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考虑宽负载变化的有源电容等效容值控制与损耗分析
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作者 杨明 朱国荣 +3 位作者 邓翔天 王菁 李存中 王浩然 《电源学报》 CSCD 北大核心 2020年第1期176-184,共9页
二端口有源电容是一种仅有2个引出端口而无需任何附加电气连接端子的有源电路。然而,基于传统控制方法的有源电容等效容值在理想情况下是无穷大的,这不适用于某些需要精确容值的无源电容应用场合。为此,提出了一种基于二端口有源电容的... 二端口有源电容是一种仅有2个引出端口而无需任何附加电气连接端子的有源电路。然而,基于传统控制方法的有源电容等效容值在理想情况下是无穷大的,这不适用于某些需要精确容值的无源电容应用场合。为此,提出了一种基于二端口有源电容的等效容值控制方法,该方法能根据不同的应用需求实现对有源电容的精准容值控制。首先,对有源电容的阻抗进行建模与分析;然后,通过基于单相整流器的仿真分析,将通过等效容值控制的有源电容与具有相同容值的无源电容进行对比,以验证控制精度;最后,通过与传统有源电容控制方式在功率损耗和动态响应速度方面进行对比,结果验证了所提出等效容值控制方法的有效性。 展开更多
关键词 容值控制 功率损耗 二端口 有源电容
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OPTIMAL PRICING, PRODUCTION, AND SALES POLICIES FOR NEW PRODUCT UNDER SUPPLY CONSTRAINT 被引量:3
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作者 YAN Xiaoming LIU Ke WANG Yong 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2014年第2期289-306,共18页
This paper considers a firm that sells a durable product with a given market potential.The purpose of the firm is to maximize its profit by determining how much capacity to install before the sales horizon, how many p... This paper considers a firm that sells a durable product with a given market potential.The purpose of the firm is to maximize its profit by determining how much capacity to install before the sales horizon, how many products to produce in accordance with the capacity, and how many products to sell by pricing. Appealing to Pontryagin maximum principle in control theory, the authors obtain the closed-forms of all optimal decisions the firm should make. Furthermore, the optimal production rate and optimal sales rate are both equal to the demand rate, which is caused by the optimal pricing policy during the whole horizon, and the optimal pricing path is increasing with the cost of installing a unit of capacity. Furthermore, numerical analysis reveals the visual impression of the relationship of the parameters. 展开更多
关键词 Capacity constraint INVENTORY new product pricing.
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