), then let zi=1 and include pi2 in the power supply range of S(i+1). Next, determine whether the trunk line (i+1) is overloaded after pi2 is included, i.e. whether jc(i+1)1>140%jc(i+2)1 or jc(i+1)1>140%jci1, where jc(i+1)1=p(i+1)0+p(i+1)1+p(i+1)2+pi2, and jci1=pi0+pi1. If either of the two equations is true, the adjustment will cause the trunk line (i+1) to be overloaded, so this adjustment cannot be made, and zi = 0 is reset. If neither equation is true, it is considered that the adjustment will not cause the trunk line (i+1) to be overloaded. Therefore, it is then determined whether the trunk line i is still overloaded relative to the trunk line (i+1) after the adjustment, i.e., whether jci1 > 140%jc(i+1)1 (where jc(i+1)1 = p(i+1)0 + p(i+1)1 + p(i+1)2 + pi2, jci1 = pi0 + pi1). If not, it is determined that the trunk line i after the load reduction is Whether the load reduction of line i will cause the previous trunk line (i-1) to meet the overload condition, i.e., whether jc(i-1)1>140%jci1(jci1=pi0+pi1), if so, then the load reduction of line i will cause the previous trunk line (i-1) to be overloaded, so line i cannot be adjusted, and zi=0 is reset; when the formula jc(i-1)1>140%jci1(jci1=pi0+pi1) is not true, then the load reduction of line i will not cause the previous trunk line (i-1) to be overloaded, so at this time, the value of zi is assigned to the power transfer confirmation variable qi, i.e., qi=1.

[0102] If the adjusted trunk line i is still overloaded by the next trunk line (i+1), i.e. jci1>140%jc(i+1)1 (where jc(i+1)1=p(i+1)0+p(i+1)1+p(i+1)2+pi2, jci1=pi0+pi1), then it is determined whether the adjusted trunk line i is overloaded by the previous trunk line (i-1), i.e. whether jci1>140%jc(i-1)1 (jci1=pi0+pi1). If not, then the adjusted trunk line i will not overload the previous trunk line (i-1), and no further adjustment can be made to trunk line i. The value of zi is assigned to the power supply confirmation variable qi, i.e., qi = 1. If yes, that is, the adjusted trunk line i will still overload the previous trunk line (i-1), then let zi = 2. pi2 is included in the power supply range of S(i+1), and pi1 is included in the power supply range of S(i-1). It is then determined whether trunk line (i-1) is overloaded after including pi1, i.e., jc(i-1)1 > 140%jc(i-2)1 or jc(i-1)1 > 140%jci1. At this time, jci1 = pi0, jc(i-1)1 = p(i-1)0 + p(i-1)1 + p(i-1)2 + pi1. If either equation is true, the adjustment will cause the trunk line (i-1) to be overloaded. In this case, let zi = 1 again and assign the value of zi to the power supply confirmation variable qi, i.e., qi = 1. If neither equation is true, the adjustment will not cause the trunk line (i-1) to be overloaded. Then, determine whether the trunk line (i+1) is overloaded by the trunk line i under this adjustment, i.e., whether jc(i+1)1 > 140%jci1, where jc(i+1)1 = p(i+1)0 + p(i+1)1 + ... 1) 2+pi2, jci1=pi0. If the formula holds true, then under this adjustment, the main line (i+1) will be overloaded by the main line i. In this case, the adjustment mode of zi=2 cannot be selected. Instead, let zi=1 again and assign the value of zi to the power transfer confirmation variable qi, i.e., qi=1. If the formula jc(i+1)1>140%jci1 does not hold true, then under this adjustment, the main line (i+1) will not be overloaded by the main line i. In this case, assign the value of zi to the power transfer confirmation variable qi, i.e., qi=2.

