Economic Dispatch of Hydro-Thermal Power System with Large-Scale Wind Power Penetration

2012 ◽  
Author(s):  
Hongjing Chen ◽  
Jianxue Wang ◽  
Yao Zhang
Keyword(s):  
Power System ◽  
Wind Power ◽  
Large Scale ◽  
Thermal Power ◽  
Economic Dispatch ◽  
Thermal Power System

Research on the Optimal Dispatching Strategies of Power System with Large-Scale Wind Power

2013 ◽  
Vol 385-386 ◽  
pp. 1117-1121
Author(s):  
Lin Chuan Li ◽  
Kun Wang
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Large Scale ◽  
Flow Model ◽  
Thermal Power ◽  
Maximum Output ◽  
Generation Cost ◽  
Equivalent Load

Large-scale wind power connected to the power system is a challenge to the traditional dispatch mode which is based on the accuracy of load forecasting and the accessibility of power, how to deal with the randomness and volatility of wind power has become a new problem facing the dispatch of power system. In this paper, an optimal power flow model with the goal of minimizing the total generation cost is established under the environment of generation market. Consider a variety of power supply in the system, the hydro and wind power should be preferentially used; Thermal power units bid for the capacity which is determined when wind power reach its maximum output at the minimum equivalent load time, and then whether the booting units can satisfy the load is checked at the maximum equivalent load time, if not, wind power will be curtailed to boot new thermal units until the load is met. Finally the example shows the feasibility of the dispatching strategies.

The role of wind power and solar PV in reducing risks in the Brazilian hydro-thermal power system

Energy ◽  
2016 ◽  
Vol 115 ◽  
pp. 1748-1757 ◽  
Author(s):  
Johannes Schmidt ◽  
Rafael Cancella ◽  
Amaro O. Pereira
Keyword(s):  
Power System ◽  
Wind Power ◽  
Thermal Power ◽  
Solar Pv ◽  
Thermal Power System

scholarly journals Optimal Scheduling of a Multi-Energy Power System with Multiple Flexible Resources and Large-Scale Wind Power

Energies ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3566 ◽  
Author(s):  
Quanhui Che ◽  
Suhua Lou ◽  
Yaowu Wu ◽  
Xiangcheng Zhang ◽  
Xuebin Wang
Keyword(s):  
Power Systems ◽  
Power System ◽  
Wind Power ◽  
Large Scale ◽  
Cost Model ◽  
Supply And Demand ◽  
Thermal Power ◽  
Wind Farms ◽  
Optimal Scheduling ◽  
Flexible Resources

With the grid-connected operation of large-scale wind farms, the contradiction between supply and demand of power systems is becoming more and more prominent. The introduction of multiple types of flexible resources provides a new technical means for improving the supply–demand matching relationship of system flexibility and promoting wind power consumption. In this paper, multi-type flexible resources made up of deep peak regulation of thermal units, demand response, and energy storage were utilized to alleviate the peak regulation pressure caused by large-scale wind power integration. Based on current thermal plant deep peak regulation technology, a three-phase peak regulation cost model of thermal power generation considering the low load fatigue life loss and oil injection cost of the unit was proposed. Additionally, from the perspective of supply–demand balance of power system flexibility, the flexibility margin index of a power system containing source-load-storage flexible resources was put forward to assess the contribution from each flexibility provider to system flexibility. Moreover, an optimal dispatching model of a multi-energy power system with large-scale wind power and multi-flexible resources was constructed, aimed at the lowest total dispatching cost of the whole scheduling period. Finally, the model proposed in this paper was validated by a modified RTS96 system, and the effects of different flexibility resources and wind power capacity on the optimal scheduling results were discussed.

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