A spline function, DSP based mixed-signal arbitrary waveform generator

Yeary, Mark; Fink, Rainer; Beck, D.; Burns, Mark A.; Guidry, D.

doi:10.1109/imtc.2002.1007130

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…Topology of full-power converter based VSG is shown in Fig.2, which can generate many required voltage sag faults, and DSP is generally used to implement complex control. The equipment under test(EUT) is supplied by dual-PWM fullpower converter, where the 3-phase PWM rectifier controls input power factor and maintains stabilization of DC-side voltage [9], the 3-phase PWM inverter is controlled to generate required sag waveforms, to simulate different grid voltage sag faults such as voltage sags, swells, flickers, 3-phase asymmetric faults and voltage harmonics [10]; For grid voltage sag, it is convenient to control voltage sag depth, duration time, sag phase and types, and dual-PWM converter can achieve power bidirectional flow easily, therefore the solution can satisfy requirement of wind power system testing under different voltage sag faults.…”

Section: Work Principle Of Transformer and Bidirectional Switchesmentioning

confidence: 99%

Comparison of Voltage Sag Generators for Wind Power System

2009

2009 Asia-Pacific Power and Energy Engineering Conference

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Low voltage ride through (LVRT) capability is required by new power system operating codes, then voltage sag generator (VSG) is generally used to simulate different voltage sag faults. The work principles of transformer and bidirectional switches based VSG and full-power converter based VSG are explained and discussed, the former can choose relay, thyristor or IGBT as bidirectional switches, and the comparison research of several VSG solutions is carried out by analysis and experiment. The experiment results make out that the full-power converter based VSG is powerful but its control is complex; the transformer and bidirectional switches based VSG has simple structure and high reliability, can simulate various types of voltage sag faults, and the voltage transition between normal and fault operation is smooth, then provide favorable conditions to verify the LVRT capability of wind power system. Keywords-wind power system; low voltage ride through (LVRT); voltage sags; voltage sag generator (VSG); autotransformer; bidirectional switches; full-power converterI.

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Section: Work Principle Of Transformer and Bidirectional Switchesmentioning

confidence: 99%

Comparison of Voltage Sag Generators for Wind Power System

2009

2009 Asia-Pacific Power and Energy Engineering Conference

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“…The paper in [3] adopts a LabVIEW program to generate regular function waveforms, FM/AM signals and curves. The paper in [4] employs a DSP accompanied First In First Out memories to generate specific waveforms. And, the paper in [5] uses an embedded system to generate desired waveforms and users can easily plot their waveforms with a touch panel.…”

Section: Introductionmentioning

confidence: 99%

A DSP-based bipolar switching power supply

Yang

2011

2011 IEEE Ninth International Conference on Power Electronics and Drive Systems

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This paper depicts a bipolar switching power supply designed for generating AC, DC, and other user-defined specific waveforms. The bipolar power supply is composed of a remote control board and a power supply module. The power supply module consists of a digital signal processor, an intelligent power module and an LC filter. A twisted-pair wire of CAN bus connects the remote control board and the power supply module. Output of the power supply module is set by the control board with a 4x4 keypad or through a LabVIEW interface program. The program downloads the data of user-defined waveforms, such as triangular, square, saw-tooth and step waves, to the control board with RS232 protocol. To demonstrate the idea, an experimental power supply is built up. The range of output voltage is from 5 to 110 volts and output frequency is from 6.5 to 110Hz. The maximum output current is 4 amperes.I.

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