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博士論文 - Nath Tripathi Ravi - 九州工業大学(工学) - 太陽光発電システムと系統連系に関する研究 -モデリング、制御器設計、最適化

書誌事項

タイトル

Solar Photovoltaic Power Generating System & Grid Integration -Modeling, Controller Design and Optimization

タイトル別名

太陽光発電システムと系統連系に関する研究 -モデリング、制御器設計、最適化

著者名

Nath Tripathi Ravi

学位授与大学

九州工業大学 (大学ID:0071) (CAT機関ID:KI000844)

取得学位

博士(工学)

学位授与番号

甲生工第278号

学位授与年月日

2017-03-24

注記・抄録

Solar photovoltaic power generating system is an alternative as a renewable energy source and rapidly growing market since last decade. The performance of a solar photovoltaic array PV is dependent upon the temperature and irradiance level and it is necessary to study the characteristics of photovoltaic (PV) array. The solar photovoltaic modules can be modelled on the electrical equivalent model of solar cell. The two-diode model based Solar PV simulator is proposed with partial shading capability with bypass and blocking diode effect and the parameters: reverse saturation current and resistances are computed using the circuit equations associated with the electrical models of solar cell. The mathematical computational scheme for modelling is simplified for two diode model with better accuracy. The two diode based modelling method proposed for PV simulator in MATLAB-Simulink used the computational data of the first diode equation and the computation of second diode equation is replaced by the coefficient multiplied with the data of first diode. This simulator model accuracy is analysed for the combined effect of irradiance and temperature as according to the standard PV module datasheet. Incremental conductance MPPT algorithm is utilized through dc-dc converter to track MPP and boost the dc voltage for required application.

One of the most efficient and adequate application and utilization of power generated through PV is operation in grid connected mode. The grid integration of PV system requires a power electronics interface capable of conversion from dc-ac. Voltage source inverter(VSI) used as a power electronics interface and dc voltage as an input to converter have to be regulated to the required level for the power flow from converter side to load/grid side. It may be difficult to achieve good control of dc voltage using conventional PI controller having only one-degree-of-freedom (1-DOF) due to the trade-off between overshoot (in step response) and disturbance response. 2-DOF controller is reported and implemented for dc voltage control. The PLL is used for the grid frequency synchronization and SRFT, PBT and fryze conductance theory has been discussed for reference current generation. LCL filter is comprehensively designed with passive damping to minimize the ripple generated through VSI. The controller gains of dc voltage is optimally tuned using proposed application of data driven tuning method (FRIT) programmed in MATLAB based

upon the particle swarm optimization (PSO) algorithm. The fundamental idea related to FRIT method is the extraction of input and output data, reference model setting and range of controller gains. Also, the better set point and transient response is reported considering performance parameters.

Grid integrated PV system is modelled in MATLAB-Simulink and some part of the modelling also developed in Xilinx system generator (XSG) used for DSP and FPGA design. The focus is to design a model in XSG to develop an experimental prototype of the grid connected system controlled using FPGA through VIVADO interface.

九州工業大学博士学位論文 学位記番号:生工博甲第278号 学位授与年月日:平成29年3月24日

1 Introduction and Literature review|2 Solar PV power generating system|3

Grid PV System Integration: 2-DOF Controller|4

Data Driven Optimized Tuning of Controller|5 Xilinx System Generator (Xsg/Sys-Gen) Modelling for HIL FPGA Implementation|6 Conclusion

平成28年度

九州工業大学博士学位論文(要旨)学位記番号:生工博甲第278号 学位授与年月日:平成29年3月24日

目次

  1. 2017-10-02 再収集 / (index.pdf)

キーワード

Photovoltaic Grid integration Controller LCL Filter Optimization

各種コード

NII論文ID(NAID)

500001036646

NII著者ID(NRID)
  • 8000001129925
本文言語コード
  • eng
データ提供元
  • 機関リポジトリ (国立大学法人九州工業大学)
  • NDLデジタルコレクション

九州工業大学(工学) - 博士論文

工学 - 博士論文