Sliding mode control for PMSG Based Dynamic Voltage Restorer

Mahalakshmi, M.; Latha, S.; Ranjithpandi, S.

doi:10.1109/iceets.2013.6533578

Cited by 9 publications

(4 citation statements)

References 9 publications

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“…The other one is sliding mode, it means when the system is confined on the surface. [21][22][23][24] The designing of SMC contains two steps: (a) steady F I G U R E 2 Equivalent circuit of a distribution network along with DVR hyperplane selection in the mistake space on which the movement should be confined, called the sliding surface and (b) combination of a control law, which makes any arbitrary initial condition attracted towards sliding surface and remains on the hyperplane.…”

Section: Smc For Dvr Controlmentioning

confidence: 99%

Development and performance analysis of PSO‐optimized sliding mode controller–based dynamic voltage restorer for power quality enhancement

Jeyaraj

Devaraj

Velusamy

2019

Int Trans Electr Energ Syst

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Summary In the distribution power system, voltage sag and swell are the critical issues. The impact of this issue creates major economic loss and power loss in the distribution system. There are several detection methods available, mainly, connecting the FACTS devices such as Static Compensator (STATCOM), Unified Power Quality Conditioner (UPQC), and dynamic voltage restorer (DVR) at the point of sag or swell. DVR is one of the custom power devices to mitigate the voltage sag and swell. Sliding mode controller (SMC) is proposed in the paper, which is used to regulate the DVR to mitigate the voltage sag issue. Particle swarm optimization (PSO) algorithm is utilized in this work to find the optimum value of SMC parameters, namely, Kp and Ki, with the objective of minimizing the integral square error (ISE). A simple two feeder distribution network with DVR is developed in MATLAB‐SIMULINK to assess the performance of DVR under various faults and disturbed situations. The mitigation level and THD values of PSO‐optimized SMC‐based DVR results are compared with the PI controller–based DVR, PSO‐optimized PI controller DVR, and SMC‐based DVR. At last, in the proposed method, the trial is taken by adding a renewable energy resource, that is, PV farm at 400‐kW power rating. The solar energy is integrated with the existing distribution system, and the results are incorporated. Simulation results show that the PSO‐optimized SMC‐based DVR can compensate the voltage sag and swell and also reduce the load voltages efficiently.

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Section: Smc For Dvr Controlmentioning

confidence: 99%

Development and performance analysis of PSO‐optimized sliding mode controller–based dynamic voltage restorer for power quality enhancement

Jeyaraj

Devaraj

Velusamy

2019

Int Trans Electr Energ Syst

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“…Ug q " Ug q, f`Ugq, b (18) In summary, the main DFB control system diagram of PMSG grid-side VSC is shown in Figure 3.…”

Section: Design Of Differential Flatness-based Controller For Grid-simentioning

confidence: 99%

“…In [15,16], a new direct power control algorithm based on space vector modulation using sliding mode control is presented, which aims at inhibiting the second order harmonics of DC-bus voltage. The application of a dynamic voltage restorer (DVR) connected to variable speed wind turbines to allow wind turbine systems an uninterruptible fault ride-through of voltage dips is investigated in [17,18]. Although these improved control schemes have some certain control effects on the fault-tolerance capability of wind turbines, only one aspect of various problems is solved and some control schemes apply extra hardware, such as crowbars, DVRs and so on.…”

Section: Introductionmentioning

confidence: 99%

An Optimal Integrated Control Scheme for Permanent Magnet Synchronous Generator-Based Wind Turbines under Asymmetrical Grid Fault Conditions

Wang

Liu

2016

Energies

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Abstract:In recent years, the increasing penetration level of wind energy into power systems has brought new issues and challenges. One of the main concerns is the issue of dynamic response capability during outer disturbance conditions, especially the fault-tolerance capability during asymmetrical faults. In order to improve the fault-tolerance and dynamic response capability under asymmetrical grid fault conditions, an optimal integrated control scheme for the grid-side voltage-source converter (VSC) of direct-driven permanent magnet synchronous generator (PMSG)-based wind turbine systems is proposed in this paper. The optimal control strategy includes a main controller and an additional controller. In the main controller, a double-loop controller based on differential flatness-based theory is designed for grid-side VSC. Two parts are involved in the design process of the flatness-based controller: the reference trajectories generation of flatness output and the implementation of the controller. In the additional control aspect, an auxiliary second harmonic compensation control loop based on an improved calculation method for grid-side instantaneous transmission power is designed by the quasi proportional resonant (Quasi-PR) control principle, which is able to simultaneously restrain the second harmonic components in active power and reactive power injected into the grid without the respective calculation for current control references. Moreover, to reduce the DC-link overvoltage during grid faults, the mathematical model of DC-link voltage is analyzed and a feedforward modified control factor is added to the traditional DC voltage control loop in grid-side VSC. The effectiveness of the optimal control scheme is verified in PSCAD/EMTDC simulation software.

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“…Many types of voltage injection methods [11] are discussed. In [12][13][14][15][16][17][18], various types of control strategies are discussed for controlling of DVR. Some of the famous control strategies are Adaline based fundamental extraction, space vector modulation, energy optimized control and synchronous reference frame theory.…”

Section: Introductionmentioning

confidence: 99%

A Novel Reduced-Rule Fuzzy Logic Based Self-Supported Dynamic Voltage Restorer for Mitigating Diverse Power Quality Problems

Singh¹,

Bhat²,

Firdous³

2019

IJEEI

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For shielding voltage sensitive loads from diverse power quality problems (Voltage harmonic distortion and voltage sag/swell) a wide variety of custom power devices are used. Dynamic voltage restorer (DVR) is one of the important custom power device presently used for mitigation of above mentioned power quality problems. In this paper, reduced-rule fuzzy logic controller based on synchronous reference frame theory for controlling of self-supported dynamic voltage restorer (DVR) is proposed. As a result of the proposed controller, the mathematical model of plant is not at all needed and the control signals required by the DVR are thoroughly provided during various types of power quality problems at the source side. The performance of this technique is better than the other existing techniques and it is very simple to implement, less complex, very flexible and robust in nature. For the same system parameters, the fuzzy logic based controller uses the less amount of reactive power to mitigate the various disturbances at source side compared to PI based controller, which results into reduced rating of IGBTs and consequently leading to lowering of the overall cost. DVR is simulated for mitigation of various power quality problems (voltage harmonic distortion, balanced voltage sag/swell, unbalanced voltage sag/swell, balanced voltage sag/swell with harmonic distortion and unbalanced voltage sag/swell with harmonic distortion) and the simulation results verified by experimental results are presented displaying the workability of proposed controller.

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Sliding mode control for PMSG Based Dynamic Voltage Restorer

Cited by 9 publications

References 9 publications

Development and performance analysis of PSO‐optimized sliding mode controller–based dynamic voltage restorer for power quality enhancement

Development and performance analysis of PSO‐optimized sliding mode controller–based dynamic voltage restorer for power quality enhancement

An Optimal Integrated Control Scheme for Permanent Magnet Synchronous Generator-Based Wind Turbines under Asymmetrical Grid Fault Conditions

A Novel Reduced-Rule Fuzzy Logic Based Self-Supported Dynamic Voltage Restorer for Mitigating Diverse Power Quality Problems

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