With a long industrial chain and a powerful ability to drive other industries,the automobile manufacturing industry has a prominent strategic position in the national economy.In recent years,many countries have put on...With a long industrial chain and a powerful ability to drive other industries,the automobile manufacturing industry has a prominent strategic position in the national economy.In recent years,many countries have put on their agenda the digitalization of the automobile manufacturing industry,leading to an connected,autonomous,shared,and electric(also known as CASE)①development trend in the industry.As one of the six major automobile industry clusters in China,the Chengdu-Chongqing economic circle has achieved initial results in the digital transformation of the automobile manufacturing industry.However,the region is still faced with some constraints,such as insufficient digital infrastructure,relatively slow development of new automobile products,insufficient innovation ability of the automobile industry,and complex digital transformation of small and medium-sized automobile enterprises(automobile SMEs).This paper intends to construct a framework for the mechanism of action of the digital transformation in the automobile manufacturing industry,analyze the effects of the digital transformation of the automobile manufacturing industry in the Chengdu-Chongqing economic circle,and propose feasible paths for the digital transformation of the automobile manufacturing industry in the region by drawing on domestic and international experience in this regard.The specific paths include:(a)Smoothing the“dual-core”data chain to facilitate the digital transformation of the automobile manufacturing industry;(b)Developing the new energy vehicle(NEV)industry to upgrade the quality of automobile products;(c)Achieving corner overtaking in the digital transformation of the automobile manufacturing industry with digital technology;(d)Jointly building the automobile industrial park to promote the digital transformation of the industry;(e)Addressing problems facing automobile SMEs in digital transformation via targeted policy tools.展开更多
电弧炉类非线性负荷常常会产生一个频段范围的时变间谐波,易与配电网产生并联谐振,严重危害配电网的安全可靠运行。提出一种间谐波谐振模态转移方法,通过静止无功补偿器(static var compensator,SVC)装置的接入改变系统的节点导纳矩阵,...电弧炉类非线性负荷常常会产生一个频段范围的时变间谐波,易与配电网产生并联谐振,严重危害配电网的安全可靠运行。提出一种间谐波谐振模态转移方法,通过静止无功补偿器(static var compensator,SVC)装置的接入改变系统的节点导纳矩阵,使并联谐振的频率偏移出间谐波源频谱范围,然后基于模态分析法和序列二次规划算法,优化SVC装置的最佳接入点。在Matlab中建立优化算法仿真算例,验证了所提方法的有效性。展开更多
文摘With a long industrial chain and a powerful ability to drive other industries,the automobile manufacturing industry has a prominent strategic position in the national economy.In recent years,many countries have put on their agenda the digitalization of the automobile manufacturing industry,leading to an connected,autonomous,shared,and electric(also known as CASE)①development trend in the industry.As one of the six major automobile industry clusters in China,the Chengdu-Chongqing economic circle has achieved initial results in the digital transformation of the automobile manufacturing industry.However,the region is still faced with some constraints,such as insufficient digital infrastructure,relatively slow development of new automobile products,insufficient innovation ability of the automobile industry,and complex digital transformation of small and medium-sized automobile enterprises(automobile SMEs).This paper intends to construct a framework for the mechanism of action of the digital transformation in the automobile manufacturing industry,analyze the effects of the digital transformation of the automobile manufacturing industry in the Chengdu-Chongqing economic circle,and propose feasible paths for the digital transformation of the automobile manufacturing industry in the region by drawing on domestic and international experience in this regard.The specific paths include:(a)Smoothing the“dual-core”data chain to facilitate the digital transformation of the automobile manufacturing industry;(b)Developing the new energy vehicle(NEV)industry to upgrade the quality of automobile products;(c)Achieving corner overtaking in the digital transformation of the automobile manufacturing industry with digital technology;(d)Jointly building the automobile industrial park to promote the digital transformation of the industry;(e)Addressing problems facing automobile SMEs in digital transformation via targeted policy tools.
文摘电弧炉类非线性负荷常常会产生一个频段范围的时变间谐波,易与配电网产生并联谐振,严重危害配电网的安全可靠运行。提出一种间谐波谐振模态转移方法,通过静止无功补偿器(static var compensator,SVC)装置的接入改变系统的节点导纳矩阵,使并联谐振的频率偏移出间谐波源频谱范围,然后基于模态分析法和序列二次规划算法,优化SVC装置的最佳接入点。在Matlab中建立优化算法仿真算例,验证了所提方法的有效性。
