Design of GWO optimized dual UPFC controller for damping of power system oscillations

Mallick, Ranjan Kumar; Nahak, Narayan

doi:10.1109/upcon.2016.7894678

Cited by 10 publications

(7 citation statements)

References 16 publications

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“…As per research studies [25,27,31], PSO is very simple and can be implemented easily and so much robust to variations in parameters. GWO provides a very good balance between exploration and exploitation, simple computations [23][24][25]34]. However, PSO and GWO have a chance of being trapped in the local minima.…”

Section: Hybrid Pso-igwo Algorithmmentioning

confidence: 99%

“…The control actions m B and δ E are suitable actions to design a controller [17]. The optimised dual controller is first time reported in [34] as per the knowledge of the author, where m B and δ E control actions of UPFC cooperate with each other. So cooperation of these actions is taken simultaneously in the dual controller.…”

Section: Controller Structure and Problem Formulation For The Singlmentioning

confidence: 99%

“…For damping controller design, the lead-lag controller has been very much popular due to its simple structure and easy on line tuning. In [34], a GWO optimised dual UPFC controller is reported for oscillation damping, where it has been shown that the dual controller outweighs the performance of the single lead-lag controller by a large extent pertaining to damping controller design. The dual controller employs two parallel lead-lag controllers, which enhances the efficacy of the UPFC by the simultaneous action of two of its control actions.…”

Section: Introductionmentioning

confidence: 99%

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Investigation and damping of low‐frequency oscillations of stochastic solar penetrated power system by optimal dual UPFC

Nahak¹,

Mallick²

2018

IET Renewable Power Generation

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Solar power being stochastic and asynchronous in nature, its integration with conventional power generation has so many challenges in damping of low-frequency oscillations. This study presents an investigation of low-frequency oscillation and damping of stochastic solar power integrated power system by a unified power flow controller (UPFC)-based dual optimal controller, which gains are optimised by a novel hybrid particle swarm optimisation and improved grey wolf optimiser. The dual controller simultaneously controls the modulation index of series and phase angle of shunt converters of UPFC, which cooperate with each other, optimising its efficacy and thereby implementing the advantages of both static synchronous series compensator and static synchronous compensator. A detailed Eigen value analysis has been performed with time domain simulations to study the damped oscillatory response of variable and random solar penetration with a power system along with the interaction of solar power with variable synchronous power generations. For a multi-machine system, a multi-input single output dual controller is proposed. A maximum sensor and time delay have been considered to design the controller providing a realistic approach. It is observed that random and heavy solar penetration has a more detrimental effect on system oscillations, which can be damped heavily with the proposed controller, in contrast to particle swarm optimisation, differential evolution, grey wolf optimiser, differential evolution particle swarm optimisation optimised lead-lag and dual controllers.

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Section: Hybrid Pso-igwo Algorithmmentioning

confidence: 99%

Section: Controller Structure and Problem Formulation For The Singlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation and damping of low‐frequency oscillations of stochastic solar penetrated power system by optimal dual UPFC

Nahak¹,

Mallick²

2018

IET Renewable Power Generation

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“…In general, the small-signal model of UPFC includes two parts: the model of controllers and the model of UPFC circuit. According to whether or not ignoring the transients of UPFC reactance (including converter transformers and bridge arm inductors), there are two main dynamic models and corresponding small-signal models in previous literatures [15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…In [15][16][17][18][19], the UPFC dynamic model is derived by disregarding the transients of UPFC reactance, and the linearised state-space model and Phillips-Heffron model of the power system are obtained. In [20,21], the transients of UPFC reactance are considered, and the output currents of UPFC are added to the vector of state variables.…”

Section: Introductionmentioning

confidence: 99%