A Novel Neutral Electromagnetic Hybrid Flexible Grounding Method in Distribution Networks

Wang, Peng; Chen, Baichao; Tian, Cuihua; Sun, Bin; Zhou, Min; Yuan, Jiaxin

doi:10.1109/tpwrd.2016.2526054

Cited by 87 publications

(26 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparing the dynamic waveforms with those presented in literature [22], it shows that the response time of the proposed ASD is greatly reduced from around 120 ms to less than 20 ms. This is mainly caused by the complicated control process and the FFT method used for reference current in the literature.…”

Section: Resultsmentioning

confidence: 74%

“…Recently, a hybrid flexible grounding system is proposed by B. Chen [22], which combines the magnetic control reactor (MCR) providing large-capacity reactive power and the active power compensator (APC) realizing full ground current compensation. Besides, the voltage control method used in this device does not need capacitive current detection, which decreases the response time and residual current level.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Principle and Control Design of Active Ground-Fault Arc Suppression Device for Full Compensation of Ground Current

Wang

Zhang

Yan

et al. 2017

IEEE Trans. Ind. Electron.

117

View full text Add to dashboard Cite

Traditional ground-fault arc suppression devices mainly deal with capacitive component of ground current and have weak effect on the active and harmonic ones, which limits the arc suppression performance. The capacitive current detection needed in them suffers from low accuracy and robustness. The commonly-used large-capacity reactive component may bring about overvoltage because of possible resonance with the distributed phase-to-ground capacitance. To solve these problems, an active ground-fault arc suppression device is presented. It employs a topology based on single-phase inverter to inject current into the neutral without any large-capacity reactors, and thus avoids the aforementioned overvoltage. It compensates all the active, reactive and harmonic components of the ground current to reliably extinguish the ground-fault arcs. A dual-loop voltage control method is proposed to realize arc suppression without capacitive current detection. Its time-based feature also brings the benefit of fast response on ground-fault arc suppression. The principle of full current compensation is analyzed, together with the controller design method of the proposed device. Experiment on a prototype was carried out to validate the effectiveness of the device.

show abstract

Section: Resultsmentioning

confidence: 74%

mentioning

confidence: 99%

Principle and Control Design of Active Ground-Fault Arc Suppression Device for Full Compensation of Ground Current

Wang

Zhang

Yan

et al. 2017

IEEE Trans. Ind. Electron.

117

View full text Add to dashboard Cite

show abstract

“…Additionally, the grounded electrified wire will threaten livestock and human-beings' safety, or ignite the shrubs, which may endanger public and personnel safety, causing serious social impacts and economic losses [2]. To constrain the SLG fault current, resonant grounded systems have been adopted in China and Europe [3][4], and the ability of total fault current elimination is emphasized in practice [5].…”

Section: Introductionmentioning

confidence: 99%

Principle of Flexible Ground-Fault Arc Suppression Device Based on Zero-Sequence Voltage Regulation

Fan

Yao

et al. 2021

IEEE Access

View full text Add to dashboard Cite

“…Definitely, there is a certain gap in the study of single-phase break fault in medium voltage distribution networks. And the intelligent multi-mode grounding, arc suppression coil with parallel resistance grounding and other modes are gradually applied to the distribution network [17][18][19], so that the neutral grounding mode may change during actual operation. The break fault protection methods under the specific neutral grounding mode are difficult to meet the requirements.…”

Section: Introductionmentioning

confidence: 99%

Fault protection method of single-phase break for distribution network considering the influence of neutral grounding modes

Xiao

Ouyang

Xiong

et al. 2020

Prot Control Mod Power Syst

View full text Add to dashboard Cite

With the rapid development of modern distribution network and the access of distributed generation, the network structure is becoming increasingly complex. Frequent single-phase break faults have seriously affected equipment and personal safety and stable operation of the power system. However, with the development and application of the composite neutral grounding modes, the protection of single-phase break fault is facing new challenges. This paper proposes a protection method of single-phase break fault for distribution network considering the influence of neutral grounding modes. The characteristics of neutral voltage and sequence current are analyzed under normal operation and single-phase break fault with different grounding modes. Following this, the protection criterion based on neutral voltage and sequence current variation is constructed. The protection method of singlephase break fault for distribution network is proposed, which is applicable for various neutral grounding modes. Theoretical analysis and simulation results show that the protection method is less affected by system asymmetry, fault location and load distribution. The method has higher sensitivity, reliability and adaptability.

show abstract

A Novel Neutral Electromagnetic Hybrid Flexible Grounding Method in Distribution Networks

Cited by 87 publications

References 14 publications

Principle and Control Design of Active Ground-Fault Arc Suppression Device for Full Compensation of Ground Current

Principle and Control Design of Active Ground-Fault Arc Suppression Device for Full Compensation of Ground Current

Principle of Flexible Ground-Fault Arc Suppression Device Based on Zero-Sequence Voltage Regulation

Fault protection method of single-phase break for distribution network considering the influence of neutral grounding modes

Contact Info

Product

Resources

About