摘要：【中文】本发明涉及一种电子设备插箱，上导轨板、下导轨板平放时投影俯视图为矩形，包括中间一段凸起的平板和一段位于边缘的折弯立板，在凸起平板上设置两条以上与立板垂直的导轨槽；在折弯的立板上设置有用于安装电路母板的铆装螺母，在与立板紧邻的平面和远离的平面上设置有用于零部件安装的过孔；侧板、横梁、固定耳上分别设置有与上导轨板、下导轨板的过孔相适应的连接孔，横梁的长度方向上及两端端头设置有螺母孔，盖板固定块相邻的相互垂直的两个平面上均设置有螺母孔。本发明还涉及一种电子设备插箱的组装方法。本发明的电子设备插箱零件数量少、种类少，制造难度低，装配简单的明显优点。 【EN】The invention relates to an electronic equipment subrack.A projection plan view of an upper guide rail plate and a lower guide rail plate is rectangular when the upper guide rail plate and the lower guide rail plate are flatly placed, and the subrack comprises a section of raised flat plate in the middle and a section of bent vertical plate positioned at the edge, wherein more than two guide rail grooves vertical to the vertical plate are arranged on the raised flat plate; riveting nuts for mounting a circuit mother board are arranged on the bent vertical plate, and through holes for mounting parts are arranged on the plane close to and far from the vertical plate; connecting holes matched with the through holes of the upper guide rail plate and the lower guide rail plate are respectively formed in the side plates, the cross beam and the fixing lugs, nut holes are formed in the end heads of the two ends of the cross beam in the length direction, and nut holes are formed in two planes which are adjacent to the cover plate fixing block and perpendicular to each other. The invention also relates to an assembling method of the plug box of the electronic equipment. The electronic equipment plug box has the obvious advantages of small quantity and variety of parts, low manufacturing difficulty and simple assembly.

摘要：【中文】一种配电网三遥开关遥控防误增强校验方法，该方法包括检查终端地址是否唯一，判断遥信采集点信息是否正确，设备验证遥控点信息是否正确，检查终端通信参数是否正确，判断开关设备与配电终端命名是否一致，检查配电终端通道状态是否正常，判断基于历史遥控数据的设备关联校验是否正确，七种信息校验步骤，该方法能够有效降低遥控操作的错误风险，确保配电网安全操作和运行。 【EN】A method for remotely controlling and preventing error enhancement verification of a power distribution network three-remote switch comprises seven information verification steps, wherein the seven information verification steps comprise checking whether a terminal address is unique, judging whether remote signaling acquisition point information is correct, verifying whether remote control point information is correct by equipment, checking whether terminal communication parameters are correct, judging whether a switch device and a power distribution terminal are consistent in name, checking whether a power distribution terminal channel state is normal, judging whether equipment association verification based on historical remote control data is correct, and effectively reducing error risks of remote control operation and ensuring safe operation and running of the power distribution network.

摘要：【中文】本发明提供了一种顺控操作中二次闭锁信号防误方法，本发明在顺控系统中根据调控系统二次闭锁信号选取及应用规则构建二次闭锁信号库，形成操作设备与二次闭锁信号的关联关系，并组织顺控闭锁信号服务的检索接口，并关联信号状态，在顺控过程中增加自动对二次闭锁信号的检索和处理机制，当在顺控过程中出现提示类信号时，顺控暂停；出现闭锁类信号时，直接中断顺控，可有效避免顺控的误操作，提高电力生产的安全性，为智能电网提供更加安全可靠的新防线。 【EN】The invention provides a secondary locking signal anti-error method in sequence control operation, which constructs a secondary locking signal library in a sequence control system according to the selection and application rules of a secondary locking signal of a regulation and control system, forms the incidence relation between operation equipment and the secondary locking signal, organizes a retrieval interface of sequence control locking signal service, associates signal states, adds an automatic retrieval and processing mechanism for the secondary locking signal in the sequence control process, and suspends sequence control when a prompt signal appears in the sequence control process; when a locking signal occurs, sequential control is directly interrupted, misoperation of sequential control can be effectively avoided, safety of power production is improved, and a safer and more reliable new defense line is provided for the smart power grid.

