Two-Phase Modulated Digital Control for Three-Phase Bidirectional Inverter With Wide Inductance Variation

被引：48
|
作者：
Wu, Tsai-Fu [1 ]
Chang, Chih-Hao [1 ]
Lin, Li-Chiun [1 ]
Chang, Yuan-Chih [1 ]
Chang, Yung-Ruei [2 ]
机构：
[1] Natl Chung Cheng Univ, Dept Elect Engn, Elegant Power Applicat Res Ctr, Chiayi 62102, Taiwan
[2] Atom Energy Council, Div Engn, Inst Nucl Energy Res, Tao Yuan 32546, Taiwan
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2013年 / 28卷 / 04期
关键词：
Bidirectional inverter; dc distribution system; digital control; grid connection; power factor correction (PFC); two-phase modulation (TPM); wide inductance variation; POWER CONVERTERS; DESIGN;
D O I：
10.1109/TPEL.2012.2198076
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents two-phase modulated digital control for a three-phase bidirectional inverter with wide inductance variation in dc distribution systems. The bidirectional inverter can fulfill both grid connection and rectification with power factor correction. With the proposed control, the inverter can track its sinusoidal reference currents, and it is allowed to have wide inductance variation, reducing core size significantly. The control laws based on space-vector pulsewidth modulation are first derived with either an accurate approach or an approximated one, and the gate signals were then derived based on two-phase modulation for lower switching loss and switching noise spectra. Determination of control parameters and stability analysis are also presented. In the design and implementation, the inductances corresponding to various inductor currents were measured and tabulated into a single-chip microcontroller for tuning loop gain cycle by cycle, ensuring system stability. Measured results from a 10 kVA 3 phi bidirectional inverter have been presented to confirm the feasibility of the discussed control approaches.
引用
收藏
页码：1598 / 1607
页数：10
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