Multi-period stochastic security-constrained OPF considering the uncertainty sources of wind power, load demand and equipment unavailability

Sharifzadeh, Hossein; Amjady, Nima; Zareipour, Hamidreza

doi:10.1016/j.epsr.2017.01.011

Cited by 59 publications

(19 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various scenario approaches, 31 stochastic programming techniques, 32,33 and robust optimization methods 34 are available for OPF uncertainty modeling in the literature, which can be merged with the proposed ST-AC-OPF tool to model the uncertainty sources. For the sake of simplicity and better illustrating the underlying ideas of the proposed ST-AC-OPF model, the uncertainty sources (eg, the uncertainty of renewable Distributed Generation (DG) connected to STN) as well as contingencies are neglected in this research work.…”

Section: Assumptionsmentioning

confidence: 99%

“…For the sake of simplicity and better illustrating the underlying ideas of the proposed ST-AC-OPF model, the uncertainty sources (eg, the uncertainty of renewable Distributed Generation (DG) connected to STN) as well as contingencies are neglected in this research work. Various scenario approaches, 31 stochastic programming techniques, 32,33 and robust optimization methods 34 are available for OPF uncertainty modeling in the literature, which can be merged with the proposed ST-AC-OPF tool to model the uncertainty sources. In addition, contingencies can be included in the proposed ST-AC-OPF by considering contingency constraints.…”

Section: Assumptionsmentioning

confidence: 99%

See 1 more Smart Citation

A new AC OPF tool for sub‐transmission networks considering distribution switching actions and load‐transferring capability

Tavakkoli

Amjady

2019

Int Trans Electr Energ Syst

Self Cite

View full text Add to dashboard Cite

In practical power systems, in order to study the results of optimal power flow (OPF) for a sub‐transmission network (STN), the downstream primary distribution network is usually modeled as constant load. However, in practical distribution grids, the operators are constantly transferring load from one primary distribution feeder to another one because of, eg, congestion problems or maintenance plans. Considering distribution switching actions can improve the performance of sub‐transmission OPF tool that typically aims at reducing the operation cost of STN. This paper presents a new sub‐transmission Alternating Current (AC) OPF (ST‐AC‐OPF) considering load transferring (LT) between primary distribution feeders implemented through distribution maneuvers. The proposed OPF tool is tested on an illustrative practical example as well as on a real‐world Tehran STN. The numerical results show that the proposed model can obtain a more optimal operating point than conventional ST‐AC‐OPF in terms of the operation cost and load shedding.

show abstract

Section: Assumptionsmentioning

confidence: 99%

Section: Assumptionsmentioning

confidence: 99%

A new AC OPF tool for sub‐transmission networks considering distribution switching actions and load‐transferring capability

Tavakkoli

Amjady

2019

Int Trans Electr Energ Syst

Self Cite

View full text Add to dashboard Cite

show abstract

“…A weighting method is applied to systematically combine multiple predictive models in [20], which can reduce the prediction bias. References [21][22][23][24] deal with wind power uncertainty through scenario generation and reduction methods. The solution to the uncertainty of renewable energy output are relatively simple and quite limited.…”

Section: Introductionmentioning

confidence: 99%

Research on Economic Operation Strategy of CHP Microgrid Considering Renewable Energy Sources and Integrated Energy Demand Response

et al. 2019

View full text Add to dashboard Cite

Renewable energy resources (RESs) play an important role in the upgrading and transformation of the global energy structure. However, the question of how to improve the utilization efficiency of RESs and reduce greenhouse gas emissions is still a challenge. Combined heating and power (CHP) is one effective solution and has experienced rapid development. Nevertheless, with the large scale of RESs penetrating into the power system, CHP microgrid economic operation faces great challenges. This paper proposes a CHP microgrid system that contains renewable energy with considering economy, the environment, and system flexibility, and the ultimate goal is to minimize system operation cost and carbon dioxide emissions (CO2) cost. Due to the volatility of renewable energy output, the fuzzy C-means (FCM) and clustering comprehensive quality (CCQ) models were first introduced to generate clustering scenarios of the renewable energy output and evaluate the clustering results. In addition, for the sake of improving the flexibility and reliability of the CHP microgrid, this paper considers the battery and integrated energy demand response (IEDR). Moreover, the strategy choices of microgrid operators under the condition of grid-connected and islanded based on environment and interest aspects are also developed, which have rarely been involved in previous studies. Finally, this stochastic optimization problem is transformed into a mixed integer linear programming (MILP), which simplifies the calculation process, and the results show that the operation mode under different conditions will have a great impact on microgrid economic and environmental benefits.

show abstract

“…To better illustrate the new contributions of this research work, the uncertain parameters (e.g., load forecast uncertainty) are not considered in the proposed AC OPF model. However, they can be modeled in the proposed sub-transmission AC OPF approach using, e.g., scenario approach [18], stochastic programming [19], or robust optimization techniques [20,21].…”

Section: Introductionmentioning

confidence: 99%

Incorporating Bus-Bar Switching Actions into AC OPF to Avoid Over-Current Status

Tavakkoli

Amjady

2019

Scientia Iranica

Self Cite

View full text Add to dashboard Cite

This paper presents a new AC Optimal Power Flow (AC OPF) model for subtransmission networks. This model, which consists of sub-transmission and distribution bus-bar switching actions, can avoid undesirable Over-Current (OC) status and the subsequent actions of OC relays. The proposed AC OPF optimizes the bus-bar switching actions along with optimizing sub-transmission control actions. Also, to consider the impact of the actions of OC relays in the proposed AC OPF, the cost of load shedding caused by these relay actions is included in the objective function and minimized along with the sub-transmission operation cost. The bus-bar switching actions were modeled using binary decision variables. Therefore, the proposed AC OPF model is formulated as a Mixed-Integer Non-Linear Programming (MINLP) optimization problem. The e ectiveness of the proposed model is illustrated for a real-world sub-transmission network of Iran's power system.

show abstract

Multi-period stochastic security-constrained OPF considering the uncertainty sources of wind power, load demand and equipment unavailability

Cited by 59 publications

References 12 publications

A new AC OPF tool for sub‐transmission networks considering distribution switching actions and load‐transferring capability

A new AC OPF tool for sub‐transmission networks considering distribution switching actions and load‐transferring capability

Research on Economic Operation Strategy of CHP Microgrid Considering Renewable Energy Sources and Integrated Energy Demand Response

Incorporating Bus-Bar Switching Actions into AC OPF to Avoid Over-Current Status

Contact Info

Product

Resources

About