CN112613179B - Method for evaluating influence of live overhaul of power transmission and transformation on power grid - Google Patents
Method for evaluating influence of live overhaul of power transmission and transformation on power gridDownload PDFInfo
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明属于输变电检修技术领域，涉及输变电带电检修对电网的影响评估，尤其是一种输变电带电检修对电网的影响评估方法。The invention belongs to the technical field of power transmission and transformation maintenance, and relates to the impact assessment of power transmission and transformation live maintenance on the power grid, in particular to a method for evaluating the impact of power transmission and transformation live maintenance on the power grid.
背景技术Background technique
合理安排电网设备检修工作，提高检修质量，可以缩短检修时间，减少电网的不正常方式，降低因为异常方式引发的网损等，对于提高电网的可靠性和经济运行水平具有十分重要的意义。对输变电检修相关工作的考核评价有计划和非计划之分，和设备检修次数考核、电网可靠性的统计等，具有一定的科学合理性，满足了检修工作技术评估的部分需求，但还存在以下的不足：Arranging the maintenance work of power grid equipment reasonably and improving the quality of maintenance can shorten the maintenance time, reduce the abnormal mode of the power grid, and reduce the network loss caused by the abnormal mode, which is of great significance for improving the reliability and economic operation level of the power grid. There are planned and unplanned points for the assessment and evaluation of power transmission and transformation related work, as well as the assessment of the number of equipment maintenance and the statistics of power grid reliability, etc., which have certain scientific rationality and meet some of the requirements for technical evaluation of maintenance work. There are following deficiencies:
(1)检修工作可行性的评判依据主要是历史检修的档案，但因为同一停电范围中往往存在很多个设备，可能会造成其它设备的陪停，不利于促进综合检修。(1) The basis for judging the feasibility of maintenance work is mainly the archives of historical maintenance, but because there are often many devices in the same power outage range, it may cause other equipment to accompany the shutdown, which is not conducive to promoting comprehensive maintenance.
(2)检修工作时间不规范。停电计划时间缺乏统一标准，对于各种设备的检修内容和类别没有明确的允许工作时间，导致不同单位申请的工作时间长短不一，随意性较强，工期不易控制。(2) The maintenance working hours are irregular. There is no unified standard for power outage planning time, and there is no clear allowable working time for the maintenance content and categories of various equipment, resulting in different working hours applied by different units, which are highly arbitrary and difficult to control the construction period.
(3)缺乏设备检修对电网方式和可靠性影响程度的量化评估指标。不同设备在电网中通过的潮流和在电网中的地位是不同的，目前，检修的评估没能考虑到此种设备在电网中的重要性和检修对电网方式造成的影响。(3) There is a lack of quantitative evaluation indicators for the impact of equipment maintenance on the grid mode and reliability. The power flow and status of different equipment in the grid are different. At present, the assessment of maintenance fails to take into account the importance of such equipment in the grid and the impact of maintenance on the grid.
发明内容Contents of the invention
本发明的目的在于克服现有技术的不足，提出一种输变电带电检修对电网影响的评估方法，实现了输变电带电检修对电网影响的科学、合理、准确的评估。The purpose of the present invention is to overcome the deficiencies of the prior art, propose a method for evaluating the impact of power transmission and transformation live maintenance on the power grid, and realize scientific, reasonable and accurate evaluation of the impact of power transmission and transformation live maintenance on the power grid.
本发明解决其现实问题是采取以下技术方案实现的：The present invention solves its practical problems and is realized by taking the following technical solutions:
一种输变电带电检修对电网的影响评估方法，包括以下步骤：A method for evaluating the impact of power transmission and transformation live maintenance on the power grid, comprising the following steps:
步骤1、建立输变电设备带电检修对电网的影响模型，输出影响系数结果；Step 1. Establish the impact model of power transmission and transformation equipment live maintenance on the power grid, and output the result of the impact coefficient;
步骤2、根据步骤1获得的影响系数结果，对输变电设备带电检修对电网影响进行评估。Step 2. According to the result of the influence coefficient obtained in step 1, evaluate the impact of live maintenance of power transmission and transformation equipment on the power grid.
