Minimal UPS structure with sliding mode control and adaptive hysteresis band

Ruiz, José María Ruiz; Lorenzo, S.; Lobo, I.; Amigó, José M.

doi:10.1109/iecon.1990.149284

Cited by 25 publications

(14 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Recalling that, in accordance with Remark 1, the utilized hysteresis band amplitude values keep the state vector ripple low enough, the approximation x = x * in the steady state is taken as a fact. As the switching hyperplane is now time-invariant, and the corresponding equivalent control (4) is constant in the steady state, the switching function derivatives (7) and its inverses (10) in the steady state are constant as well. Consequently, from a certain discrete-time instant k 0 it results that…”

Section: A the Regulation Casementioning

confidence: 99%

See 1 more Smart Citation

Switching Frequency Regulation in Sliding Mode Control by a Hysteresis Band Controller

Repecho

Biel

Olm

et al. 2017

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

Abstract-Fixing the switching frequency is a key issue in sliding mode control implementations. This paper presents a hysteresis band controller capable of setting a constant value for the steady state switching frequency of a sliding mode controller in regulation and tracking tasks. The proposed architecture relies on a piecewise linear modeling of the switching function behavior within the hysteresis band, and consists of a discrete-time integraltype controller that modifies the amplitude of the hysteresis band of the comparator in accordance with the error between the desired and the actually measured switching period. For tracking purposes an additional feedforward action is introduced to compensate the time variation of the switching function derivatives at either sides of the switching hyperplane in the steady state. Stability proofs are provided, and a design criterion for the control parameters to guarantee closed-loop stability is subsequently derived. Numerical simulations and experimental results validate the proposal.

show abstract

Section: A the Regulation Casementioning

confidence: 99%

“…Some authors propose the use of an adaptive hysteresis band for the comparator, adjusting its value in accordance with the system state [10]- [15]. This method provides good results, but perfect knowledge of the plant is required.…”

mentioning

confidence: 99%

Switching Frequency Regulation in Sliding Mode Control by a Hysteresis Band Controller

Repecho

Biel

Olm

et al. 2017

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

show abstract

“…Authors in [1], [8] and [9] propose the addition of a hysteresis cycle to the sliding mode control comparator. Several approaches, [10], [11], consider a variable bandwidth hysteresis cycle, which implementation depends on system parameters and is complex. Other electronic implementations of quasi-sliding controls are reported in [12], [13] where the fixed switching frequency is synchronized by an external signal d defined by a T d -periodic bipolar pulses train.…”

Section: Introductionmentioning

confidence: 99%

Some experiments on chattering suppression in power converters

Biel

Fossas

2009

2009 IEEE International Conference on Control Applications

View full text Add to dashboard Cite

Abstract-This paper contains some experiments based on the paper Chattering Suppression in Multiphase Power Systems by Hoon Lee, Andrey Malinin, and Vadim I. Utkin that will appear in International Journal of Control. In that paper, the use of multi-phase converters and an appropriated phase shift allows reducing chattering to desired level under given switching frequency in the so called "ripple cancelation" or "harmonic cancelation". Additionally this strategy would consider sliding mode as a suitable substitute over the Pulse Width Modulation because of the benefits in sliding mode control, e.g. the ability to achieve desired system responses regardless of a certain level of parameter changes.A half-bridge buck converter prototype was built and the chattering suppression reported in the Hoon Lee at al. paper has been checked comparing the power converter performances operating with 1-phase and 4-phases respectively.

show abstract

“…Fixed switching frequency improves performance even though chattering does not disappear. This is important in real applications, and to achieve this, some techniques have been developed: adaptive hysteresis band (Ruiz et al, 1990), (Yao and Holmes, 1993), (Pinheiro et al, 1994), signal injection with a selected frequency (Pinheiro et al, 1994), (Silva and Snia, 1993), (Malesani et al, 1996), (Nicolas et al, 1996), zero average current in each iteration (ZACE) (Borle and Chemmangot, 1995) and recently zero average error dynamics in each iteration (ZAD). ZAD control scheme, recently proposed in , tries to conjugate the advantages of fixed frequency implementations and the inherent robustness of sliding control modes.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of Chaos With Fpic: Application to Zad-Strategy Buck Converters

Angulo

Fossas

Ocampo

et al. 2005

IFAC Proceedings Volumes

View full text Add to dashboard Cite

In this paper a new design for controlling dynamical systems has been applied to buck converters driven with a PWM centered pulse and (Zero Average Dynamics) ZAD-strategy. Chaotic operation has been stabilized with the so-called Fixed Point Induced Control (FPIC) technique. Also, the same converter with delay, whose 1-periodic orbit is always unstable, has been stabilized. Simulations are compared with the TDAS stabilization technique. Once a 1-periodic orbit has been stabilized, the dynamics shows the same characteristics and advantages of the ZAD design, such as robustness, fixed switching frequency (with zero average on the sliding surface) and a low output error.

show abstract

Minimal UPS structure with sliding mode control and adaptive hysteresis band

Cited by 25 publications

References 6 publications

Switching Frequency Regulation in Sliding Mode Control by a Hysteresis Band Controller

Switching Frequency Regulation in Sliding Mode Control by a Hysteresis Band Controller

Some experiments on chattering suppression in power converters

Stabilization of Chaos With Fpic: Application to Zad-Strategy Buck Converters

Contact Info

Product

Resources

About