The situation and trends of feeder automation in China

Ling, Wanshui; Liu, Dong; DeXiang, Yang; Sun, Chen

doi:10.1016/j.rser.2015.04.110

Cited by 20 publications

(9 citation statements)

References 8 publications

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“…Five DFIGs connect to the DN through RMUs at different positions. The secondary system is configured as a typical intelligent distributed FA independent from the overall information from the master stations or slave stations, and exchanges fault information by peer-to-peer communication between intelligent electronic devices (IEDs), to realize fast isolation of feeder faults and service restoration [21][22][23]. The communication network supports optical fiber Ethernet structures according to IEC 61850, while the IEDs at the substations and the RMUs communicate with each other through the core switchers.…”

Section: System Under Studymentioning

confidence: 99%

A Doubly-Fed Induction Generator Adaptive Control Strategy and Coordination Technology Compatible with Feeder Automation

Tian

Hao

2019

Energies

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The extensive connection of distributed generation (DG) with the distribution network (DN) is one of the core features of a smart grid, but in case of a large number, it may result in problems concerning the DN-DG compatibility during fault isolation and service restoration, for which no efficient and economic solutions have been developed. This paper proposes a doubly-fed induction generator (DFIG) adaptive control strategy (ACS) and a coordination technology to be compatible with the typical feeder automation (FA) protection logics in the ring distribution system. First of all, an ACS simulating the inertia/damping characteristics and excitation principles of synchronous generators is developed to achieve seamless switching between DFIG grid-connection/island modes, and make distant synchronization possible. Next, a technology coordinating the DFIG islands controlled by ACS and the remote tie-switches based on local inspection of synchronization conditions for closing is developed to achieve the safety grid-connection of DFIG islands in the absence of DN-DG communication. At the last, a detailed simulation scenario with a ring DN accessed by five DFIGs is used to validate the effectiveness of ACS and coordination technology compatible with FA in various faults scenes.

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Section: System Under Studymentioning

confidence: 99%

A Doubly-Fed Induction Generator Adaptive Control Strategy and Coordination Technology Compatible with Feeder Automation

Tian

Hao

2019

Energies

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“…A megawatt DFIG connects to the DN through RMU3. The secondary system is configured as a typical intelligent distributed FA independent from the overall information from the master stations or slave stations, and exchanges fault information by peer-to-peer communication through smart terminal units (STUs), to realize fast location, the isolation of feeder faults, and service restoration [28][29][30]. The communication network supports optical fiber Ethernet structures according to IEC 61850, while the STUs at the substations and the RMUs communicate with each other through GOOSE, which is a fast and reliable message communication mechanism [31,32].…”

Section: System Under Studymentioning

confidence: 99%

Doubly-Fed Induction Generator Coordination Control Strategy Compatible with Feeder Automation

Tian

Hao

2019

Electronics

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To solve the problem of incompatibility and mutual repulsion between a distribution network (DN) and distributed generation (DG), this paper first analyzes the conflicts between current feeder automation (FA) and doubly-fed induction generation (DFIG). Then, a DFIG coordination control strategy compatible with FA is proposed to cause the DFIG operating continuously during fault isolation and power supply recovery. The strategy consists of three aspects: (1) a DFIG islanding active synchronization control technology to support islanding and distant presynchronization control; (2) DFIG senses the status of circuit breakers/tie-switch through generic object oriented substation event (GOOSE) messages to achieve rapid switch of control modes and distant synchronization; (3) tie-switch senses the status of DFIG through GOOSE messages for closing. Finally, the effectiveness of the strategy is validated by multiple sound and detailed time-domain simulation cases. This study indicates future possible development trends and provides a simple and effective strategy for researches in the field of smart grid DN–DG compatibility.

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“…For distribution networks, feeder automation is an important means to improve the level of fault processing for distribution lines [1,2]. At present, a variety of feeder automation modes have been formed, including simple type based on fault indicator [3], local type based on the coordination between reclosers and sectionaliser or feeder terminal units (FTUs), the typical is voltage-time type [4,5], intelligent distribution type based on peer to peer communication [6], centralized type based on master station [7]. The above modes are designed for large current fault.…”

Section: Introductionmentioning

confidence: 99%

A quick fault location and isolation method for distribution network based on adaptive reclosing

Zhang

Chang

Zhang

et al. 2021

IET Generation Trans & Dist

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Feeder automation is important to improve the reliability of power supply for distribution network. Existing voltage-time feeder automation scheme exists the problems of long fault processing time and the upstream switches of the fault point need to tolerate fault current twice and the upstream sections need to experience two short time power outage. In this paper, a quick fault location and isolation method for distribution network based on adaptive reclosing is proposed. Three key technologies of the strategy are introduced, including a phase segregated switch of the distribution network based on the permanent magnet operating structure, the phase selector based on transient current characteristics, and the temporary fault and permanent fault identification method based on the power frequency voltage characteristics. The proposed strategy can avoid the second impact on upstream switches and power-off of the upstream section in case of the permanent fault and can effectively shorten the fault processing time.

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The situation and trends of feeder automation in China

Cited by 20 publications

References 8 publications

A Doubly-Fed Induction Generator Adaptive Control Strategy and Coordination Technology Compatible with Feeder Automation

A Doubly-Fed Induction Generator Adaptive Control Strategy and Coordination Technology Compatible with Feeder Automation

Doubly-Fed Induction Generator Coordination Control Strategy Compatible with Feeder Automation

A quick fault location and isolation method for distribution network based on adaptive reclosing

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