Erjia ZHANG, Nengling TAI, Yang CHEN, et al. A Coordination Strategy to Smooth Power Fluctuation of Distributed Generation in Integrated Energy System Based on Virtual Energy Storage[J]. Power Generation Technology, 2020, 41(1): 30-40.
DOI:
Erjia ZHANG, Nengling TAI, Yang CHEN, et al. A Coordination Strategy to Smooth Power Fluctuation of Distributed Generation in Integrated Energy System Based on Virtual Energy Storage[J]. Power Generation Technology, 2020, 41(1): 30-40. DOI: 10.12096/j.2096-4528.pgt.19144.
A Coordination Strategy to Smooth Power Fluctuation of Distributed Generation in Integrated Energy System Based on Virtual Energy Storage
A coordination strategy was proposed to smooth the tie-line power fluctuation of the combined heating and power integrated energy system (CMPIES) by using the virtual energy storage system. The structure and energy coupling mode of the CMPIES were analyzed. The controllable devices in CMPIES include micro-gas turbines
heat pumps
batteries and super capacitors. Virtual energy storage system is a thermal model based on utilizing the heat storage characteristics of building. Considering the controllable devices and the virtual energy storage system state index
weighted moving average filtering algorithm was used to optimize the tie-line reference power. The coordination strategy designs state map table to regulate the filter time constant based on the operation state of the controllable devices. The output of controllable devices is adjusted by the correction factor calculated by the state map table. The proposed strategy was validated by the field data from Green Energy University Laboratory in China. The simulation shows the strategy realizes the coupling and coordination between power and heat
ensures the power fluctuation smoothing effect and enhance the CMPIES control flexibility. At the same time
the comfort of the customers participating in the CMPIES can be maintained. The coordination strategy is able to enhance the penetration and consummation of distribution renewable energies and prolong the controllable devices' life.
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references
Liu N, Chen Q, Liu J, et al. A heuristic operation strategy for commercial building microgrids containing EVs and PV system[J]. IEEE Transactions on Industrial Electronics, 2015, 62(4):2560-2570.
Igualada L, Corchero C, Cruz-Zambrano M, et al. Optimal energy management for a residential microgrid including a vehicle-to-grid system[J]. IEEE Transactions on Smart Grid, 2014, 5(4):2163-2172.
Yang Y, Yang N, Li H. Cost-benefit study of dispersed battery storage to increase penetration of photovoltaic systems on distribution feeders[C]//PES General Meeting Conference&Exposition. IEEE, National Harbor, MD, USA, 2014.
Kawachi, Hagiwara H, Baba J, et al. Study on compensation of short term power fluctuation by use of heat pump air conditioning system based on real machine[J]. IEEE Transactions on Power&Energy, 2012, 132(1):77-85.
Xu L Z, Guang Y Y, Zhao X, et al. Combined scheduling of electricity and heat in a microgrid with volatile wind power[J]. Automation of Electric Power Systems, 2011, 35:53-60.
Cristofari C, Norvaišienė R, Canaletti J L, et al. Innovative alternative solar thermal solutions for housing in conservation-area sites listed as national heritage assets[J]. Energy&Buildings, 2015, 89:123-131.
Buonomano A, Palombo A. Building energy performance analysis by an in-house developed dynamic simulation code:an investigation for different case studies[J]. Applied Energy, 2014, 113(1):788-807.