Design and Implementation of Sensorless Capacitor Voltage Balancing Control for Three-Level Boosting PFC

Chen, Hung-Chi; Liao, Jhen-Yu

doi:10.1109/tpel.2013.2279718

Cited by 31 publications

(13 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the TLB converter, two active switches (S 1 and S 2 ) are used as shown in Figs. 7.1 to 7.3 and consequently 4 (2 number of active switches = 2 2 ) modes are available (00, 01, 10, 11) [118,[296][297][298]. The increase in the operating modes and thus switching states will lead to an additional control freedom to charge and discharge the dc-link capacitors independently.…”

Section: Three-level Boost Converter Modelmentioning

confidence: 99%

Predictive control of multilevel converters for megawatt wind energy conversion systems

Yaramasu¹

2021

Preprint

View full text Add to dashboard Cite

This dissertation proposes two novel medium voltage (MV) multilevel converter configurations for use with permanent magnet synchronous generator (PMSG) based megawatt (MW) wind energy conversion systems (WECS). The classical control techniques, based on linear PI regulators and low band-width modulation, present several technical issues during lower switching frequency operation. To overcome these issues, a high performance finite control-set model predictive control (FCS-MPC) strategy is proposed to control the power converters employed in the MW-PMSG-WECS. The proposed three-level and four-level converters combine the advantages of proven wind turbine technologies, such as low-cost generator-side passive converters, and efficient gridside multilevel converters. The intermediate dc-dc multilevel converters ensure balancing of the capacitor voltages during all operating conditions. With this feature, the grid-side multilevel converters produce better grid current waveforms compared to the back-to-back connected converters. A generalized approach for the predictive control of an n-level diode-clamped converter was investigated. The FCS-MPC strategy for current control and decoupled active/reactive power regulation of grid-connected multilevel converters was also analyzed. The major WECS requirements such as maximum power point tracking, balancing of dc-link capacitor voltages, switching frequency minimization, common-mode voltage mitigation, regulation of net dc-bus voltage, and grid reactive power control have been modeled in terms of power converter switching states. These control objectives have been accomplished during each sampling interval by selecting the switching states which minimize the generator- and grid-side cost functions. Issues related to the weighting factors selection, control delay compensation, accurate extrapolation of references, control of variable switching frequency nature, prediction of variables over two samples with reduced computational burden, and robustness analysis, are also addressed in this dissertation. To keep the dc-bus voltage constant during low voltage ride-through operation, predictive control scheme is proposed for the power converters while storing surplus energy in the turbine-generator rotor inertia. The generation and exchange of reference control variables during symmetrical grid voltage dips is suggested to meet the grid code requirements. The proposed solution is efficient as no energy is dissipated in the dc-link crowbar. The simulation and experimental results validate the proposed MV converters and predictive control schemes.

show abstract

Section: Three-level Boost Converter Modelmentioning

confidence: 99%

Predictive control of multilevel converters for megawatt wind energy conversion systems

Yaramasu¹

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Hơn nữa, đặc điểm 3 bậc xuất hiện trong quá trình đóng ngắt sẽ giúp giảm độ méo dạng điện áp và dòng điện phía ngõ vào; đồng thời sự giảm mức độ thay đổi dV/dt của điện áp tác dụng giảm nhiễu EMC. Bộ biến đổi 1 pha-3 pha 3 bậc đã được nghiên cứu và công bố bởi nhiều nhóm tác giả khác nhau [1][2][3][4][5]. Trong bài báo này, nọi dung nghiên cứu muốn áp dụng kỹ thuật điều chế PWM triệt tiêu điện áp common mode cho phần nghịch lưu 3 bậc NPC ngõ ra để cấp cho động cơ; điều này sẽ giúp giảm hiệu ứng common mode đối với áp dụng tải động cơ AC 3 pha.…”

Section: Phần Giới Thiệuunclassified

01 Thực nghiệm điều khiển bộ biến đổi AC-DC-AC một pha-ba pha 3 bậc dùng DSP TMS320F28335

Nho¹,

Trường²,

Thiên³

et al. 2016

Tuyển Tập Công Trình HNKH Toàn Quốc Lần Thứ 3 Về Điều Khiển &Amp; Tự Động Hoá VCCA - 2015

