A review of mitigation methods for overvoltage in long-cable-fed PWM AC drives

He, Jiangbiao; Sizov, Gennadi Y.; Zhang, Peng; Demerdash, Nabeel A. O.

doi:10.1109/ecce.2011.6064054

Cited by 50 publications

(37 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, fast switching speeds of IGBT inverter introduces voltage surge due to high dv/dt at the inverter output and load terminals. This is due to the impedance mismatch between the load and transmission cables [3], [4]. If the load impedance is greater than the line surge impedance, then voltage is reflected back from the load end to the inverter.…”

Section: Introductionmentioning

confidence: 99%

“…If the load impedance is greater than the line surge impedance, then voltage is reflected back from the load end to the inverter. Successive reflections from the load side cause voltage at the receiving end to be much different, and in some cases the voltage at the load end can become two times the rated inverter output voltage [4]- [6]. Increase in the line voltage, above the nominal value, causes gradual degradation of cables and often causes premature failure of sensitive loads such as AC motors.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impacts of voltage surge and resonance on a grid connected variable speed wind turbine and their remedial measures

Rafique

Haque

Mahmud

2015

2015 IEEE Power &Amp; Energy Society General Meeting

View full text Add to dashboard Cite

The voltage surge due to fast switching insulated gate bipolar transistor (IGBT) and resonance can introduce voltage surge and distort the inverter output voltage/current waveforms. This may cause premature failure to sensitive loads and introduce harmonics in the grid voltage/current waveforms. This paper investigates the impacts of voltage surge and resonance on power electronic converter-fed grid-connected wind farms and suggests remedial measures to mitigate those adverse impacts are suggested. To investigate the impacts of voltage surge and resonance, a simulation model for the grid-connected variable speed wind turbine is developed using Matlab/SimpowerSystems, which include wind turbine, power converters with associated controllers, local load and the grid. An LC filter is designed and implemented to mitigate the impacts of voltage surge and resonance. Results show that the proposed filter can improve the inverter output voltage/current waveforms significantly and mitigate the impacts of voltage surge and resonance.Index Terms-Filter, harmonic resonance, variable speed wind turbine and voltage Surge.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impacts of voltage surge and resonance on a grid connected variable speed wind turbine and their remedial measures

Rafique

Haque

Mahmud

2015

2015 IEEE Power &Amp; Energy Society General Meeting

View full text Add to dashboard Cite

show abstract

“…Typical passive filters, such as RC and RLC filters, have been proposed to be installed either at the motor Manuscript terminal [15], [16] or on the inverter side [1], [5], and the influence of long cable is also considered [15]. Akagi and Tamura [5] proposed a passive EMI filter where three-phase stator windings are used as a part of the passive EMI filter.…”

Section: Introductionmentioning

confidence: 99%

A Novel Filter Topology With Active Motor CM Impedance Regulator in PWM ASD System

Chen

Yang

Xue

et al. 2014

IEEE Trans. Ind. Electron.

View full text Add to dashboard Cite

This paper presents a novel hybrid output filter topology for the inverter-motor system. It is shown that the proposed filter drastically reduces the common mode (CM) voltage at the motor terminals. The proposed filter is composed of a conventional LC filter cascaded with an active motor CM impedance regulator. The active circuit, utilizing an integrated high-voltage op-amp, is very efficient in decreasing the motor CM equivalent capacitance, as well as damping the high common voltage on the motor terminal. Therefore, the motor impedance is also used as part of the filter, and the common voltage can be eliminated dynamically in the active impedance regulator by feedback control. Furthermore, the size of the passive filter can be reduced to a large extent. Experimental verification of the filter topology is provided with a laboratory system consisting of a 380-V inverter and a 0.37-kW induction motor.Index Terms-Active filter, common mode voltage (CMV), inverter, passive filter.

show abstract

“…In adjustable speed drives the high dV/dt will be applied on the motor terminals. High dV/dt can lead to motor terminal overvoltage and non-uniform voltage distribution in the windings causing insulation breakdown [2]- [4]. It can also lead to severe common mode current, bearing current and EMI problems, which can potentially lead to motor and drive failure [5]- [8].…”

Section: Introductionmentioning

confidence: 99%

“…The resonant circuit will in most cases be excited by the switching frequency and its harmonics. The filter must therefore be damped by resistors or clamped to the DC rails by diodes [4]. Both of these solutions will cause losses in the filter and thereby in the total system.…”

Section: Introductionmentioning

confidence: 99%

LC filter design for wide band gap device based adjustable speed drives

Vadstrup

Wang

Blaabjerg

2014

2014 International Power Electronics and Application Conference and Exposition

View full text Add to dashboard Cite

This paper presents a simple design procedure for LC filters used in wide band gap device based adjustable speed drives. Wide band gap devices offer fast turn-on and turn-off times, thus producing high dV/dt into the motor terminals. The high dV/dt can be harmful for the motor windings and bearings and must therefore be reduced. This may be accomplished by a sine LC filter with DC link feedback, which reduces both the differential mode and common mode dV/dt. Wide band gap devices are capable of switching at frequencies much higher than traditional Si based devices. This makes it possible to design the LC filter with a higher cut off frequency and without damping resistors. The selection of inductance and capacitance is chosen based on capacitor voltage ripple and current ripple. The filter adds a base load to the inverter, which increases the inverter losses. It is shown how the modulation index affects the capacitor capacitor and the inverter current.

show abstract

A review of mitigation methods for overvoltage in long-cable-fed PWM AC drives

Cited by 50 publications

References 19 publications

Impacts of voltage surge and resonance on a grid connected variable speed wind turbine and their remedial measures

Impacts of voltage surge and resonance on a grid connected variable speed wind turbine and their remedial measures

A Novel Filter Topology With Active Motor CM Impedance Regulator in PWM ASD System

LC filter design for wide band gap device based adjustable speed drives

Contact Info

Product

Resources

About