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Optimal Peak Regulation Strategy of Virtual and Thermal Power Plants PengLi 1,YuanfengChen,KangYang 2,PingYang,Jingyi Yu 1,SenjingYao,ZhuoliZhao3*, Chun Sing Lai3,4*, Ahmed F. Zobaa4 and Loi Lei Lai3* 1Digital Grid Research Institute of China Southern Power Grid, Guangzhou, China, 2Guangdong Key Laboratory of Clean Energy
This paper first analyzes the impact of wind power and photovoltaic negative peak regulation characteristics on regional power grid peak regulation, and then proposes a
Nano-enhanced PCMs have found the thermal conductivity enhancement of up to 32% but the latent heat is also reduced by up to 32%. MXene is a recently developed 2D nanomaterial with enhanced electrochemical properties showing thermal conductivity and efficiency up to 16% and 94% respectively.
This paper presents an optimal scheduling model for power system peak load regulation considering the short-time startup and shutdown operations of a thermal
In a molten salt SPT plant with thermal energy storage, the thermal energy storage system isolates the heat collection system from the conventional system, so the heat collection system, the SGS and the power generation system are relatively independent. In the discussion part, the receiver and the conventional system are
Therefore, this paper presents a regenerative system of electric thermal storage boiler for peak load regulation in summer, which is used to solve the technical problem of energy waste caused by waste wind power in summer. 2 System design The main starting point of the design of regenerative electric boiler regenerative system is
China''s energy supply has always been dominated by coal-fired power units whose installed capacity accounts for more than 60% of the power generation capacity [8]. However, the load response rate
With the rapid development of new energy sources, the peak load regulation of power grids is increasing day by day, while the northern part of China is
The SPT station is composed of multiple subsystems, including that of solar concentrating system, heat absorption system, steam generation system (SGS), thermal energy storage system, power generation system, etc., as shown in Fig. 1 which is a process schematic of molten salt SPT in TRNSYS platform. In the molten salt SPT
This paper presents an optimal scheduling model for power system peak load regulation considering the short-time startup and shutdown operations of a thermal power unit.
Against this backdrop, this study would like to: (1) propose a novel approach of integrating the HTTES into the conventional coal-fired power plant to use the stored thermal energy in high grade and high efficiency; (2) evaluate the feasibility of integrating an HTTES system into the water-steam cycle of a thermal power plant with a high
This work provides a global perspective for virtual power plants to participate in the formulation of power system peak regulation rules. Keywords: carbon-peak and carbon
Combined Optimal Dispatch of Thermal Power Generators and Energy Storage Considering Thermal Power Deep Peak Clipping and Wind Energy Emission Grading Punishment. Junhui Li 1, Xuanzhong Luo 1,2, Changxing Ge
Abstract: With the increasing peak-valley difference of power grid and the increasing proportion of nuclear power supply structure, it is imperative for nuclear power to participate in Peak load regulation of power system. This article proposes a combined optimal dispatch model of nuclear-thermal-energy storage with nuclear power participating in
This study proposes options for upgrading a 1610-MW el nuclear power plant with the addition of a thermal energy storage system and secondary power generators. The total whole-system benefits of operating the proposed configuration are quantified for several scenarios in the context of the UK''s national electricity system using
Concentrating solar power (CSP) is a new form of solar power generation, and it has schedulability because it contains heat storage device. The capacity of the heat storage affects the operating characteristics of the CSP directly, and configuring the thermal storage capacity of CSP properly can achieve the best controllability and economical efficiency. In
In many chiller plants, high coefficient of performance (COP) is only achieved at a few favorable part load ratios (PLRs), while the COP is low at many other non-favorable PLRs. To address this issue, this study proposes a generic load regulation strategy that aims to maintain chiller plants operating at high COP, particularly under non
On the generation side, studies on peak load regulation mainly focus on new construction, for example, pumped-hydro energy storage stations, gas-fired power units, and energy storage facilities [2]. However, as mentioned in [2], the limited installed capacity of these energy infrastructures makes it difficult to meet the power system peak
Integrated variable renewable energy presents a flexibility requirement for power system operation, as depicted in Fig. 1.The graph in Fig. 1 illustrates three curves, where the blue curve represents the total load demands, the yellow curve indicates the net load, produced by subtracting the curve of renewable energy generation from the total
Naturally, more attention has been focused on the regulations for PFC performances of power generations. 9 Meanwhile, it is common for thermal power plants to undertake deep peak regulation in China, as the proportions of pumped storage, and gas-fired generation with well peak regulation performance are too small to meet the peak shaving
to participate in the auxiliary service market and facilitate deep peak load regulation in the thermal power controllable load and mobile energy- storage characteristics of EVs, Y ang et al 32
In many chiller plants, high coefficient of performance (COP) is only achieved at a few favorable part load ratios (PLRs), while the COP is low at many other non-favorable PLRs. To address this issue, this study proposes a generic load regulation strategy that aims to maintain chiller plants operating at high COP, particularly under non
The offshore wind farms (OWF) act as the must-take generator to increase the renewable fraction while the thermal power plants (TPP) provide peak regulation service to trace the changing net load. The OWF and TPP share the transmission line and point of interconnection.
