Distributed Approach for Solving Optimal Power Flow Problems in Three-phase Unbalanced Distribution Networks

Alsenani, Theyab R.; Paudyal, Sumit

doi:10.1109/aupec.2018.8757955

Cited by 3 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Especially for large scale grids, it can be challenging to solve the TOPF problem if it is formulated as a single optimization problem [28]. Therefore, simplification techniques are presented in literature, for example linearization ( [20,23,27]), relaxation and convexification techniques ( [21,[29][30][31]) and distributed [32] or stochastical approaches [19].…”

Section: Introductionmentioning

confidence: 99%

An Optimal Power Flow Algorithm for the Simulation of Energy Storage Systems in Unbalanced Three-Phase Distribution Grids

et al. 2021

View full text Add to dashboard Cite

An optimal power flow algorithm for unbalanced three-phase distribution grids is presented in this paper as a new tool for grid planning on low voltage level. As additional equipment like electric vehicles, heat pumps or solar power systems can sometimes cause unbalanced power flows, existing algorithms have to be adapted. In comparison to algorithms considering balanced power flows, the presented algorithm uses a complete model of a three-phase four-wire low voltage grid. Additionally, a constraint for the voltage unbalance in the grid is introduced. The algorithm can be used to optimize the operation of energy storage systems in unbalanced systems. The used grid model, constraints, objective function and solver are explained in detail. A validation of the algorithm using a commercial tool is done. Additionally, three exemplary optimizations are performed to show possible applications for this tool.

show abstract

Section: Introductionmentioning

confidence: 99%

An Optimal Power Flow Algorithm for the Simulation of Energy Storage Systems in Unbalanced Three-Phase Distribution Grids

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Literature (Gill et al, 2014) is based on the premise of ensuring the safe operation of the power grid, and aims at maximizing the photovoltaic power generation and its benefits to establish a dynamic optimal power flow model of an active power distribution network. Literature (Alsenani and Paudyal, 2018) aims to minimize the network loss by proposing an OPF model to solve the three-phase unbalance in the distribution network. However, the above literature ignores that the low-voltage distribution network is actually a three-phase four-wire system.…”

Section: Introductionmentioning

confidence: 99%

Three-Phase Four-Wire OPF-Based Collaborative Control of PV Inverter and ESS for Low-Voltage Distribution Networks With High Proportion PVs

Guan

et al. 2021

Front. Energy Res.

View full text Add to dashboard Cite

The use of photovoltaic reactive power and energy storage active power can solve the problems of voltage violation, network loss, and three-phase unbalance caused by photovoltaic connection to low-voltage distribution networks. However, the three-phase four-wire structure of the low-voltage distribution network brings difficulties to power flow calculation. In order to achieve photovoltaic utilization through optimal power flow, a photovoltaic-energy storage collaborative control method for low-voltage distribution networks based on the optimal power flow of a three-phase four-wire system is proposed. Considering the amplitude and phase angle of voltage and current, a three-phase four-wire node admittance matrix was used to establish the network topology of the low-voltage distribution network. Also, to minimize the network loss, the three-phase unbalance and voltage deviation. a multi-objective optimization model based on three-phase four-wire network topology was established considering the voltage constraints, reverse power flow constraints and neutral line current constraints. Through improving the node admittance matrix and model convexity, the complexity of solving the problem is reduced. The CPLEX algorithm package was used to solve the problem. Based on a 21-bus three-phase four-wire low-voltage distribution network, a 24-h multi-period simulation was undertaken to verify the feasibility and effectiveness of the proposed scheme.

show abstract

On the Impacts of Different Consistency Constraint Formulations for Distributed Optimal Power Flow

Harris

Alkhraijah

Huggins

et al. 2022

2022 IEEE Texas Power and Energy Conference (TPEC)

View full text Add to dashboard Cite

Distributed Approach for Solving Optimal Power Flow Problems in Three-phase Unbalanced Distribution Networks

Cited by 3 publications

References 14 publications

An Optimal Power Flow Algorithm for the Simulation of Energy Storage Systems in Unbalanced Three-Phase Distribution Grids

An Optimal Power Flow Algorithm for the Simulation of Energy Storage Systems in Unbalanced Three-Phase Distribution Grids

Three-Phase Four-Wire OPF-Based Collaborative Control of PV Inverter and ESS for Low-Voltage Distribution Networks With High Proportion PVs

On the Impacts of Different Consistency Constraint Formulations for Distributed Optimal Power Flow

Contact Info

Product

Resources

About