Fuzzy-PID Control Strategy for Grid Interface Ocean Wave Energy Conversion

Yaghoub Nazari Mofrad; Dr. Gholam Hossein Sheisy

Ocean wave technology is one of the most exciting areas due to vast but untapped energy potential worldwide. Technologies on ocean wave harvesting energy have been explored for centuries and are still undergoing with challenges. Optimally controlled Wave Energy Conversion System (WECS), designed to operate at full capacity a rather large reaction of their lifetime, may improve the economic prospects for wave power significantly. This paper presents a closed-loop vector control structure based on Fuzzy Proportional-Integral-Derivative (Fuzzy-PID) for a grid-connected WECS driven Self-Excited Induction Generator (SEIG). The paper proposes a Fuzzy-PID controller for Wave Energy Conversion System (WECS). the performance of the proposed controllers such as minimize the transient DC and AC voltage and current ripples, minimize the DC and AC voltage and current Total Harmonic Distortion (THD), deviations, minimize the RMS absolute voltage deviations at the DC and AC load collection buses. Simulation results show that the proposed design approaches are efficient to and Fuzzy-PID design of the controllers and therefore improves the transient performance of the hybrid Diesel-WECS over a wide range of operating conditions, sudden load change and phase-phase short circuit fault.

Select Volume / Issues:

• Volume 8,Issue 2, Mar. 2017

Year:

2017

Type of Publication:

Article

Keywords:

Wave Energy Conversion Systems; Self-Excited Induction Generator; Proportional-Integral-Derivative; Fuzzy-PID control; Membership Function Tuning

Journal:

IJECCE

Volume:

8

Number:

2

Pages:

140-147

Month:

March

ISSN:

2249-071X