Multi-substation time scale measurement data section transmission method and multi-substation time scale measurement data section transmission system
A data cross-section and data measurement technology, which is applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve the problem that the main station cannot receive impact loads in a timely and accurate manner, so as to improve the level of monitoring services, improve accuracy, and improve The effect of computational precision
Active Publication Date: 2019-11-05
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 implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0058] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0059] In the conventional power grid state estimation function, data errors are considered to be caused by measurement, and errors caused by collection time difference are also treated as meas...
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The invention provides a multi-substation time scale measurement data section transmission method and system, and the method comprises the steps that a substation collects multi-interval time scale measurement data in a substation, and generates a single substation time scale measurement data section; and the dispatching master station obtains the actual time delay of each transformer substation according to a predefined transmission time delay test, and calls a predefined transformer substation side service interface to perform synchronous transmission of a plurality of transformer substationmeasurement data sections with time scales based on the actual time delay of each transformer substation. According to the scheme, the problem that the main station cannot timely and accurately receive the impact load change measurement data due to the step change of the impact load is avoided, the state estimation calculation precision of the main station is improved, and the monitoring servicelevel of the dispatching main station is further improved.
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 time-scaled measurement data section of a multi-substation. Background technique [0002] Many functions of the smart grid dispatching technical support system are based on extensive and high-quality grid measurement data. Traditional power grid dispatching automation data is collected in the plant automation system at a second-level collection and update speed, and sent to the dispatching control center through transmission protocols and channels. The master station system updates the control threshold based on data changes beyond a certain range, and provides data information that basically conforms to the actual operating conditions of the power grid for power grid dispatching. The system generally uses the method of state estimation to study the measurement data in the power grid model, check the rationalit...
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IPC IPC(8): H04L29/08H04L12/26H04L7/00
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