而且，所述输变电设备带电检修对电网的影响模型包括输变电设备带电检修对设备可靠性影响模型、输变电设备带电检修对终端站可靠性影响模型和输变电设备带电检修对电网潮流的影响模型。Moreover, the impact model of power transmission and transformation equipment live maintenance on the power grid includes a model of power transmission and transformation equipment live maintenance on equipment reliability, a power transmission and transformation equipment live maintenance impact on terminal station reliability model, and power transmission and transformation equipment live maintenance. Power flow impact model.
而且，所述输变电设备带电检修对设备可靠性影响模型包括：Moreover, the impact model of live maintenance of power transmission and transformation equipment on equipment reliability includes:
(1)计划带电工作：日常生产中列入计划的带电检修、消缺工作；(1) Plan live work: live maintenance and defect elimination work that are included in the plan in daily production;
(2)非计划带电工作：未列入计划的带电检修、消缺工作；(2) Unplanned live work: unplanned live maintenance and defect elimination work;
(3)检修工作延期：对带电检修工作超过预定计划时间的部分。(3) Delay of maintenance work: the part of live maintenance work that exceeds the scheduled time.
而且，所述输变电设备带电检修对终端站可靠性影响模型的建立方法为：Moreover, the establishment method of the impact model of the live maintenance of the power transmission and transformation equipment on the reliability of the terminal station is as follows:
对于终端变电站，输变电检修将会对其可靠性产生影响，影响系数计算如下：For terminal substations, power transmission and transformation maintenance will have an impact on its reliability, and the impact coefficient is calculated as follows:
影响系数＝(1-a/m)*K*t，m为该变电站电源数，a为输变电检修时没有带电工作的电源数，K为最大影响系数(即单电源情况下的影响系数)，t为对工作时间的折算。Influence coefficient = (1-a/m)*K*t, m is the number of power sources in the substation, a is the number of power sources without live work during power transmission and transformation maintenance, and K is the maximum influence coefficient (that is, the influence coefficient in the case of a single power supply ), and t is the conversion of working hours.
而且，所述输变电设备带电检修对电网潮流的影响模型的建立步骤包括：Moreover, the establishment of the model of the impact of live maintenance of power transmission and transformation equipment on power grid flow includes:
(1)考核潮流计算方法：以检修工作进行时流过该设备潮流作为考核潮流，记为P实际；以潮流标幺值作为考核潮流，即Pu＝P实际/P基准，P基准根据不同电压等级取不同的值；(1) Calculation method of assessment power flow: take the current flowing through the equipment during the maintenance work as the assessment current, andrecordit asPactual; The voltage level takes different values;
(2)对于多个设备流过相同的潮流的情况，不重复计算；(2) For the situation that multiple devices flow through the same power flow, do not count repeatedly;
(3)关于潮流值的规定：流出元件的潮流为正，潮流值为流过元件正向潮流的总加；(3) Regulations on the current value: the current flowing out of the component is positive, and the current value is the sum of the positive current flowing through the component;
(4)多张检修申请票涉及相同的用户、电量、潮流的情况：(4) When multiple maintenance application tickets involve the same user, electricity, and power flow:
①如果所有检修申请票是同一单位提出的，则用户、电量、潮流的影响只记入一张申请票，不重复计算；① If all maintenance application tickets are submitted by the same unit, the impact of users, electricity, and power flow will only be recorded in one application ticket, and will not be counted repeatedly;
②如果检修申请票涉及多个单位，则用户、电量、潮流的影响由这些单位平均分摊，每个单位所提检修申请票对用户、电量、潮流的影响也不重复计算。②If multiple units are involved in the maintenance application ticket, the impact on users, electricity, and power flow will be equally shared by these units, and the impact of each unit’s maintenance application ticket on users, electricity, and power flow will not be counted repeatedly.
(5)对于某个单位提的一张带电检修申请票，按照上面的方法得到相应的系数，按照下面的公式计算检修工作对电网的影响系数：(5) For a live maintenance application ticket submitted by a certain unit, the corresponding coefficient is obtained according to the above method, and the influence coefficient of the maintenance work on the power grid is calculated according to the following formula:
A＝(A计+A非+A延计+A延非+A延计‘+A延非‘)*(1+(1-a/m)*K*t+Ap)A＝(Ameter +Anon +Aextension +Aextension +Aextension '+Aextension ')*(1+(1-a/m)*K*t+Ap )
其中，in,
Ap为带电检修工作设备流过潮流的折算系数，应与潮流标幺值Pu正相关；Ap is the conversion coefficient of the power flow flowing through the live maintenance equipment, which should be positively correlated with the per unit value Pu of the power flow;
A计为每张带电计划检修申请票的影响系数；Ais calculated as the influence coefficient of each application ticket for planned maintenance of live electricity;
A非为每张非计划带电检修申请票的影响系数；A is the influence coefficient of eachunplanned live maintenance application ticket;
A延计，A延非为第一次检修工作延期的影响系数；Adelay calculation , Adelay is not the influence coefficient for the delay of the first maintenance work;
A延计‘，A延非‘为第一次以后申请延期的影响系数。Aextension plan ' and Aextension non ' are the impact coefficients of applying for extension after the first time.
