Fuzzy sliding mode observer with dual SOGI-FLL in sensorless control of PMSM drives

Ye, Shuaichen

doi:10.1016/j.isatra.2018.10.004

Cited by 44 publications

(23 citation statements)

References 54 publications

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“…Now, with (4) and (5), the equations presented in Table 2 can be used for obtaining the λ values for the cases of type-a and -b sags and for any depth ranging from 40% to 90%. In the case of ξ, the relationship is simpler and only two equations are needed, one for type-a and another for type-b (see Table 3).…”

Section: State S5 Down To Up Transientmentioning

confidence: 99%

“…There are several methods reported in the literature [2][3][4] for obtaining the grid voltage parameters. Among them, the Second-Order Generalized Integrator-Frequency-Locked Loop (SOGI-FLL) is popular due to its simplicity of implementation and low computational requirements [5,6]. The SOGI-FLL behaves well under grid normal conditions and even with some amount of harmonic distortion.…”

Section: Introductionmentioning

confidence: 99%

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New SOGI-FLL Grid Frequency Monitoring with a Finite State Machine Approach for Better Response in the Face of Voltage Sag and Swell Faults

et al. 2020

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The SOGI-FLL (Second-Order Generalized Integrator–Frequency-Locked Loop) is a well-known and simple adaptive filter that allows for estimating the parameters of grid voltage with a small computational burden. However, the SOGI-FLL has been shown to be especially sensitive to voltage sags and voltage swells, which deeply distort the estimated parameters, especially the frequency. This problem can be alleviated by simply using a saturation block at the Frequency-Locked Loop (FLL) output to limit the impact of distortion on the estimated frequency. Improving upon this straightforward approach, in this paper we propose the use of a finite state machine (FSM) for the definition of the different states of the SOGI-FLL frequency response during a voltage sag or swell fault. The FSM approach allows for applying different gains during the fault, enhancing the SOGI-FLL transient response. The performance of the FSM-based SOGI-FLL is evaluated by using simulation results, which show a better and faster response to these kinds of faults.

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Section: State S5 Down To Up Transientmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

New SOGI-FLL Grid Frequency Monitoring with a Finite State Machine Approach for Better Response in the Face of Voltage Sag and Swell Faults

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Furthermore, the RMS (Root Mean Square) current of the I L can also be estimated to the Equation (19).…”

Section: Sogi-qsg (Second-order Generalized Integrator-quadrature Signal Generator)mentioning

confidence: 99%

“…Figure 10 shows the block diagram of the SOGI-FLL. The transfer function is expressed in Equation ( 20) [18][19][20][21].…”

Section: Sogi-fll (Frequency Locked Loop)mentioning

confidence: 99%

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Frequency-Tracking Algorithm Based on SOGI-FLL for Wireless Power Transfer System to Operate ZPA Region

Kim

2020

Electronics

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The wireless power transfer (WPT) system has attracted attention for energy transmission without physical contact. However, a WPT system has low coupling condition because of a big air gap between transmitter and receiver coils. The low coupling condition has a high leakage inductance. To overcome this problem, we design a proposed system for WPT using series-series (S-S) topology of one resonant circuit. To obtain the higher efficiency power conversion of the WPT system, it has to operate the resonant frequency in the zero phase angle (ZPA) point even under mutual coefficient and load variation. Therefore, we propose the resonant frequency tracking algorithm to operate ZPA point based on the second order generalized integrator-frequency locked loop (SOGI-FLL) method. This proposed frequency-tracking algorithm can estimate ZPA point by changing switching frequency. We can reduce the switching loss with this proposed algorithm and improve the low conversion efficiency of the WPT system. The performance of the proposed frequency-tracking algorithm is automatically verified through various coupling coefficients and the load variation.

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Improved Federal Test Procedure (FTP75) driving cycle performance for PMSM‐fed hybrid electric vehicles using artificial neural network

Kakodia,

Dyanamina

2023

Circuit Theory & Apps

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SummaryThe sensorless speed control of permanent magnet synchronous motor (PMSM) is gaining popularity in hybrid electric vehicle (HEV) applications leading to its enhanced safety, reliability, and cost savings. Speed control using vector control for PMSM‐fed HEV requires the speed encoder. When the speed sensor information fails, the inverter must ensure power delivery to the PMSM continuously by estimating the speed; this mode of operation is referred as limp‐home mode in HEV. In this paper, a speed sensorless scheme has been proposed for PMSM‐based HEV during limp‐home mode operation. This paper presents a model reference adaptive system (MRAS) speed estimator based on an adaptive neural network controller (NNC) for speed estimation of PMSM. In the HEV application, in case of speed/position encoder failure, the speed of the PMSM can be estimated by stator flux using stator current.The proposed method employs stator currents in the reference model to eliminate the DC drift problem. Furthermore, the NNC is employed in the adaptation mechanism to improve the Federal Test Procedure (FTP75) driving cycle performance. The performance of the proposed control scheme has been validated with dSPACE 1104 R & D rapid development controller using vector control for the PMSM during variable speed and torque, including the zero‐speed applications

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Fuzzy sliding mode observer with dual SOGI-FLL in sensorless control of PMSM drives

Cited by 44 publications

References 54 publications

New SOGI-FLL Grid Frequency Monitoring with a Finite State Machine Approach for Better Response in the Face of Voltage Sag and Swell Faults

New SOGI-FLL Grid Frequency Monitoring with a Finite State Machine Approach for Better Response in the Face of Voltage Sag and Swell Faults

Frequency-Tracking Algorithm Based on SOGI-FLL for Wireless Power Transfer System to Operate ZPA Region

Improved Federal Test Procedure (FTP75) driving cycle performance for PMSM‐fed hybrid electric vehicles using artificial neural network

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