Operation of ±100 MVAr TVA STATCON

Schauder, C.; Gernhardt, M.; Stacey, E.J.; Lemak, T.; Gyugyi, Laszlo; Cease, T.W.; Edris, A.

doi:10.1109/61.634209

Cited by 122 publications

(30 citation statements)

References 5 publications

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“…Secondly, H-bridge cascaded STATCOM is a complicated system with more In terms of current control loop, the majority of approaches associate the classic linear control method, in which the non-linear equations of the STATCOM model are linearized with a specific equilibrium. The most extensively used linear control schemes are PI controllers [9], [10]. In [9], to regulate reactive power, only a simple PI controller is lugged out.…”

Section: Introductionmentioning

confidence: 99%

“…In [9], to regulate reactive power, only a simple PI controller is lugged out. In [10], through a decoupled control strategy, the PI controller is used in a synchronous d-q frame. However, it is hard to find the suitable parameters for designing the PI controller and the performance of the PI controller might degrade with the external disturbance.…”

Section: Introductionmentioning

confidence: 99%

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Power Quality Improvement Using Multi-level Inverter based DVR and DSTATCOM Using Neuro-fuzzy Controller

Ramya¹,

Ganapathy²,

Suresh³

2017

IJPEDS

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STATCOM is one of the shunt type FACTS controllers which can supply reactive power and improve bus voltage. STATCOM, a controlling device used on alternating current transmission networks, has advantages like transient free switching and smooth variation of reactive power. This paper proposes a cascaded multilevel inverter type DSTATCOM and DVR to compensate voltage sag in utilities in power distribution network. The proposed DSTATCOM is implemented using multilevel topology with isolated dc energy storage and reduced number of switches. A DVR injects a voltage in series with the system voltage and a D-STATCOM implant a current into the system to correct the voltage sag, swell and interruption. The phase shifter PWM technique is described to generate firing pulse to cascaded inverter. The proposed neuro-fuzzy controller follow itself to the sag and provides effective means of mitigation .The voltage sag with the minimum harmonic at the efficacy end. The proposed technique is simulated using MATLAB/Simulink.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Power Quality Improvement Using Multi-level Inverter based DVR and DSTATCOM Using Neuro-fuzzy Controller

Ramya¹,

Ganapathy²,

Suresh³

2017

IJPEDS

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“…In a distribution system, it is mainly used for voltage regulation [5]. This has a major application in weak grids, whose significant grid impedance may lead to large PCC voltage variations compared to that of strong grids.…”

Section: Introductionmentioning

confidence: 99%

Voltage Support Provided by STATCOM in Unbalanced Power Systems

et al. 2014

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Abstract:The presence of an unbalanced voltage at the point of common coupling (PCC) results in the appearance of a negative sequence current component that deteriorates the control performance. Static synchronous compensators (STATCOMs) are well-known to be a power application capable of carrying out the regulation of the PCC voltage in distribution lines that can suffer from grid disturbances. This article proposes a novel PCC voltage controller in synchronous reference frame to compensate an unbalanced PCC voltage by means of a STATCOM, allowing an independent control of both positive and negative voltage sequences. Several works have been proposed in this line but they were not able to compensate an unbalance in the PCC voltage. Furthermore, this controller includes aspects as antiwindup and droop control to improve the control system performance.

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“…STATCOM is the shunt-connected FACTS device that is used to provide reactive power compensation to a transmission line for solving the power quality problems [2]. By their inverter configuration, basic type of STATCOM topology can be realized by either a current-source converter (CSC) or a voltage-source converter (VSC) [3][4][5][6][7][8]. But recent research confirms several merits of CSC based STATCOM over VSC based STATCOM [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Optimal LQR controller in CSC based STATCOM using GA and PSO

Gupta¹,

Tripathi²

2014

Archives of Electrical Engineering

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Abstract:The static synchronous compensator (STATCOM) is the multipurpose FACTS device with the multiple input and multiple output system for the enhancement of its dynamic performance in power system. Based on artificial intelligence (AI) optimization technique, a novel controller is proposed for CSC based STATCOM. In this paper, the CSC based STATCOM is controlled by the LQR. But the best constant values for LQR controller's parameters are obtained laboriously through trial and error method, although time consuming. So the goal of this paper is to investigate the ability of AI techniques such as genetic algorithm (GA) and particle swarm optimization (PSO) methods to search the best values of LQR controller's parameters in a very short time with the desired criterion for the test system. Performances of the GA, PSO & ABC based LQR controllers are also compared. Applicability of the proposed scheme is demonstrated through simulation in MATLAB and the simulation results are shown an improvement in the input-output response of CSC-STATCOM.

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Operation of ±100 MVAr TVA STATCON

Cited by 122 publications

References 5 publications

Power Quality Improvement Using Multi-level Inverter based DVR and DSTATCOM Using Neuro-fuzzy Controller

Power Quality Improvement Using Multi-level Inverter based DVR and DSTATCOM Using Neuro-fuzzy Controller

Voltage Support Provided by STATCOM in Unbalanced Power Systems

Optimal LQR controller in CSC based STATCOM using GA and PSO

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