Analysis of the Control System for a Soft Starter of an Induction Motor Based on a Multi-Zone AC Voltage Converter

Kosykh, Evgeniy A.; Udovichenko, Aleksey V.; Lopatkin, Nikolay N.; Zinoviev, Gennady S.; Grishanov, Evgenii; Sarakhanova, Regina

doi:10.3390/electronics12010056

Cited by 6 publications

(4 citation statements)

References 35 publications

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“…Table 4 shows the simulation results, as well as the level of the ripple coefficient (K p ). The presence of an active filter in the charging and rectifying device allowed for reducing voltage ripples up to 6 times, which also allowed for reducing the number of filter capacitors at the output of the rectifier of the charging and rectifying device from 6 units, 6800 µF each, to 3 units [78].…”

Section: Experiments Resultsmentioning

confidence: 99%

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Analysis of Novel Energy-Efficient Converters to Ensure the Required Quality of Electrical Energy

Udovichenko,

Grishanov,

Kosykh

et al. 2023

Symmetry

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This article proposes several solutions for the use of novel AC voltage regulators as electrical energy quality conditioners and for the use of a half-bridge voltage inverter circuit as an active filter. This study was carried out with a real object, and more attention was paid to it. Structural models of electrical energy quality assurance systems, the calculation of control system elements and experimental results are presented. In particular, the use of a half-bridge voltage inverter circuit was considered as a replacement for the passive filter of the battery charger and rectifier device. AC voltage regulators are also used as compensators for higher-current harmonics, namely active filters and reactive power, voltage drop, voltage unbalance and flicker effect compensators. Block diagrams of power quality conditioners are presented, control algorithms are developed and the results of the current high-frequency harmonics compensation, reactive power and signal balancing are presented. The results of an active filter experiment based on the NRT 160.220 charge-rectifier device circuit showed a reduction in ripple of up to 1% with smaller dimensions compared to a passive filter. The control characteristics and external characteristics of the regulators are removed. The dependences of the current THD factor and the power factor are presented depending on the modulation depth for AC voltage regulator circuits used as power quality conditioners.

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Section: Experiments Resultsmentioning

confidence: 99%

“…A multi-zone AC voltage regulator was proposed [78], the main function of which was to soft start an induction motor. This solution has been adapted to the possibility of compensating reactive power in the input signal.…”

Section: Reactive Power Compensator Based On An Ac Voltage Regulatormentioning

confidence: 99%

Analysis of Novel Energy-Efficient Converters to Ensure the Required Quality of Electrical Energy

Udovichenko,

Grishanov,

Kosykh

et al. 2023

Symmetry

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“…Voltage waveforms of a simple circuit of a buck-boost AC voltage regulator are shown in Figure 38. To construct a mathematical model of a regulator with a switched quasi-impedance of the power supply, a direct method of calculating the ADE was used [34].…”

Section: Calculation and Modeling Of Ac Voltage Regulators With One C...mentioning

confidence: 99%

Review and Analysis of Energy-Efficient AC Voltage Regulators

Udovichenko,

Grishanov,

Kosykh

et al. 2023

Preprint

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The formation of the required AC voltage level is currently one of the most important problems. An unstable voltage level can lead to the failure of domestic and industrial equipment, also to the appearance of a lighting equipment flicker effect, which can adversely affect the operating mode. In this regard, the development of AC voltage regulators that perform the function of stabilizers has become relevant. In turn, new topologies should be energy efficient and reliable, this can be achieved by reducing the number of semiconductor elements, which in turn will reduce losses and increase efficiency. In addition to voltage stabilization, AC voltage regulators have found application as soft-start devices for asynchronous motors, and have become competitors to frequency converters. The power level can vary from units to tens of kilowatts where such devices can be used. This paper provides a review of AC voltage regulators, which can be used both as soft starters and AC voltage stabilizers. The analysis of the circuits was carried out and the efficiency was evaluated through their total harmonic distortions (THD), power factor and efficiency coefficient. Experiments were also performed for a number of circuits, where their operating modes were evaluated. Eventually, all circuits were divided into full number of switches with two or more AC switches per phase, with a reduced number of switches, where one AC switch per phase and with low number of switches – with one complementary pair of AC switches for all three phases.

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“…Consequently, it can be inferred that almost 53% of the entire electrical energy consumption is accounted for by this type of motor. Also, approximately 70% of machine is used as induction motors for small power (<10 kW) [1][2][3]. Accordingly, the tendency is to concentrate the energy optimization studies on low-power IMs since the losses in these motors are of a value significant with their nominal power.…”

Section: Introductionmentioning

confidence: 99%

Extended Kalman Filter design for sensorless sliding mode predictive control of induction motors without weighting factor: An experimental investigation

Chebaani,

Mahmoud,

Tazay

et al. 2023

PLoS ONE

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Due to their simplicity, cheapness, and ease of maintenance, induction motors (IMs) are the most widely used motors in the industry. However, if they are not properly controlled, the load torque and motor speed will fluctuate in an unsatisfactory fashion. To effectively control the load torque and speed of these IMs, it is necessary to use specialized drives. The entire system (IMs + Drives) will experience uncertainty, nonlinearities, and disruptions, which calls for an outstanding performance control structure. The sensorless sliding mode predictive torque control (SSM-PTC) for both AC-DC converter and DC-AC inverter, which are utilized for feeding the IM, is investigated in this work. The AC-DC converter is controlled using the SSM-PTC method in order to follow the DC-link reference voltage throughout any changes in the operating point of the IM. While the DC-AC inverter is controlled using a sensorless predictive power control (SPPC). Within a unity power factor, this SPPC regulates the reactive power flow between the motor and the supply to account for the undesirable harmonic components of the grid current. In addition, an experimental performance improvement of SSM-PTC of IM supplied by a 5-leg AC-DC-AC power converter using extended Kalman filter (EKF) without weighting factor (WF) is also studied in this work. Design and implantation of the suggested control systems are performed using a dSPACE 1104 card. The experimental results of the proposed converter control demonstrate that the suggested approach effectively regulated the DC link, reducing load torque and speed fluctuations. In the context of inverter control, a prompt active power response yields a motor current waveform that resembles a sinusoidal pattern, exhibiting minimal levels of harmonic distortion.

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Analysis of the Control System for a Soft Starter of an Induction Motor Based on a Multi-Zone AC Voltage Converter

Cited by 6 publications

References 35 publications

Analysis of Novel Energy-Efficient Converters to Ensure the Required Quality of Electrical Energy

Analysis of Novel Energy-Efficient Converters to Ensure the Required Quality of Electrical Energy

Review and Analysis of Energy-Efficient AC Voltage Regulators

Extended Kalman Filter design for sensorless sliding mode predictive control of induction motors without weighting factor: An experimental investigation

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