Abstract
Home area energy networks will be an essential part of the future Energy Internet in terms of energy saving, demand-side management and stability improvement of the distribution network, while an energy router will be the perfect choice to serve as an intelligent and multi-functional energy interface between the home area energy network and power grid. This paper elaborates on the design, analysis and implementation of coordinated control of the low-voltage energy router-based smart home energy management system (HEMS). The main contribution of this paper is to develop a novel solution to make the energy router technically feasible and practical for the HEMS to make full use of the renewable energy sources (RESs), while maintaining “operational friendly and beneficial” to the power grid. The behaviors of the energy router-based HEMS in correlation with the power grid are investigated, then the coordinated control scheme composed of a reference voltage and current compensation strategy and a fuzzy logic control-based power management strategy is developed. The system model is built on the MATLAB/Simulink platform, simulation results have demonstrated that the presented control scheme is a strong performer in making full use of the RES generations for the HEMS while maintaining the operational stability of the whole system, as well as in collaboration with the power grid to suppress the impact of RES output fluctuations and load consumption variations.
Highlights
Increasing amounts of renewable energy sources (RESs), such as solar and wind, are required to be integrated into the electrical power grid, driven by the growing energy consumption demand as well as the concern for environmental protection
Case 3 investigates the characteristics of the energy router-based home energy management system (HEMS) in response to drastic variations of load consumptions and its functionality to collaborate with the power grid in suppressing the impact of load consumption fluctuations
This paper focuses on the implementation of a low-voltage energy router-based HEMS for optimal use of RESs, while remaining “operational friendly and beneficial” to the power grid
Summary
Increasing amounts of renewable energy sources (RESs), such as solar and wind, are required to be integrated into the electrical power grid, driven by the growing energy consumption demand as well as the concern for environmental protection.
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