Intelligent load drop alarm method for electric power scheduling monitoring system
An intelligent alarm and monitoring system technology, applied in data processing applications, instruments, calculations, etc., can solve the problems that the dispatching monitoring system cannot make accurate judgments and issue, and the user's power supply is interrupted, so as to shorten the user's power outage time, reduce power loss, The effect of improving the response speed
Inactive Publication Date: 2018-04-13
STATE GRID XINJIANG ELECTRIC POWER CO URUMQI ELECTRIC POWER SUPPLY CO +1
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Problems solved by technology
However, in the actual production work, there are situations where the load suddenly drops and does not drop to zero. This phenomenon is not a natural fluctuation of the load, but reflects the interruption of power supply to users. The dispatching and monitoring system cannot make accurate judgments and send out alarm signals. To remind the power department to investigate the cause and restore the user's power supply
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Embodiment
[0021] Embodiment: An intelligent alarm method for load sudden drop in a power dispatch monitoring system, comprising the following steps:
[0022] Step 1. Select a number of historical load data, make a difference between each historical load data and the load data of the previous sampling point of the historical load data, select the data with negative difference as the sample library of load sudden drop, and use the sample library Carry out probability distribution statistics; determine that the load sudden drop value within 90% of the probability distribution is a normal load fluctuation, and determine the load sudden drop value as the load sudden drop over-limit alarm limit;
[0023] Step 2. Comprehensively consider the accuracy, timeliness, and semaphore of load dump alarms, and formulate intelligent alarm strategies for different causes of load dumps. The principles are:
[0024] a. Exclude impact loads and small loads;
[0025] b. For the switch tripping and planned m...
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The invention discloses an intelligent load drop alarm method for an electric power scheduling monitoring system. Several historical load data are selected, difference between the historical load dataand previous sampling point load data of the historical load data is calculated, the data with the negative difference is selected as a load drop sample database, and probability distribution statistics of the sample database is carried out; the load drop value with probability distribution less than 90% is determined as normal load fluctuation, and the load drop value is determined as a load drop threshold crossing alarm limit value; load drop alarm accuracy, timeliness and semaphore are comprehensively considered, and the intelligent alarm strategies are made for different load drop reasons; calculation functions for the real-time data and the historical data are realized through setting different calculation periods for the same telemetry, and the real-time alarm function is realized.The method is advantaged in that a dispatching monitor is facilitated to discover the load drop phenomenon for the first time, the user power failure time caused by the load drop can be substantiallyshortened, and the electric power fault response speed is improved.
Description
technical field [0001] The invention relates to an intelligent alarm method for load sudden drop in a power dispatching monitoring system. Background technique [0002] At present, when the monitoring system used by the power dispatching department monitors the load, it mainly focuses on whether the limit value allowed by the safe operation of the equipment and the power grid is exceeded. When the limit value is exceeded, the system will send out an alarm message. However, in the actual production work, there are situations where the load suddenly drops and does not drop to zero. This phenomenon is not a natural fluctuation of the load, but reflects the interruption of power supply to users. The dispatching and monitoring system cannot make accurate judgments and send out alarm signals. To remind the power department to investigate the cause and restore the user's power supply. Contents of the invention [0003] The purpose of this application is to propose an intelligent...
Claims
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Login to View More IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06312G06Q50/06
Inventor 王筱杨海龙王亮徐雪涛张怀德李淼何峰彭建易炳星袁少伟张丹王彤宋阳阳孟龙姜杰何海丹
Owner STATE GRID XINJIANG ELECTRIC POWER CO URUMQI ELECTRIC POWER SUPPLY CO