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[IEEE 2018 5th International Conference on Information, Cybernetics, and Computational Social Systems (ICCSS) - Hangzhou (2018.8.16-2018.8.19)] 2018 5th International Conference on Information, Cybernetics, and Computational Social Systems (ICCSS) - RBF Neural Network Adaptive PID Control for Energy Storage System in Grid-Connected Photovoltaic Microgrid
摘要： In photovoltaic microgrid, the output power of PV array will change with the change of external light and temperature. In order to maintain the stability of output power of PV system, energy storage system is usually added into the system. In a energy storage system, the most widely used control method is proportional-integral-derivative (PID) based control, however, the control effect of PID control is dependent on parameter tuning. In this paper, a PID controller based on adaptive radial basis function (RBF) neural network is proposed to adjust the PID parameters adaptively, and improve the response speed, anti-interference ability and robustness of the traditional PID controller. In the end, the energy storage system is built in the MATLAB/Simulink software, which is applied to the 100kW photovoltaic array to stabilize the output power when the light and temperature changed.
关键词： adaptive control,energy storage system,photovoltaic microgrid,RBF neural network,PID control
更新于2025-09-11 14:15:04
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Robust 3IMPL Control Algorithm For Power Management of SyRG/PV/BES Based Distributed Islanded Microgrid
摘要： In an islanded AC microgrid, a comprehensive algorithm of three phase, improved magnitude, phase locked loop (3IMPL) control algorithm is developed to provide DC off set removal, steady state error removal and fast dynamic response. In addition, the control of the voltage source converter (VSC) using 3IMPL algorithm, provides voltage and frequency control and elimination of harmonics of nonlinear loads. In proposed microgrid, a solar PV array is connected to the DC link through a boost converter and an INC (Incremental Conductance) technique is used for extraction of maximum power from a PV array. Due to intermittency of PV array, a synchronous reluctance generator (SyRG) is used for pico-hydro generation because it is economical, ecologically sustainable, requires less maintenance and extremely reliable. Moreover, a microgrid suffers from problems of variation in generation and continuous load fluctuations, therefore for power balancing between the source and the load, a storage battery is connected across the DC link of VSC through a bidirectional DC-DC converter. Test results on a prototype have verified the control strategy and it is able to improve the power quality of the system at varying solar insolation and unbalance in loads.
关键词： SyRG (Synchronous Reluctance Generator),Bidirectional Converter,PV (Photovoltaic),Microgrid,Power Quality,Pico-Hydro Generation
更新于2025-09-10 09:29:36