Multi-energy virtual power plant regulation capability calculation method considering quick start-stop equipment

Abstract

The invention provides a multi-energy virtual power plant regulation capability calculation method considering quick start-stop equipment and belongs to the technical field of operation control of comprehensive energy systems. The method comprises the following steps of firstly, establishing a multi-energy virtual power plant regulation capability calculation model composed of an objective function and constraint conditions, and converting the model into a matrix form; and solving the multi-energy virtual power plant regulation capability calculation model in the matrix form by using an improved nested column constraint generation algorithm to obtain a multi-energy virtual power plant regulation capability calculation result. The virtual power plant regulation capacity calculated by the method comprises the power reference value and the maximum upward and downward regulation capacities at each scheduling moment, the calculated power reference and regulation capacities ensure that the cost of the multi-energy virtual power plant is minimum, the method can ensure that the calculated regulation capacity is robust and feasible, and secondary scheduling of a power system is avoided. Themethod aims to calculate the regulation capability of the virtual power plant in the peak regulation auxiliary service market and improve flexibility of the power system.

Description

technical field [0001] The invention relates to a method for calculating the adjustment capacity of a multi-energy virtual power plant considering fast start-stop equipment, and belongs to the technical field of operation control of integrated energy systems. [0002] technical background [0003] Under the energy Internet environment, the randomness and volatility of a large number of distributed resources represented by new energy power generation have brought great challenges to the power system and even the energy system, and have a significant impact on the safe, reliable and economical operation of the power grid. As an important form of effective management of distributed resources connected to the power grid, virtual power plants aggregate a large number of distributed resources, controllable loads and energy storage devices into a virtual whole, thereby participating in the operation and scheduling of the power grid, and improving the efficiency of power grid operatio...

AI Technical Summary

Problems solved by technology

For example, the Chinese patent application with the patent application number 201910092126.9 and the title of the invention "A Method for Aggregating the Flexibility of Virtual Power Plants Based on Maximum Embedded Cubes" uses the largest embedded cubes to represent the adjustment capabilities of virtual power plants, but this aggregation method does not consider A variety of energy conversion equipment in the virtual power plant, such as combined heat and power units and electric boilers, does not take into account the characteristics that the regulation capacity of the virtual power plant may change over time, so the aggregation method is too conservative and loses a certain degree of flexibility

Images