[0103] In this embodiment, the initial values ​​of the intermediate variable zi and the power transfer confirmation variable qi are both 0. The value of the intermediate variable zi (1, 2, 3) represents the assumed adjustment method, and the value of the power transfer confirmation variable qi (1, 2, 3) represents the actual adjustment action. After the above judgment steps, if qi is initially 0, it means that the current trunk line i is not overloaded relative to the next trunk line (i+1), or the first or second pre-adjustment method cannot be adopted after judgment. At this time, it is possible to consider transferring the first variable load pi1 and the second variable load pi2 of the current trunk line i to the power supply point S(i-1) of the previous trunk line, which is the third pre-adjustment method.

[0104] Optionally, when the load of the current trunk line is not adjusted, the following can also be done: compare the load of the current trunk line with that of the previous trunk line; if the current trunk line is overloaded relative to the previous trunk line, then perform a third pre-adjustment on the current trunk line; if, after the third pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line, then let the current trunk line adjust its load according to the third pre-adjustment method.

[0105] One possible way to make a third pre-adjustment to the current trunk line is to have the first and second variable loads of the current trunk line switched to power supply from the power source corresponding to the previous trunk line.

[0106] Specifically, after handling the overload situation of trunk line i to the next trunk line (i+1), if no load adjustment action is taken, it is then determined whether trunk line i is overloaded to the previous trunk line (i-1), i.e., whether jci1 > 140% jc(i-1)1. If so, trunk line i is overloaded to the previous trunk line (i-1), and a third pre-adjustment is performed on the current trunk line i, letting zi = 3, i.e., assuming that pi1 and pi2 are included in the power supply range of S(i-1). At this time, jci1 = pi0, jc(i-1)1 = p(i-1)0 + p(i-1)1 + p(i-1)2 + pi1 + pi2. Then it is determined whether trunk line (i-1) will be overloaded due to this adjustment, i.e., whether jc(i-1)1 > 140% jc(i-2)1 or jc(i-1)1 > 140% jci1. If neither of the two equations holds true, then the previous trunk line (i-1) is not overloaded. Further determine whether the next trunk line (i+1) is overloaded relative to the current trunk line i, i.e., whether jc(i+1)1>140%jci1. If not, then the next trunk line (i+1) is not overloaded relative to the current trunk line i. Assign the value of zi to the power supply confirmation variable qi, i.e., qi=3. Let the current trunk line adjust the load according to the third pre-adjustment method, i.e., include pi1 and pi2 in the power supply range of S(i-1).

[0107] Furthermore, if the previous trunk line is overloaded after the third pre-adjustment, or if the previous trunk line is not overloaded after the third pre-adjustment and the next trunk line is overloaded relative to the current trunk line, then no load adjustment will be made to the current trunk line.

[0108] Specifically, if either jc(i-1)1>140%jc(i-2)1 or jc(i-1)1>140%jci1 is true, then trunk line (i-1) will be overloaded due to the adjustment and cannot transfer power to trunk line i, and zi=0 again; if after the third pre-adjustment, the previous trunk line (i-1) is not overloaded, it is determined whether the adjusted trunk line (i+1) is overloaded to trunk line i, that is, whether jc(i+1)1>140%jci1. If so, the adjusted trunk line (i+1) is overloaded to trunk line i, and the system cannot transfer power to trunk line i, and zi=0 again.

[0109] Figure 4 This is a flowchart of an embodiment of the present invention for handling overload of the current trunk line to the previous trunk line. As shown in the figure, it is determined whether trunk line i is overloaded by the previous trunk line (i-1), i.e., whether jci1 > 140% jc(i-1)1. If so, let zi = 3, and assume that pi1 and pi2 are included in the power supply range of S(i-1). Then it is determined whether trunk line (i-1) will be overloaded due to the adjustment, i.e., whether jc(i-1)1 > 140% jc(i-2)1 or jc(i-1)1 > 140% jci1 (jci1 = pi0, jc(i-1)1 = p(i-1)0 + p(i-1)1 + p(i-1)2 + pi1 + pi2). If either of the two equations is true, then trunk line (i-1) will be overloaded due to the adjustment, so zi = 0 is reset, and power transfer processing for trunk line i cannot be performed. If neither equation is true, then trunk line (i-1) will not be overloaded due to the adjustment. In this case, it is determined whether the adjusted trunk line (i+1) will overload trunk line i, i.e., whether jc(i+1)1 > 140%jci1 (jci1 = pi0). If yes, then the adjusted trunk line (i+1) will overload trunk line i, so zi = 0 is reset, and power transfer processing for trunk line i cannot be performed. If no, if the adjusted trunk line (i+1) will not overload trunk line i, then the value of zi is assigned to the power transfer confirmation variable qi, i.e., qi = 3.

