EPE Association: EPE 2019 - LS4c: Standard and Advanced Control Techniques for Power Converters (part II)

EPE 2019 - LS4c: Standard and Advanced Control Techniques for Power Converters (part II)
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2019 ECCE Europe - Conference > EPE 2019 - Topic 03: Measurement and Control > EPE 2019 - LS4c: Standard and Advanced Control Techniques for Power Converters (part II)

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   Discrete Active Damping Control Design for LCL-Resonances Using Observer
By Michael SCHÜTT [View]
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Abstract: This paper presents modeling techniques addressing the implementation-space issues for the control of inverters connected to LCL-topologies. These discrete models include the computational delay and enable the design of robust observers. These observers grant access to state information such as the capacitor current and consequently facilitate active damping and delay compensation.

   Model Based Junction Temperature Control Using the Gate Driver Voltage as a Correction Variable
By Johannes RUTHARDT [View]
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Abstract: Junction temperature swings, caused by load alternation in power electronics, lead to a reduced lifetime of power semiconductor devices. When temperature swings occur, the different material layers of the power semiconductor device expand in a different way because of their different coefficient of thermal expansion. The result is mechanical strain between these layers. Junction temperature control systems are able to minimize the occurring temperature swings and to smooth the junction temperature course. Thus, the expected lifetime of the power semiconductor device is extended. A possibility to affect the junction temperature and the value of the junction temperature are required to realize such a control system. This paper proposes a model based junction temperature control system for lifetime extension of the power semiconductor devices using the gate driver's supply voltage as a correction variable. Therefore, the junction temperature is calculated by a thermal modelwith the load condition as an input variable.

   Optimal Control of Matrix Converters
By Andrea FORMENTINI [View]
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Abstract: In this paper a new control technique for matrix converter based on a Linear Quadratic Regulator (LQR) is proposed. Stabilization of matrix converter is often challenging due to the input filter resonance. The proposed method is compared with classical approaches for matrix converter control. It will be shown how the proposed approach can guarantee higher output current bandwidth providing also a good attenuation to grid disturbance.

   Peak Current Reduction and Zero Cross Distortion Improvement for Discontinuous Current Mode Single Phase Grid-Tied Inverter
By Jiantao ZHANG [View]
[Download]

Abstract: This paper proposes a novel modulation method to address the problems in the conventional discontinuous current mode modulation for low-power single phase grid-tied inverter. The proposed modulation combines the advantages of the conventional DCM modulations. The operation principles, design considerations are presented in the paper. The performance of the proposed modulation is validated by experiments.

EPE 2019 - LS4c: Standard and Advanced Control Techniques for Power Converters (part II)
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2019 ECCE Europe - Conference > EPE 2019 - Topic 03: Measurement and Control > EPE 2019 - LS4c: Standard and Advanced Control Techniques for Power Converters (part II)
	[return to parent folder]

	Discrete Active Damping Control Design for LCL-Resonances Using Observer By Michael SCHÜTT	[View] [Download]
Abstract: This paper presents modeling techniques addressing the implementation-space issues for the control of inverters connected to LCL-topologies. These discrete models include the computational delay and enable the design of robust observers. These observers grant access to state information such as the capacitor current and consequently facilitate active damping and delay compensation.

	Model Based Junction Temperature Control Using the Gate Driver Voltage as a Correction Variable By Johannes RUTHARDT	[View] [Download]
Abstract: Junction temperature swings, caused by load alternation in power electronics, lead to a reduced lifetime of power semiconductor devices. When temperature swings occur, the different material layers of the power semiconductor device expand in a different way because of their different coefficient of thermal expansion. The result is mechanical strain between these layers. Junction temperature control systems are able to minimize the occurring temperature swings and to smooth the junction temperature course. Thus, the expected lifetime of the power semiconductor device is extended. A possibility to affect the junction temperature and the value of the junction temperature are required to realize such a control system. This paper proposes a model based junction temperature control system for lifetime extension of the power semiconductor devices using the gate driver's supply voltage as a correction variable. Therefore, the junction temperature is calculated by a thermal modelwith the load condition as an input variable.

	Optimal Control of Matrix Converters By Andrea FORMENTINI	[View] [Download]
Abstract: In this paper a new control technique for matrix converter based on a Linear Quadratic Regulator (LQR) is proposed. Stabilization of matrix converter is often challenging due to the input filter resonance. The proposed method is compared with classical approaches for matrix converter control. It will be shown how the proposed approach can guarantee higher output current bandwidth providing also a good attenuation to grid disturbance.

	Peak Current Reduction and Zero Cross Distortion Improvement for Discontinuous Current Mode Single Phase Grid-Tied Inverter By Jiantao ZHANG	[View] [Download]
Abstract: This paper proposes a novel modulation method to address the problems in the conventional discontinuous current mode modulation for low-power single phase grid-tied inverter. The proposed modulation combines the advantages of the conventional DCM modulations. The operation principles, design considerations are presented in the paper. The performance of the proposed modulation is validated by experiments.