Backup Protection for Tie Lines in a Double-Petal-mode Distribution Network

Kong, Jingkai; Li, Yuejia; Yao, Wujiapin; Zhao, Yi; Zhou, Jiaxing; Tang, Zheng

doi:10.1109/iceemt52412.2021.9602456

Cited by 2 publications

(2 citation statements)

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“…The contact line of a "petal" distribution network starts from the substation and passes through a number of switching stations to form a distribution network similar to the shape of a flower petal; in normal operation mode, power is supplied by multiple sources in combined ring operation mode [1], evidently improving the reliability of the power supply compared with a radiation-type distribution network. However, given the unsynchronized line construction and load development, a "petal"-type distribution network exhibits the characteristics of uncontrollable power size and direction [2]. Therefore, an active alternating current (AC) interconnection device is urgently required to control power effectively at the loop closure point and ensure the safe operation of the loop closure, significantly improving the power supply reliability of a distribution network [3].…”

Section: Introductionmentioning

confidence: 99%

An accurate power control strategy for electromagnetic rotary power controllers

Yan

Shao

Jia

et al. 2023

Preprint

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With the rapid development of active distribution networks, the “petal”-type distribution network has become the mainstream power supply structure. To ensure the safe and reliable power supply of a distribution system, power control methods for active distribution networks should be further studied. An electromagnetic rotary power flow controller (RPFC) is a feasible solution for active distribution network power control. However, when testing the effectiveness of the PQ decoupled control method for RPFC based on instantaneous reactive power theory, difficulties were encountered with the synchronous control of the rotor position angle of two rotating-phase transformers, and the accuracy of power control was unsatisfactory. Given this condition, PQ control is improved in three ways. First, the system periodic oscillation problem is solved via variable speed control. Second, the servo motor–rotary phase-shifting transformer synchronous rotation scheme is designed, reducing power control error and improving stability. The overshoot phenomenon in power control is improved using the variable domain fuzzy proportional–integral adaptive method. Experimental results show that the proposed advanced control scheme exhibits good dynamic and static performance in power control scenarios and achieves effective improvement of RPFC.

show abstract

Section: Introductionmentioning

confidence: 99%

An accurate power control strategy for electromagnetic rotary power controllers

Yan

Shao

Jia

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The contact line of a "petal" distribution network starts from the substation and passes through several switching stations to form a distribution network with a shape similar to that of a flower petal; in normal operation mode, power is supplied by multiple sources in combined ring operation mode [1], evidently improving the reliability of the power supply compared with a radiation-type distribution network. However, given the unsynchronized line construction and load development, a "petal"-type distribution network exhibits the characteristics of uncontrollable power size and direction [2]. Therefore, an active alternating current (AC) interconnection device is urgently required to control power effectively at the loop closure point and ensure the safe operation of the loop closure, significantly improving the power supply reliability of a distribution network [3].…”

Section: Introductionmentioning

confidence: 99%

An accurate power control strategy for electromagnetic rotary power controllers

Yan

Shao

Jia

et al. 2023

IET Generation Trans & Dist

View full text Add to dashboard Cite

With the rapid development of active distribution networks, the “petal”‐type distribution network has become the mainstream power supply structure. Power control methods for active distribution networks should be further studied to ensure the safe and reliable power supply of a distribution system. An electromagnetic rotary power flow controller (RPFC) is a feasible solution for controlling power in active distribution networks. However, when testing the effectiveness of the PQ decoupled control method for RPFC based on instantaneous reactive power theory, difficulties were encountered with the synchronous control of the rotor position angle of two rotating‐phase transformers, and the accuracy of power control was unsatisfactory. Given this condition, PQ control is improved in three ways. First, the system's periodic oscillation problem is solved via variable speed control. Second, the servo motor‐rotary phase‐shifting transformer synchronous rotation scheme, which reduces power control error and improves stability, is designed. Third, the overshoot phenomenon in power control is improved using the variable‐domain fuzzy proportional‐integral adaptive method. Experimental results show that the proposed advanced control scheme exhibits good dynamic and static performance in power control scenarios and achieves effective improvement in RPFC.

show abstract

Backup Protection for Tie Lines in a Double-Petal-mode Distribution Network

Cited by 2 publications

References 0 publications

An accurate power control strategy for electromagnetic rotary power controllers

An accurate power control strategy for electromagnetic rotary power controllers

An accurate power control strategy for electromagnetic rotary power controllers

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