Mar 22, 2024 · 关键词: 火电机组, 储热, 深度调峰, 综合经济性, 系统寿命, 碳排放 Abstract: The integration of thermal power plants with heat storage technology can enhance the decoupling
Aug 8, 2019 · Aiming at the current problem of penetration of renewable energy, this paper proposes a technical and economic model of energy storage system participating in deep peak
Mar 1, 2023 · To explore the application potential of energy storage and promote its integrated application promotion in the power grid, this paper studies the comprehensive application and
May 7, 2023 · With the development of the renewable-dominated power system, the requirements for peak shaving and frequency regulation are increasing. A hybrid energy storage system
Sep 1, 2022 · At present, the decarbonization of China''s power system depends on the large-scale integration of renewable energy. Motivating coal-fired power plants to provide deep peak
Feb 1, 2022 · Due to China''s power supply structure, the conventional power units are responsible for the deep load shaving regulation to meet the high penetration challenge of renewable
Nov 6, 2024 · Abstract This paper presents a day-ahead scheduling for multi-energy entities. The deep load regulation involving pumped storages, which refers to deep peak regulation, is
Oct 1, 2021 · Next, for different peak load regulation modes of thermal units, the corresponding peak load compensation rules are processed and converted into linear formulations. An
Mar 15, 2023 · The multi-timescale regulation capability of the power system (peak and frequency regulation, etc.) is supported by flexible resources, whose capacity requirements depend on
Nov 10, 2023 · Because batteries (Energy Storage Systems) have better ramping characteristics than traditional generators, their participation in peak consumption reduction and frequency
Specifically, first, the flexibility requirement of renewable integration is quantified, and the operating characteristics of thermal power units providing deep peak regulation are modeled. On this basis, a capacity optimization for BES is proposed considering peak regulation characteristics of thermal power units.
On this basis, an optimal energy storage allocation model in a thermal power plant is proposed, which aims to maximize the total economic profits obtained from peak regulation and renewable energy utilization in the system simultaneously, while considering the operational constraints of energy storage and generation units.
The dispatching department calls it for free. When the output of thermal power unit is between (1 − k) Pthe and 0.5 Pthe, the thermal power unit has the ability for peak shaving. At this time, there is no need to charge the energy storage system for peak shaving. To avoid deep discharge in energy storage system, SOCmin is set to 20%.
While at the phase of normal peak regulation, the operation cost increases as the power output increases. Therefore, for economic operation, the optimal operating state of thermal power units better be maintained near the lower limit of normal peak regulation. Fig. 3. Deep peak regulation cost of thermal units.
On this basis, a capacity optimization for BES is proposed considering peak regulation characteristics of thermal power units. Extensive case studies on a modified IEEE system compared and analyzed the impacts of grid integration of different renewable mixes on the power system flexibility from thermal power units and energy storage.
The load data was extracted from the historical data of typical daily load, as shown in Table 3. The peak load and valley load are 3475.94 MW and 2595.70 MW, respectively. The parameters of the energy storage system are shown in Table 2 .
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