Offshore wind plant harmonic conduction characteristic analysis method considering cable distribution parameters

The invention provides an offshore wind power plant harmonic conduction characteristic analysis method considering cable distribution parameters, which comprises the following steps of: S1, establishing a circuit model of grid connection of a wind power plant through a submarine cable line, considering submarine cable distribution parameters, and establishing a relational expression about submarine cable harmonic amplification, submarine cable length and harmonic frequency; s2, analyzing conduction amplification characteristics of harmonic voltage in the cable line; s3, analyzing conduction amplification characteristics of harmonic current in the cable line; and S4, harmonic bidirectional conduction characteristics under different load levels and power grid strength conditions are analyzed. The operation process is simplified, and harmonic amplification characteristic analysis is facilitated. 本发明提出计及电缆分布参数的海上风电场谐波传导特性分析方法，包括以下步骤：S1，建立风电场经海缆线路并网的电路模型，并计及海缆分布参数，建立关于海缆谐波放大与海缆长度、谐波频次的关系式；S2，分析电缆线路中谐波电压的传导放大特性；S3，