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首页> 外文会议>2013 8th International Conference-Workshop Compatibility and Power Electronics >Voltage and current-mode control for a multiphase bi-directional DC-DC converter
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Voltage and current-mode control for a multiphase bi-directional DC-DC converter

机译：多相双向DC-DC转换器的电压和电流模式控制

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摘要

This paper describes a completely digitally controlled bidirectional multi-phase dc-dc converter capable to operate in buck-and boost mode. All necessary tasks are performed within a FPGA circuitry. The voltage and current mode control is based on a voltage to frequency converter (u/f), also called voltage control oscillator (VCO), performing measurements of input/output-voltages and inductor-currents, respectively. This measurement principle uses digital counters (digital integrators) in order to obtain the average values of the output-voltages and inductor-currents. In analogue current-mode control the instantaneous current-value-measurement is used for the switching action. In case of using VCO measurement principle the digital equivalents of average values of input/output voltages and all measured currents will appear in the counter, which is the part of FPGA unit. All other tasks, like control algorithm and pulse width modulation, were also implemented within the FPGA. This approach enabled programmability and configurability of the control tasks. The proposed approach was verified experimentally.
机译：本文介绍了一种能够在降压和升压模式下运行的完全数字控制的双向多相dc-dc转换器。所有必需的任务都在FPGA电路内执行。电压和电流模式控制基于电压至频率转换器（u / f），也称为电压控制振荡器（VCO），分别执行输入/输出电压和电感器电流的测量。此测量原理使用数字计数器（数字积分器）以获得输出电压和电感器电流的平均值。在模拟电流模式控制中，瞬时电流值测量用于开关动作。如果使用VCO测量原理，则输入/输出电压平均值和所有测量电流的数字等效值将出现在计数器中，这是FPGA单元的一部分。所有其他任务，例如控制算法和脉冲宽度调制，也都在FPGA内实现。这种方法实现了控制任务的可编程性和可配置性。该方法已通过实验验证。

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