Optimal short term scheduling of cascaded hydroelectric chain plants with pumped-storage units

Jiangtao, Jia; Zhai, Qiaozhu; Guan, Xiaohong; Wu, Hongyu; Li, Qinghai

doi:10.1109/chicc.2008.4605215

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…Literature [6] determines the pumping and generating states of pumped storage units based on load average deviation to fully utilize the regulation capability of pumped storage and maximize the comprehensive efficiency of multi-energy complementarity. Literature [7] provides a more comprehensive and detailed optimization scheduling model for pumped storage power stations, solving the problem of converting complex operating conditions of pumped storage into models by using linearization methods and constraint transformation methods. However, research on the aggregation response of energy storage and load on the grid side is limited.…”

Section: Introductionmentioning

confidence: 99%

Optimization Scheduling Strategy for Energy Storage and Cement Load Aggregation Considering Production Constraints

Xiao,

He,

Xiao

et al. 2024

J. Phys.: Conf. Ser.

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For energy-intensive cement enterprises closely related to adjustable potential and production processes, an optimization scheduling model is proposed based on the coupling relationship between tasks and materials, taking into account the production constraints of cement users. In addition, energy storage-side pumped storage is aggregated to regulate resources, further enhancing the flexibility of regulation. For pumped storage devices, the constraints include power constraints during the charging and discharging process, power equality constraints, state constraints during charging and discharging, energy state constraints, and final energy constraints. For cement enterprises, taking the example of the new dry cement production process, the generation/consumption of materials and the occupation/release of equipment in each process are analyzed. The state-task network method is used to abstract materials and processes into states and tasks respectively, establishing process constraints for cement load production. Case simulation verifies that the proposed method can effectively reduce the comprehensive electricity cost of pumped storage and cement enterprises while ensuring the normal operation of pumped storage and cement enterprises, providing data guidance and support for cement enterprises to participate in grid interaction.

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Section: Introductionmentioning

confidence: 99%

Optimization Scheduling Strategy for Energy Storage and Cement Load Aggregation Considering Production Constraints

Xiao,

He,

Xiao

et al. 2024

J. Phys.: Conf. Ser.

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Cyclic coordinate descent in hydrothermal nonsmooth problems

et al. 2011

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In this paper we present an algorithm, inspired by the cyclic coordinate descent method, which allows the solution of hydrothermal optimization problems involving pumped-storage plants. The proof of the convergence of the succession generated by the algorithm was based on the use of an appropriate adaptation of Zangwill's global theorem of convergence. Finally, the algorithm proposed is implemented using the Mathematica Package and is applied to an example to illustrate the results obtained.

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Optimization of a Pumped‐Storage Fixed‐Head Hydroplant: The Bang‐Singular‐Bang Solution

Bayón

Grau

Ruiz

et al. 2011

Mathematical Problems in Engineering

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We consider the problem of the optimization of the functioning of a pumped-storage hydroplant. The problem can be mathematically formulated as an optimal control problem, and when the considered hydromodel is of the fixed-head type, an added complication arises: the solution is of the bangsingular-bang type. In this paper, we propose a simple and efficient optimization algorithm to find the solution.

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Optimal short term scheduling of cascaded hydroelectric chain plants with pumped-storage units

Cited by 3 publications

References 7 publications

Optimization Scheduling Strategy for Energy Storage and Cement Load Aggregation Considering Production Constraints

Optimization Scheduling Strategy for Energy Storage and Cement Load Aggregation Considering Production Constraints

Cyclic coordinate descent in hydrothermal nonsmooth problems

Optimization of a Pumped‐Storage Fixed‐Head Hydroplant: The Bang‐Singular‐Bang Solution

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