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| The implementation of Type-III digital compensator in dual-Buck inverter |
| Lin Zhenhuang, Mao Xingkui |
| College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350116 |
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Abstract Switching power supply loop design, compensation and parameter tuning have always been difficult research points. A typical double Buck inverter is composed of two Buck circuits. This paper first analyzes the single Buck circuit system model considering the parasitic parameters under continuous current control mode (CCM). The use of classical PI controller through the Bode plot analysis can not reduce the system static error and improve the dynamic response capability. A Type-III digital compensator based on zero-pole compensation is designed, and a bilinear transform method is used to realize digital conversion. The mathematic model was set up under MathCad software for theoretical analysis, and the rationality of the experimental prototype validation control model and loop compensation parameters was made. The results show that the double Buck inverter considering the parasitic parameters under CCM adopts the established Type-III compensator and has good anti-load disturbance performance.
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Received: 01 July 2018
Published: 18 February 2019
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| Cite this article: |
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Lin Zhenhuang,Mao Xingkui. The implementation of Type-III digital compensator in dual-Buck inverter[J]. Electrical Engineering, 2019, 20(2): 7-11.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2019/V20/I2/7
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[1] 冯全源, 严宏举. 一种变参数比例积分控制BUCK变换器设计[J]. 电机与控制学报, 2016, 20(5): 68-76.
[2] 赵涛, 王吉虎, 黄家才, 等. 基于PI和重复控制三相并网逆变器的设计[J]. 电力电子技术, 2015, 49(1): 20-22.
[3] 念平, 林琼斌. 双Buck半桥逆变器混合PWM控制策略[J]. 电气技术, 2017, 18(3): 54-58.
[4] 严宏举. BUCK变换器的环路建模与研究[D]. 成都:西南交通大学, 2016.
[5] 翁传辉, 蔡逢煌. 移相全桥电路的小信号建模与仿真[J]. 电气技术, 2016, 17(4): 63-66.
[6] 张卫平. 开关变换器的建模与控制[M]. 北京: 中国电力出版社, 2006.
[7] 马海啸, 陈凯, 龚春英. 双Buck逆变器的建模与优化设计[J]. 电工技术学报, 2012(8): 35-41.
[8] 陈轶涵, 韦徵, 龚春英. 平均电流控制型移相全桥DC-DC变换器输出阻抗及控制环路优化设计[J]. 电工技术学报, 2013, 28(4): 43-49. |
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2019, Vol. 20 
