A Nonlinear Control for DC–DC Power Converters

Chan, Chok-You

doi:10.1109/tpel.2006.886657

Cited by 109 publications

(46 citation statements)

References 7 publications

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“…However, in most cases, this method presumes CCM operation of the converter, and the regulation is lost when it enters DCM operation. The other time-domain techniques, such as H-infinity control [10], fuzzy control [12]- [16], and nonlinear multiloop control [19], have also considered only the CCM operation.…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Control Algorithm for Voltage Regulation in DC–DC Boost Converter

Sreekumar¹,

Agarwal

2008

IEEE Trans. Ind. Electron.

181

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Abstract-A new switching control algorithm based on state trajectory approximation is proposed to regulate the output voltage of a representative second-order dc-dc converter-the boost converter. The essence of the proposed algorithm is to trap the system into a stable limit cycle while ensuring the required voltage regulation. Unlike some of the earlier algorithms, the concept is applicable to both continuous and discontinuous current modes of operation, making it viable over a wide operating range under various load and line disturbances. A hybrid-automaton representation of the converter is used to perform the analysis, and the control problem is simplified to a guard-selection problem. Guard conditions, governing the transition of the converter operation from one discrete state to the other in a hybrid-automaton representation, are derived. The hybrid-automaton-based control system is implemented by using the state flow chart feature of MATLAB, and extensive simulations are carried out to check the suitability of the algorithm. The hybrid control law is also validated in real time by using a laboratory prototype. The experimental and simulation results prove the effectiveness of the proposed control law under varying line and load conditions.

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Section: Introductionmentioning

confidence: 99%

A Hybrid Control Algorithm for Voltage Regulation in DC–DC Boost Converter

Sreekumar¹,

Agarwal

2008

IEEE Trans. Ind. Electron.

181

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“…The small signal average model, stability of DC-DC boost chopper, and its corresponding non-linear digital current controller in continuous current mode (CCM) have been illustrated in [16][17][18] and implemented in our previous work [2,19]. The experiments included high resolution internal resistance tests, and constant discharging current tests which can be a double closed loop system (an outside voltage loop and an inner side current loop), our work in this paper will concentrate on harmonic detection and reactive compensation.…”

Section: Charge and Discharge Control Of The Dc-dc Chopper For Epabptsmentioning

confidence: 99%

Design and Control of a Multi-Functional Energy Recovery Power Accumulator Battery Pack Testing System for Electric Vehicles

et al. 2014

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Abstract:In this paper, aiming at the energy loss and harmonic problems in the conventional power accumulator battery pack testing system (PABPTS), an improved multi-functional energy recovery PABPTS (ERPABPTS) for electric vehicles (EVs) was proposed. The improved system has the functions of harmonic detection, suppression, reactive compensation and energy recovery. The ERPABPTS, which contains a bi-directional buck-boost direct current (DC)-DC converter and a bi-directional alternating current (AC)-DC converter with an inductor-capacitor-inductor (LCL) type filter interfacing to the AC-grid, is proposed. System configuration and operation principle of the combined system are discussed first, then, the reactive compensation and harmonic suppression controller under balanced grid-voltage condition are presented. Design of a fourth order band-pass Butterworth filter for current harmonic detection is put forward, and the reactive compensator design procedure considering the non-linear load is also illustrated. The proposed scheme is implemented in a 175-kW prototype in the laboratory. Simulation and experimental results show that the combined configuration can effectively realize energy recovery for high accuracy current test requirement, meanwhile, can effectively achieve reactive compensation and current harmonic suppression.

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“…In order to achieve robustness, researchers have devised many control strategies to improve the performance of the power converters which leads to proposal of various control schemes and methods ranging from heuristic to established mathematical techniques(e.g., [7], [8], [9], [10], [11], [12], [13]). …”

Section: Introductionmentioning

confidence: 99%

Interval system analysis and PID-PSO control of boost converter for uncertain load parameter

Singh

Patra²,

Singh

et al. 2014

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

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This paper deals with the characteristics of a Boost Converter in the presence of uncertain load parameters. An Interval System analysis is adopted to evaluate the interval extension of load parameters and then a PID controller is designed using Particle Swarm Optimization(PSO). The PID-PSO controller meets the requirement of robust design and the design specification is satisfied over the entire parameter set. The particle swarm optimization (PSO) method is used to determine near optimum PID controller parameters assuring improved response for uncertain load parameters. Here, all the analyses have been done for continuous conduction mode (CCM) mode of operation and simulation results are plotted in MATLAB.

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A Nonlinear Control for DC–DC Power Converters

Cited by 109 publications

References 7 publications

A Hybrid Control Algorithm for Voltage Regulation in DC–DC Boost Converter

A Hybrid Control Algorithm for Voltage Regulation in DC–DC Boost Converter

Design and Control of a Multi-Functional Energy Recovery Power Accumulator Battery Pack Testing System for Electric Vehicles

Interval system analysis and PID-PSO control of boost converter for uncertain load parameter

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