Design of D-STATCOM for voltage regulation in Microgrids

Microgrid became one of the key spot in research on distributed energy systems. Since the definition of the microgrid is paradigm of the first time, investigation in this area is growing continuously and there are numerous research projects in this moment all over the world. The increased infiltration of nonlinear loads and power electronic interfaced distribution generation system creates power quality issues in the distributed power system. In this paper, a comprehensive survey on microgrid to improve the power quality parameters is taken as the main objective. Furthermore, the detailed investigations are explored in this paper for the enhancement of power quality issues with the help of an optimization technique, filters, controllers, FACTS devices, compensators, and battery storage.

show abstract

“…In this section, the authors Lee et al [24,25] deliberated about voltage quality enrichment using FACTS devices.…”

Section: Facts Devices In Power Quality Improvementmentioning

confidence: 99%

“…A new method for the mitigation of voltage variations by using the D-STATCOM was deliberated by Lee et al [24,25]. The D-STATCOM works as distinct conductances of positive sequence and negative sequence at the fundamental frequency.…”

Section: Facts Devices In Power Quality Improvementmentioning

confidence: 99%

Survey on Microgrid: Power Quality Improvement Techniques

Natesan

Ajithan²,

Palani³

et al. 2014

ISRN Renewable Energy

View full text Add to dashboard Cite

show abstract

“…Compensating voltage fluctuations in distributed generation systems by a D-STATCOM was presented in [26]. In this paper, we present extended simulations and discussions as well as experimental verification.…”

Section: Introductionmentioning

confidence: 97%

D-STATCOM With Positive-Sequence Admittance and Negative-Sequence Conductance to Mitigate Voltage Fluctuations in High-Level Penetration of Distributed-Generation Systems

Lee

Chan

2013

IEEE Trans. Ind. Electron.

Self Cite

193

View full text Add to dashboard Cite

Voltage fluctuations resulting from variable output power of renewable energy sources are strictly challenging power quality in distributed generation systems. This paper presents a control method for Distributed-STATCOM (D-STATCOM) to alleviate variation of both positive-and negative-sequence voltages. The D-STATCOM simultaneously operates as fundamental positive-sequence admittance and fundamental negativesequence conductance to restore the positive-sequence voltage to the nominal value as well as reduce the negative-sequence voltage to an allowable level. Both admittance and conductance are dynamically tuned to improve voltage-regulation performances in response to load changes and power variation of renewable sources. A proportional-resonant current regulator with selectively harmonic compensation is realized to control the fundamental current of the D-STATCOM as well as reduce the harmonic current, which could be an advantage in practical applications due to high voltage distortion in low-voltage Microgrids. Voltage-regulation performances are discussed for different D-STATCOM location as well as different D-STATCOM current. Computer simulations and laboratory tests validate effectiveness.

show abstract

“…The reactive power to be compensated in each phase of the three-phase grid is often different, i.e., asymmetric, so the compensator has to be adapted to asymmetric reactive power compensation [12,13]. In such a case, the three-phase inverter must be able to supply to each phase of the grid the voltage with independently controlled amplitude.…”

Section: Introductionmentioning

confidence: 99%

Cascaded Multilevel Inverter-Based Asymmetric Static Synchronous Compensator of Reactive Power

et al. 2022

View full text Add to dashboard Cite

The topology of the static synchronous compensator of reactive power for a low-voltage three-phase utility grid capable of asymmetric reactive power compensation in grid phases has been proposed and analysed. It is implemented using separate, independent cascaded H-bridge multilevel inverters for each phase. Every inverter includes two H-bridge cascades. The first cascade operating at grid frequency is implemented using thyristors, and the second one—operating at high frequency is based on the high-speed MOSFET transistors. The investigation shows that the proposed compensator is able to compensate the reactive power in a low-voltage three-phase grid when phases are loaded by highly asymmetrical reactive loads and provides up to three times lower power losses in the compensator as compared with the situation when the compensator is based on the conventional three-level inverters implemented using IGBT transistors.

show abstract

Design of D-STATCOM for voltage regulation in Microgrids

Cited by 17 publications

References 15 publications

Survey on Microgrid: Power Quality Improvement Techniques

Survey on Microgrid: Power Quality Improvement Techniques

D-STATCOM With Positive-Sequence Admittance and Negative-Sequence Conductance to Mitigate Voltage Fluctuations in High-Level Penetration of Distributed-Generation Systems

Cascaded Multilevel Inverter-Based Asymmetric Static Synchronous Compensator of Reactive Power

Contact Info

Product

Resources

About