Stability Control and Mode Shift of Ramp Compensation in V<sup>2</sup> Controlled Buck Converter

HE Shengzhong; XU Jianping; ZHOU Guohua; BAO Bocheng; YAN Tiesheng

doi:10.1049/cje.2015.04.011

Volume 24 Issue 2

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HE Shengzhong, XU Jianping, ZHOU Guohua, et al., “Stability Control and Mode Shift of Ramp Compensation in V2 Controlled Buck Converter,” Chinese Journal of Electronics, vol. 24, no. 2, pp. 295-299, 2015, doi: 10.1049/cje.2015.04.011

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HE Shengzhong, XU Jianping, ZHOU Guohua, et al., “Stability Control and Mode Shift of Ramp Compensation in V² Controlled Buck Converter,” Chinese Journal of Electronics, vol. 24, no. 2, pp. 295-299, 2015, doi: 10.1049/cje.2015.04.011

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Stability Control and Mode Shift of Ramp Compensation in V² Controlled Buck Converter

doi: 10.1049/cje.2015.04.011

1.
School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China;
2.
School of Information Science and Engineering, Changzhou University, Changzhou 213164, China

Funds: The work is supported by the National Natural Science Foundation of China (No.51177140, No.61371033), the Specialized Research Fund for the Doctoral Program of Higher Education (No.20130184120011), the Sichuan Provincial Youth Science and Technology Fund (No.2013JQ0033), and the Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China (No.142027).

Publish Date: 2015-04-10

Abstract

Abstract

V² controlled buck converter with ramp compensation is studied, its two border voltages are derived and one-dimensional discrete-time model is established, upon which the dynamical effect of V² control technique on stability control and mode shift of V² controlled buck converter with ramp compensation is studied by using the bifurcation diagram, Lyapunov exponent spectrum, and parameter space map. The research results verified by simulation and experimental measurements indicate that by utilizing ramp compensation, V² controlled buck converter can not only shift its operation mode from discontinuous conduction mode to continuous conduction mode, but also effectively stabilize its operation state from unstable subharmonic oscillation to stable periodic state.
- Bifurcation,
- Parameter space,
- Ramp compensation,
- V² control

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References(23)

References

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