而且，所述步骤2的具体步骤包括：And, the concrete steps of described step 2 include:
(1)任何一张检修申请票都会得到一个对电网的影响系数；(1) Any maintenance application ticket will get an impact coefficient on the power grid;
(2)对一段时间内各单位所提检修申请票的影响系数分别相加得到A总；(2) Add up the influence coefficients of the maintenance application tickets submitted by each unit within a period of time to obtainthe total A;
(3)根据不同单位维护设备的情况确定一个最大允许系数A允许；(3) Determine a maximum allowable coefficient Ato allow according to the conditions of equipment maintained by different units;
(4)通过A总和A允许的比较来对每个单位的设备检修和维护工作进行评价。(4) Evaluate the equipment overhaul and maintenance work of each unit through the comparison of Atotal and Aallowable .
本发明的优点和有益效果：Advantages and beneficial effects of the present invention:
本发明提出了一种输变电带电检修对电网影响的评估方法，该方法建立了输变电设备带电设备对电网影响的精确模型，实现了影响系数的合理计算，并通过影响系数与最大允许系数的比较，实现了输变电带电检修对电网影响的科学、合理、准确的评估。本发明促进了电网综合检修，显著提高了带电检修质量，能够显著减少电网因检修引起的异常方式时间，从而提高电网的安全性，促进电网综合检修，显著提高了检修质量，减少电网因检修引起的异常方式时间，提高电网运行检修工作的精益生产管理水平，进而产生了突出的经济效益和社会效益。The invention proposes a method for evaluating the impact of power transmission and transformation live maintenance on the power grid. The method establishes an accurate model of the impact of power transmission and transformation equipment live equipment on the power grid, realizes the reasonable calculation of the influence coefficient, and through the influence coefficient and the maximum allowable The comparison of the coefficients realizes the scientific, reasonable and accurate evaluation of the impact of the power transmission and transformation live maintenance on the power grid. The invention promotes the comprehensive maintenance of the power grid, significantly improves the quality of live maintenance, and can significantly reduce the abnormal mode time caused by the maintenance of the power grid, thereby improving the safety of the power grid, promoting the comprehensive maintenance of the power grid, significantly improving the quality of maintenance, and reducing the time caused by the maintenance of the power grid. It improves the lean production management level of power grid operation and maintenance work, and thus produces outstanding economic and social benefits.
附图说明Description of drawings
图1为本发明的一种输变电带电检修对电网的影响评估方法的技术框架图。Fig. 1 is a technical framework diagram of a method for evaluating the impact of power transmission and transformation live maintenance on the power grid according to the present invention.
具体实施方式Detailed ways
以下结合附图对本发明实施例作进一步详述：Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:
一种输变电带电检修对电网的影响评估方法，如图1所示，包括以下步骤：A method for evaluating the impact of power transmission and transformation live maintenance on the power grid, as shown in Figure 1, includes the following steps:
步骤1、建立输变电设备带电检修对电网的影响模型，输出影响系数结果；Step 1. Establish the impact model of power transmission and transformation equipment live maintenance on the power grid, and output the result of the impact coefficient;
在本实施例中，所述输变电设备带电检修对电网的影响模型包括输变电设备带电检修对设备可靠性影响模型、输变电设备带电检修对终端站可靠性影响模型和输变电设备带电检修对电网潮流的影响模型。In this embodiment, the model of the influence of live maintenance of power transmission and transformation equipment on the power grid includes a model of influence of live maintenance of power transmission and transformation equipment on reliability of equipment, a model of influence of live maintenance of power transmission and transformation equipment on reliability of terminal stations, and a model of power transmission and transformation equipment live maintenance. Influence model of equipment live maintenance on power flow.
