A multi-terminal power flow control method for next-generation DC power network

Takahashi, Y.; Natori, Kenji; Sato, Yukihiko

doi:10.1109/ecce.2015.7310533

Cited by 15 publications

(20 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3. m-terminal topology for PFC proposed in [7] voltage is properly controlled but power flow control is not achieved. [7] proposed another topology (Fig.…”

Section: Grid2mentioning

confidence: 99%

See 1 more Smart Citation

Flatness-Based Control of an m-Branch Power Flow Controller for Meshed DC Microgrids

Lin-Shi

Simon

Trégouët

et al. 2021

2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)

View full text Add to dashboard Cite

The Power flow controller (PFC) is a key element for meshed DC micro-grids. Indeed, this device is able to balance the electric power between the lines of a node in the mesh, which is required to maintain the stability and prevent the overloading of some lines. This paper presents a differential flatness based nonlinear control for this device. The chosen converter topology is modelled by a modular state-space nonlinear system. The primary control objective is to achieve power control on the line connected to each terminal of the PFC despite the uncertainty of the grid. The considered PFC is equipped with a reservoir capacitor. Voltage regulation of this capacitor is also addressed, as a secondary control objective. Simulation results for a 3terminal PFC show the effectiveness of the proposed control. The extension to a 5-terminal PFC demonstrates that the control for an m-terminal PFC is easily implemented thanks to the modular structure of the proposed control scheme.

show abstract

“…3. m-terminal topology for PFC proposed in [7] voltage is properly controlled but power flow control is not achieved. [7] proposed another topology (Fig.…”

Section: Grid2mentioning

confidence: 99%

“…m-terminal topology for PFC proposed in [7] voltage is properly controlled but power flow control is not achieved. [7] proposed another topology (Fig. 3) consisting of a modified split-pi with m half-bridge legs connected to the same reservoir (or link) capacitor C R .…”

Section: Grid2mentioning

confidence: 99%

Flatness-Based Control of an m-Branch Power Flow Controller for Meshed DC Microgrids

Lin-Shi

Simon

Trégouët

et al. 2021

2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)

View full text Add to dashboard Cite

show abstract

“…Specifications of DC/DC converter Table 3. Specifications of MOSFETs connected to the inter-stage capacitor C link (9) as described in section 2.2. For fair comparison between BPFC and F-BPFC in this experiment, DC power supply is directly connected to C link as the compensation node in BPFC.…”

Section: Experiments Setup and Proceduresmentioning

confidence: 99%

“…Then, the change of V link possibly prevents proper operation of the power flow control. Therefore, V link should be kept constant by using any compensation nodes with two-quadrant choppers (9) .…”

Section: Circuit Implementationmentioning

confidence: 99%

See 1 more Smart Citation

High-Efficiency Floating Bidirectional Power Flow Controller for Next-Generation DC Power Network

et al. 2018

Self Cite

View full text Add to dashboard Cite

To realize flexible power flow control for DC power networks, we have proposed a bidirectional power flow controller (BPFC) based on a bidirectional buck-boost converter. It is possible to control the power flow by intentionally introducing additional voltage difference between two terminals. However, we have not investigated the efficiency of BPFC for power flow control in detail so far (in previous papers). Because many power converters are expected to be installed in future DC power networks, efficiency investigation is vital. In this paper, we first reveal the energy efficiency of BPFC and study ways to improve the efficiency. Then, we propose a novel structure of the BPFC, which drastically improves its efficiency. We call the proposed structure floating bidirectional power flow controller (F-BPFC). The efficiency and characteristics of the F-BPFC are experimentally compared with those of the BPFC and its superiority is clarified in this paper.

show abstract