Journal of Ocean Engineering and Science

Volume 1, Issue 4

(2)Reactive power control and optimisation of hybrid off shore tidal turbine with system uncertainties

Asit Mohanty^{a ,}^∗, Meera Viswavandya ^b , Prakash K Ray ^c , Sthitapragyan Mohanty ^d^aDepartment of Electrical Engineering, College of Engineering and Technology, Bhubaneswar 751003, India

^bAssociate Professor, CET Bhubaneswar, India

^c Department of Electrical Engineering, IIIT, Bhubaneswar 751003, India

^d Research Scholar, CET Bhubaneswar, India

Received 10 March 2016; accepted 24 June 2016
Available online 9 July 2016

Abstruct

This paper projects an isolated hybrid model of Offshore wind-diesel-tidal turbine and discusses the stability and reactive power management issue of the whole system. The hybrid system often loses its stability as it becomes prone to uncertain load and input parameters and therefore the necessity of Reactive power management becomes necessary. The overall stability of the hybrid offshore wind-diesel-tidal turbine is made possible by the management of reactive power in the hybrid system through the application of FACTS devices. And therefore the dynamic hybrid model of the DFIG and DDPMSG based offshore wind-diesel-tidal turbine is analysed for stability with different input parameters like wind and tidal energies. For detailed modelling and simulation, a small signal model of the whole hybrid system is designed and reactive power management of the system is achieved by the incorporation of a STATCOM controller. For improvement of stability and reactive power compensation of the hybrid system, GA and PSO optimised STATCOM controller is used.
© 2016ShanghaiJiaotongUniversity.PublishedbyElsevierB.V.
This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ).

Keywords: Offshore wind-diesel-tidal hybrid system; DFIG; DDPMSG; Reactive power; STATCOM; PSO.