在本实施例中，所述输变电设备带电检修对设备可靠性影响模型包括：In this embodiment, the model of the impact of live maintenance of power transmission and transformation equipment on equipment reliability includes:
(1)计划带电工作：日常生产中列入计划(指年度、月度计划)的带电检修、消缺工作。(1) Planned live work: Live overhaul and defect elimination work included in the plan (referring to annual and monthly plans) in daily production.
带电计划检修申请票的工作时间要建立相应的数据库，根据检修申请票的工作内容确定合理的工作时间，提票单位要严格按照规定来确定检修工作时间。The corresponding database should be established for the working hours of the live-line planned maintenance application ticket, and the reasonable working hours should be determined according to the work content of the maintenance application ticket.
每张带电计划检修申请票的影响系数记为A计，带电计划检修申请票的批准时间按照规定执行，A计不再对检修申请票的时间和检修内容(检修元件)进行考核，鼓励提票单位进行综合检修以减少提票次数。不同元件的检修对电网不同程度的影响可以在“用户可靠性的影响”、“电网潮流的影响”、“电量的影响”中体现。The influence coefficient of each application ticket for scheduled maintenance with live electricity is recorded asmeter A, and the approval time for the application ticket for planned maintenance with live electricity is implemented in accordance with the regulations.Meter A no longer assesses the time and content of the maintenance application ticket (maintenance components), and encourages the ticket to be withdrawn The unit conducts comprehensive maintenance to reduce the number of ticket withdrawals. The different degrees of impact of the maintenance of different components on the power grid can be reflected in "the impact of user reliability", "the impact of power grid flow", and "the impact of electricity".
不同电压等级的设备的检修对电网的影响程度不同，检修申请票的电压等级按照停电范围中电压等级最高的元件计算，A计根据不同电压等级取不同的值。The maintenance of equipment with different voltage levels has different impacts on the power grid. The voltage level of the maintenance application ticket is calculated according to the component with the highest voltage level in the outage range, and the Ameter takes different values according to different voltage levels.
(2)非计划带电工作：未列入计划(指年度、月度计划)的带电检修、消缺工作。(2) Unplanned live work: Live overhaul and defect elimination work not included in the plan (referring to annual and monthly plans).
每张非计划带电检修申请票的影响系数记为A非，A非的大小应该是对停电时间的一个折算，与工作时间正相关。The influence coefficient of each unplanned live maintenance application ticket is recorded as Anon , and the size of Anon should be a conversion of power outage time, which is positively related to working hours.
(3)检修工作延期：对带电检修工作超过预定计划时间的部分。(3) Delay of maintenance work: the part of live maintenance work that exceeds the scheduled time.
第一次申请延期的时间不能超过原申请工作时间的50％，如不能完成工作的继续申请延期。The time for the first application for extension cannot exceed 50% of the originally applied working time. If the work cannot be completed, continue to apply for extension.
第一次检修工作延期的影响系数记为A延计，A延非，第一次以后申请延期的影响系数记为A延计‘，A延非‘(下标中的“计”、“非”表示不同检修工作的延期)，检修工作延期影响系数的大小应该是对工作时间的一个折算，与时间正相关。The impact coefficient of the delay of the first overhaul work is recorded as AYanji , AYanfei , and the influence coefficient of application for extension after the first time is recorded as AYanji ', AYanfei '("Jian","Non-"Indicates the delay of different maintenance work), the size of the impact coefficient of maintenance work delay should be a conversion of the working time, and it is positively related to the time.
非计划带电工作的影响系数只考虑时间而不考虑检修内容(检修元件)。不同元件的检修对电网不同程度的影响可以在“用户可靠性的影响”、“电网潮流的影响”中体现。The influence coefficient of unplanned live work only considers the time without considering the maintenance content (maintenance components). The different degrees of impact of the maintenance of different components on the power grid can be reflected in "the impact of user reliability" and "the impact of grid power flow".
A延计、A延非、A延计‘、A延非‘同样根据不同电压等级取不同的值。AYanji , AYanfei , AYanji ', AYanfei ' also take different values according to different voltage levels.
对于一张检修申请票提出后即可确定A计、A非的数值A延计、A延非、A延计‘、A延非‘要到检修申请票结束后确定，不涉及的影响系数记为0。For a maintenance application ticket, the valuesofAmeter andAnon can bedetermined after the maintenance application ticket is completed, and the impact coefficients not involved are recorded. is 0.
