A Nonlinear Voltage Regulator With One Tunable Parameter for Multimachine Power Systems

Gurrala, Gurunath; Sen, Indraneel

doi:10.1109/tpwrs.2010.2069930

Cited by 22 publications

(13 citation statements)

References 18 publications

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“…16, we display the root locus plot of Gen-9 for case-6 such that the critical PSS gain ( ) is minimum among all six cases, with a washout time constant of 7.5 s; wherein a gain (14.4) is selected for the proposed PSS at the damping ratio ( ) 0.2. From the root locus, it is observed that of 16. Root locus of Gen-9 for case 6, 14-generator 59-bus system ( ---: Proposed; ---: [10]).…”

Section: B Fourteen-machine Systemmentioning

confidence: 98%

“…The subscripts and refer to the and axis respectively in Kron's reference frame, and and refers to the and axis, respectively, in Park's reference frame. In the preceding works [10] and [16], wherein infinite bus is replaced with a non-stiff bus for designing PSS and a nonlinear voltage regulator for interconnected power systems, respectively. In the same spirit, in this work we will examine quid pro quo of with the equivalent bus for designing PSS.…”

Section: Proposed Approachmentioning

confidence: 99%

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Power System Stabilizers Design for Multimachine Power Systems Using Local Measurements

Kumar

2016

IEEE Trans. Power Syst.

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In this paper, a technique for designing fixed parameter decentralized power system stabilizers (PSSs) for interconnected power systems is proposed. In the proposed method, local information available at each machine in the multimachine environment, is used to tune parameters of PSS. Conventional design techniques such as P-Vr frequency response approaches, and the method of residues are based on complete system information, wherein phase angles of residues are consistent with the P-Vr phase response and can be used with confidence for design purposes. It is shown that magnitude and phase information of the proposed GEP TF agrees closely with that of P-Vr TF and yields a robust stabilizer. Nonlinear simulation and eigenvalue analysis show the efficacy of the proposed stabilizer to damp out the interarea and local modes of oscillations effectively over a wide range of operating conditions. Superiority of the proposed approach over the conventional approaches is demonstrated with simulation studies on two widely used multimachine systems.Index Terms-Eigenvalue, multimachine systems, power system dynamic stability, power system stabilizer, small signal stability.

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Section: B Fourteen-machine Systemmentioning

confidence: 98%

Section: Proposed Approachmentioning

confidence: 99%

Power System Stabilizers Design for Multimachine Power Systems Using Local Measurements

Kumar

2016

IEEE Trans. Power Syst.

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“…Since the dynamics of δ h and δ are same [23][24][25], and replacing I d and I q in (1) and (2) by (6), we obtain the novel generator model…”

Section: Generator Modelmentioning

confidence: 99%

“…Remark 2: The PDE (28) is solved by (29) to obtain the objective dynamical equation (24). Here, as pointed out in Remark 1, we utilise the idea of the virtual control in the backstepping technology by which we will design the control law to force the error between the variable ξ and the virtual control j d to tend to zero.…”

Section: H ∞ Controller Designmentioning

confidence: 99%

H _∞ control of single‐machine infinite bus power systems with superconducting magnetic energy storage based on energy‐shaping and backstepping

Wan

Zhao

2013

IET Control Theory & Applications

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This article studies the H ∞ control problem for single-machine infinite bus power systems with superconducting magnetic energy storage (SMES) via simultaneous design of generator excitation control and SMES control. In the control system design, the exciter dynamics and unknown external disturbances are considered for practical implementation in power systems. A new synthesis framework is proposed to address the robust control problem of power systems with SMES. First, from the energy perspective, the interconnection and damping assignment (IDA) approach is applied to improve the transient performance of power systems. Second, by introducing the idea of virtual control in the design process, the authors obtain the solution of a partial differential equation that is a crucial point and cannot be obtained by using the traditional IDA method. Third, in order to enhance the robustness of the closedloop system, the authors study the H ∞ control design that is challenging and difficult for power systems considering the above mentioned practical considerations. In addition, the authors use a novel equivalent generator model to avoid using unmeasurable infinite bus voltage. Simulation results also show the effectiveness and advantage of the proposed controller.

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“…A single machine infinite bus (SMIB) system, shown in Fig. 2, qualitatively exhibits important characteristics of the behaviour of a multi-machine system; it is useful to describe the general concepts of power system stability and is relatively simple to study [31,32]. The SMIB system shown in Fig.…”

Section: System Description and Controllermentioning

confidence: 99%

Effect of intermittent voltage source converter faults on the overall performance of wind energy conversion system

Abdou

Abu-Siada

Pota

2013

International Journal of Sustainable Energy

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The doubly fed induction generator (DFIG) is interfaced to the AC network through voltage source converters (VSCs) which are considered as the core of the DFIG system. This paper investigates the impact of different intermittent VSC faults on the overall performance of a DFIG-based wind energy conversion system (WECS). The fault ride through (FRT) capability of the DFIG under various VSC faults is also investigated. Faults such as open circuit and short circuit across the switches, when they occur within the grid side converter (GSC) and rotor side converter (RSC), are considered and compared in this paper. Short circuit and open circuit across the DC-link capacitor are also considered in this study as common VSC problems. Simulation results indicate that the short circuit faults have a severe impact on the overall performance of the DFIG, especially when they occur within the GSC. This is attributed to the fact that the GSC directly regulates the point of common coupling (PCC) voltage. The open circuit faults have less impact on the performance of the DFIG-based WECS. A proper controller along with FACT device should be available to compensate the required active and reactive power during these faults. A protection technique is necessary to detect these faults in advance to protect the VSC switches and the machine winding from any catastrophic failure.

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A Nonlinear Voltage Regulator With One Tunable Parameter for Multimachine Power Systems

Cited by 22 publications

References 18 publications

Power System Stabilizers Design for Multimachine Power Systems Using Local Measurements

Power System Stabilizers Design for Multimachine Power Systems Using Local Measurements

H _∞ control of single‐machine infinite bus power systems with superconducting magnetic energy storage based on energy‐shaping and backstepping

Effect of intermittent voltage source converter faults on the overall performance of wind energy conversion system

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A Nonlinear Voltage Regulator With One Tunable Parameter for Multimachine Power Systems

Cited by 22 publications

References 18 publications

Power System Stabilizers Design for Multimachine Power Systems Using Local Measurements

Power System Stabilizers Design for Multimachine Power Systems Using Local Measurements

H ∞ control of single‐machine infinite bus power systems with superconducting magnetic energy storage based on energy‐shaping and backstepping

Effect of intermittent voltage source converter faults on the overall performance of wind energy conversion system

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Product

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H _∞ control of single‐machine infinite bus power systems with superconducting magnetic energy storage based on energy‐shaping and backstepping