Direct flux control – sensorless control method of PMSM for all speeds – basics and constraints

Müller, Tobias; See, Chan Hwang; Ghani, Arfan; Bati, Akram; Thiemann, Peter

doi:10.1049/el.2017.1772

Cited by 9 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So, the rotor position of the PMSM drive is estimated using stator voltage, current, and flux quantity of PMSM drive. In PMSM drive, the rotor position can be determined by flux linkage sensing [17], position dependence of inductances [18], current slope detection [19], zerocrossing back EMF, state observer-based [20], etc.…”

Section: Imentioning

confidence: 99%

See 1 more Smart Citation

Comparative Review of Brushless PMAC and PMDC Motor Drives

Pindoriya¹

2020

Preprint

View full text Add to dashboard Cite

<div>This paper presents a state of the art on brushless </div><div>Permanent Magnet Alternative Current (PMAC) and </div><div>Permanent Magnet Direct Current (PMDC) motor drives. The </div><div>brushless PMAC and PMDC motor drives are the latest choices </div><div>of researchers due to their high efficiency, silent operation, </div><div>compact size, high reliability, and low maintenance </div><div>requirements. These motors are preferred for numerous </div><div>applications. An in-depth analysis of PMAC and PMDC motor </div><div>drives have been discussed. The Permanent Magnets (PMs)</div><div>motor drives can be classified into two categories, first is PMAC </div><div>motor drives, i.e. PMSM and the second one is PMDC motor</div><div>drives, i.e. BLDC motors. There has been a long </div><div>misunderstanding between the two ways of driving and </div><div>controlling a motor with no windings on the rotor but only </div><div>PMs. In this paper given a comprehensive analysis of both </div><div>motor drives. So, beginner of the research scholars are easily </div><div>able to understand about brushless PMAC and PMDC motor </div><div>drives.</div>

show abstract

Section: Imentioning

confidence: 99%

“…T. Muller et al [17] presents a flux linkage sensing method to estimate the rotor and speed position of the PMSM drive. This method is dependent on the motor phase voltage equation.…”

Section: Imentioning

confidence: 99%

Comparative Review of Brushless PMAC and PMDC Motor Drives

Pindoriya¹

2020

Preprint

View full text Add to dashboard Cite

show abstract

“…However, other methods that exploit the saliency of the AC machine exist, and they have been not so extensively studied as the high-frequency injection methods. The latter is the case of the INFORM method [21,22] and the Direct Flux Control (DFC) method [23,24]. Although both methods send pulsating voltage signals to the machine in order to obtain the rotor position, the difference lies in the output signal used for the rotor position estimation.…”

Section: Introductionmentioning

confidence: 99%

Sensorless Field Oriented Control of Synchronous Machines for Low and High Speeds with Space Vector Modulation-Based Direct Flux Control Measurement Sequence

Iturra

Thiemann

2023

Electronics

View full text Add to dashboard Cite

During the last decade, field oriented control has often been implemented with space vector modulation due to its inherent advantages over other modulation techniques. On the other hand, direct flux control is a method that estimates the rotor electrical position of synchronous machines (e.g., permanent magnet synchronous motors) using only voltage measurements. In simple terms, direct flux control replaces position sensors by measuring the voltage difference between the star point of the synchronous machine and an artificial star point at particular instants during the switching pattern. Indeed, previous work dealt with direct flux control resorting exclusively to sinusoidal pulse width modulation and mostly in open-loop speed control schemes. This paper aims to present a space vector modulation-based direct flux control measurement sequence that can be used directly with field oriented control to perform sensorless speed control of synchronous machines. In contrast with previous publications, the direct flux control measurement sequence proposed in this paper not only extracts the direct flux control flux linkage signals with the same offset level but also obtains the phase currents needed for field oriented control without current ripple. In simple terms, the proposed direct flux control measurement sequence based on space vector modulation can be used with field oriented control to perform sensorless closed-loop speed control of synchronous machines. The sensorless speed control with the space vector modulation-based direct flux control sequence is validated for high speeds (80% of the nominal speed) and low speeds (6% of the nominal speed) using a high-fidelity four-pole synchronous machine’s simulation model implemented in ANSYS Simplorer and Maxwell.

show abstract

“…In recent research studies, the flux control method has been proposed to overcome such latency in protection system performance in the case of connecting large-scale steam units to the power system [5]. However, since this method reduces the active output power of the generator, it can potentially lead to transient system instability due to the imbalance between generation and consumption.…”

Section: Introductionmentioning

confidence: 99%

Improving Transient Stability of a Synchronous Generator Using UIPC with a Unified Control Scheme

et al. 2022

View full text Add to dashboard Cite

In this paper, the Unified Interphase Power Controller (UIPC) is utilized to protect the synchronous generator in case of faults occurring in the transmission system. The UIPC not only maintains the generator’s stability by keeping its load angle within safe operational limits but also prevents high-amplitude currents from flowing through the stator windings. This also allows for more loading on the generator without compromising the system’s stability. Moreover, utilization of the UIPC improves the LVRT capability of the generator by injecting reactive power at the faulted location. Additionally, a novel unified control scheme is proposed for the UIPC that enhances its performance by omitting the necessity of fault detection algorithms. To evaluate the performance of the proposed controller and the efficacy of the UIPC in protecting the synchronous generator under the faults, simulations have been conducted in a MATLAB/Simulink environment. A test grid was developed comprising a synchronous generator, transmission line model, UIPC, and an infinite grid representing the Point of Common Coupling (PCC), and three fault scenarios have been implemented in the transmission system. The comparative analysis of simulation results demonstrates the capability and efficacy of UIPC in isolating the synchronous generator from the faulted location, which in turn not only enhances transient stability of the generator, but also protects generator windings from detrimental faults currents. Moreover, according to the results, UIPC also contributes to recovering the voltage dip of the fault location via injecting reactive power.

show abstract

Direct flux control – sensorless control method of PMSM for all speeds – basics and constraints

Abstract: This document is the author's post-print version, incorporating any revisions agreed during the peer-review process. Some differences between the published version and this version may remain and you are advised to consult the published version if you wish to cite from it.

Cited by 9 publications

References 7 publications

Comparative Review of Brushless PMAC and PMDC Motor Drives

Comparative Review of Brushless PMAC and PMDC Motor Drives

Sensorless Field Oriented Control of Synchronous Machines for Low and High Speeds with Space Vector Modulation-Based Direct Flux Control Measurement Sequence

Improving Transient Stability of a Synchronous Generator Using UIPC with a Unified Control Scheme

Contact Info

Product

Resources

About