On this basis, we propose a flexibility enhancement method coordinating battery energy storage capacity optimization and deep peak regulation of thermal
peak load regulation (PLR) mechanism of power systems, and we proposed an op-eration mode for virtual power plants with EVs to participate in the auxiliary service market and facilitate deep peak load regulation in the thermal power units. Based on
The application of energy storage unit is a measure to reduce the peak load regulation pressure of thermal power units. In this paper, a joint optimal
Download Citation | On Sep 1, 2023, Yunyun Yun and others published Optimal operation strategy of peak regulation combined thermal power units and concentrating solar power plant with energy
Therefore, this paper presents a regenerative system of electric thermal storage boiler for peak load regulation in summer, which is used to solve the technical problem of energy waste caused by waste wind power in summer. 2 System design The main starting
Cui, Y., Zhou, H., Zhong, W., et al.: Optimal dispatch of power system with energy storage considering deep peak regulation initiative of thermal power and demand response. High Volt. Eng. 47(5), 1674–1683 (2021) (in Chinese) Google Scholar
scheme of large-scale nuclear power plant participating in peak load regulation of power system is proposed. After quantitatively analysing the peak load regulation cost of nuclear power, the optimal objective is set to minimise the total operation cost including the fuel cost, the start–stop cost, and the peak load regulation cost.
The adjustability of combined heat and power (CHP) plant is one of the main reasons for wind power consumption problem in northern China. During the heating season, a large number of CHP engines are limited by the operation mode of "electricity is determined by heat", and the regulating ability is not high, while the thermal energy storage is an
Abstract: The requirement for primary frequency regulation (PFR) capability of thermal power plants (TPPs) in power systems with larger penetration of renewable energy resources (RESs) is higher since the RESs contribute less to PFR compared with TPPs. To ensure the system frequency stability, this paper proposes to enhance the PFR capability
Nuclear power plants have to be faced with urgent requirement of participating in peak load regulation of power grid. The peak load regulation performances of nuclear power plant (NPP) such as its
Owing to the fact that large-scale peak-load-regulation nuclear power turbine units'' thermal signal is greatly influenced by background noise and has non-stationary and nonlinear characteristics, this paper proposes a new fault diagnosis method for thermal sensors based on an improved independent component analysis (Improved
Energy storage (ES) can mitigate the pressure of peak shaving and frequency regulation in power systems with high penetration of renewable energy (RE) caused by uncertainty and inflexibility. However, the demand for ES capacity to enhance the peak shaving and frequency regulation capability of power systems with high
Naturally, more attention has been focused on the regulations for PFC performances of power generations. 9 Meanwhile, it is common for thermal power plants to undertake
The results indicate that, to achieve efficient load regulation from 0% to 100% for a 1000 MWe S–CO 2 CFPP, the priority configuration for thermal energy storage is CO 2 TES, followed by flue gas TES and electrical heating TES, with powers of
1 INTRODUCTION During the peak load period in winter or summer, the power grid in most regions is always in a state of high load rate. If the balance between supply and demand of power cannot be met in the power grid, it is possible to have accidents during peak
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