摘要：【中文】一种基于故障状态遥感技术的可视化远程运维方法，该方法包括：移动终端通过自带的通信接口或扩展接口与现场故障装置连接，并与私有云服务器连接，进行实时双向数据流传输；私有云服务器与移动终端和远端运维人员的PC装置通信，将通过PC装置发出的信息同步至移动终端，将移动终端转发的信息同步至PC装置；PC装置上传指令至私有云服务器，接收、处理、展示私有云服务器传来的数据，对现场故障装置进行运维管理。还包括一种基于故障状态遥感技术的可视化远程运维系统。可以直接看到现场情况，问题定位更高效；本发明实施例能够直接与现场故障装置通信，问题处理更快速；无需购买专用远程维护支持装置，成本更低。 【EN】A visual remote operation and maintenance method based on a fault state remote sensing technology comprises the following steps: the mobile terminal is connected with the field fault device through a communication interface or an expansion interface and is connected with the private cloud server to perform real-time bidirectional data stream transmission; the private cloud server is communicated with the mobile terminal and a PC device of a remote operation and maintenance worker, information sent by the PC device is synchronized to the mobile terminal, and information forwarded by the mobile terminal is synchronized to the PC device; and the PC device uploads an instruction to the private cloud server, receives, processes and displays data transmitted by the private cloud server, and performs operation and maintenance management on the field fault device. The system also comprises a visual remote operation and maintenance system based on the fault state remote sensing technology. The field situation can be directly seen, and the problem location is more efficient; the embodiment of the invention can directly communicate with the field fault device, and the problem processing is faster; and a special remote maintenance supporting device is not required to be purchased, so that the cost is lower.

摘要：【中文】一种多任务运行状态的监视方法，该方法包括以下步骤：定义一个N个任务元素的一维数组作为全局变量Task_Surv[N]；(N为正整数且N>1)在初始化任务中，对已定义的全局变量数组Task_Surv中各元素进行赋初值0xFF操作；在被连续调度的任务中，只对全局变量数组Task_Surv中某一个元素Task_Surv[i](i为对应的任务号，取值为从0到N‑1的任意整数)进行赋值0xFF操作；任务调度器按照优先级顺序对每个任务进行调度；在中断服务程序中增加监视操作，当中断被执行一次，则对任务进行一次监视。 【EN】A method of monitoring the operational status of a plurality of tasks, the method comprising the steps of: defining a one-dimensional array of N Task elements as a global variable Task _ Surv [ N ]; (N is a positive integer and N >1) in the initialization Task, performing initial value 0xFF operation on each element in the defined global variable array Task _ Surv; in the continuously scheduled tasks, only assigning 0xFF operation to one element Task _ Surv [ i ] (i is a corresponding Task number and takes any integer from 0 to N-1) in the global variable array Task _ Surv; the task scheduler schedules each task according to the priority order; monitoring operation is added in the interrupt service program, and when the interrupt is executed once, the task is monitored once.

摘要：【中文】一种变桨轴承失效的预警方法，该方法包括以下步骤：对机组数据进行采集并存储；判断机组数据采集周期是否结束；如果结束，则对变点进行评估；根据评估结果与预警阈值的对比判断是否报警。还包括一种变桨轴承失效的预警系统。本发明通过分析计算风力发电机变桨过程中五度接近开关值的变化趋势，判断风力发电机变桨轴承运行异常情况，及时发现变桨轴承的异常，能够提前判断隐患，避免故障停机的发生。通过对变桨轴承变桨过程中的运行参数进行分析计算，实现难度小，成本低，而且评估效果有很大改善。 【EN】A method for early warning failure of a variable pitch bearing comprises the following steps: collecting and storing unit data; judging whether the unit data acquisition period is finished or not; if the process is finished, the change point is evaluated; and judging whether to alarm or not according to the comparison between the evaluation result and the early warning threshold value. The early warning system for the failure of the variable-pitch bearing is further included. According to the method, the abnormal operation condition of the variable pitch bearing of the wind driven generator is judged by analyzing and calculating the variation trend of the five-degree approach switch value in the variable pitch process of the wind driven generator, the abnormality of the variable pitch bearing is found in time, the hidden danger can be judged in advance, and the fault shutdown is avoided. By analyzing and calculating the operation parameters of the pitch bearing in the pitch changing process, the realization difficulty is low, the cost is low, and the evaluation effect is greatly improved.

