scholarly journals Modelling and simulation of solar thermal power generation network

2021 ◽  
Vol 25 (4 Part B) ◽  
pp. 2905-2912
Author(s):  
Bowen Wang
Keyword(s):  
Power Generation ◽  
Total Energy ◽  
Thermal Power ◽  
Energy System ◽  
Solar Thermal ◽  
Generation System ◽  
Solar Thermal Power ◽  
Power Generation System ◽  
Thermal Power Generation ◽  
Solar Thermal Power Generation

In the smart grid context, the article combines SEGS-VI solar thermal power station parameters to establish a solar thermal power generation system model. The thesis is based on the First and Second laws of thermodynamics. It uses the white box model analysis method of the energy system to calculate the solar thermal power generation system-concentrating and collecting subsystem, heat exchange subsystem, and power subsystem to obtain the subsystems dissipation of each process. Finally, the article uses the white box model analysis of the total energy system to treat the subsystems as white boxes, and connects them to form a white box network, makes a reasonable evaluation of the energy consumption status of the total energy system, and finds the weak links in the energy use process of the system. Provide a basis for system energy saving.

CONCEPT STUDY OF MICROGRID DISPATCH STRATEGY FOR SOLAR THERMAL POWER PLANT WITH THERMAL STORAGE

2016 ◽  
Vol 78 (5-8) ◽  
Author(s):  
Noor Bazila Sharifmuddin ◽  
Tohru Suwa ◽  
Sheikh Ahmad Zaki Shaikh Salim
Keyword(s):  
Power Generation ◽  
Thermal Power ◽  
Thermal Storage ◽  
Solar Thermal ◽  
Generation System ◽  
Grid Systems ◽  
Starting Time ◽  
Solar Thermal Power ◽  
Power Generation System ◽  
Solar Thermal Power Generation

Complex grid systems have been gradually replaced by smaller and simpler grid systems called Microgrids. Integration of a solar thermal power generation systems into Microgrids open a new horizon of renewable energy power generation to achieve the supply and demand balance of electricity. Microgrid dispatch strategy is a control method of energy balance between power generation and electricity consumption. A thermal storage integrated into the system buffers the intermittency of solar radiation used as the heat source of the power generation system. The daily starting time for the power generation is determined by the dispatch strategy in search of minimum power from the conventional grid and maximum electricity generation from the solar thermal power generation system. In the simulation stage, the heat energy available for power generation and amount of thermal energy saved in the thermal storage is calculated at each time step using measured solar radiation data as the heat source and load profile data as the consumption required. Based on the simulation result, the power generation starting time for the next day is determined. The effectiveness of the proposed dispatch strategy is demonstrated by obtaining the best starting time and identifying minimum power requiredfrom the conventional grid. The power supply from the conventional grid is reduced by 10% by applying the proposed methodology.

scholarly journals Simulation research on the grid connected generation system of solar thermal power generation

2020 ◽  
Vol 24 (5 Part B) ◽  
pp. 3239-3248
Author(s):  
Yalin Liang ◽  
Yuyao He
Keyword(s):  
Power Generation ◽  
Control Strategies ◽  
Storage System ◽  
Thermal Power ◽  
Solar Thermal ◽  
Generation System ◽  
Loop Control ◽  
Solar Thermal Power ◽  
Thermal Power Generation ◽  
Solar Thermal Power Generation

Objective: To improve the efficiency and stability of the solar thermal power generation system, and promote the optimization and development of solar thermal power generation grid connection. Methods: The working principle of the heat exchanger in the heat storage system is analyzed. Combined with the technological requirements of the system, the mathematical model of the heat exchanger is established by the mechanism modelling method. According to the inherent characteristics and control requirements of the heat storage system, the control schemes are proposed. The control strategies of different control algorithms, such as single-loop control, Smith predictive compensation control, cascade-Smith control, and feedforward-cascade-Smith control, are designed and adopted. The simulation model is established to obtain step response waveforms of different control systems. The advantages and disadvantages of different control strategies are comprehensively analyzed and compared. Results: After introducing the superheated steam mass-flow disturbance, the error of the single-loop control system increases. After adjusting the system to restore the oscillation state, the system error is high (10.24%). Smith predictive compensation control system fluctuates, with a peak time of 548 seconds

Sign in / Sign up

Export Citation Format

Share Document