400Hz大功率航空地面电源单环控制

	400Hz大功率航空地面电源单环控制; Single-Loop Digital Control of High-Power 400 Hz Ground Power Unit for Airplanes
	李子欣
刊名	IEEE Transactions on Industrial Electronics
	2010
其他题名	Single-Loop Digital Control of High-Power 400 Hz Ground Power Unit for Airplanes
通讯作者	李子欣
中文摘要	In this paper, the influence of one-sample delay for sampling and computation in digital control on the bandwidth of the inner current loop of a 400-Hz ground power unit (GPU) is analyzed first. The results show that it is difficult and even impossible for high-power 400-Hz GPUs to maintain low total harmonic distortion content in the output voltage with the conventional proportional–integral-based double-loop control. To improve the performance, resonant controllers with parallel structure which are widely used in active power filters are applied to the single-loop control of the 400-Hz GPU. The parameter design criterion for the parallel resonant controllers is discussed in the discrete time domain. Meanwhile, adoption of proportional gain in the single-loop control is investigated. The results show that it can improve the performance little and may cause instability problems. Comparisons between different control methods for the 400-Hz GPU are also made, and the single-loop control method in this paper seems to be the most suitable one in terms of simplicity and performance. Experiments on a 16-b fixed-point DSP-controlled 90-kVA 400-Hz GPU prototype show satisfactory results of the single-loop method feeding linear/nonlinear and balanced/unbalanced loads.
学科主题	电力电子与电力传动
收录类别	1,4
公开日期	2010-09-29
附注	In this paper, the influence of one-sample delay for sampling and computation in digital control on the bandwidth of the inner current loop of a 400-Hz ground power unit (GPU) is analyzed first. The results show that it is difficult and even impossible for high-power 400-Hz GPUs to maintain low total harmonic distortion content in the output voltage with the conventional proportional–integral-based double-loop control. To improve the performance, resonant controllers with parallel structure which are widely used in active power filters are applied to the single-loop control of the 400-Hz GPU. The parameter design criterion for the parallel resonant controllers is discussed in the discrete time domain. Meanwhile, adoption of proportional gain in the single-loop control is investigated. The results show that it can improve the performance little and may cause instability problems. Comparisons between different control methods for the 400-Hz GPU are also made, and the single-loop control method in this paper seems to be the most suitable one in terms of simplicity and performance. Experiments on a 16-b fixed-point DSP-controlled 90-kVA 400-Hz GPU prototype show satisfactory results of the single-loop method feeding linear/nonlinear and balanced/unbalanced loads.
内容类型	期刊论文
源URL	[http://ir.iee.ac.cn/handle/311042/879]
专题	电工研究所_磁悬浮与直线驱动技术研究中心_磁悬浮与直线驱动技术研究中心_期刊论文
推荐引用方式 GB/T 7714	李子欣. 400Hz大功率航空地面电源单环控制, Single-Loop Digital Control of High-Power 400 Hz Ground Power Unit for Airplanes[J]. IEEE Transactions on Industrial Electronics,2010.
APA	李子欣.(2010).400Hz大功率航空地面电源单环控制.IEEE Transactions on Industrial Electronics.
MLA	李子欣."400Hz大功率航空地面电源单环控制".IEEE Transactions on Industrial Electronics (2010).