Fast Selective Harmonic Mitigation in Multifunctional Inverters Using Internal Model Controllers and Synchronous Reference Frames

Campos‐Gaona, David; Peña-Alzola, Rafael; Morales, Jose Luis Monroy; Ordonez, Martin; Anaya‐Lara, Olimpo; Leithead, W.E.

doi:10.1109/tie.2017.2682003

Cited by 36 publications

(14 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is because the controller resonant frequency should be well-tuned to the reference frequency, as the infinite gain band is narrow, making this control method susceptible to grid frequency variations. Non-ideal PR-based controllers use a second-order integrator, which produces a wider resonant frequency band but increases tracking error [20].…”

Section: Harmonic Mitigation Using Srf-based Controllermentioning

confidence: 99%

“…In addition, an active power filter using an SRF-based controller is not affected by changes in grid frequency. The main disadvantage of an SRF-based controller for harmonics suppression is a slow response due to delays introduced by the low-pass filter [20]. In this research, the SRF solution is preferred, given its robustness and easiness to deploy.…”

Section: Harmonic Mitigation Using Srf-based Controllermentioning

confidence: 99%

See 1 more Smart Citation

Novel Control Approach for a Hybrid Grid-Forming HVDC Offshore Transmission System

et al. 2020

Self Cite

View full text Add to dashboard Cite

This article describes a hybrid topology of high-voltage direct current (HVDC) for offshore wind farms using a series connection of a voltage source converter (VSC) and six-pulse diode rectifier (6P-DR). In this topology, the offshore side VSC (OF-VSC) acts as a grid-forming converter to maintain the PCC (point of common coupling) voltage of offshore wind farms (WF) and frequency. In addition, the OF-VSC functions as an active power filter to suppress the 5th, 7th, 11th, and 13th order harmonic current components produced by the 6P-DR, making it almost sinusoidal. Due to the 6P-DR being used in the hybrid converter, this new configuration reduces the total cost of the converters and losses, while preserving the power flow to the onshore gird. Compared to the fully-rated converter and hybrid converter based on a 12-pulse diode rectifier, the power loss and cost are reduced, and in addition, the proposed hybrid converter does not require a phase shift transformer nor a high number of diodes. A 200 MW in an HVDC transmission system using the hybrid configuration was simulated in PSCAD. The results show that the system operated correctly and the harmonic components were filtered.

show abstract

Section: Harmonic Mitigation Using Srf-based Controllermentioning

confidence: 99%

Section: Harmonic Mitigation Using Srf-based Controllermentioning

confidence: 99%

Novel Control Approach for a Hybrid Grid-Forming HVDC Offshore Transmission System

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…[27][28][29][30] Because of its simple structure and easy implementation, many machines have used IMC. 31,32 A composite controller based on the IMC passive control with 2-DOF and resistive active control is designed. In order to improve the reliability and stability of the motion control of ARR, the protection function of the control system includes patient's lower limb spasm and the overrunning signal in the rehabilitation training process, as shown in Fig.…”

Section: Control Strategymentioning

confidence: 99%

Internal Model Control and Experimental Study of Ankle Rehabilitation Robot

Wang¹,

Chang²,

Zhu³

2020

Robotica

View full text Add to dashboard Cite

SUMMARYIn the present work, the ankle rehabilitation robot (ARR) dynamic model that implements a new series of connection control strategies is introduced. The dynamic models are presented in this regard. This model analyzes the robot LuGre friction model and the nonlinear disturbance model. To improve the ARR system’s rapidity and robustness, a composite 2-degree of freedom (2-DOF) internal model control (IMC) controller is presented. The control performance of the compound 2-DOF IMC controller is simulated and analyzed in the present work. The simulation shows that the composite 2-DOF IMC controller has high following performance. For practical testing purposes, 1-DOF passive training and predetermined trajectory following have been completed for different swing amplitudes and frequencies. Moreover, the thrust and tension torque of the robotic dynamic and static loading characteristics are studied in active control mode. The experimental results show the effectiveness of passive training of the given trajectory and impedance training active control strategy. This paper gives the specific functions of ARR.

show abstract

“…Multi‐functional GCIs are gaining significant importance because of their capabilities to compensate harmonics, reactive power, unbalance, and neutral currents along with active power injection to the distribution system. The detailed review of the state of the art on multi‐functional GCI topologies and control strategies reported in the literature have been described in detail with its contributions and the research gaps in Table 1 11‐39 . All previously mentioned research studies discussed in Table 1 demonstrated their efficacy and legitimacy.…”

Section: Introductionmentioning

confidence: 99%

Power management algorithm for a conservative power theory battery storage based multi‐functional three phase grid connectedPVinverter

Oruganti

Sarma

Mortezaei

et al. 2020

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Objective A conservative power theory (CPT) based two‐stage three‐phase multi‐functional grid‐connected photovoltaic (PV) inverter (MGCPI) with auxiliary battery storage system (BSS) is proposed in this article. This proposed configuration offers selective power injection and power conditioning to the consumers. A power management (PM) algorithm is developed to decide the best mode of operation of the MGCPI, taking into account the state‐of‐charge (SOC) of the BSS and the available power at the solar‐PV source for effective coordination between BSS and PV source. Methods CPT is used for computing the MGCPI current reference signals for multi‐functional operations. The feed‐forward linear control systems are designed using classical frequency response analysis for a synergetic operation of BSS and MGCPI. The whole system configuration is modeled using MATLAB/Simulink and validated in real‐time with PM algorithm for unbalanced linear and nonlinear loads using OPAL‐RT based OP4500 grid emulator. Result The injected power, percentage THD of individual phase currents, true power factor, and unbalanced current are measured for various modes of operation. The proposed MGCPI with BSS improves the power quality (PQ) and also injects seamless power at the point of common coupling (PCC) to reduce the grid consumption. Conclusion The real‐time results demonstrate the effectiveness of the proposed approach for unbalanced nonlinear loads in smart electric grid, provisioning harmonic‐free electrical power as per the requirements of IEEE 519‐2014, IEEE 1547a‐2018 standards.

show abstract

Fast Selective Harmonic Mitigation in Multifunctional Inverters Using Internal Model Controllers and Synchronous Reference Frames

Cited by 36 publications

References 20 publications

Novel Control Approach for a Hybrid Grid-Forming HVDC Offshore Transmission System

Novel Control Approach for a Hybrid Grid-Forming HVDC Offshore Transmission System

Internal Model Control and Experimental Study of Ankle Rehabilitation Robot

Power management algorithm for a conservative power theory battery storage based multi‐functional three phase grid connectedPVinverter

Contact Info

Product

Resources

About