[0110] Furthermore, after adjusting the current trunk line load, the current trunk line load decreases while the adjacent trunk line load increases. The real-time load status of each trunk line can be obtained through the load monitoring device on each trunk line. When the load return conditions are met, the load transferred out of the current trunk line is returned to the power supply point of the current trunk line for power supply.

[0111] Figure 5This is a flowchart of a load return method provided by an embodiment of the present invention. As shown in the figure, when qi = 1, the second variable load pi2 of the current trunk line i is powered by the next trunk line (i+1). At this time, it is determined whether jc(i+1)1 > 140%jci1 (jc(i+1)1 = p(i+1)0 + p(i+1)1 + p(i+1)2 + pi2, jci1 = pi0 + pi1). If so, then the load in trunk line i has been reduced to the point that trunk line (i+1) is overloaded. When pi2 no longer needs to be powered by S(i+1), it is switched back to being powered by Si, and qi = zi = 0; when qi = 2, the first variable load pi1 and the second variable load pi2 of the current trunk line i are powered by the power supply point S(i-1) of the previous trunk line and the power supply point S(i+1) of the next trunk line, respectively. At this time, it is determined whether jc(i+1)1 > 140%jci1 and jc(i-1)1 > 140%jci1 (jc(i+1)1 = p(i+1)0 + p(i+1)1 + p( If i+1)2+pi2, jc(i-1)1=p(i-1)0+p(i-1)1+p(i-1)2+pi1, jci1=pi0), then the load in trunk line i has been reduced to the point that trunk lines (i+1) and (i-1) are overloaded. At this time, pi2 no longer needs to be supplied by S(i+1), and pi1 no longer needs to be supplied by S(i-1). They are both switched back to being supplied by Si, and qi=zi=0; when qi=3, the first variable load pi1 of trunk line i is... The second variable load pi2 is powered by the upstream trunk line (i-1). At this time, it is determined whether jc(i-1)1>140%jci1 (jc(i-1)1=p(i-1)0+p(i-1)1+p(i-1)2+pi1+pi2,jci1=pi0). If so, the load in trunk line i has been reduced to the point that trunk line (i-1) is overloaded. At this time, pi1 and pi2 no longer need to be powered by S(i-1), and are switched back to be powered by Si, and qi=zi=0.

[0112] Furthermore, a host computer can be configured to update the power supply distribution of the ring network lines in real time, and the adjusted lines can be manually restored. Preferably, the host computer and slave computer can be developed using microcomputers such as STM32 and DSP.

[0113] This invention provides a method for adjusting the load of a ring network. The method involves acquiring the loads of the current trunk line, the next trunk line, and the previous trunk line. If the current trunk line is overloaded relative to the next trunk line, a first pre-adjustment is performed on the current trunk line. If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the first adjustment condition, then the current trunk line is adjusted according to the first pre-adjustment method. If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the second adjustment condition, then a second pre-adjustment is performed on the current trunk line. If, after the second pre-adjustment, the previous trunk line is not overloaded, and the next trunk line is not overloaded relative to the current trunk line, then the current trunk line is adjusted according to the second pre-adjustment method; otherwise, the current trunk line is adjusted according to the first pre-adjustment method. The ring network load adjustment method provided in this embodiment of the invention monitors the load of each trunk line in the ring network in real time. For overloaded trunk lines, it automatically judges the feasibility of various methods to transfer part of the load of the overloaded line to the adjacent line. After determining the specific operation method, it automatically controls the line to perform operation to transfer power supply to adjust the line load. This achieves quick and safe adjustment of the ring network load and reduces the reliance on manual operation by maintenance personnel.

