A Distributed Renewable Energy System Optimal Configuration Method Applicable to AC-DC Hybrid

Abstract

The invention discloses a distributed renewable energy system optimal configuration method suitable for an AC and DC hybrid system. The method comprises the steps of (1) determining a topological structure of an AC and DC network; (2) setting the parameters of a model; (3) setting an operation constraint condition of each element in the system; (4) setting a load and an operation mode of the load;(5) setting the operation condition of the system; (6) selecting a system optimization objective; (7) solving to obtain an optimization configuration scheme according to the single-objective or multi-objective algorithm. According to the invention, the complex optimization configuration problem of the AC and DC hybrid system comprising various renewable energy sources, various voltage grades andthe combined cooling heating and power supplying can be solved. The optimization objective is diversified, and the configuration of the system is optimized through selecting a plurality of objective functions according to needs. Meanwhile, the operation condition of the system, including the grid-connected mode, the renewable energy source access constraint, the renewable energy source subsidy form, the demand-side response mode and the like, is fully considered. Therefore, the configuration requirements of different systems can be met. The method is good in applicability and feasibility.

Description

technical field [0001] The invention relates to the field of distributed energy technology, in particular to an optimal configuration method for a distributed renewable energy system suitable for AC and DC hybrids. Background technique [0002] With the rapid growth of the proportion of generalized DC energy-consuming equipment represented by inverter air conditioners, IT loads, and electric vehicles, and the rapid development of distributed renewable energy, the traditional AC distribution network has many AC-DC conversion links, high losses, and low power consumption. Problems such as poor flexibility have become increasingly prominent. The use of AC and DC hybrid power distribution technology is an important means to solve these problems. The distributed renewable energy system using AC-DC hybrid technology is the future development trend of distributed power generation. The optimal configuration of distributed renewable energy systems is the prerequisite for safe, reli...

AI Technical Summary

Problems solved by technology

These optimal configuration methods are usually aimed at a single system, and there is insufficient consideration of the actual operation of the system, resulting in problems such as low applicability and feasibility of the method

In addition, there is a lack of relevant research on the optimal configuration of AC-DC hybrid systems with distributed renewable energy generation and multiple voltage levels

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