摘要：【中文】本发明涉及一种多回路电压分配和选择电路及其实现方法，适用于配网终端设备DTU与8路配电线损模块的配套应用，馈线电压经过电阻和电压互感器变换为弱电流信号，再经过I/V变换电路、变成驱动能力强的电压信号，该电压信号作为小信号母线进行多路分配；经多路分配后的电压信号经过模拟开关选择后输出到电压跟随器、经电压跟随器输出后最后输入到计量芯片的电压采集端。本发明将电压分配和选择转移到弱电侧进行，增强了电路的电磁兼容性能；使用I/V变换电路在输出端进行电压分配，使用模拟开关进行电压选择，提高了电路的可靠性；两路输入馈线之间通过两级PT隔离，隔离强度显著提高；省掉了继电器，减少了PT数量、成本降低。 【EN】The invention relates to a multi-loop voltage distribution and selection circuit and an implementation method thereof, which are suitable for matching application of a distribution network terminal device DTU and an 8-path distribution line loss module, wherein the voltage of a feeder line is converted into a weak current signal through a resistor and a voltage transformer, and then is converted into a voltage signal with strong driving capability through an I/V conversion circuit, and the voltage signal is used as a small signal bus to carry out multi-path distribution; the voltage signals after the multi-path distribution are selected by the analog switch and then output to the voltage follower, and the voltage signals are output by the voltage follower and finally input to the voltage acquisition end of the metering chip. The invention transfers the voltage distribution and selection to the weak current side, thus enhancing the electromagnetic compatibility of the circuit; voltage distribution is carried out at the output end by using the I/V conversion circuit, and voltage selection is carried out by using the analog switch, so that the reliability of the circuit is improved; the two paths of input feeder lines are isolated by two stages of PT, so that the isolation strength is obviously improved; the relay is omitted, the PT number is reduced, and the cost is reduced.

摘要：【中文】本发明涉及一种启动值可调的继电保护装置的遥信采集实现方法，在光电耦合器件的次级输出和CPU输入之间增加模数转换器；模数转换器将光电耦合器件的次级输出电压转换成数字量输入给CPU；CPU将采集到的电压数值跟正向阈值和负向阈值进行比较，判断是否遥信变位：当前遥信输出状态为0时，检测到电压升高，并高于正向阈值，将遥信输出置为1；当前遥信输出状态为1是，检测到电压降低，并低于负向阈值时，将输出状态置为0。本发明由CPU采集模数转换器的输出，并进行遥信变位判断；使输出相对于输入具有滞回特性，增加抗干扰性能；可以设定额定值为110V和220V两套正向阈值和负向阈值，根据现场实际需求选择使用，实现110V和220V的兼容。 【EN】The invention relates to a remote signaling acquisition implementation method of a relay protection device with an adjustable starting value, wherein an analog-to-digital converter is added between the secondary output of a photoelectric coupling device and the input of a CPU (central processing unit); the analog-to-digital converter converts the secondary output voltage of the photoelectric coupler into digital quantity and inputs the digital quantity to the CPU; the CPU compares the acquired voltage value with a positive threshold and a negative threshold, and judges whether telecommand deflection exists: when the current remote signaling output state is 0, detecting that the voltage rises and is higher than a forward threshold value, and setting the remote signaling output to be 1; when the current remote signaling output state is 1, the voltage is detected to be reduced and is lower than a negative threshold, and the output state is set to be 0. The CPU collects the output of the analog-digital converter and carries out remote signaling deflection judgment; the output has hysteresis characteristics relative to the input, and the anti-interference performance is improved; two sets of positive threshold values and negative threshold values of 110V and 220V can be set, and the threshold values are selected for use according to actual field requirements, so that the compatibility of 110V and 220V is realized.

