A Virtual Power Plant Scheduling Optimization Method Based on Riemann Integral

Abstract

The invention discloses a virtual power plant scheduling optimization method based on Riemann integration, which is used to solve the optimal scheduling problem when the internal renewable output and load of the virtual power plant change continuously. Considering that the aggregation units of virtual power plants include gas turbines, wind turbines, pumped storage power plants and loads, in view of the continuous change of renewable energy output and loads, the idea of ​​Riemann integration is applied, and the continuity of variables in time is considered, and the establishment of a model based on Riemann Mann integral based virtual power plant scheduling optimization model. According to the definition of Riemann integral, by dividing, summing and seeking the limit of the dispatching time interval of the virtual power plant, the integral problem is transformed into a limit summation problem, so that the problem can be solved. The invention can provide the optimal scheduling scheme of the virtual power plant adapting to the continuous change of renewable energy output and load within a continuous period of time, provides effective support for decision makers to choose the best strategy, and has certain engineering practical value.

Description

technical field [0001] The invention belongs to the field of electric power system dispatching, and in particular relates to a virtual power plant dispatching optimization method based on Riemann integral. Background technique [0002] Environmental pollution caused by traditional power generation and the concept of sustainable development in today's world have prompted the rapid development of renewable energy including wind power. However, renewable energy power generation is highly random and uncontrollable, and the separate grid connection of renewable energy will affect the safe operation of the power system. In order to overcome the above shortcomings, domestic and foreign scholars put forward the concept of virtual power plant. Through the organic aggregation of renewable energy units, controllable units, loads and energy storage facilities, virtual power plants can not only reduce the impact of intermittent and random renewable energy power generation, but also obta...

AI Technical Summary

Problems solved by technology

However, in reality, renewable energy output and load are a continuously changing function, ignoring the continuity of renewable energy output and load will lead to a disconnect between theory and practice

So far, there is no research on scheduling optimization of virtual power plants considering renewable energy output and load continuity, and the research on this problem has certain practical significance

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