A Novel Method for Calculating the Three-phase Unbalanced Shunt Compensation Current in the Low Voltage Distribution Network

2021 ◽  
Author(s):  
Li Yin ◽  
Alian Chen
Keyword(s):  
Low Voltage ◽  
Distribution Network ◽  
Voltage Distribution ◽  
Three Phase ◽  
Novel Method ◽  
Shunt Compensation

scholarly journals Study on closed loop operation of low voltage distribution network under three-phase unbalanced condition

2018 ◽  
Vol 108 ◽  
pp. 052124
Author(s):  
Jing Zhang ◽  
Ming Jin ◽  
Yunguo Cheng ◽  
Dejun Wang ◽  
Kang Zhou ◽  
...  
Keyword(s):  
Closed Loop ◽  
Low Voltage ◽  
Distribution Network ◽  
Voltage Distribution ◽  
Three Phase

The Research of Unbalanced Three-Phase Adjustment in Distribution Network

2012 ◽  
Vol 263-266 ◽  
pp. 649-654
Author(s):  
Yan Wei Zheng ◽  
Zhong Hai Bai ◽  
Zhi Quan Feng
Keyword(s):  
Power Quality ◽  
Single Phase ◽  
Low Voltage ◽  
Distribution Network ◽  
Voltage Distribution ◽  
Phase Adjustment ◽  
Adjustment Strategy ◽  
Three Phase ◽  
Network Losses

To balance three-phase loads in distribution network with abundant of single-phase loads, the idea of three-phase adjustment and wiring method is proposed in this paper. Three-phase adjustment controller is designed, and the least load adjustment strategy is proposed, which can adjust the three-phase load to roughly balance automatically. The system can solve the serious three-phase unbalance problem of the lines with single-phase load, which may instead of capacitive compensation in low voltage distribution network. It can improve power quality and reduce network losses.

A Novel Method of Phase Identification in Low Voltage Distribution Network

2020 ◽  
Author(s):  
Zhidan Zhang ◽  
Haiguo Tang ◽  
Jiran Zhu ◽  
Di Zhang ◽  
Hua Leng ◽  
...  
Keyword(s):  
Low Voltage ◽  
Distribution Network ◽  
Phase Identification ◽  
Voltage Distribution ◽  
Novel Method

A Novel Method for Seamless Closed-Loop Load Transfer of Low Voltage Distribution Network

2021 ◽  
Author(s):  
Junlin Li ◽  
Xiaocong Wang ◽  
Cong Xie ◽  
Jie Han ◽  
Chengxiong Mao ◽  
...  
Keyword(s):  
Closed Loop ◽  
Load Transfer ◽  
Low Voltage ◽  
Distribution Network ◽  
Voltage Distribution ◽  
Novel Method

scholarly journals Three-Phase State Estimation of a Low-Voltage Distribution Network with Kalman Filter

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7421
Author(s):  
Fabio Napolitano ◽  
Juan Diego Rios Penaloza ◽  
Fabio Tossani ◽  
Alberto Borghetti ◽  
Carlo Alberto Nucci
Keyword(s):  
Kalman Filter ◽  
State Estimation ◽  
Phase State ◽  
Low Voltage ◽  
Distribution Network ◽  
Estimation Algorithm ◽  
The State ◽  
Voltage Distribution ◽  
Smart Meters ◽  
Three Phase

The state estimation of distribution networks has long been considered a challenging task for the reduced availability of real-time measures with respect to the transmission network case. This issue is expected to be improved by the deployment of modern smart meters that can be polled at relatively short time intervals. On the other hand, the management of the information coming from many heterogeneous meters still poses major issues. If low-voltage distribution systems are of interest, a three-phase formulation should be employed for the state estimation due to the typical load imbalance. Moreover, smart meter data may not be perfectly synchronized. This paper presents the implementation of a three-phase state estimation algorithm of a real portion of a low-voltage distribution network with distributed generation equipped with smart meters. The paper compares the typical state estimation algorithm that implements the weighted least squares method with an algorithm based on an iterated Kalman filter. The influence of nonsynchronicity of measurements and of delays in communication and processing is analyzed for both approaches.

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