A coordinated real-time optimal dispatch method for unbundled electricity markets

2002 ◽  
Vol 17 (2) ◽  
pp. 482-490 ◽  
Author(s):  
Xing Wang ◽  
Yong-Hua Song ◽  
Qiang Lu
Keyword(s):  
Real Time ◽  
Electricity Markets ◽  
Optimal Dispatch ◽  
Time Optimal

scholarly journals Multi-Time Scale Optimal Dispatch for AC/DC Distribution Networks Based on a Markov Chain Dynamic Scenario Method and MPC

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Jie Liu ◽  
Xingquan Ji ◽  
Kejun Li ◽  
Kaiyuan Zhang
Keyword(s):  
Markov Chain ◽  
Real Time ◽  
Time Scale ◽  
Forecast Error ◽  
Distribution Networks ◽  
Optimal Dispatch ◽  
Dc Distribution ◽  
Chain Dynamic ◽  
Time Optimal ◽  
Scenario Method

A multi-time scale optimal dispatch model based on the scenario method and model predictive control (MPC) in the AC/DC distribution network is established due to the uncertainty of wind and load. A Markov chain dynamic scenario method is proposed, which generates scenarios by characterizing the forecast error via empirical distribution. Considering the time correlation of the forecast error, Markov chain is adopted in the Markov chain dynamic method to simulate the uncertainty and variability in wind and load with time. A multi-time scale optimal dispatch strategy based on MPC is proposed. The operation scheduling of operation units is solved in day-ahead and intraday optimal dispatch by minimizing the expected value of total cost in each scenario. In the real-time optimal dispatch, the stability and robustness of system operation are considered. MPC is adopted in the real-time optimal dispatch, taking the intraday scheduling as reference and using the roll optimization method to compute real-time optimal dispatch scheduling to smooth the output power. The simulation results in a 50-node system with uncontrollable distributed energy demonstrate that the proposed model and strategy can effectively eliminate fluctuations in wind and load in AC/DC distribution networks.

Real-time Optimal Dispatch of Behind-the-Meter DERs for Secondary Frequency Regulation

2021 ◽  
Author(s):  
Jitendra Thapa ◽  
Mohammad MansourLakouraj ◽  
Mukesh Gautam ◽  
Michael Abdelmalak ◽  
Mohammed Benidris ◽  
...  
Keyword(s):  
Real Time ◽  
Frequency Regulation ◽  
Optimal Dispatch ◽  
Time Optimal
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