A method and system for transmission of time-scaled measurement data sections in multi-substations
A data section, multi-substation technology, applied in the direction of digital transmission system, transmission system, information technology support system, etc., can solve the problem that the main station cannot receive the impact load in a timely and accurate manner, so as to improve the monitoring business level, improve the accuracy, improve the The effect of computational precision
Active Publication Date: 2022-08-09
CHINA ELECTRIC POWER RES INST +1
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[0004] The present invention provides a method and system for transmission of multi-substation measurement data section with time scale, which avoids the problem that the main station cannot timely and accurately receive the measurement data of impact load change due to the step change of impact load, and improves the status of the main station Estimate the calculation accuracy, and then improve the monitoring business level of the dispatching master station
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[0057] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0058] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0059] In the conventional power grid state estimation function, the data error is considered to be caused by the measurement, and the error caused by the acquisition time difference is also treat...
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The invention provides a method and a system for transmitting time-scaled measurement data sections in multi-substations, including the substation collecting multi-interval time-scaled measurement data in the substation to generate a single substation's time-scaled measurement data sections; The defined transmission delay test obtains the actual delay of each substation. Based on the actual delay of each substation, the pre-defined substation-side service interface is called to perform synchronous transmission of multiple substations with time-scaled measurement data sections. The above solution avoids the problem that the main station cannot receive the measurement data of the shock load change in a timely and accurate manner due to the step change of the shock load, improves the calculation accuracy of the state estimation of the main station, and further improves the monitoring service level of the dispatching master station.
Description
technical field [0001] The invention belongs to the technical field of electric power automation, and in particular relates to a method and a system for transmitting measurement data sections with time scale in a multi-substation. Background technique [0002] The realization of many functions of the smart grid dispatching technical support system is based on extensive and high-quality grid measurement data. The traditional power grid dispatching automation data is collected in the factory station automation system at a second-level collection and update speed, and sent to the dispatching control center through the transmission protocol and channel. The master station system updates the control threshold with data changes exceeding a certain range, and provides data information that basically conforms to the actual operating conditions of the power grid for grid dispatching. The system generally uses the method of state estimation to study the measurement data in the power ...
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IPC IPC(8): H04L67/60H04L7/00H04L43/0852H04L43/06H04L67/568
CPCH04L7/00H04L43/0852H04L43/06H04L67/568H04L67/60Y04S10/16
Inventor 姚志强赵家庆庄卫金吴艳平徐歆张鸿俞瑜于芳徐秀之田江任浩赵慧吴博文
Owner CHINA ELECTRIC POWER RES INST