Steady-State Power Flow Model of Energy Router Embedded AC Network and Its Application in Optimizing Power System Operation

2018 ◽  
Vol 9 (5) ◽  
pp. 4828-4837 ◽  
Author(s):  
Jianqiang Miao ◽  
Ning Zhang ◽  
Chongqing Kang ◽  
Jianxiao Wang ◽  
Yi Wang ◽  
...  
Keyword(s):  
Steady State ◽  
Power System ◽  
Power Flow ◽  
Flow Model ◽  
State Power ◽  
System Operation ◽  
Power System Operation

Decentralized AC power flow for real-time multi-TSO power system operation

2010 ◽  
Author(s):  
Mauricio Granada E ◽  
Marcos J Rider ◽  
J R S Mantovani ◽  
M Shahidehpour
Keyword(s):  
Power System ◽  
Real Time ◽  
Power Flow ◽  
System Operation ◽  
Power System Operation ◽  
Ac Power

scholarly journals Comparative Performance of Multi-Period ACOPF and Multi-Period DCOPF Under High Integration of Wind Power

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4540
Author(s):  
Diego Larrahondo ◽  
Ricardo Moreno ◽  
Harold R. Chamorro ◽  
Francisco Gonzalez-Longatt
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Reactive Power ◽  
Complete Solution ◽  
System Operation ◽  
Comparative Performance ◽  
Power System Operation ◽  
Optimal Power

Today, the power system operation represents a challenge given the security and reliability requirements. Mathematical models are used to represent and solve operational and planning issues related with electric systems. Specifically, the AC optimal power flow (ACOPF) and the DC optimal power flow (DCOPF) are tools used for operational and planning purposes. The DCOPF versions correspond to lineal versions of the ACOPF. This is due to the fact that the power flow solution is often hard to obtain with the ACOPF considering all constraints. However, the simplifications use only active power without considering reactive power, voltage values and losses on transmission lines, which are crucial factors for power system operation, potentially leading to inaccurate results. This paper develops a detailed formulation for both DCOPF and ACOPF with multiple generation sources to provide a 24-h dispatching in order to compare the differences between the solutions with different scenarios under high penetration of wind power. The results indicate the DCOPF inaccuracies with respect to the complete solution provided by the ACOPF.

scholarly journals Steady-State Power Flow Analysis of Cold-Thermal-Electric Integrated Energy System Based on Unified Power Flow Model

Energies ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 4455
Author(s):  
Qu ◽  
Ouyang ◽  
Yuan ◽  
Zeng
Keyword(s):  
Steady State ◽  
Water Supply ◽  
Power Flow ◽  
Flow Model ◽  
Flow Analysis ◽  
State Power ◽  
Energy System ◽  
Optimal Operation ◽  
Tight Coupling ◽  
Integrated Energy System

The integrated energy system includes various energy forms, complex operation modes and tight coupling links, which bring challenges to its steady-state modeling and steady-state power flow calculation. In order to study the steady-state characteristics of the integrated energy system, the topological structure of the cold-thermal-electric integrated energy system is given firstly. Then, the steady-state model of the power subsystem, the thermal subsystem, the cold subsystem and the distributed energy station are established, the unified power flow model is established, and the Newton Raphson algorithm is used to solve the unified power flow model. Finally, the influence of the key technical parameters on the steady-state power flow of the integrated energy system is analyzed. Research results show that the photovoltaic power generation plays a supporting role in the voltage of each bus; with the increase of electric load power, the unit value of bus voltage decreases continuously; the water supply temperature of the source node has a greater impact on the steady-state flow in the pipeline and the water supply temperature of each node; the pipeline length of the heat network has a greater impact on the end temperature of the pipeline, the water supply temperature, and the return water temperature of each node. The analysis results can support the planning, design, and optimal operation of the integrated energy system.

Sign in / Sign up

Export Citation Format

Share Document