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Cooling load combined measuring and calculating system suitable for a complex environment

A complex environment and load technology, applied in the field of search management, can solve the problems of basic load differences, inaccurate measurement results, large intraday fluctuations, etc., to achieve good adaptability, high measurement accuracy, improve load prediction accuracy and optimize power grid operation speed effect

Inactive Publication Date: 2019-06-11
国网宁夏电力有限公司经济技术研究院 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Affected by policies such as the new normal of the economy and capacity reduction, the base load varies greatly from month to month, and the traditional cooling load calculation method has limitations in such cases
[0003] The existing cooling load combination measurement system adapted to complex environments has certain disadvantages in use. The existing cooling load combination measurement system adapted to complex environments has inaccurate measurement results due to monthly differences in basic loads and large intraday fluctuations. , for this reason, we propose a combined cooling load calculation system that adapts to complex environments

Method used

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  • Cooling load combined measuring and calculating system suitable for a complex environment
  • Cooling load combined measuring and calculating system suitable for a complex environment
  • Cooling load combined measuring and calculating system suitable for a complex environment

Examples

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Embodiment

[0030] (1) Using the variable-scale basic load calculation model based on SVR-Winters to complete a cooling load calculation for the cooling load;

[0031] (2) Use the decomposition and re-aggregation model based on EMD-Kmeans to eliminate non-meteorological random factors, and complete the secondary cooling load calculation of cooling load.

[0032] A cooling load calculation is to use the support vector regression model to do regression according to the change of the base load on the monthly time scale and related influencing factors. On this basis, the change trend of the base load in the cooling season without temperature changes is obtained, and this trend is introduced into the In the Holt-Winters model, according to the load change in the non-cooling season and the time series distribution characteristics of the base load including the difference between working days and non-working days, the calculation of the base load in the cooling season is completed. On this basis,...

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Abstract

The invention discloses a cooling load combined measuring and calculating system adapting to a complex environment. The method includes the following steps: using a SVR-Winters-based variable-scale basic load measurement model to calculate the primary cooling load for the cooling load; using the EMD-Kmeans-based decomposition and re-aggregation model to eliminate the non-meteorological random factors and complete the cooling load and finishing secondary cooling load calculation eliminating non-meteorological random factors by using a Kmeans decomposition and repolymerization model to completesecondary cooling load measurement and calculation of the cooling load; wherein the primary cooling load measurement refers to regression by applying a support vector regression model according to thechange of the basic load on the monthly time scale and related influence factors. The invention relates to a cooling load combined measuring and calculating system suitable for a complex environment.The invention discloses a cooling load combined measuring and calculating system suitable for a complex environment. The secondary cooling load measurement and calculation solves the problems of large basic load inter-month difference, large daily fluctuation and the like, has high measurement and calculation precision and good adaptability, can effectively improve the load prediction precision and the power grid operation optimization speed, and brings a better use prospect.

Description

technical field [0001] The invention relates to the field of search management methods, in particular to a cooling load combination measurement system adapted to complex environments. Background technique [0002] With the development of load forecasting related technologies, a relatively complete and mature method system has been formed for load forecasting at various time scales, but there are few studies on cooling load, and the model accuracy is low. With the improvement of the level, the use of cooling equipment such as air conditioners has increased, and the cooling load has grown rapidly, and its proportion in the load structure has increased year by year, which has become an important reason for the maximum load in summer to hit new highs. Affected by extreme weather, the fluctuation of cooling load increases, which has a certain negative impact on the operation of the power grid. Its calculation and forecasting work has become one of the important links in the plann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06G06K9/62
Inventor 田星齐彩娟王雁凌马洪宇张坤党东升冯雪车彬胡志冰
Owner 国网宁夏电力有限公司经济技术研究院