Method for planning hybrid power distribution network with renewable energy generation

Abstract

A method for planning a hybrid power distribution network with renewable energy generation is provided, which includes an AC-DC hybrid power distribution network. The AC-DC hybrid power distribution network includes a DC part and an AC part. Both the AC part and the DC part can be connected to a renewable energy power generation device and a user load. The DC part and the AC part are connected through power electronic converter equipment. The AC part is also connected to an external power grid. The purpose of the invention is to provide a method for planning an AC-DC hybrid power distributionnetwork with renewable energy generation that can well take into account the operation cost of the renewable energy generation and the supply benefits of the hybrid power distribution network, takes into account the randomness of the renewable energy power generation output power, and takes into account the needs of the power distribution network to participate in external power market transactions.

Description

technical field [0001] The invention belongs to the technical field of power distribution, and in particular relates to a planning method for a hybrid distribution network including renewable energy power generation. Background technique [0002] The penetration rate of renewable energy power generation such as wind power and photovoltaic power generation in the distribution network is increasing day by day, which provides new means for solving the local load balance of the distribution network and improving the reliability of power supply. But on the one hand, the initial output effects of these renewable energy power generation are different. For example, the output of photovoltaic power generation is DC, while the output of wind power generation is AC. The unified conversion to AC to supply power to loads reduces the efficiency of power utilization and increases equipment investment. Therefore, AC and DC coexist. The hybrid distribution network is a new development trend....

AI Technical Summary

Problems solved by technology

The planning methods of a small number of AC-DC hybrid distribution networks do not consider the randomness of renewable energy power generation, lack of consideration of the distribution network's participation in power market transactions, and the goals considered in the norms are relatively single, resulting in low general applicability of the obtained planning schemes , the precision of the planning result is not high

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