Method for evaluating low-carbon comprehensive benefits of offshore wind power system

The invention relates to the technical field of offshore wind power system evaluation and analysis, in particular to an offshore wind power system low-carbon comprehensive benefit evaluation method, low-carbon benefit ctotal and economic benefit etotal are integrated in a certain time span to form offshore wind power system comprehensive low-carbon benefit Cc-e, specifically Cc-e = Ecarbonctotal + etotal, the low-carbon benefit ctotal specifically is ctotal = c '0 + c1 + c2 + c3 + c4, and the economic benefit ctotal is equal to Cc' 0 + c1 + c2 + c3 + c4. The economic benefit etotal is specifically as follows: etotal = e '0 + e1 + e2 + e3 + e4. According to the evaluation method, starting from the actual implementation direction of an engineering project, low-carbon benefits and economic benefits are combined, the influence of reactive compensation on an offshore wind power system is fully considered, and the annual average carbon emission and the annual average economic benefits are measured and calculated in