In the mid-19th century, out of their dissatisfaction with the neglect of the economic theories about other countries’ experiences in the British classic economics, the economists in the German Historical School wo...In the mid-19th century, out of their dissatisfaction with the neglect of the economic theories about other countries’ experiences in the British classic economics, the economists in the German Historical School worked hard to construct an economic theory that was congruent to the developmental stage in their own country’s culture and history. Their deeply-cherished concern about the reality in a transitional era when Germany was approaching modernization drove them to propose that the living condition of the working class be improved by the power of the state. In the late 80’s of the same century, the Methodenstreit of German Historical School versus the Austrian School broke out, after which the mainstream economics was well on its way in terms of theoretical refinement and scrutiny, whereas the influence from the Historical School gradually subsided. Even so, the lessons from the Historical School are still enlightening to research in contemporary social sciences. This paper describes the unique basics in the theory building of the Historical School; explains the background and meaning of its academic origin, research methodology, and the Methodenstreit; and from there, discusses implications for contemporary social sciences.展开更多
为有效提高风电场的并网运行能力,将电池储能系统(battery energy storage system,BESS)-静止同步补偿器(static compensator,STATCOM)串联集成单元与风力发电单元相结合,建立基于Park变换的BESS-STATCOM集成单元和基于异步发电机风力...为有效提高风电场的并网运行能力,将电池储能系统(battery energy storage system,BESS)-静止同步补偿器(static compensator,STATCOM)串联集成单元与风力发电单元相结合,建立基于Park变换的BESS-STATCOM集成单元和基于异步发电机风力发电系统的整体动态数学模型,通过理论推导和基于仿真平台PSCAD对不同风速时风电场的出力及并网点的电压进行计算,结果表明,BESS-STATCOM集成单元具有快速功率调节能力,使风力发电单元可作为调度机组单元运行;在求解包含风电场的电力系统潮流时,可以将其视为PV节点,而且能够显著提高电网的运行稳定性和供电可靠性。展开更多
文摘In the mid-19th century, out of their dissatisfaction with the neglect of the economic theories about other countries’ experiences in the British classic economics, the economists in the German Historical School worked hard to construct an economic theory that was congruent to the developmental stage in their own country’s culture and history. Their deeply-cherished concern about the reality in a transitional era when Germany was approaching modernization drove them to propose that the living condition of the working class be improved by the power of the state. In the late 80’s of the same century, the Methodenstreit of German Historical School versus the Austrian School broke out, after which the mainstream economics was well on its way in terms of theoretical refinement and scrutiny, whereas the influence from the Historical School gradually subsided. Even so, the lessons from the Historical School are still enlightening to research in contemporary social sciences. This paper describes the unique basics in the theory building of the Historical School; explains the background and meaning of its academic origin, research methodology, and the Methodenstreit; and from there, discusses implications for contemporary social sciences.
文摘为有效提高风电场的并网运行能力,将电池储能系统(battery energy storage system,BESS)-静止同步补偿器(static compensator,STATCOM)串联集成单元与风力发电单元相结合,建立基于Park变换的BESS-STATCOM集成单元和基于异步发电机风力发电系统的整体动态数学模型,通过理论推导和基于仿真平台PSCAD对不同风速时风电场的出力及并网点的电压进行计算,结果表明,BESS-STATCOM集成单元具有快速功率调节能力,使风力发电单元可作为调度机组单元运行;在求解包含风电场的电力系统潮流时,可以将其视为PV节点,而且能够显著提高电网的运行稳定性和供电可靠性。
