CN105811566A - Station domain protection based intelligent locking logic automatic switching equipment - Google Patents

Abstract

The invention discloses station domain protection based intelligent locking logic automatic switching equipment. The output end of an automatic switching action signal monitoring assembly of the equipment is connected with the input end of an automatic switching action intelligent analysis system of the equipment; the output end of the automatic switching action intelligent analysis system of the equipment is connected with an intelligent locking apparatus; the automatic switching action signal monitoring assembly of the equipment is used for monitoring the action signal of the automatic switching equipment and carrying out standardizing processing on the action signal; the automatic switching action intelligent analysis system of the equipment is used for receiving the action signal, analyzing the action signal of the equipment, and determining whether the automatic switching action is locked or not under various fault conditions; and the intelligent locking apparatus is used for receiving a signal indicating whether to lock or not so as to control the locking action of the intelligent locking apparatus.

Description

Translated fromChinese

一种基于站域保护的智能闭锁逻辑备自投装置An Intelligent Blocking Logical Standby Automatic Switching Device Based on Station Domain Protection

技术领域technical field

本发明涉及一种基于站域保护的智能闭锁逻辑备自投装置。The invention relates to an intelligent locking logical backup automatic switch-on device based on station domain protection.

背景技术Background technique

随着社会经济的高速发展，供电负荷的逐年增长，电网规模的不断扩大，智能电网技术的深入发展，站内通信技术的不断更新，对二次专业的运行管理也提出了更高的要求。当前的变电站常用的备自投主要基于一定范围内一次设备的多个模拟量和开关量进行备投逻辑判断，与主变后备保护有一定的闭锁关系，但是在复杂故障下和保护拒动情况下，备自投仍然不可避免出现错误动作的情况。With the rapid development of social economy, the increase of power supply load year by year, the continuous expansion of power grid scale, the in-depth development of smart grid technology, and the continuous update of communication technology in the station, higher requirements are put forward for the secondary professional operation management. The current standby automatic switching commonly used in substations is mainly based on the multiple analog and switching values of the primary equipment within a certain range for the logical judgment of standby switching, which has a certain blocking relationship with the backup protection of the main transformer, but under complex faults and protection refusal Under such circumstances, it is still inevitable that there will be wrong actions in the self-assessment of the equipment.

发明内容Contents of the invention

本发明提供了一种基于站域保护的智能闭锁逻辑备自投装置，它运用站域保护原理，通过搜集全站保护动作信号，对备自投的闭锁逻辑进行改进，解决在特定方式下和各种故障条件下备自投动作是否闭锁的问题。The present invention provides an intelligent locking logic standby automatic switching device based on station domain protection. It uses the principle of station domain protection to improve the blocking logic of standby automatic switching by collecting the protection action signals of the whole station, and solves the problem of in a specific way and The question of whether the standby automatic switching action is blocked under various fault conditions.

本发明采用了以下技术方案：一种基于站域保护的智能闭锁逻辑备自投装置，其特征是它包括设备的备自投动作信号监测总成、设备的备自投动作智能分析系统和智能闭锁装置，设备的备自投动作信号监测总成的输出端与设备的备自投动作智能分析系统的输入端连接，设备的备自投动作智能分析系统的输出端与智能闭锁装置连接，所述的设备的备自投动作信号监测总成用于监测备自投的动作信号并将动作信号进行标准化处理，所述的设备的备自投动作智能分析系统用于接收动作信号，对设备的动作信号进行分析，判断各种故障条件下备自投动作是否闭锁，智能闭锁装置用于接收是否闭锁的信号控制智能闭锁装置的闭锁动作。The present invention adopts the following technical solutions: an intelligent locking logical standby automatic switching device based on station domain protection, which is characterized in that it includes a monitoring assembly for the automatic switching action signal of the equipment, an intelligent analysis system for the automatic switching action of the equipment, and an intelligent Locking device, the output end of the equipment's standby automatic switching action signal monitoring assembly is connected to the input terminal of the equipment's standby automatic switching action intelligent analysis system, and the output end of the equipment's standby automatic switching action intelligent analysis system is connected to the intelligent locking device. The standby automatic switching operation signal monitoring assembly of the equipment described above is used to monitor the automatic switching operation signal of the equipment and standardize the operation signal. The action signal is analyzed to determine whether the standby automatic switching action is blocked under various fault conditions, and the intelligent locking device is used to receive the signal of whether it is blocked or not to control the locking action of the intelligent locking device.

所述的设备的备自投动作信号监测总成包括站内一次设备模拟量监测装置、站内一次设备开关量监测装置、站内保护动作信息监测装置和一次系统接线监测装置。The automatic switching operation signal monitoring assembly of the equipment includes a monitoring device for the analog quantity of the primary equipment in the station, a monitoring device for the switching value of the primary equipment in the station, a monitoring device for the protection action information in the station and a monitoring device for the wiring of the primary system.

本发明具有以下有益效果：采用了以上技术方案后，本发明与以往传统备自投闭锁逻辑相比，具备如下功能：本发明突破原有仅能提取一侧电压电流和开关位置，充分利用站内全部一二次设备信息，能够对故障和非正常状态进行全面掌控，从而对备投逻辑进行精准判断。本发明通过智能判断，能够对设备故障范围进行准确隔离，防止误动或者备投于故障上发生。本发明通过智能判断，能够对设备拒动情况进行识别，提升备自投动作效率。The present invention has the following beneficial effects: After adopting the above technical scheme, the present invention has the following functions compared with the previous traditional standby self-switching locking logic: the present invention breaks through the original and can only extract the voltage, current and switch position of one side, making full use of the All primary and secondary equipment information can fully control faults and abnormal states, so as to accurately judge the backup logic. Through intelligent judgment, the present invention can accurately isolate the fault range of the equipment, and prevent misoperation or standby investment from occurring on faults. The present invention can identify the refusal of the equipment through intelligent judgment, and improve the efficiency of the standby automatic switching operation.

