Automatic switching control method for wide-area emergency power source of electric power system

A backup power supply, automatic switching technology, applied in emergency power supply arrangements, information technology support systems, electrical components, etc., can solve the problems that have not been proposed in literature, the backup power supply does not meet the voltage conditions, and there is no practical product.
CN101673965BActive Publication Date: 2012-08-08SOUTH CHINA UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2012-08-08

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Abstract

An automatic switching wide-area control method for a wide-area emergency power source of an electric power system is disclosed, which comprise the steps: 1) a primary station terminal acquires wide-area state information and switch information of the electric power system; 2) the primary station terminal represents an action list of a load feeder switch of a transforming plant; 3) the primary station sends the action list of the load feeder switch; 4) a plant station terminal receives the action list of the load feeder switch; 5) the plant station terminal detects an automatic switching device (2) for the emergency power source; 6) the plant station terminal switches off circuit switches by the side of the automatic switching device for the emergency power source at first and then cuts off, according to a control instruction, the load feeder required to be cut off, and sends information to the primary station terminal (1). The control method takes the safety of equipment by the side of the distant emergency power source into consideration while controlling the emergency power source to automatically switch, which can avoid the accident of the electric power system spreading, and local small power sources are difficult to apply an interference, thus causing no accident of erroneous motion and motion denial, in addition, since the cooperative operation with a safety control device can be realized, the utilization rate of the automatic switching device for the emergency power source and the reliability of the transforming plant in supplying power can be enhanced directly.
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Description

technical field

[0001] The invention relates to the technical field of automatic control of electric power systems, in particular to a control method for automatic switching of wide-area standby power sources in electric power systems. Background technique

[0002] With the continuous expansion of the power system, it becomes more and more difficult to interrupt the short-circuit current of the regional power system, and in order to reduce the impact of the electromagnetic ring network on the safety of the power system, when the higher-level power system has formed a ring network, the regional power system The lower-level power system will break down the loop and provide power supply in radial partitions. However, the reliability of the power system after de-looping is significantly reduced. For this reason, the "automatic switching of backup power supply (in industry, it is often referred to as: automatic switching of backup power supply or BZT, hereinafter referred to as "...

Claims

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