光伏产业政策叙事主题时序演化特征研究

Research on Temporal Evolution Characteristics of Narrative Theme of Photovoltaic Industry Policy

首先,定义光伏产业政策叙事的3W框架,抽取光伏产业政策结构化内容,基于词频-逆文档算法,挖掘2011—2022年光伏产业政策叙事主题关键词;其次,采用共现网络方法,可视化分析光伏产业政策叙事主题;最后,耦合时序要素,对应分析光伏产业政策叙事主题焦点。结果表明:2011—2019年光伏产业政策叙事主题聚焦于推广分布式光伏应用、解决光伏消纳等问题,而2020—2022年光伏产业政策叙事主题逐渐转向提升储能、保障消纳等方面。省域政策对国家政策的执行度较高,政策主题基本保持一致,但省域政策会根据自身发展实际因地制宜地施策,各地发展方向均有所侧重。从对应分析来看,不同阶段国家政策的叙事主题以及不同阶段省域政策的叙事主题均存在显著差异。省域政策年际间衔接紧密,政策执行力度强,政策寿命长;国家层级与省域层级的叙事主题和时间变量之间都存在非连续的局部相关性。

Firstly,this paper innovatively defined the 3W framework of PV industry policy narrative,and extracted the structured content of PV industry policy.Secondly,the thesis mined the narrative theme keywords of photovoltaic industry policy from 2011 to 2022 based on Term Frequency-inverse Document Frequency Algorithm algorithm.Proceed to the next step,the co-occurrence network method was used to visually analyze the narrative theme of photovoltaic industry policy.At last,the paper carried out the correspondence analysis of the narrative theme focus of photovoltaic industry by coupling with spatial and temporal elements.The results show that:Policy narrative theme has focused on promoting distributed photovoltaic applications and solving photovoltaic consumption and other issues during 2011—2019,while the policy narrative theme has gradually shifted to improving energy storage and ensuring consumption during 2020—2022.Provincial policies have a high degree of implementation of national policies,and the policy themes are basically consistent,however,provincial policies suit their measures to local conditions and pay close attention to their own emphasis.From the perspective of correspondence analysis,national policy themes are distributed in four quadrants,and there are significant differences in the narrative themes of national policies at different stages.There are also significant differences in the narrative themes of provincial policies at different stages.Provincial policies are closely linked between years,with strong policy execution and a longer policy lifespan.There is a discontinuous local correlation between narrative themes and time variables at the national and provincial levels.