[0114] Example 2

[0115] Figure 6 This is a schematic diagram of a ring network load adjustment device provided in Embodiment 2 of the present invention. Figure 6 As shown, the device includes: a first pre-adjustment module 310, a first adjustment module 320, a second pre-adjustment module 330, and a second adjustment module 340.

[0116] The first pre-adjustment module 310 is used to obtain the load of the current trunk line, the next trunk line and the previous trunk line respectively. If the current trunk line is overloaded relative to the next trunk line, the first pre-adjustment is performed on the current trunk line.

[0117] Optionally, the first pre-adjustment module 310 is also used for:

[0118] The second variable load on the current trunk line is then transferred to the power supply point corresponding to the next trunk line.

[0119] The first adjustment module 320 is used to adjust the load of the current trunk line according to the first pre-adjustment method if, after the first pre-adjustment, the next trunk line is not overloaded and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the first adjustment conditions.

[0120] Optional, the first adjustment condition includes:

[0121] The current trunk line is not overloaded relative to the next trunk line, and the previous trunk line is not overloaded relative to the current trunk line; or

[0122] The current trunk line is overloaded relative to the next trunk line, but not overloaded relative to the previous trunk line.

[0123] The second pre-adjustment module 330 is used to perform a second pre-adjustment on the current trunk line if, after the first pre-adjustment, the next trunk line is not overloaded and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the second adjustment conditions.

[0124] Optional, second adjustment conditions include:

[0125] The current trunk line is overloaded relative to both the next and previous trunk lines.

[0126] Optionally, the second pre-adjustment module 330 is also used for:

[0127] The first and second variable loads of the current trunk line are supplied by the power supply points corresponding to the previous and next trunk lines, respectively.

[0128] The second adjustment module 340 is used to adjust the load of the current trunk line according to the second pre-adjustment method if the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line after the second pre-adjustment; otherwise, it adjusts the load of the current trunk line according to the first pre-adjustment method.

[0129] Optionally, the device further includes a first processing module 350, for:

[0130] If, after the first pre-adjustment, the next main line is overloaded, or

[0131] If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the third adjustment conditions, then no load adjustment will be performed on the current trunk line.

[0132] Optional, third adjustment conditions include:

[0133] The current trunk line is not overloaded relative to the next trunk line, while the previous trunk line is overloaded relative to the current trunk line.

[0134] Optionally, the device also includes a third adjustment module 360 ​​for:

[0135] The load of the current trunk line is compared with that of the previous trunk line. If the current trunk line is overloaded relative to the previous trunk line, a third pre-adjustment is performed on the current trunk line. If, after the third pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line, the load of the current trunk line is adjusted according to the third pre-adjustment method.

[0136] Optionally, the third adjustment module 360 ​​is also used for:

[0137] The first and second variable loads of the current trunk line are both supplied by the power source corresponding to the previous trunk line.

[0138] Optionally, the device also includes a second processing module 370 for:

[0139] If, after the third pre-adjustment, the upstream trunk line is overloaded, or

[0140] If, after the third pre-adjustment, the previous trunk line is not overloaded and the next trunk line is overloaded relative to the current trunk line, then no load adjustment will be made to the current trunk line.

[0141] The ring network load adjustment device provided in this embodiment of the invention can execute the ring network load adjustment method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0142] Example 3

[0143] Figure 7 A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0144] like Figure 7 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0145] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0146] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as methods for adjusting ring network load.

[0147] In some embodiments, the ring network load adjustment method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the ring network load adjustment described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the ring network load adjustment method by any other suitable means (e.g., by means of firmware).

[0148] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0149] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0150] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0151] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0152] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0153] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0154] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and no limitation is imposed herein.

