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This paper presents an approach of sparse matrix converter (SMC) using Z-source network. The SMC is implemented by connecting a controllable rectifier and the traditional inverter through a Z-source network. The Z-source can produce any desired output voltage by controlling the shoot-through time. Compare to the traditional three-phase SMC, the three-phase Z-source SMC has the same number of switches,...
This paper proposes a novel control method of an indirect matrix converter to reduce the switching loss of inverter stage and to reduce the junction temperature at the low output frequency operation. The proposed control method achieves the zero-voltage switching (ZVS) operation in the inverter stage instead of the rectifier stage as in the conventional method. As a result, this method reduces the...
Matrix converter double space vector modulation strategy the need for sine, arctangent function calculation and look-up table, the calculation is more complicated, this article on the matrix converter using virtual rectifier switching function method, and the use of the average virtual inverter voltage method, respectively, derived from the virtual rectifier and inverter virtual reference voltage...
Multi-drive systems can be used in situations where several motors are mechanically connected. Such systems have applications in both industrial and aerospace applications, where they can be used to provide system redundancy. In conventional systems the power converter for the motor drive is based on a rectifier and inverter, leading to the requirement for large passive components such as DC-link...
High Power telecommunication power supply systems consist of a three-phase switch mode rectifier followed by a DC/DC converter to supply loads at 48 VDC. These rectifiers draw significant harmonic currents from the utility, resulting in poor input power factor with high total harmonic distortion (THD). In this paper, a DC power supply based on matrix converter with reduced number of switches is proposed...
In this paper, in order to simplify the control of indirect matrix converter (IMC) and ensure the reliability of it, the theory of finite state machine (FSM) is employed. Essentially, power electronics system consists of limited amount of states, so FSM can be introduced to the design of power electronics control system. The topology of IMC is made up of two stages: rectifier stage and inverter stage...
This paper presents a strategy of matrix converter driving three-phase brushless DC motor (BLDCM) with trapezoidal back electromotive force. The matrix converter is described as an equivalent circuit combining virtual rectifier stage and virtual inverter stage. Input current space vector modulation and 120deg conduction mode are employed in these two stages respectively. An important part of this...
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