Effect of capacitive energy storage unit on frequency of interconnected multi-area power systems

Shukla, Rakesh Rajan; Patel, Nitish Kumar

doi:10.1109/spaces.2018.8316331

Cited by 1 publication

(1 citation statement)

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“…To guarantee the balance between the user power requirement and the active power generated by power grid, it is necessary to install the energy storage equipment with a certain capacity to adjust the power fluctuation of the power system. In the power system, the energy storage system is mainly used to calm down the fluctuating power of the system, reduce the sharp oscillation of system and cut down the peak and valley difference of the load power rate curve in purpose of enhancing the power quality [21][22][23]. We introduce the HESS into the inter-connected power system.…”

Section: Hybrid Energy Storage Systemmentioning

confidence: 99%

H∞ Robust Load Frequency Control for Multi-Area Interconnected Power System with Hybrid Energy Storage System

Yan

Sheng

et al. 2018

Applied Sciences

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To enhance the quality of output power from regional interconnected power grid and strengthen the stability of overall system, a hybrid energy storage system (HESS) is applied to traditional multi-area interconnected power system to improve the performance of load frequency control. A novel topology structure of interconnected power system with the HESS is proposed. Considering the external disturbances of the system and the interconnected factors between each control area, the dynamic mathematical model of each area in the new topology is established in the form of state-space equation. Combining the state feedback robust control theory with linear matrix inequality (LMI) theory, the controller is designed to calculate how much power the HESS should provide to power grid in real time, according to the load change of system. Taking the four-area interconnected power system as study object, the simulation results obtained by MATLAB prove that the application of HESS can well improve the frequency stability of multi-area interconnected system and the H∞ robust controller proposed in this paper is effective.

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Section: Hybrid Energy Storage Systemmentioning

confidence: 99%