[0155] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for adjusting the load of a ring network, wherein the ring network consists of at least three main lines, each corresponding to a power source point, and starting from any one main line in the ring network, the main lines are arranged in the direction of electrical energy flow, such that any one main line intersects with the two main lines before and after it. Each main line includes three load segments, which, according to the direction of electrical energy flow, are a fixed load, a first variable load, and a second variable load, characterized in that... include: The loads of the current trunk line, the next trunk line, and the previous trunk line are obtained respectively. If the current trunk line is overloaded relative to the next trunk line, the current trunk line is pre-adjusted. If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the first adjustment conditions, then the current trunk line is instructed to adjust its load according to the first pre-adjustment method. If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the second adjustment conditions, then the current trunk line will undergo a second pre-adjustment. If, after the second pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line, then the current trunk line is adjusted according to the second pre-adjustment method; otherwise, the current trunk line is adjusted according to the first pre-adjustment method.

2. The method according to claim 1, characterized in that, The first pre-adjustment of the current trunk line includes: The second variable load of the current trunk line is switched to be powered by the power supply point corresponding to the next trunk line.

3. The method according to claim 2, characterized in that, The first adjustment condition includes: The current trunk line is not overloaded relative to the next trunk line, and the previous trunk line is not overloaded relative to the current trunk line; or The current trunk line is overloaded relative to the next trunk line, but not overloaded relative to the previous trunk line.

4. The method according to claim 3, characterized in that, The second adjustment condition includes: The current trunk line is overloaded relative to both the next trunk line and the previous trunk line.

5. The method according to claim 4, characterized in that, The second pre-adjustment of the current trunk line includes: The first and second variable loads of the current trunk line are respectively supplied by the power supply points corresponding to the previous trunk line and the next trunk line.

6. The method according to claim 1, characterized in that, The method further includes: If, after the first pre-adjustment, the next main line is overloaded, or If, after the first pre-adjustment, the next trunk line is not overloaded, and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the third adjustment condition, then no load adjustment will be performed on the current trunk line.

7. The method according to claim 6, characterized in that, The third adjustment condition includes: The current trunk line is not overloaded relative to the next trunk line, and the previous trunk line is overloaded relative to the current trunk line.

8. The method according to claim 7, characterized in that, When no load adjustment is performed on the current trunk line, the method further includes: The load of the current trunk line is compared with that of the previous trunk line. If the current trunk line is overloaded relative to the previous trunk line, a third pre-adjustment is performed on the current trunk line. If, after the third pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line, the load of the current trunk line is adjusted according to the third pre-adjustment method.

9. The method according to claim 8, characterized in that, The third pre-adjustment of the current trunk line includes: The first and second variable loads of the current trunk line are both supplied by the power source corresponding to the previous trunk line.

10. The method according to claim 8, characterized in that, The method further includes: If, after the third pre-adjustment, the upstream trunk line is overloaded, or If, after the third pre-adjustment, the previous trunk line is not overloaded, and the next trunk line is overloaded relative to the current trunk line, then no load adjustment will be performed on the current trunk line.

11. A device for adjusting the load of a ring network, wherein the ring network consists of at least three main lines, and the main lines are arranged in the direction of electrical energy flow, starting from any one of the main lines, such that each main line intersects with the two main lines preceding and following it. Each main line includes three load segments, which are, according to the direction of electrical energy flow, a fixed load, a first variable load, and a second variable load, characterized in that... include: The first pre-adjustment module is used to obtain the load of the current trunk line, the next trunk line and the previous trunk line respectively. If the current trunk line is overloaded relative to the next trunk line, the current trunk line is pre-adjusted. The first adjustment module is used to adjust the load of the current trunk line according to the first pre-adjustment method if, after the first pre-adjustment, the next trunk line is not overloaded and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the first adjustment conditions. The second pre-adjustment module is used to perform a second pre-adjustment on the current trunk line if, after the first pre-adjustment, the next trunk line is not overloaded and the loads of the current trunk line, the next trunk line, and the previous trunk line meet the second adjustment conditions. The second adjustment module is used to adjust the load of the current trunk line according to the second pre-adjustment method if, after the second pre-adjustment, the previous trunk line is not overloaded and the next trunk line is not overloaded relative to the current trunk line; otherwise, it adjusts the load of the current trunk line according to the first pre-adjustment method.

12. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the ring network load adjustment method according to any one of claims 1-10.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the method for adjusting the ring network load according to any one of claims 1-10.

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