Effect of renewable penetration on economic power dispatch in presence of energy storage

2012 ◽  
Author(s):  
F. R. Pazheri ◽  
M. F. Othman ◽  
N. H. Malik ◽  
T. P. Imthias Ahamed
Keyword(s):  
Energy Storage ◽  
Economic Power ◽  
Power Dispatch ◽  
Economic Power Dispatch

scholarly journals Sizing and Siting of Distributed Generators and Energy Storage in a Microgrid Considering Plug-in Electric Vehicles

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2293 ◽  
Author(s):  
Mingrui Zhang ◽  
Ming Gan ◽  
Luyao Li
Keyword(s):  
Energy Storage ◽  
Electric Vehicles ◽  
Power Supply ◽  
Economic Power ◽  
Two Stage ◽  
Suggested Approach ◽  
Distributed Generators ◽  
Power Dispatch ◽  
Operational Variables ◽  
Economic Power Dispatch

This paper presents a sizing and siting model for distributed generators (DGs) and energy storage systems (ESS) towards the design of a cost-efficient and reliable microgrid considering electric vehicles (EVs). The proposed model exploits the coordinated energy dispatching of DGs, ESS, and EVs, aiming at minimizing the overall planning and operating cost as well as meeting power supply reliability requirements. This issue is addressed in a two-stage framework. The upper stage determines the sizes and sites of candidate DGs and ESS, and the lower stage optimizes the microgrid’s economic power dispatch. Since the two-stage model contains both planning and operational variables, a two-stage iterative heuristic algorithm is designed. The effectiveness of the proposed approach is validated by case studies, and corresponding results demonstrate that the planning approach that considers coordinated management of an EV fleet and economic power dispatch of microgrid achieves better economics. In addition, the suggested approach can also better match distributed generation and power demands as well as securing microgrid power supply.

scholarly journals Distributed Settlement of Frequency Regulation Based on a Battery Energy Storage System

Energies ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 199 ◽  
Author(s):  
Houfei Lin ◽  
Jianxin Jin ◽  
Qidai Lin ◽  
Bo Li ◽  
Chengzhi Wei ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Systems ◽  
Bottom Layer ◽  
Frequency Regulation ◽  
Economic Power ◽  
Battery Energy Storage ◽  
Power Dispatch ◽  
Battery Energy ◽  
Economic Power Dispatch ◽  
Distributed Method

Battery energy storage systems (BESS) have wide applicability for frequency regulation services in power systems, owing to their fast response and flexibility. In this paper, a distributed method for frequency regulation based on the BESS is proposed, where the method includes two layers. The upper layer is a communication network composed of agents, which is used to transmit and process information, whilst the bottom layer comprises the power system with the BESS, which provides a frequency regulation service for the system. Furthermore, a set of fully distributed control laws for the BESS are derived from the proposed distributed method, where economic power dispatch and frequency recovery are simultaneously achieved. Finally, simulations were conducted to evaluate the effectiveness of the proposed method. The results show that the system frequency regulation and economic power dispatch are achieved after considering the limits of the battery state of charge and communication delays.

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