View full text Add to dashboard Cite

Hội nghị toàn quốc lần thứ 3 về Điều khiển và Tự động hoá - VCCA-2015 VCCA-2015 01 Thực nghiệm điều khiển bộ biến đổi AC-DC-AC một pha-ba pha 3 bậc dùng DSP TMS320F28335 Tóm tắtBài báo trình bày kỹ thuật điều khiển bộ biến đổi AC-DC-AC 3 bậc sử dụng kit DSP TMS320F28335. Bài báo phân tích điều khiển bộ biến đổi 1 pha AC-DC 3 bậc đạt hệ số công suất bằng 1 và duy trì điện áp phía DC cân bằng và không đổi. Để đạt điện áp AC ngõ ra 3 pha, bộ biến đổi 3 bậc diode kẹp (Neutral Point Clamped inverter) được điều khiển dùng kỹ thuật PWM sóng mang. Tính đúng đắn của phân tích điều khiển bộ biến đổi 1 pha-3 pha theo công nghệ biến đổi 3 bậc được chứng minh bằng mô phỏng và thực nghiệm bằng ứng dụng kỹ thuật lập trình nhúng kit TMS320F28335 trên phần mềm PSIM. . Từ khóa: Bộ biến đổi một pha -ba pha; Công nghệ 3 bậc; Thực nghiệm dùng DSP TMS320F28335Abstract: This paper presents PWM control of a single phase -to-three phase converter using DSP TMS320F28335. The converter consists of singlephase 3-level PFC boost converter and 3-level Neutral Point clamped inverter. The article presents the control of single phase AC-DC PFC converter to obtain unit power factor and balancing DC voltages. To achieve 3-phase AC output voltages, 3-level diode clamp inverter is controlled using carrier based PWM technique. A conventional PWM control and eliminated common mode PWM control have been implemented. The single-phase to three phase converter control have been verified by experiment with application of embedded software PSIM for kit TMS320F28335 PSIM.

show abstract

“…Pipeline circuit and register is used to store the intermediate results and also uses the capacitance of input of different blocks [6]. Two capacitor voltages may be different due to their mismatched equivalent series resistance (ESR), their mismatched capacitance and the mismatched conducting time of the corresponding switches [7]. Low…”

Section: Lit Erat Ure Re Viewmentioning

confidence: 99%

Capacitance scaling based energy efficient FIR filter for digital signal processing

Pandey

Kumar

Das

et al. 2014

2014 International Conference on Reliability Optimization and Information Technology (ICROIT)

View full text Add to dashboard Cite

In this work, we are implementing FIR Gaussian low pass filter using DSP slice available in 28nm Kintex-7 FPGA. In order to make energy efficient filter, we are using capacitance scaling. During capacitance scaling, we observe that there is no change in clock power, logic power, signal power and DSP power.But, there is significant reduction in lOs power, leakage power and total power of FIR filter on 28nm Kintex-7 FPGA. There is approx 44.74% reduction in lOs power when FIR filter operating frequency is SGHz, SOGHz, SOOGHz and lTHz and capacitance is scaled down from 2SpF to SpF. There is approx 87.6S% reduction in leakage power when FIR filter operating frequency is from SOOGHz to SGHz. There is approx 99 .S1 % reduction in leakage power when FIR filter operating frequency is from 1 THz to SGHz.

show abstract

Design and Implementation of Sensorless Capacitor Voltage Balancing Control for Three-Level Boosting PFC

Cited by 31 publications

References 21 publications

Predictive control of multilevel converters for megawatt wind energy conversion systems

Predictive control of multilevel converters for megawatt wind energy conversion systems

01 Thực nghiệm điều khiển bộ biến đổi AC-DC-AC một pha-ba pha 3 bậc dùng DSP TMS320F28335

Capacitance scaling based energy efficient FIR filter for digital signal processing

Contact Info

Product

Resources

About