Passivity‐based control of the hybrid rectifier for medium and high‐power application

Abstract

This study proposes a practical passivity-based control (PBC) strategy of the hybrid rectifier based on Vienna and single switch three-phase boost (SSTPB) rectifiers. For medium and high application, the SSTPB rectifier operates at higher output power state with low frequency, the Vienna rectifier operates at power quality improvement state with high frequency, and the hybrid rectifier has the advantages of perfect sinusoidal input currents, unity power factor, high reliability, high efficiency and low cost. PBC is stable globally and has strong robustness to internal and external interference with less parameters and PBC of the hybrid rectifier has the advantages of less parameters, good dynamic characteristic, high current control precision and strong robustness. The detailed mathematical model based on Euler-Lagrange is built, the sixth harmonic current injection strategy is proposed, and the PBC controller is designed by damping injecting method in the study, and simulation results in SIMULINK are also given. At last, a down-sized hybrid rectifier prototype is built and the experimental results verify correctness and effectiveness of the proposed solution and analysis.

Hybrid Three-Phase Rectifiers with Active Power Factor Correction: A Systematic Review

“…To understand the principle of operation of the HTR, it is essential to analyze the operation through the current path and the power flow distributed between the rectifiers, since the current will pass through the two rectifiers. The explanation the principle of operation is based on the figures represented in Section 3.2.2, so it can be said that the input currents (I a , I b , I c ) are distributed over two paths, for rectifier 1 (I a1 , I b1 , I c1 ) and for rectifier 2 (I a2 , I b2 , I c2 ), and then after being rectified and processed by the respective converters, the two output currents (I o1 and I o2 , respectively) in DC are added in the DC bus, thus obtaining the current of output (I o ) of the HTR, since the two rectifiers are connected in parallel [2,6,13,[16][17][18]20,23,25,26,28,32,34,36,40]. In a specific way, we will analyze the operation by part, being for the structure of rectifier 1 and then for rectifier 2.…”

An Improved Three-Stages Cascading Passivity-Based Control of Grid-Connected LCL Converter in Unbalanced Weak Grid Condition

“…The passivity-based control (PBC), which was proposed by R. Ortega and M. Spong in 1989, can be stable globally in nonlinear system and has the advantages of simple design and easy implementation [19][20], and it has been used in power conversion system [21], rectifier [22][23], PV [20][24], STATCOM [25] and other grid-connected LCL converter [26] [27]. Obviously, all these studies promote electrical applications of PBC.…”

Dual‐passivity‐based control strategy of modular multilevel matrix converter

“…If the input u and output y of the system and the energy supply rate y T u are established, the system is strictly passive 26,27 …”

“…According to the theory of passivity‐based control, the strictly passive systems can adopt passivity‐based control and the control system is stable 26,27 …”

“…Based on the decoupling model of M3C under double αβ 0 transformation, this paper proposes a passivity‐based control strategy for the M3C input‐side and output‐side, 24‐27 that is, dual‐passivity‐based control (DPBC) strategy. Compared with the traditional PI control strategy, that is, dual‐PI control (DPIC) strategy, the passivity‐based controller designed by using the passivity‐based control theory can achieve the global stability of the system, no singular point, and so on 28 .…”