<scp>QPR</scp> and duty ratio feed‐forward control for vienna rectifier of <scp>HVDC</scp> supply system

Dang, Chaoliang; Tong, Xiangqian; Huang, Jingjing; Wang, Qian; Zhang, Hao

doi:10.1002/tee.22405

Cited by 7 publications

(4 citation statements)

References 20 publications

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“…In recent years, with the fast development of communications, electric vehicle (EV) charging station and computer industry, the safe and reliable operation of high‐voltage DC power supply system has become an important research topic all over the world. VIENNA rectifier is a three‐phase three‐level Boost‐type circuit which was first developed and proposed by Kolar in 1997. Specifically, compared with other three‐level bridge‐type topologies, the three‐phase three‐level Boost‐type VIENNA rectifier (Fig.…”

Section: Introductionmentioning

confidence: 99%

Discrete sliding mode control strategy for a three‐phase Boost‐type VIENNA rectifier with the CB‐PWM

Dang

Tong

Song

2020

IEEJ Transactions Elec Engng

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A three‐phase three‐level VIENNA rectifier has been widely used in the data center DC power supply and AC/DC hybrid power supply system with the advantages of without dead‐time, low switch voltage stress and small grid‐current harmonic. However, the performance of grid current strongly depends on the controller parameter, and the unreasonable controller parameter may deteriorate the grid current. To effectively improve the static and dynamic performance of grid current, a new kind of carrier‐based pulse width modulation scheme based on the double closed‐loop discrete sliding mode strategy is put forward. Further, a modified exponential reaching law is presented to effectively improve the shaking shock effect caused by the traditional sliding mode surface and the neutral voltage dc wave suppression strategy is then presented. To verify the correctness and effectiveness of the proposed sliding mode control strategy, a complete simulation model and experimental prototype platform under the digital control is established, the detailed theoretical analysis and design method of the proposed control strategy are presented. The simulation and experimental results show that the steady and the transient performance of the grid current with the proposed control strategy are effectively improved, and the neutral voltage in dc side is kept balanced at the same time. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Introductionmentioning

confidence: 99%

Discrete sliding mode control strategy for a three‐phase Boost‐type VIENNA rectifier with the CB‐PWM

Dang

Tong

Song

2020

IEEJ Transactions Elec Engng

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“…With the increasing application of renewable energy conversion technologies, the grid‐connected converter is widely used as the interface between the power generation system and utility grid. Therefore, pulse width modulation (PWM) rectifier plays a vital role in many applications requiring high performance and efficiency [1, 2]. At present, according to the output level, it can be divided into two‐level, three‐level and multiple‐level structures.…”

Section: Introductionmentioning

confidence: 99%

Cost function‐based modulation scheme of model predictive control for VIENNA rectifier

Dang

Tong

Song

et al. 2019

IET Power Electronics

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Finite control set model predictive control (FCS-MPC) has been widely used in the control of grid-connected converters with the advantages of fast dynamics, multi-objective control, and easy implement. However, the conventional FCS-MPC bears with variable switching frequency, high current ripple and computational burden. An improved current model predictive with the cost function-based modulation scheme (CFM-MPC) is proposed for a three-phase three-level VIENNA rectifier to improve the power quality. First, the mathematical model and voltage vector are given according to the principle of deadbeat control. Then, the voltage vector of different voltage vectors are selected according to the location of the voltage vector reference, and the switching action time of the selected are directly calculated by the inversely proportional with cost function value of the selected vectors. It remains the merits of both the conventional MPC and space vector pulse width modulation schemes to track the optimum voltage vector without increasing the computational burden. Finally, a comparative study with the proposed CFM-MPC and conventional FCS-MPC has been conducted to verify the superiority of the proposed scheme. The results show the proposed CFM-MPC has the advantages of lower power ripple, fixed switching frequency, lower total harmonic distortion and neutral point potential balance.

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“…The high‐voltage DC (HVDC) transmission system is used for transferring large amounts of power over long distances and connecting asynchronous power grids. Because of its lower losses and more flexible power control ability compared to the high‐voltage alternating current (HVAC) transmission system, HVDC transmission system is playing an important role in modern power systems and therefore attracts tremendous research attention .…”

Section: Introductionmentioning

confidence: 99%

A particular AC component protection scheme for bipolar HVDC transmission lines

Yang

Tai

Fan

et al. 2018

IEEJ Transactions Elec Engng

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The line protection methods for high-voltage direct current (HVDC) transmission system in engineering applications are poor in sensitivity and reliability. In this paper, we introduce a new notion of energy, namely a particular AC energy, based on which a particular AC component protection scheme is proposed. The scheme is comprised of start-up criterion, fault identification criterion, and faulty pole identification criterion. The start-up criterion is based on the fact that particular AC component measured at both terminals increases rapidly when a fault occurs. The particular AC energy calculated by particular AC component at both terminals behaves differently in the face of an internal or external fault, and this characteristic is applied to construct the fault identification criterion. The particular AC energy on the non-fault line is smaller than that on the faulty line, which can be used to establish the faulty pole identification criterion. Compared with other energy-based protections, the proposed method does not require data synchronization and is not affected by the distributed capacitive current of the transmission line. Comprehensive simulation experiments including real-time digital simulator (RTDS) tests indicate that this method is able to operate reliably under various fault conditions with satisfactory accuracy and high sensitivity.

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QPR and duty ratio feed‐forward control for vienna rectifier of HVDC supply system

Cited by 7 publications

References 20 publications

Discrete sliding mode control strategy for a three‐phase Boost‐type VIENNA rectifier with the CB‐PWM

Discrete sliding mode control strategy for a three‐phase Boost‐type VIENNA rectifier with the CB‐PWM

Cost function‐based modulation scheme of model predictive control for VIENNA rectifier

A particular AC component protection scheme for bipolar HVDC transmission lines

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