Self-healing technology for electric energy collection system
A technology of electric energy collection and technology, applied in the direction of signal transmission systems, instruments, etc., can solve problems such as measurement and calculation analysis errors, and the system cannot effectively collect data, so as to improve continuity and accuracy, and avoid electrical safety accidents and fires Accidents, the effect of avoiding inaccurate measurement data
Inactive Publication Date: 2013-09-04
杭州佳和电气股份有限公司
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[0003] Aiming at the problem that the system cannot effectively collect data when a certain intelligent network power meter fails in practical applications, resulting in a large error in the measurement and calculation analysis of the system within a certain period of time, the present invention proposes the following technical solutions
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[0019] An intelligent network power meter in the system is out of operation due to a fault (whether it is the power meter terminal of the main incoming line or the power meter terminal of the outgoing line branch), and the power flow balance and power distribution system characteristics of power balance can be used to pass the data of other related meters. calculated. The characteristics of the power distribution system are:
[0020] Power flow balance:
[0021] (1) The total active power of the total incoming line of the power distribution system is equal to the sum of the active power of each subordinate outgoing line branch;
[0022] (2) The total reactive power of the total incoming line of the power distribution system is equal to the sum of the reactive power of each subordinate outgoing line branch;
[0023] (3) The active power of each phase of the total incoming line of the power distribution system is equal to the sum of the same-phase active power of each subordin...
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The invention relates to a self-healing technology for an electric energy collection system, which can solve the problem that data measured by the electric energy collection system is inaccurate in a certain period due to a fault of certain intelligent network power meter in practical application. The self-healing technology is achieved through a method comprising the following steps: (1) a master station sends a call datagram; (2) whether a fault ammeter exists is inquired, if yes, the step (3) is performed, otherwise, the step (4) is performed; (3) a system records the number of the fault ammeter; (4) an ammeter state table is sent through broadcast; (5) a related ammeter processes data through an ammeter relation table; and (6) the related ammeter takes over the fault ammeter. The self-healing technology for the electric energy collection system has the benefits that when certain intelligent network power meter fails, another related ammeter can take over the fault ammeter, so that inaccurate data measurement in certain period caused by the ammeter fault is avoided, and the data collection continuity and accuracy of the system are improved remarkably; and further, various accurate indexes of a power distribution system are provided for users, effective management of each electric equipment is achieved, abnormal operation of the power distribution system can be found out timely, and consequently, electrical safety accidents and fire accidents can be avoided.
Description
technical field [0001] The invention relates to the field of electric power system automation, and in particular relates to a self-healing technology of an electric energy collection system. Background technique [0002] The data source of the power monitoring and energy efficiency management system comes from the underlying electric energy collection system. The terminal matched with the electric energy collection system is an intelligent network power meter with metering function. The reliability, accuracy and continuity of the data source are the key to the system. However, in practical applications, it is often encountered that a smart network power meter fails. After the failure, data cannot be collected effectively, which leads to a large error in the measurement and calculation analysis of the system within a certain period of time. Inaccurate indicators of the power distribution system are brought to users, and effective management of various electrical equipment can...
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IPC IPC(8): G08C25/00
Inventor 钱晟
Owner 杭州佳和电气股份有限公司