Ensuring Availability of a Large Adjustable-Speed Drive for Process Gas Compressor Application Rated 11 kV 15.5 MW (20 778 hp)

Endrejat, F.; Hanna, R.A.; Shultz, J.

doi:10.1109/tia.2010.2058082

Cited by 10 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The circulating currents consist of harmonics resulting in the deterioration of the system performance . In order to control the circulating currents and mitigate the harmonics, in , a method was proposed where under the balanced voltage condition, the negative‐sequence component of circulating currents in each arm rotates at double‐line frequency. Therefore, a control method was proposed in each arm by transforming a–c–b sequence with a double line‐frequency into a d–q sequence at the rotational reference frame.…”

Section: Various Topologies Of Vscmentioning

confidence: 99%

Power conversion in renewable energy systems: A review advances in wind and PV system

Kumar¹,

Kumar

2016

Int. J. Energy Res.

View full text Add to dashboard Cite

Summary Grid‐connected photo voltaic (PV) systems are being developed very fast and systems from a few kW to tenths of a MW are now in operation. As an important source of distributed generation (DS) the PV systems need to comply with a series of standard requirements in order to ensure the safety and the seamless transfer of the electrical energy to the grid. Multilevel voltage source converters (VSC) is a heart of the PV system and are emerging as an important power converter options for low, medium, and high‐power applications. These VSCs have bought numerous advantages, especially in renewable energy systems such as PV and wind energy systems. In this article, several topologies of VSCs, which brings together some concepts from traditional converters and multi‐level converters, are presented. Also, several control strategies for controlling current, voltage, active power and reactive power have also been reviewed. Various topologies with their technical aspects have been reviewed and the best suitable topology and control scheme for grid connected PV and wind energy systems has been suggested. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

Section: Various Topologies Of Vscmentioning

confidence: 99%

Power conversion in renewable energy systems: A review advances in wind and PV system

Kumar¹,

Kumar

2016

Int. J. Energy Res.

View full text Add to dashboard Cite

show abstract

“…To isolate the faulty power cells, bypass contactors [9] or bidirectional thyristors [8] are usually used to short-circuit the output terminals of these faulty power cells. After the faulty cells has been isolated, the numbers of normal cells in three phases are different.…”

Section: Introductionmentioning

confidence: 99%

Suppression of real power back flow of non-regenerative cascaded H-bridge inverters operating under faulty conditions

Sun

Xiao

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

View full text Add to dashboard Cite

Good fault-tolerant ability is one of the advantages of cascaded H-bridge (CHB) inverters. When the faulty cell is bypassed, it is necessary to inject zero-sequence (ZS) voltage into three-phase output voltages to balance the line-to-line voltages. Conventional methods injecting ZS voltage is aimed at maximizing the achievable amplitude of the output line-toline voltages. However, the injection of ZS voltage may lead to real power back flow in one or two phase. For CHB inverters which have no regeneration ability, the DC voltage will rise to an intolerable level. This paper analyzes the requirements for the ZS voltage to both achieve maximum output voltage and avoid real power back flow. Further, a method to suppress real power back flow by reducing the fundamental component in ZS voltage is proposed. Compared with conventional methods, the proposed method can allow the inverter to drive a load with lower power factor without leading real power back flow or sacrificing the voltage output capability. Thus the reliability of the CHB inverter is enhanced. Simulation results verify the validity and the advantage of the proposed method.

show abstract

LCI-fed wound-field synchronous motors: A technology status review and new development trends

Mohamadian

Khanzade

Castellan

et al. 2014

2014 AEIT Annual Conference - From Research to Industry: The Need for a More Effective Technology Transfer (AEIT)

View full text Add to dashboard Cite

Load-Commutated Inverters (LCIs) are today one of the main converter topologies used for very-high-power drive applications, although new topologies, based on PWM technology and employing IGBT or IGCT as power switches instead of SCR's, have been recently gaining attractiveness also for increasing power ratings. The paper presents an overview of today's LCI technology and its applications, highlighting its strengths and weaknesses. Furthermore, the most promising lines of development are drawn along which LCI drive technology is being improved to overcome its major drawbacks and maintain competitiveness with Voltage-Source-Inverter (VSI) based counterparts

show abstract

Ensuring Availability of a Large Adjustable-Speed Drive for Process Gas Compressor Application Rated 11 kV 15.5 MW (20 778 hp)

Cited by 10 publications

References 15 publications

Power conversion in renewable energy systems: A review advances in wind and PV system

Power conversion in renewable energy systems: A review advances in wind and PV system

Suppression of real power back flow of non-regenerative cascaded H-bridge inverters operating under faulty conditions

LCI-fed wound-field synchronous motors: A technology status review and new development trends

Contact Info

Product

Resources

About