Minimizing Converter Requirements of Inductive Power Transfer Systems With Constant Voltage Load and Variable Coupling Conditions
Minimizing Converter Requirements of Inductive Power Transfer Systems With Constant Voltage Load and Variable Coupling Conditions
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DOI：
10.1109/tie.2016.2582459
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发表时间：
2016-06
影响因子：
7.7
通讯作者：
G. Guidi;J. Suul
中科院分区：
文献类型：
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作者：
G. Guidi;J. Suul
本文提出了一种综合设计和控制方法的感应电能传输系统，消除了需要过额定的转换器在应用中的耦合条件在操作过程中变化显着。该方法是为串联串联补偿系统，只有一个有源电力电子变换器和二极管整流器直接连接到一个恒定电压直流母线或电池。通过对系统的频率特性进行整形，最大限度地降低了最坏情况下的伏安要求。耦合变化期间的额定功率流通过恒定电压下的频率控制来实现。给出了在整个耦合范围内实现接近单位功率因数、恒定电流幅值和最小开关损耗的设计准则。由于系统配置简单，仅需要一个具有最小额定值的有源转换器，因此该方法被认为特别适合于大功率应用。通过理论分析和时域仿真，证明了所研究的系统配置的属性。通过小型实验室样机的实验测量，验证了该方法的有效性和可行性。
This paper proposes a combined design and control method for inductive power transfer systems that eliminates the need for overrating the converters in applications where the coupling conditions vary significantly during operation. The method is developed for series-series compensated systems with only one active power electronic converter and a diode rectifier connected directly to a constant voltage dc bus or a battery. The worst-case voltampere requirements are minimized by shaping the frequency characteristics of the system. Rated power flow during coupling variations is achieved by frequency control at constant voltage. Design guidelines are given to achieve close to unity power factor, constant current amplitude, and minimum switching losses for the converter over the whole coupling range. Due to the simple system configuration requiring only one active converter with minimum rating, the method is deemed particularly suited for high-power applications. The properties of the investigated system configuration are demonstrated by theoretical analysis and time-domain simulations. Effectiveness and feasibility of the proposed method are also validated by experimental measurements from a small-scale laboratory prototype.