摘要：【中文】本发明提供了一种配电网单相接地故障识别启动方法及系统，本发明采用零序电压采样值突变作为单相接地故障启动判据，相对于传统方法当发生高阻接地故障时，零序电压有效值很小，零序电压有效值的变化量也很小，造成单相接地故障无法识别和切除，本发明采用零序电压的采样值突变作为单相接地故障的启动判据，由于采样值比有效值数值更大，作为接地判断启动条件，选取|x_t‑x’_t|>2U且x_t>2U时，计为一次零序电压采样值突变，具有灵敏度高的优点；当零序电压采样值突变连续发生三次，才启动单相故障接地判断，用三次突变，可有效过滤零序电压被干扰产生的偶然突变情况，具有稳定可靠的优点。 【EN】The invention provides a method and a system for identifying and starting a single-phase earth fault of a power distribution network, wherein the invention adopts sudden change of a zero sequence voltage sampling value as a single-phase earth fault starting criterion, and compared with the traditional method, when a high-resistance earth fault occurs, the effective value of zero sequence voltage is very small, and the change quantity of the effective value of zero sequence voltage is also very small, so that the single-phase earth fault cannot be identified and removed_t‑x’_t|>2U and x_t>When the voltage is 2U, the sampling value is counted as a sudden change of the zero sequence voltage sampling value, and the method has the advantage of high sensitivity; when the zero sequence voltage sampling value mutation continuously occurs three times, the single-phase fault grounding judgment is started, and the three-time mutation is usedThe method can effectively filter accidental sudden change caused by interference of the zero sequence voltage, and has the advantages of stability and reliability.

摘要：【中文】本发明涉及一种基于构造两点乘积法的幅值突变量启动方法，利用两个相邻电流采样点、通过差分算法和平滑算法构造正交采样点，计算得到差分数据和平滑数据；将差分数据和平滑数据采用两点乘积法计算电流幅值，通过两点乘积法快速计算模拟量电流幅值；电流幅值计算完成进行缓存，缓存长度至少三个周期；再通过电流幅值二阶差分进行突变量启动判断，如果连续3个采样时刻都满足突变量启动判据，则突变量启动。本发明能实时反映数据变化，更能保证计算结果的可靠性；能够直接反映当前幅值的变化，为采用幅值进行突变量启动提供了可行性；采用时效性比较高的幅值进行突变量启动判断，在任何故障时刻都能及时稳定的判断出突变量启动。 【EN】The invention relates to an amplitude break variable starting method based on a two-point product construction method, which comprises the steps of constructing orthogonal sampling points by utilizing two adjacent current sampling points through a difference algorithm and a smoothing algorithm, and calculating to obtain difference data and smooth data; calculating the current amplitude of the difference data and the smooth data by adopting a two-point product method, and quickly calculating the analog quantity current amplitude by adopting the two-point product method; after the current amplitude is calculated, caching is carried out, and the caching length is at least three cycles; and then carrying out sudden change starting judgment through current amplitude second-order difference, and starting sudden change if continuous 3 sampling moments meet the sudden change starting criterion. The invention can reflect the data change in real time and can better ensure the reliability of the calculation result; the change of the current amplitude can be directly reflected, and feasibility is provided for starting the mutation amount by adopting the amplitude; and the amplitude with higher timeliness is adopted to judge the sudden change starting, and the sudden change starting can be stably judged in time at any fault moment.