在本实施例中，所述输变电设备带电检修对终端站可靠性影响模型的建立方法为：In this embodiment, the establishment method of the impact model of the live maintenance of the power transmission and transformation equipment on the reliability of the terminal station is as follows:
对于终端变电站(包括用户变电站)，输变电检修将会对其可靠性产生影响，影响系数计算如下：For terminal substations (including user substations), power transmission and transformation maintenance will have an impact on its reliability, and the influence coefficient is calculated as follows:
影响系数＝(1-a/m)*K*t，m为该变电站电源数，a为输变电检修时没有带电工作的电源数，K为影响系数(与变电站的性质有关，也可是一个固定数值)，t为对工作时间的折算。Influence coefficient = (1-a/m)*K*t, m is the number of power sources of the substation, a is the number of power sources without live work during power transmission and transformation maintenance, and K is the influence coefficient (related to the nature of the substation, it can also be a fixed value), and t is the conversion of working hours.
在本实施例中，因输变电检修对用户影响的情况计算如下：In this embodiment, the calculation of the impact on users due to power transmission and transformation maintenance is as follows:
(1)甲类用户影响系数＝(1-a甲/m)*K甲*t，m为该用户电源数，a甲为输变电检修时没有带电工作的电源数，K甲为甲类用户的影响系数，t为对停电时间的折算。(1) Influence coefficient of Class A users = (1-aA/m)*KA*t, m is the number of power supplies for this user, aA is the number of power supplies without live work during power transmission and transformation maintenance, and KA is Class A User's influence coefficient, t is the conversion of power outage time.
(2)乙类用户影响系数＝(1-a乙/n)*K乙*t，n为该用户电源数，a乙为输变电检修时剩余的电源数，t为对停电时间的折算。(2) Influence coefficient of Class B users = (1-aB/n)*KB*t, n is the number of power sources of the user, aB is the number of remaining power sources during power transmission and transformation maintenance, and t is the conversion of power outage time .
(3)普通用户影响系数＝(1-a普通/c)*A普通*t，c为该用户电源数，a普通为输变电检修时剩余的电源数，t为对停电时间的折算。(3) Ordinary user influence coefficient = (1-a ordinary/c)*A ordinary*t, c is the power supply number of the user, a ordinary is the remaining power supply number during power transmission and transformation maintenance, and t is the conversion of power outage time.
在本实施例中，输变电设备带电检修对电网潮流的影响模型的建立步骤包括：In this embodiment, the establishment steps of the model of the impact of live maintenance of power transmission and transformation equipment on the power flow of the power grid include:
(1)考核潮流计算方法：以检修工作进行时流过该设备潮流作为考核潮流，记为P实际；以潮流标幺值作为考核潮流，即Pu＝P实际/P基准，P基准根据不同电压等级取不同的值；(1) Calculation method of assessment power flow: take the current flowing through the equipment during the maintenance work as the assessment current, andrecordit asPactual; The voltage level takes different values;
(2)对于多个设备流过相同的潮流的情况，不重复计算；(2) For the situation that multiple devices flow through the same power flow, do not count repeatedly;
(3)关于潮流值的规定：流出元件的潮流为正，潮流值为流过元件正向潮流的总加；(3) Regulations on the current value: the current flowing out of the component is positive, and the current value is the sum of the positive current flowing through the component;
(4)多张检修申请票涉及相同的用户、电量、潮流的情况：(4) When multiple maintenance application tickets involve the same user, electricity, and power flow:
①如果所有检修申请票是同一单位提出的，则用户、电量、潮流的影响只记入一张申请票，不重复计算；① If all maintenance application tickets are submitted by the same unit, the impact of users, electricity, and power flow will only be recorded in one application ticket, and will not be counted repeatedly;
②如果检修申请票涉及多个单位，则用户、电量、潮流的影响由这些单位平均分摊，每个单位所提检修申请票对用户、电量、潮流的影响也不重复计算。②If multiple units are involved in the maintenance application ticket, the impact on users, electricity, and power flow will be equally shared by these units, and the impact of each unit’s maintenance application ticket on users, electricity, and power flow will not be counted repeatedly.
