Total views : 324

Implementation of FPGA based DPWM-Digital PI Closed Loop Controller for Voltage Regulation

Affiliations

  • Department of Electronics and Instrumentation Engineering, Annamalai University, Annamalai Nagar, Chidambaram - 608002, Tamil Nadu, India
  • Department of Electrical and Electronics Engineering, Arunai Engineering College, Velu Nagar, Tiruvannamalai - 606603, Tamil Nadu, India

Abstract


Objectives: In this paper, a Field Programmable Gate Array (FPGA) based real time implementation of a closed loop controller for regulating the load voltage under line and load disturbances by generating Digital Pulse Width Modulation (DPWM) is developed. Digital Proportional Integral (DPI) controller is designed to generate the DPWM. Methods: DPWM are developed by two methods: Counter based and Delay line based. The closed loop DPWM activated DC-DC buck converter is simulated using MODELSIM and tested in real time using Xilinx Spartan 3A DSP FPGA. Findings: Hardware results show the regulated load voltage by updating the DPWM control signal duty cycle to compensate the line and load disturbances. FPGA based DPWM provides less complexity in design. Improvements: Hybrid based DPWM method with closed loop control for DC-DC Buck converter could be used for voltage regulation.

Keywords

Closed Loop Controller, Digital PI, DPWM, FPGA.

Full Text:

 |  (PDF views: 317)

References


  • Wang Li, Shiang-Shong Chen. Design of a DC Excitation Control for an Autonomous Wound-Rotor Induction Generator. IEEE Transactions on Industry Applications. 2013 Oct; p. 1-8.
  • Seonghye Kim, Feel-Soon Kang. Multifunctional Onboard Battery Charger for Plug-in Electric Vehicles. IEEE Transactions on Industrial Electronics. 2015 Jun; 62(6):3460-72.
  • Jos’e M. Blanes, Gutierrez Roberto, Garrigos Ausias, Lizan Jose Luıs, Cuadrado Jesus Martınez. Electric Vehicle Battery Life Extension Using Ultra capacitors and an FPGA Controlled Interleaved Buck-Boost Converter. IEEE Transactions on Power Electronics. 2013 Dec; p. 5940-48.
  • Barry W. Williams. DC-to-DC Converters with Continuous Input and Output Power. IEEE Transactions on Power Electronics. 2013 May; 28(5):2307-16.
  • Subramanian K, Sarath Kumar V, Saravanan EM, Dinesh E. Implementation of One Cycle Control Technique in Dc-Dc Buck Converter. Indian Journal of Science and Technology. 2015 Jan; 8(S2):200–6.
  • Youness Hassan, Moness Mohamed, Khaled Mahmoud. MPSoCs and Multicore Microcontrollers for Embedded PID Control: A Detailed Study. IEEE Transaction on Industrial Informatics. 2014 Nov; 10(4):2122-34.
  • Kumar Mayank, Gupta Rajesh. Time Domain Analysis of Sampling Effect in DPWM of DC-DC Converters. IEEE Transactions on Industrial Electronics. 2015 Nov; 62(11):6915 – 24.
  • Kapat Santanu. Configurable Multi-mode Digital Control for Light Load DC-DC Converters with Improved Spectrum and Smooth Transition. IEEE Transactions on Industrial Electronics. 2016 Mar; 31(3):2680-88.
  • Costinett Daniel, Rodriguez Miguel, Maksimovic Dragan. Simple Digital Pulse Width Modulator under 100 ps Resolution Using General-Purpose FPGA. IEEE Transactions on Power Electronics. 2013 Oct; 28(10):4466-72.

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.