Noise mitigation and delay compensation in high frequency dual current programmed mode control
Noise mitigation and delay compensation in high frequency dual current programmed mode control
复制标题
高频双电流编程模式控制中的噪声抑制和延迟补偿
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
D. Costinett
中科院分区：
文献类型：
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作者：
Kamal Sabi;D. Costinett
为了克服高频电力电子器件中开关损耗增加的问题，在全桥逆变器和整流器拓扑中通常使用基于控制的调制技术（例如边界电流模式（BEM））来保证零电压开关（ZVS）。传统上，为了实现PWM调制，使用电流编程模式（CPM）控制和基于模型的技术的组合。前者对噪声和感测延迟非常敏感，而后者则受到建模误差的影响。在这项工作中，双电流编程模式（DCPM）的控制电路的设计和实现的可编程操作。所提出的控制网络实现了更好的抗干扰性和低传播延迟在高频下，同时调节峰谷电流在每个周期。使用GaN基半桥逆变器原型实验证明了这种控制方案的操作。
To overcome the increased switching losses in high frequency power electronics, control-based modulation techniques such as boundary current mode (BCM) are commonly used in full bridge inverter and rectifier topologies to guarantee zero voltage switching (ZVS). Traditionally, in order to implement BCM modulation, a combination of current programmed mode (CPM) control and model-based techniques are used. The former is highly susceptible to noise and sensing delay, while the latter is subject to modeling error. In this work, a dual-current programmed mode (DCPM) control circuit for BCM operation is designed and implemented. The proposed control network achieves better noise immunity and low propagation delay at high frequency while regulating peak and valley currents in each period. The operation of this control scheme is demonstrated experimentally using a GaN-based half bridge inverter prototype.