Frequency-constrained unit commitment problem with considering dynamic ramp rate limits in the presence of wind power generation

Safari, Amin; Shahsavari, Hossein

doi:10.1007/s00521-018-3363-y

Cited by 7 publications

(5 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the transient simulation needed to be implemented repeatedly in the model, which was complex and time-consuming. A frequency-constrained UC model considering the dynamic ramp rate was built in [19] and solved by binary particle swarm optimization, but the heuristic algorithm could not guarantee the optimality of the solution. Further, [20] modeled frequency dynamics using deep learning, but numerous timing simulations and historical operation data were needed.…”

Section: Nomenclaturementioning

confidence: 99%

Integrated Frequency-constrained Scheduling Considering Coordination of Frequency Regulation Capabilities from Multi-source Converters

Li,

Qiao,

et al. 2024

Journal of Modern Power Systems and Clean Energy

View full text Add to dashboard Cite

As the proportion of renewable energy (RE) increases, the inertia and the primary frequency regulation (FR) capability of the power system decrease. Thus, ensuring frequency security in the scheduling model has become a new technical requirement in power systems with a high share of RE. Due to a shortage of conventional synchronous generators, the frequency support of multi-source converters has become an indispensable part of the system frequency resources, especially variable-speed wind turbine generation (WTG) and battery energy storage (BES). Quantitative expression of the FR capability of multi-source converters is necessary to construct frequency-constrained scheduling model. However, the frequency support performance of these converter-interfaced devices is related to their working states, operation modes, and parameters, and the complex coupling of these factors has not been fully exploited in existing models. In this study, we propose an integrated frequency-constrained scheduling model considering the coordination of FR capabilities from multi-source converters. Switchable FR control strategies and variable FR parameters for WTG with or without reserved power are modeled, and multi-target allocation of BES capacity between tracking dispatch instruction and emergency FR is analyzed. Then, the variable FR capabilities of WTG and BES are embedded into the integrated frequency-constrained scheduling model. The nonlinear constraints for frequency security are precisely linearized through an improved iteration-based strategy. The effectiveness of the proposed model is verified in a modified IEEE 24-bus standard system. The results suggest that the coordinated participation of BES and WTG in FR can effectively reduce the cost of the scheduling model while meeting frequency security constraints.

show abstract

Section: Nomenclaturementioning

confidence: 99%

Integrated Frequency-constrained Scheduling Considering Coordination of Frequency Regulation Capabilities from Multi-source Converters

Li,

Qiao,

et al. 2024

Journal of Modern Power Systems and Clean Energy

View full text Add to dashboard Cite

show abstract

“…1) The objective function of the steady-state unit commitment optimization is shown in (15), and the constraints include (7)-(10) and other related steady-state constraints.…”

Section: Unit Commitment Solution Based On Inner-outer Iterative Omentioning

confidence: 99%

“…Reference [14] introduces an analytical calculation method for transient frequency security constraints, but it can only be used in the power system where all unit governor-prime movers are identical. In [15], [16], system frequency security constraints are added to the unit commitment model, but the PFR capability of wind power is not considered and only central forecasting scenarios are considered. Both primary and tertiary reserve constraints in the unit commitment model for conventional units are considered in [17], but the impact of wind power access needs to be analyzed further.…”

Section: Introductionmentioning

confidence: 99%

Scenario-based Unit Commitment Optimization for Power System with Large-scale Wind Power Participating in Primary Frequency Regulation

Hao

Xie³

et al. 2020

Journal of Modern Power Systems and Clean Energy

View full text Add to dashboard Cite

Continuous increase of wind power penetration brings high randomness to power system, and also leads to serious shortage of primary frequency regulation (PFR) reserve for power system whose reserve capacity is typically provided by conventional units. Considering large-scale wind power participating in PFR, this paper proposes a unit commitment optimization model with respect to coordination of steady state and transient state. In addition to traditional operation costs, losses of wind farm de-loaded operation, environmental benefits and transient frequency safety costs in high-risk stochastic scenarios are also considered in the model. Besides, the model makes full use of interruptible loads on demand side as one of the PFR reserve sources. A selection method for high-risk scenarios is also proposed to improve the calculation efficiency. Finally, this paper proposes an inner-outer iterative optimization method for the model solution. The method is validated by the New England 10-machine system, and the results show that the optimization model can guarantee both the safety of transient frequency and the economy of system operation.

show abstract

“…The clog of transmission halls because of wind power is getting less surprising since locales with the best wind power potential are regularly situated a long way from load focuses [19] [20]. The stochastic idea of wind modifies the unit responsibility and dispatch issue [21]. By and large, diminish anticipated expenses.…”

Section: Review Of Literaturementioning

confidence: 99%

A New Solution to Profit Based Unit Commitment Problem Considering PEVs/BEVs and Renewable Energy Sources

Nandi

Kamboj

2020

E3S Web Conf.

View full text Add to dashboard Cite

Daily load demand for industrial, residential and commercial sectors are changing day by day. Also, inclusion of e-mobility has totally effected the operations of realistic power sector. Hence, to meet this time varying load demand with minimum production cost is very challenging. The proposed research work focuses on the mathematical formulation of profit based unit commitment problem of realistic power system considering the impact of battery electric vehicles, hybrid electric vehicles and plug in electric vehicles and its solution using Intensify Harris Hawks Optimizer (IHHO). The coordination of plants with each other is named as Unit commitment of plants in which the most economical patterns of the generating station is taken so as to gain low production cost with higher reliability. But with the increase in industrialization has affected the environment badly so to maintain the balance between the generation and environment a new thinking of generating low cost power with high reliability by causing less harm to environment i.e. less emission of flue gases is adopted by considering renewable energy sources.

show abstract

Frequency-constrained unit commitment problem with considering dynamic ramp rate limits in the presence of wind power generation

Cited by 7 publications

References 35 publications

Integrated Frequency-constrained Scheduling Considering Coordination of Frequency Regulation Capabilities from Multi-source Converters

Integrated Frequency-constrained Scheduling Considering Coordination of Frequency Regulation Capabilities from Multi-source Converters

Scenario-based Unit Commitment Optimization for Power System with Large-scale Wind Power Participating in Primary Frequency Regulation

A New Solution to Profit Based Unit Commitment Problem Considering PEVs/BEVs and Renewable Energy Sources

Contact Info

Product

Resources

About