Calculation method of power station deviation electricity based on virtual reservoir

Abstract

Based on the calculation method of power station deviation power in the virtual reservoir, when the actual power generation of the left and right power stations does not meet the constraint conditions, the power is increased to meet the constraint conditions, and the increased power is counted as the left and right bank correction power, and the actual power generation plus correction The power is the virtual power of the power station, and the left and right virtual power is used to calculate the deviation power. The deviation power in the left\right period: according to the power distribution ratio, the left bank\right bank generates more power. If the value is positive, the left bank\right bank needs to return power to the right bank\left bank ; If the value is negative, the right bank\left bank needs to return electricity to the left bank\right bank. Left\right corrected power: If the left\right bank power station does not meet the constraint conditions, calculate the left\right daily corrected power, if the constraints are satisfied, the left\right bank corrected power is 0. On the basis of the virtual reservoir, the present invention establishes a calculation method for the deviation electric quantity which fully considers the comprehensive task undertaken by the power station, and achieves fast, scientific and fair calculation of the deviation electric quantity.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower, in particular to a method for calculating the deviation electric quantity of a power station based on a virtual reservoir. Background technique [0002] The Xiluodu Reservoir is located in the lower reaches of the Jinsha River, at the junction of Sichuan and Yunnan. The power dispatching on the left and right banks belongs to the State Grid and the China Southern Power Grid. The two power stations operate independently, with no electrical connection in between. According to the National Energy Administration, the power distribution ratio of power stations on the left and right banks is 42:58 during the dry season (November-December, January-May), and 50:50 during the wet season (June-October). According to the agreement between the two power grids and Xiluodu Power Plant: when the actual power generation on the left and right banks is not balanced according to the specifi...

AI Technical Summary

Problems solved by technology

[0010] The complex power grid operation and the numerous comprehensive tasks of the power station make the original two calculation methods of deviation electricity unable to reflect the actual situation of power station operation scientifically and fairly. Adjustment, not unanimously approved by both grids

[0011] Due to the complex and changeable reasons for the deviation of electricity, the consequences cannot be reproduced, and it is impossible to conduct a comparative analysis of the real reservoir operation whether the deviation of electricity is generated or not. In addition, the deviation of electricity also has cumulative effects in time and space. How to quickly and Accurate and scientific calculation of deviation power has no successful precedent so far, and it has become an urgent problem to be solved in dispatch management

Images