(5)对于某个单位提的一张带电检修申请票，按照上面的方法得到相应的系数，按照下面的公式计算检修工作对电网的影响系数：(5) For a live maintenance application ticket submitted by a certain unit, the corresponding coefficient is obtained according to the above method, and the influence coefficient of the maintenance work on the power grid is calculated according to the following formula:
A＝(A计+A非+A延计+A延非+A延计‘+A延非‘)*(1+(1-a/m)*K*t+Ap)A＝(Ameter +Anon +Aextension +Aextension +Aextension '+Aextension ')*(1+(1-a/m)*K*t+Ap )
其中，Ap为带电检修工作设备流过潮流的折算系数，应与潮流标幺值Pu正相关；Among them, Ap is the conversion coefficient of the power flow flowing through the live maintenance equipment, which should be positively correlated with the per unit value of the power flow Pu ;
申请票的影响系数A和停电检修申请票的影响系数K计算方法相似，但是系数取值相对较小。The influence coefficient A of the application ticket is calculated in a similar way to the influence coefficient K of the application ticket for power outage maintenance, but the value of the coefficient is relatively small.
步骤2、根据步骤1获得的影响系数结果，对输变电设备带电检修对电网影响进行评估；Step 2. According to the result of the influence coefficient obtained in step 1, evaluate the impact of live maintenance of power transmission and transformation equipment on the power grid;
所述步骤2的具体步骤包括：The concrete steps of described step 2 include:
(1)任何一张检修申请票都会得到一个对电网的影响系数；(1) Any maintenance application ticket will get an impact coefficient on the power grid;
(2)对一段时间(半年或一年等)内各单位所提检修申请票的影响系数分别相加得到A总；(2) Add up the influence coefficients of the maintenance application tickets submitted by each unit within a period of time (half a year or a year, etc.) to obtainthe total A;
(3)根据不同单位维护设备的情况确定一个最大允许系数A允许；(3) Determine a maximum allowable coefficient Ato allow according to the conditions of equipment maintained by different units;
(4)通过A总和A允许的比较来对每个单位的设备检修和维护工作进行评价。(4) Evaluate the equipment overhaul and maintenance work of each unit through the comparison of Atotal and Aallowable .
本发明的创新之处在于：The innovation of the present invention is:
(1)输变电设备带电检修对电网的影响建模分为3个子项，分别是设备可靠性影响建模、终端站可靠性的影响建模、电网潮流的影响建模。(1) The modeling of the impact of power transmission and transformation equipment live maintenance on the power grid is divided into three sub-items, namely, equipment reliability impact modeling, terminal station reliability impact modeling, and grid power flow impact modeling.
(2)设备可靠性影响建模主要根据检修的性质确定检修工作影响系数，检修类型包括计划带电工作、非计划带电工作、检修工作延期三个情况。(2) The equipment reliability impact modeling mainly determines the maintenance work influence coefficient according to the nature of the maintenance. The maintenance types include planned live work, unplanned live work, and maintenance work delay.
(3)终端站可靠性影响建模主要根据变电站电源数、输变电检修时没有带电工作的电源数、固定影响系数(与变电站的性质有关，也可是一个固定数值)、工作时间折算系数确定影响系数。(3) The reliability impact modeling of the terminal station is mainly determined based on the number of substation power sources, the number of power sources that are not live during power transmission and transformation maintenance, the fixed influence coefficient (related to the nature of the substation, and can also be a fixed value), and the working time conversion coefficient. Influence coefficient.
(4)电网潮流影响建模是根据带电检修工作设备流过潮流计算检修工作对电网的影响系数。(4) Power flow impact modeling is to calculate the impact coefficient of maintenance work on the power grid based on the flow of live maintenance equipment.
(5)根据单个检修票对电网影响系数、各单位局部时段所提检修票影响系数和确定一个综合系数，把综合系数与最大允许系数比较来评估设备带电检修工作。(5) Determine a comprehensive coefficient based on the influence coefficient of a single maintenance ticket on the power grid, the influence coefficient of maintenance tickets raised by each unit in a local period, and compare the comprehensive coefficient with the maximum allowable coefficient to evaluate the equipment live maintenance work.
需要强调的是，本发明所述实施例是说明性的，而不是限定性的，因此本发明包括并不限于具体实施方式中所述实施例，凡是由本领域技术人员根据本发明的技术方案得出的其他实施方式，同样属于本发明保护的范围。It should be emphasized that the embodiments of the present invention are illustrative rather than restrictive, so the present invention includes and is not limited to the embodiments described in the specific implementation, and those who are obtained by those skilled in the art according to the technical solutions of the present invention Other implementation modes mentioned above also belong to the protection scope of the present invention.
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