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Energies 2016, 9(12), 1085; doi:10.3390/en9121085

Research on a Micro-Grid Frequency Modulation Strategy Based on Optimal Utilization of Air Conditioners

Collaborative Innovation Center of Key Power Energy-Saving Technologies in Beijing, North China University of Technology, Beijing 100144, China
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Academic Editor: Josep M. Guerrero
Received: 30 September 2016 / Revised: 28 November 2016 / Accepted: 29 November 2016 / Published: 19 December 2016
(This article belongs to the Special Issue Microgrids 2016)
View Full-Text   |   Download PDF [3994 KB, uploaded 19 December 2016]   |  

Abstract

With the proportion of air conditioners increasing gradually, they can provide a certain amount of frequency-controlled reserves for a micro-grid. Optimizing utilization of air conditioners and considering load response characteristics and customer comfort, the frequency adjustment model is a quadratic function model between the trigger temperature of the air conditioner compressor, and frequency variation is provided, which can be used to regulate the trigger temperature of the air conditioner when the micro-grid frequency rises and falls. This frequency adjustment model combines a primary frequency modulation method and a secondary frequency modulation method of the energy storage system, in order to optimize the frequency of a micro-grid. The simulation results show that the frequency modulation strategy for air conditioners can effectively improve the frequency modulation ability of air conditioners and frequency modulation effects of a micro-grid in coordination with an energy storage system. View Full-Text
Keywords: micro-grid; frequency control; thermostatically controlled loads; energy storage system micro-grid; frequency control; thermostatically controlled loads; energy storage system
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Wan, Q.; Bian, Y.; Chen, Y. Research on a Micro-Grid Frequency Modulation Strategy Based on Optimal Utilization of Air Conditioners. Energies 2016, 9, 1085.

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