Method for processing unmodeled unit in process of forecasting bus load

Abstract

The invention discloses a method for processing an unmodeled unit in the process of forecasting a bus load. The method comprises the following steps of: acquiring history output data and history bus load data of the unmodeled unit; adding the history output data of the unmodeled unit into the history load data of a bus to which the unmodeled unit belongs according to the corresponding relation between the unmodeled unit and the bus, and dynamically regenerating real electrical load data for the bus; performing the conventional bus load forecast and calculation to acquire a forecast value of the bus load; acquiring a power generation plan of the unmodeled unit in a day to be forecast from a regional dispatching center; and deducting the power generation plans of all unmodeled units related to the unmodeled unit from the forecast value of the bus load according to the corresponding relation between the unmodeled unit and the bus to which the unmodeled unit belongs so as to acquire the final bus load forecast result. By the method for processing the unmodeled unit in the process of forecasting the bus load, the forecast precision of the bus load can be effectively improved, a foundation is laid for a provincial dispatching center to analyze an operation mode of a daily plan precisely and arrange various plans reasonably, and safety, high quality, economy and market-oriented operation level of a power grid are improved further.

Description

technical field [0001] The invention belongs to the field of bus load forecasting in electric power systems, and relates to a processing method for an unmodeled unit in bus load forecasting. Background technique [0002] Since my country's power system has the characteristics of wide-area distribution, massive parameters, and complex models, a system of "hierarchical management, hierarchical control, and distributed processing" has naturally formed in the management of electric power production over the years. Under the current situation of hierarchical dispatching in China, the object of bus load forecasting in the bus load forecasting system of provincial regulation is the equivalent load formed during network modeling, generally the 220kV main transformer side of the sub-level dispatching gateway station The equivalent load of the sub-level dispatching of unmodeled generating units at and below 110kV has a very large impact on these equivalent loads. [0003] The current...

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Problems solved by technology

[0011] Due to the existence of non-modeled units in the provincial adjustment and the self-generated generation in the local adjustment, the equivalent load of the bus bar on the high voltage side of the 220kV main transformer in the provincial adjustment may have the phenomenon of reverse power transmission, resulting in load data that may be near zero or even less than zero. Bad data filtering process

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