Virtual reservoir model and virtual reservoir water level calculation method

Abstract

Virtual reservoir model and virtual reservoir water level calculation method, based on power distribution proportion to allocate reservoir resources, inflow water and reservoir capacity are allocatedaccording to power distribution proportion, corresponding to left and right bank power stations to establish left and right bank virtual reservoirs respectively; if the operation mode of a certain side of the power station is likely to break through the constraint conditions, the real-time dispatching will be adjusted. However, in the calculation of virtual reservoir model, according to the satisfying constraint, more virtual outflow water is generated in order to satisfy the constraint, which is automatically abandoned by one side and removed from the allocated water. The virtual water levelcalculated by the invention can directly reflect the power generation, dispatching operation and the like of the left and right shore power stations; It has reference value to the utilization of waterresources and the distribution of electricity in the two networks.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower, in particular to a virtual reservoir model and a method for calculating the water level of the 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 Corporation of China and China Southern Power Grid Co., Ltd. The two power stations operate independently, with no electrical connection in between. The power distribution ratio of power stations on the left and right bank is 42:58 in dry season (November-December, January-May), and 50:50 in 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 specified ratio, it is necessary to count the deviation ...

AI Technical Summary

Problems solved by technology

The actual operating reservoir capacity is limited, and there are many operational constraints. At present, there is no intuitive indicator to reflect the historical power generation and water consumption of the two power stations. When resources are limited, for example, when the maximum peak shaving amount of the reservoir is less than the peak shaving demand of the two power grids, the current power distribution is adopted The method of proportional distribution of peak shaving amount does not take into account the different contributions of the two power stations to the existing peak shaving amount for the reservoir in the early operation

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