Control of series compensated induction motor using magnetic energy recovery switch

Isobe, Takanori; Wiik, J.A.; Kitahara, Tadayuki; Kato, Shuhei; Inoue, Kiyoshi

doi:10.1109/epe.2007.4417774

Cited by 8 publications

(7 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Paper [18] points out that the equivalent capacitance can theoretically be regulated from 0 to infinity by changing the firing angle. It has been employed to correct the power factor or to stabilize terminal voltage of the inductions generator [19]- [22].…”

Section: Magnetic Energy Recovery Switchmentioning

confidence: 99%

A Magnetic Energy Recovery Switch Based Terminal Voltage Regulator for the Three-Phase Self-Excited Induction Generators in Renewable Energy Systems

Wei¹,

Kang²,

Huang³

et al. 2015

Journal of Power Electronics

View full text Add to dashboard Cite

Distributed generation systems (DGSs) have been getting more and more attention in terms of renewable energy use and new generation technologies in the past decades. The self-excited induction generator (SEIG) occupies an important role in the area of energy conversion due to its low cost, robustness and simple control. Unlike synchronous generators, the SEIG has to absorb capacitive reactive power from the outer device aiming to stabilize the terminal voltage at load changes. This paper presents a novel static VAR compensator (SVC) called a magnetic energy recovery switch (MERS) to serve as a voltage controller in SEIG powered DGSs. In addition, many small scale SEIGs, instead of a single large one, are applied and devoted to promote the generation efficiency. To begin with, an expandable mathematic model based on a d-q equivalent circuit is created for parallel SEIGs. The control method of the MERS is further improved with the objective of broadening its operating range and restraining current harmonics by parameter optimization. A hybrid control strategy is developed by taking both of the stand-alone and grid-connected modes into consideration. Then simulation and experiments are carried out in the case of single and double SEIG(s) generation. Finally, the measurement results verify that the proposed DGS with SVC-MERS achieves a better stability and higher feasibility. The major advantages of the mentioned variable reactive power supplier, when compared to the STATCOM, include the adoption of a small DC capacitor, line frequency switching, simple control and less loss.

show abstract

Section: Magnetic Energy Recovery Switchmentioning

confidence: 99%

A Magnetic Energy Recovery Switch Based Terminal Voltage Regulator for the Three-Phase Self-Excited Induction Generators in Renewable Energy Systems

Wei¹,

Kang²,

Huang³

et al. 2015

Journal of Power Electronics

View full text Add to dashboard Cite

show abstract

“…Reference [2] has testify that the MERS circuit can be equivalent to a variable capacitor, with changing the shifting phase angle of the inner switches, whose capacitance can theoretically change from 0 to the infinite. The section plans to rebuild the mathematical model of the MERS with a simplified way, and clarify the working process of semiconductor switches in a specific cycle.…”

Section: A Magnetic Energy Recovery Switch (Mers)mentioning

confidence: 99%

“…Descriptions column Values L 1 The primary side inductance 100uH L 2 The secondary side inductance 100uH M…”

Section: Symbolsmentioning

confidence: 99%

See 1 more Smart Citation

Electric Vehicles wireless charging system compensation based on the Magnetic Energy Recovery Switch

Huang

Kang

Chen

et al. 2015

2015 IEEE PELS Workshop on Emerging Technologies: Wireless Power (2015 WoW)

View full text Add to dashboard Cite

A revised Electric Vehicle (EV) wireless charging system based on the Magnetic Energy Recovery Switch (MERS) is proposed in this paper. In order to achieve a better separation between the primary and secondary coils, bilateral compensated detachable transformer instead of the conventional coupling inductance is used in the system. It is clear that the mutual inductance of the detachable transformer is very sensitive to the relative position between the device on the EV and the device at the charging station, which causes some reactive power and harmonic currents. However, by the joint modulation of the frequency of the transmit circuit and the phase shifting angle of the introduced MERS circuit, the maximum efficiency can be maintained. The paper firstly describes the magnetic energy recovery switch circuit, and the mathematical model determines the magnetic energy recovery switch (MERS) circuit can be equivalent to a variable capacitor; Then puts forward the bilateral compensation strategy for the detachable transformer, in which the MERS circuits are introduced as the compensational capacitors, and mathematically proved the feasibility of the strategy; Next, by means of the above model, presents a method of PLL detection on the both sides of the phase errors between the voltages and the corresponding currents, to determine the magnitude of the phase shifting angles of the MERS circuits and the frequency of the inverter circuit; Finally, the proposed idea is validated by simulation results. Keywords-Electric Vehicle (EV), magnetic energy recovery switch (MERS), detachable transformer, PLL detectionI.

show abstract

“…In this paper, variable capacitance control is focused with a fixed switching frequency. The magnetic energy recovery switch (MERS) has been proved as a variable capacitor in reactive power compensation and power factor correction [20][21][22]. However, there is no relevant research in the high frequency applications.…”

Section: Introductionmentioning

confidence: 99%

Research on current‐type high frequency resonant power converter based on magnetic energy recovery switch

Cheng

Jiang

Chen

2022

IET Power Electronics

View full text Add to dashboard Cite

LCL resonant converters have been widely used to get a constant current output. This paper proposes an LCL resonant converter based on the magnetic energy recovery switch (MERS), which adjusts the output current of the converter by controlling the paralleled equivalent capacitance, as responding to the parameter errors or input voltage disturbance. Firstly, based on the equivalent model of the LCL resonant converter, the effect of variable capacitive impedance on the output current characteristics of the converter is analysed. Then the topological structure of MERS is introduced and its working principle as a controllable capacitive impedance controller is further explained. On this basis, the operating characteristics and soft switching characteristics of the proposed topology in each complete working cycle are analysed in detail. By controlling the phase shift angle between the output voltage of bridge and the fundamental component of MERS voltage, the equivalent capacitance of the MERS is changed, and the resonant frequency of the converter is accordingly adjusted to accurately compensate the output current against the input voltage disturbance. Finally, the effectiveness and feasibility of the MERS applied to the LCL resonant converter are verified by simulation and experiments. Besides, its operating characteristics are analysed and evaluated.

show abstract

Control of series compensated induction motor using magnetic energy recovery switch

Cited by 8 publications

References 4 publications

A Magnetic Energy Recovery Switch Based Terminal Voltage Regulator for the Three-Phase Self-Excited Induction Generators in Renewable Energy Systems

A Magnetic Energy Recovery Switch Based Terminal Voltage Regulator for the Three-Phase Self-Excited Induction Generators in Renewable Energy Systems

Electric Vehicles wireless charging system compensation based on the Magnetic Energy Recovery Switch

Research on current‐type high frequency resonant power converter based on magnetic energy recovery switch

Contact Info

Product

Resources

About