This paper proposed a novel integrated system with solar energy, thermal energy storage (TES), coal-fired power plant (CFPP), and compressed air energy storage (CAES) system to improve the operational flexibility of the CFPP. A portion of the solar energy is adopted for preheating the boiler''s feedwater, and another portion is stored in the TES for the CAES
Customer ServiceAmong them, the molten salt heat storage technology is widely utilized in renewable energy, finding applications in large-scale energy storage of solar and thermal power generation, energy storage of nuclear power generation, as well as flexible peak shaving in thermal power plants [10].
Customer ServiceThis study proposes a novel distributed multi-energy coupling heating system, aiming to achieve deep and flexible peak shaving by integrating solar energy and AHP coupled system into the...
Customer ServiceFocusing on the relationship between peak-shaving capacity of CHP units and the consumption of renewable energy generation, the problem about operational flexibility of
Customer ServiceTo tackle the dependency on traditional energy sources in harsh winter regions and improve heating quality during periods of thermal demand fluctuations, this paper proposes a new distributed...
Customer ServiceThe appropriate increase in TES capacity can increase the peak shaving capacity provided by CSP, reducing the peak shaving demand for thermal power and the peak shaving cost of the system. Therefore, there is an optimal value for TES capacity that can fully meet peak shaving demand, and PV curtailment reaches a minimum value. In the scenario 2
Customer ServiceThermal power plants are crucial in stabilizing the grid and addressing these challenges through flexibility reformation including deep peak shaving and frequent load variations since the unsteady state energy transfer and thermal dynamics during combustion and heat transformation in thermodynamic processes vary significantly. These conditions lead to issues
Customer ServiceMolten salt heat storage technology has been extensively utilized in solar thermal power plants, demonstrating its wide-ranging application and significance in the field. Yu Zhao
Customer ServiceThis study proposes an optimized operation model for the joint operation of thermal power and energy storage while considering the lifespan degradation of energy storage and the deep peak shaving of thermal power.
Customer ServiceMolten salt heat storage technology has been extensively utilized in solar thermal power plants, demonstrating its wide-ranging application and significance in the field. Yu Zhao proposed three Brayton cycle power generation systems based on solar salt heat storage, and the findings indicate that the combination of a molten salt heat storage
Customer ServiceHigh temperature thermal energy storage systems, in combination with bottom steam cycles, are being investigated as potential cost effective alternatives to traditional large-scale energy storage technologies.
Customer Serviceshift the power production from peak solar irradiance hours to peak electricity consumption hours. The system is helpful in increasing deployment and easy penetration of renewable energy
Customer ServiceThis paper proposes a bi-level optimal sizing and peak-shaving dispatching model for coal-fired thermal power-energy storage hybrid system considering different battery technologies, which is solved by quadratic programming and iterative nested method. The drawing conclusions are summarized as:
Customer ServiceThe operational flexibility of thermal power plants is important to consume renewable energy generation, especially in the regions where combined heat and power
Customer ServiceTo tackle the dependency on traditional energy sources in harsh winter regions and improve heating quality during periods of thermal demand fluctuations, this paper
Customer ServiceTo improve the peak-shaving capability of power system, a bi-level optimal sizing and dispatch model for hybrid coal-fired power-energy storage system considering different electrochemical energy
Customer ServiceThe impact of a concentrating solar power participating in the peak-shaving auxiliary service market on dispatch was also considered. The authors proposed a multi-energy hybrid power dispatch model for an integrated wind-photovoltaic-thermal power system in 31]. This model considered five different dispatch modes and a dynamic carbon emissions trading
Customer ServiceThe operational flexibility of thermal power plants is important to consume renewable energy generation, especially in the regions where combined heat and power (CHP) units account for a high proportion. Focusing on the relationship between peak-shaving capacity of CHP units and the consumption of renewable energy generation, the
Customer ServiceThis study proposes an optimized operation model for the joint operation of thermal power and energy storage while considering the lifespan degradation of energy
Customer ServiceThis study proposes an optimized operation model for the joint operation of thermal power and energy storage while considering the lifespan degradation of energy storage and the deep peak shaving of thermal power. This model measures the cost changes due to the participation of energy storage in thermal power unit peaking. It is able to reflect
Customer ServiceKeywords: carbon capture power plant; virtual energy storage; joint peak shaving; two-stage optimized scheduling; low carbon 1. Introduction With the proposal of ''dual carbon goals'', China''s new energy installed capacity con-tinues to rise. In the first half of 2023, China''s newly installed renewable energy power
Customer ServiceThis paper proposes a bi-level optimal sizing and peak-shaving dispatching model for coal-fired thermal power-energy storage hybrid system considering different battery
Customer ServiceThe development of large-scale, low-cost, and high-efficiency energy storage technology is imperative for the establishment of a novel power system based on renewable energy sources [3].The continuous penetration of renewable energy has challenged the stability of the power grid, necessitating thermal power units to expand their operating range by reducing
Customer ServiceHeat-power peak shaving capacities for thermal energy storage, electric heat pump and both are analyzed using a graphical method, while the operation strategy is proposed to maximize wind accommodation. A simulation model for wind power accommodation considering the energy balances and constraints of all production units is developed based on
Customer Service4.2 Optimization Results. Setting the iterative steps of the rated power and capacity of ES as 50 MW and 500 MWh respectively, Table 4 shows the optimal sizing and operation results of different cases. Figure 4 presents the cost breakdown of different cases. The total cost of Case 1 (without ES) is the largest at 10.278 (cdot) 10 6 (cdot) $, because of
Customer ServiceFocusing on the relationship between peak-shaving capacity of CHP units and the consumption of renewable energy generation, the problem about operational flexibility of CHP plants is analyzed...
Customer ServiceHigh temperature thermal energy storage systems, in combination with bottom steam cycles, are being investigated as potential cost effective alternatives to traditional large
Customer ServiceThis study proposes an optimized operation model for the joint operation of thermal power and energy storage while considering the lifespan degradation of energy storage and the deep...
Customer ServiceAmong them, the molten salt heat storage technology is widely utilized in renewable energy, finding applications in large-scale energy storage of solar and thermal
Customer ServiceAt the same time, it also has the advantages of high energy storage density, long energy storage cycle, and low cost, making it one of the very promising peak shaving methods for thermal power units.
Through comparison, it can be found that under 30 % THA working condition, THS-7 has the strongest peak shaving ability, with a carbon reduction of 142.89 tons/h, which has a good environmental benefit for thermal power plants. THS-6 and THS-8 take second place, and other schemes cannot meet the requirement of peak shaving the load to below 20 %.
Climate change and its negative effects are driving the global shift from fossil fuels to renewable energy sources. To tackle the dependency on traditional energy sources in harsh winter regions and improve heating quality during periods of thermal demand fluctuations, this paper proposes a new distributed heating peak shaving system (DHPS).
Heat storage technology presents a promising solution to this challenge, as it significantly enhances the flexibility of peak shaving in power stations and mitigates supply-demand imbalances within power grids .
Due to the substantial capacity and high energy grade of thermal power units, their energy storage requirements encompass large capacity, high grade, and long cycle, the integration of molten salt heat storage with deep peak shaving for thermal power units is still at an early stage of technological development and demonstration application.
To mitigate the severe energy consumption conflict of “surplus electricity with concurrent heat energy deficit” in CHP for cold regions, it is possible to apply a solar-driven AHP system for heating peak shaving. This approach flexibly meets building heat demands while utilizing waste heat from power plants.
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