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首页> 外文期刊>IEEE transactions on industrial informatics >Modeling, Digital Control, and Implementation of a Three-Phase Four-Wire Power Converter Used as a Power Redistribution Device
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Modeling, Digital Control, and Implementation of a Three-Phase Four-Wire Power Converter Used as a Power Redistribution Device

机译：用作电源分配装置的三相四线电源转换器的建模，数字控制和实现

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摘要

This paper presents a power electronic converter used to redistribute the power among the phases in unbalanced power systems, which is supposed to be designed based on the involved degree of unbalance. A bidirectional converter is chosen for this purpose, whose modeling is presented in the dq0 system. This solution can be considered as part of a unified control system, where conventional active power filters may be solely responsible for compensating harmonics and/or the tuning of passive filters becomes easier, with consequent reduction in involved costs in a decentralized approach. The adopted control strategy is implemented in digital signal processor TMS320F2812, while experimental results obtained from an experimental prototype rated at 17.86 kVA are properly discussed considering that the converter is placed at the secondary side of a transformer supplying three distinct single-phase loads. It is effectively shown that the converter is able to balance the currents in the transformer phases, thus leading to the suppression of the neutral current.
机译：本文提出了一种功率电子转换器，用于在不平衡电力系统中的各相之间重新分配功率，该功率电子转换器应该根据所涉及的不平衡程度进行设计。为此选择了一个双向转换器，其建模在dq0系统中给出。该解决方案可被视为统一控制系统的一部分，在该系统中，传统的有源功率滤波器可能仅负责补偿谐波和/或无源滤波器的调谐变得更加容易，从而降低了分散方法的相关成本。采用的控制策略是在数字信号处理器TMS320F2812中实现的，而考虑到转换器位于提供三个不同单相负载的变压器的次级侧，则正确讨论了从额定为17.86kVA的实验原型获得的实验结果。有效地表明，转换器能够平衡变压器相中的电流，从而抑制了中性线电流。

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