附图说明Description of drawings

图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.

具体实施方式detailed description

在图1中，本发明提供了一种基于站域保护的智能闭锁逻辑备自投装置，它包括设备的备自投动作信号监测总成、设备的备自投动作智能分析系统和智能闭锁装置，设备的备自投动作信号监测总成的输出端与设备的备自投动作智能分析系统的输入端连接，设备的备自投动作智能分析系统的输出端与智能闭锁装置连接，所述的设备的备自投动作信号监测总成用于监测备自投的动作信号并将动作信号进行标准化处理，所述的设备的备自投动作智能分析系统用于接收动作信号，对设备的动作信号进行分析，判断各种故障条件下备自投动作是否闭锁，智能闭锁装置用于接收是否闭锁的信号控制智能闭锁装置的闭锁动作，所述的设备的备自投动作信号监测总成包括站内一次设备模拟量监测装置、站内一次设备开关量监测装置、站内保护动作信息监测装置和一次系统接线监测装置。In Fig. 1, the present invention provides an intelligent locking logical standby automatic switch-on device based on station domain protection, which includes the equipment's standby automatic switch-on action signal monitoring assembly, the equipment's standby automatic switch-on action intelligent analysis system and the intelligent locking device , the output end of the equipment's automatic switching action signal monitoring assembly is connected to the input end of the equipment's automatic switching action intelligent analysis system, and the output end of the equipment's automatic switching action intelligent analysis system is connected to the intelligent locking device. The equipment's standby automatic switching action signal monitoring assembly is used to monitor the standby automatic switching action signal and standardize the action signal. The equipment's standby automatic switching action intelligent analysis system is used to receive the action signal and analyze the equipment's action signal Carry out analysis to judge whether the standby automatic switching action is blocked under various fault conditions, and the intelligent locking device is used to receive the signal of whether it is blocked to control the blocking action of the intelligent blocking device. The standby automatic switching action signal monitoring assembly of the equipment includes a primary Equipment analog quantity monitoring device, primary equipment switching value monitoring device in the station, protection action information monitoring device in the station and primary system wiring monitoring device.

本发明运用站域保护原理，通过一次设备模拟量监测装置、站内一次设备开关量监测装置、站内保护动作信息监测装置和一次系统接线监测装置搜集全站保护动作信号，对备自投的闭锁逻辑进行改进，这样在特定方式下和各种故障条件下备自投动作是否闭锁的问题。例如，大小主变相互备投，开关拒动情况下备投的选择性，内桥不完全接线方式下备投无闭锁等问题。本发明将站内一二次设备信号标准化：需要把不同设备的信号进行标准化处理，形成可行的信号用于备自投闭锁逻辑；按照当前备自投逻辑，研究排查由于一次设备和二次设备配置不完整和信息不完整造成的原因；一二次设备误动和拒动后信号处理和逻辑防范：针对误动和拒动情况下，智能闭锁逻辑有基本的判断，提升动作可靠性；善备自投外部回路和内部通信软件。The present invention uses the principle of station domain protection to collect the protection action signals of the whole station through the primary equipment analog quantity monitoring device, the primary equipment switching value monitoring device in the station, the protection action information monitoring device in the station, and the primary system wiring monitoring device, and the blocking logic of the standby automatic switching Improvement is made to solve the problem of whether the automatic switching action is blocked in a specific mode and under various fault conditions. For example, the large and small main transformers have mutual standby switching, the selectivity of the standby switching when the switch refuses to move, and there is no blocking of the standby switching in the case of incomplete wiring of the inner bridge. The present invention standardizes the signals of the primary and secondary equipment in the station: it is necessary to standardize the signals of different equipment to form a feasible signal for the logic of the standby self-switching; according to the current logic of the standby self-switching, it is necessary to study and check the configuration of the primary equipment and the secondary equipment Causes of incompleteness and incomplete information; signal processing and logic prevention after primary and secondary equipment misoperation and refusal: for the case of misoperation and refusal, the intelligent locking logic has a basic judgment to improve the reliability of the action; Self-switching external loop and intercom software.

Claims (2)

1. null1. the intelligent locking logic backup auto-activating device based on the protection of territory, station，It is characterized in that it includes the prepared auto restart actuating signal of equipment monitoring assembly、The prepared auto restart action intelligent analysis system of equipment and smart locking device，The outfan of the prepared auto restart actuating signal monitoring assembly of equipment is connected with the input of the prepared auto restart action intelligent analysis system of equipment，The outfan of the prepared auto restart action intelligent analysis system of equipment is connected with smart locking device，The prepared auto restart actuating signal monitoring assembly of described equipment is for monitoring the actuating signal of prepared auto restart and being standardized actuating signal processing，The prepared auto restart action intelligent analysis system of described equipment is used for receiving actuating signal，The actuating signal of equipment is analyzed，Judge under various fault condition prepared auto restart action whether locking，Smart locking device controls the block action of smart locking device for the signal receiving whether locking.
2. 2. the intelligent locking logic backup auto-activating device protected based on territory, station according to claim 1, is characterized in that the prepared auto restart actuating signal of described equipment monitoring assembly includes stand interior primary equipment analog quantity monitoring device, interior primary equipment switching value monitoring device of standing, stand interior protection act information monitoring device and primary system wiring monitoring device.