Bi-switching Status Modeling Method for DC–DC Converters in CCM and DCM Operations
Bi-switching Status Modeling Method for DC–DC Converters in CCM and DCM Operations
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DOI：
10.1109/tpel.2016.2574894
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发表时间：
2017-03
影响因子：
6.7
通讯作者：
Junfeng Han;Bo Zhang;D. Qiu
中科院分区：
文献类型：
--
作者：
Junfeng Han;Bo Zhang;D. Qiu
本文提出了一种新的建模方法--双开关状态建模法（BSM），该方法利用逻辑语句和线性不等式对DC-DC变换器进行建模。与其他建模方法，如状态空间平均法和混合逻辑动态（MLD）方法相比，第一，BSM方法可以描述连续导通模式和不连续导通模式的DC-DC转换器的操作作为一个统一的双开关状态模型。第二，BSM方法比状态空间平均方法更精确，因为没有近似假设。第三，BSM方法中的工况约束可以简化为一个统一的不等式，这意味着BSM方法得到的模型比MLD方法得到的模型更简洁。仿真和Buck变换器的实验结果验证了该方法的有效性。
By the logical statements and linear inequalities, a new modeling method named bi-switching status modeling (BSM) method is presented to model the dc-dc converters in this paper. Compared with other modeling methods, such as the state-space averaging method and the mixed logical dynamical (MLD) method, first, the BSM method can describe continuous conduction mode and discontinuous conduction mode operations of the dc-dc converters as a unified bi-switching status model. Second, the BSM method is more precise than the state-space averaging method because there is no approximate assumption. Third, the constrains of the operating modes in the BSM method can be simplified as a consolidated inequality, which means that the model obtained by the BSM method is more concise than that obtained by the MLD method. Simulation and available experiments of a buck converter verify the effectiveness of the proposed BSM method.