Performance analysis of global synchronous pulsewidth modulation for distributed inverters

Xu, Tao; Gao, Feng; Duan, Wen; Wei, Ronghua

doi:10.1109/ecce.2015.7310567

Cited by 9 publications

(7 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Once inverter 2 receives the synchronous signals, Carrier 2 ' will change suddenly and Carrier 2 will change gradually to reach the optimal phase shift after t change as shown in Fig. 5 [4]. When communication channels operate normally, the change of φ PWM2 ' and φ PWM2 is shown in Fig.…”

Section: Principle and Realization Of Self-synchronization Operamentioning

confidence: 94%

“…The GSPWM could therefore be assumed in the applications with massive distributed inverters to reduce output filter or switching frequency of individual inverter meanwhile satisfy the output quality requirement at PCC. Reference [4] also proposed a method to dynamically adjust the switching sequence of inverters to attenuate the negative effect when one or more inverters cease or start over their operation. All of these analyses are based on the reliable communication channels.…”

Section: Introductionmentioning

confidence: 99%

“…1. Reference [4] deeply analyzes the performance of GSPWM including the current ripple analysis under steady state and its variation under transient state. The GSPWM could therefore be assumed in the applications with massive distributed inverters to reduce output filter or switching frequency of individual inverter meanwhile satisfy the output quality requirement at PCC.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Self-synchronization operation of global synchronous pulsewidth modulation with communication fault tolerant and simplified calculation capabilities

Gao

2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

Self Cite

View full text Add to dashboard Cite

The distributed inverters are generally integrated into power grid without switching sequence coordinated control capability since they are equipped with their own micro controllers to command the output quantities. The switching ripples of all distributed inverters will then be randomly accumulated at the point of common coupling. The recently proposed global synchronous pulsewidth modulation (GSPWM) method however can significantly attenuate the accumulated switching ripples by periodically coordinating the distributed inverters at low synchronization frequency. GSPWM can be applied to reduce filter or switching frequency of coordinated inverters under high reliable communication system. While to increase the system robustness, this paper deeply analyzes the performance of GSPWM when the communication channels fail, especially lose the synchronous signals. And then the selfsynchronization method is proposed to avoid the breakdown of GSPWM. Moreover, the self-synchronization operation could benefit to explore a simplified method to calculate the sending frequency of synchronous signals, which can greatly release the calculation burden. Finally, experimental results are presented to verify the performance of the proposed self-synchronization operation of GSWPM.

show abstract

Section: Principle and Realization Of Self-synchronization Operamentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Self-synchronization operation of global synchronous pulsewidth modulation with communication fault tolerant and simplified calculation capabilities

Gao

2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

Self Cite

View full text Add to dashboard Cite

show abstract

“…Content may change prior to final publication. Citation information: DOI 10.1109/TPEL.2020.2987079, IEEE Transactions on Power Electronics IEEE TRANSACTIONS ON POWER ELECTRONICS far, reference [19] has proposed a method to design the parallelconnected inverters by only considering N-1 (one inverter quits) and N+1 (one inverter restarts) operation. While, the principles and details of optimized design method for parallel-connected inverters need to be further improved.…”

mentioning

confidence: 99%

Optimized Design for AC Filter and Switching Frequency of Parallel-Connected Inverters With Global Synchronous Pulsewidth Modulation

Gao

Zhou

et al. 2020

IEEE Trans. Power Electron.

Self Cite

View full text Add to dashboard Cite

This paper proposes a new optimized design method for AC filter and switching frequency of parallelconnected inverters with global synchronous pulse width modulation (GSPWM) to improve the efficiency or reduce the cost. Being different from the traditional design methods that only focus on the individual inverter itself, the quantity of parallel-connected inverters and the operational principles of GSPWM are involved as the key considerations for designing the proper ac filter values and switching frequencies. In specific, the general principles and the realization details are comprehensively elaborated. Experimental results are presented to verify the proposed theoretical findings.

show abstract

“…Ref. [20] proposed the method to reduce the switching frequency and the filter size when using GSPWM. When calculating the harmonics of inverters controlled by DPWM, GSPWM will cost much time to calculate the harmonics of discontinuous modulation waveforms.…”

Section: Introductionmentioning

confidence: 99%

Global synchronous discontinuous pulse width modulation method with fast calculation capability for distributed three-phase inverters

Wei

Zhou

et al. 2016

J. Mod. Power Syst. Clean Energy

Self Cite

View full text Add to dashboard Cite

When multiple distributed converters are integrated, the high frequency harmonics will randomly accumulate at the point of common coupling (PCC). This paper proposes a new fast global synchronous discontinuous pulse width modulation (GSDPWM) method of threephase inverters to effectively attenuate the high frequency current harmonics at PCC. Firstly, the basic principle and the realization method of GSDPWM for three-phase inverters are explained, which can be employed for different modulation types. Then a fast calculation method, which can equally derive the minimized total harmonic distortion (THD) of total current, is proposed to release the calculation burden. Finally, MATLAB simulations and experimental results are presented to verify the performance of GSDPWM.

show abstract

Performance analysis of global synchronous pulsewidth modulation for distributed inverters

Cited by 9 publications

References 5 publications

Self-synchronization operation of global synchronous pulsewidth modulation with communication fault tolerant and simplified calculation capabilities

Self-synchronization operation of global synchronous pulsewidth modulation with communication fault tolerant and simplified calculation capabilities

Optimized Design for AC Filter and Switching Frequency of Parallel-Connected Inverters With Global Synchronous Pulsewidth Modulation

Global synchronous discontinuous pulse width modulation method with fast calculation capability for distributed three-phase inverters

Contact Info

Product

Resources

About