scholarly journals Steady-state model of multi-port electric energy router and power flow analysis method of AC/DC hybrid system considering control strategies

2019 ◽  
Vol 2019 (16) ◽  
pp. 2794-2799 ◽  
Author(s):  
Yu Shen ◽  
Fengju Zhu ◽  
Chunpeng Zhang ◽  
Weiqian Cai ◽  
Liqiang Yuan ◽  
...  
Keyword(s):  
Steady State ◽  
Hybrid System ◽  
Power Flow ◽  
Control Strategies ◽  
Flow Analysis ◽  
Electric Energy ◽  
State Model ◽  
Analysis Method ◽  
Power Flow Analysis ◽  
Steady State Model

Steady-State Model of Grid-Connected Photovoltaic Generation for Power Flow Analysis

2018 ◽  
Vol 33 (5) ◽  
pp. 5727-5737 ◽  
Author(s):  
Rafael Tapia Juarez ◽  
Claudio Ruben Fuerte-Esquivel ◽  
Elisa Espinosa-Juarez ◽  
Uriel Sandoval
Keyword(s):  
Steady State ◽  
Power Flow ◽  
Flow Analysis ◽  
State Model ◽  
Photovoltaic Generation ◽  
Power Flow Analysis ◽  
Steady State Model

scholarly journals Impedance Matching-Based Power Flow Analysis for UPQC in Three-Phase Four-Wire Systems

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2702
Author(s):  
Xiaojun Zhao ◽  
Xiuhui Chai ◽  
Xiaoqiang Guo ◽  
Ahmad Waseem ◽  
Xiaohuan Wang ◽  
...  
Keyword(s):  
Power Flow ◽  
Control Strategies ◽  
Impedance Matching ◽  
Flow Analysis ◽  
Point Of View ◽  
Impedance Model ◽  
Power Flow Analysis ◽  
Three Phase ◽  
System Node ◽  
Power Quality Conditioner

Different from the extant power flow analysis methods, this paper discusses the power flows for the unified power quality conditioner (UPQC) in three-phase four-wire systems from the point of view of impedance matching. To this end, combined with the designed control strategies, the establishing method of the UPQC impedance model is presented, and on this basis, the UPQC system can be equivalent to an adjustable impedance model. After that, a concept of impedance matching is introduced into this impedance model to study the operation principle for the UPQC system, i.e., how the system changes its operation states and power flow under the grid voltage variations through discussing the matching relationships among node impedances. In this way, the nodes of the series and parallel converter are matched into two sets of impedances in opposite directions, which mean that one converter operates in rectifier state to draw the energy and the other one operates in inverter state to transmit the energy. Consequently, no matter what grid voltages change, the system node impedances are dynamically matched to ensure that output equivalent impedances are always equal to load impedances, so as to realize impedance and power balances of the UPQC system. Finally, the correctness of the impedance matching-based power flow analysis is validated by the experimental results.

scholarly journals On-line data splicing power flow analysis method based on sensitivity

2021 ◽  
Vol 7 ◽  
pp. 326-333
Author(s):  
Jun Lu ◽  
Lu Lu Zhang ◽  
Dong Yu Shi ◽  
Tie Li ◽  
Jun Ci Tang ◽  
...  
Keyword(s):  
Power Flow ◽  
Flow Analysis ◽  
Analysis Method ◽  
Power Flow Analysis ◽  
On Line

Steady-state model for the three-leg shunt-series ac-link power flow controller

2015 ◽  
Vol 9 (16) ◽  
pp. 2534-2543 ◽  
Author(s):  
Manuel Barragán-Villarejo ◽  
Alejandro Marano-Marcolini ◽  
Jose Maria Maza-Ortega ◽  
Antonio Gómez-Expósito
Keyword(s):  
Steady State ◽  
Power Flow ◽  
State Model ◽  
Steady State Model ◽  
Flow Controller ◽  
Power Flow Controller ◽  
Shunt Series
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