Experimental Validation of Nonlinear Control for a Voltage Source Converter

Song, Eun Seop; Lynch, Alan F.; Dinavahi, Venkata

doi:10.1109/tcst.2008.2001741

Cited by 94 publications

(49 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In order to design a differential flatness-based controller for the converter [119,[123][124][125], the dynamics (26) is represented in terms of the flat output 2 = , as follows:…”

Section: Control At the Lowest Hierarchical Level: Power Stage The Pmentioning

confidence: 99%

Tracking Control for Mobile Robots Considering the Dynamics of All Their Subsystems: Experimental Implementation

et al. 2017

View full text Add to dashboard Cite

The trajectory tracking task in a wheeled mobile robot (WMR) is solved by proposing a three-level hierarchical controller that considers the mathematical model of the mechanical structure (differential drive WMR), actuators (DC motors), and power stage (DC/DC Buck power converters). The highest hierarchical level is a kinematic control for the mechanical structure; the medium level includes two controllers based on differential flatness for the actuators; and the lowest hierarchical level consists of two average controllers also based on differential flatness for the power stage. In order to experimentally validate the feasibility of the proposed control scheme, the hierarchical controller is implemented via a Σ-Δ-modulator in a differential drive WMR prototype that we have built. Such an implementation is achieved by using MATLAB-Simulink and the real-time interface ControlDesk together with a DS1104 board. The experimental results show the effectiveness and robustness of the proposed control scheme.

show abstract

“…In order to design a differential flatness-based controller for the converter [119,[123][124][125], the dynamics (26) is represented in terms of the flat output 2 = , as follows:…”

Section: Control At the Lowest Hierarchical Level: Power Stage The Pmentioning

confidence: 99%

Tracking Control for Mobile Robots Considering the Dynamics of All Their Subsystems: Experimental Implementation

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Since the PI method design is usually based on a local linearization model or linear controller with compensation, it can only achieve reliable performance and stability in a certain range for BESS converter control [10]. In order to address the problems of the PI method, advanced nonlinear control methods are recommended for improving BESS converter control performance [11].…”

Section: Introductionmentioning

confidence: 99%

An Energy-Based Control Strategy for Battery Energy Storage Systems: A Case Study on Microgrid Applications

et al. 2017

View full text Add to dashboard Cite

Battery energy storage systems (BESSs) with proportional-integral (PI) control methods have been widely studied in microgrids (MGs). However, the performance of PI control methods might be unsatisfactory for BESSs due to the nonlinear characteristics of the system. To overcome this problem, an energy-based (EB) control method is applied to control the converter of a BESS in this study. The EB method is a robust nonlinear control method based on passivity theory with good performance in both transient and steady states. The detailed design process of the EB method in the BESS by adopting an interconnection and damping assignment (IDA) strategy is described. The design process comprises three steps: the construction of the port-controlled Hamiltonian model, the determination of the equilibrium point and the solution of the undetermined matrix. In addition, integral action is combined to eliminate the steady state error generated by the model mismatch. To establish the correctness and validity of the proposed method, we implement several case simulation studies based on a test MG system and compare the control performance of the EB and PI methods carefully. The case simulation results demonstrate that the EB method has better tracking and anti-disturbance performance compared with the classic PI method. Moreover, the proposed EB method shows stronger robustness to the uncertainty of system parameters.

show abstract

“…In addition to this, the trajectory filter used to trace the target output provides smooth transients between the equilibrium points which improve the transient response of the system. Flatness based control of the trajectory of a voltage source converter is compared with the traditional PI feedback controller in study [8]. By this approach the non-linear model is directly implemented instead of a linear approximation.…”

Section: Introductionmentioning

confidence: 99%

A non-linear model based feed forward flatness control approach to speed governor systems of hydropower plants

Koşalay

Özkaya

2017

Teh. vjesn.

View full text Add to dashboard Cite

A NON-LINEAR MODEL BASED FEED FORWARD FLATNESS CONTROL APPROACH TO SPEED GOVERNOR SYSTEMS OF HYDROPOWER PLANTS İlhan Koşalay, Derya ÖzkayaProfessional paper This study is a part of a refurbishment project, which renews the hydro-mechanical speed governor of a hydroelectric power plant (HEPP) with a new digital one. Based on the previous study of the project, which covers the validation of the HEPP model, the simulation studies implemented in Matlab/Simulink environment are conducted to design the best controller philosophy for the digital speed governor controller. In order to be able to give satisfactory response to the load frequency control of the power system, the speed governor should respond to the set point changes as quickly as possible within the safe margins. In order to compensate unsatisfactory performance indices of conventional proportional-integral (PI) controller, a new controller based on the differential flatness theory is designed. The new controller is constructed by adding on a flatness-based feed forward part to the existing PI feedback controller, which results in improved performance compared to the conventional PI controller. Keywords: flatness-based controller; hydroelectric power plant modelling; load frequency control; speed governor Pristup reguliranju ravnomjernosti s unaprijednom spregom sustava regulatora brzine hidroelektrana zasnovan na nelinearnom modeluStručni članak Ovo istraživanje je dio projekta sanacije kojim se hidro-mehanički regulator brzine hidroelektrane (HEPP) zamjenjuje s novim, digitalnim. Na temelju ranijeg istraživanja procjene HEPP modela, simulacijska istraživanja u Matlab/Simulink okruženju provedena su u svrhu razvijanja najbolje filozofije za proizvodnju digitalnog regulatora brzine. Kako bi se moglo ponuditi odgovarajuće rješenje za reguliranje učestalosti punjenja energetskog sustava, regulator brzine bi u okviru dopuštenih granica trebao što brže reagirati na zadane promjene. U svrhu kompenzacije pokazatelja nezadovoljavajuće performanse uobičajenog proporcionalno-integralnog (PI) regulatora, konstruiran je novi regulator zasnovan na teoriji diferencijalne ravnomjernosti. Novi je regulator konstruiran dodavanjem postojećem PI regulatoru povratne sprege na ravnomjernosti zasnovan dio unaprijedne sprege. Rezultat je bolji rad nego s konvencionalnim PI regulatorom.Ključne riječi: modeliranje hidroelektrane; regulator brzine; regulator brzine punjenja; regulator zasnovan na ravnomjernosti

show abstract

Experimental Validation of Nonlinear Control for a Voltage Source Converter

Cited by 94 publications

References 16 publications

Tracking Control for Mobile Robots Considering the Dynamics of All Their Subsystems: Experimental Implementation

Tracking Control for Mobile Robots Considering the Dynamics of All Their Subsystems: Experimental Implementation

An Energy-Based Control Strategy for Battery Energy Storage Systems: A Case Study on Microgrid Applications

A non-linear model based feed forward flatness control approach to speed governor systems of hydropower plants

Contact Info

Product

Resources

About