Electric energy integration method based on time mark measurement
An integration method and electric energy technology, applied in the measurement of electrical variables, measuring devices, instruments, etc., can solve problems affecting decision analysis, affecting calculation accuracy, etc., so as to reduce the statistical error of electricity, ensure integrity, and reduce the statistical error of electricity. Effect
Active Publication Date: 2013-10-09
SUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +3
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Problems solved by technology
However, due to technical reasons, all electrical energy collection systems currently use a fixed-period electrical energy integration method. Although it allows the integration period to be adjusted to reduce statistical errors, no matter how the integration period is adjusted, electrical energy statistical errors always exist. It will inevitably affect the calculation accuracy of functions such as electric energy statistical accounting and line loss statistics, thus affecting the decision-making analysis of relevant departments
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Embodiment 1
[0013] Embodiment one: see attached figure 1 And attached figure 2 As shown, an electric energy integration method based on time-scale measurement is used to make statistics on the electricity of the power grid. This method is implemented based on the real-time database deployed in the power dispatching automation system of the power grid, and establishes measuring points for storing real-time active power values. , and configure the compression dead zone parameters for each measuring point.
[0014] The method includes:
[0015] (1) Real-time acquisition of active power values with time scale.
[0016] Perform a rationality check on the collected active power value, that is, check whether it has a time stamp. If the verification is normal, proceed to step (2); if the verification is abnormal, mark and correct the active power value and proceed to step (2).
[0017] (2) Compress and process the collected active power values and write them into the real-time database....
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The invention relates to an electric energy integration method based on time mark measurement. The method comprises the steps of (1) collecting active power values with time marks in a real-time mode, (2) writing the active power values in a real-time database, during the process, only extracting the active power values with the change values larger than reasonable change precision to be written in the real-time database, (3) when the active power values are written in the real-time database, starting electric quantity statistics, obtaining continuous time intervals of the active power values according to the time marks carried by the active power values, conducting integration statistics according to the active power values and the continuous time intervals of the active power values, obtaining instant electric quantities inside the time intervals, (4) accumulating the instant electric quantity inside each time interval, and obtaining a statistical value of electric quantities. According to the electric energy integration method based on the time mark measurement, the error problem of the electric quantity statistics is solved, the electric quantity statistical error in the field of electric grid operation automation is reduced, therefore, the statistical error of functions such as electric energy statistical accounting and line loss statistics is reduced, and integrity, reliability and consistence of electric energy data are ensured.
Description
technical field [0001] The invention relates to a data processing and analysis method for electric power in a power grid, which belongs to the field of power system informatization and automation. Background technique [0002] With the continuous improvement of power system informatization and automation level and the development of computer technology, electric energy collection system has been widely used in power grid operation and management, ensuring the reliability, integrity, consistency, timeliness and safety. [0003] At present, all electric energy harvesting systems use the calculation method of electric energy integration for electric quantity statistics. The electric energy integration method is a general method for electric quantity calculation. We know: electric quantity = active power × time, so the instantaneous electric quantity multiplied by the duration of the power is the instantaneous electric quantity of this period, and the statistical electric quan...
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Inventor 赵家庆赵京虎李汇群张珂珩霍雪松季胜鹏钱科军赵裕啸杨洪丁宏恩王晓东吕洋俞瑜唐胜
Owner SUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER