Active Power Filter Designed by Energy Balancing Control

Janjornmanit, Suchart; Dechthummarong, Chanchai; Panta, Sakorn

doi:10.1109/iciea.2006.257077

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…It was firstly introduced to control the rigid body of active magnetic bearings, which provided a new view on the closed loop control [11]. Up to now, the application areas based on such a principle covered stability control of power systems, hamiltonian system, photovoltaic systems, active power filters, converters and so on [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Improved Energy Balance Control for Boost Converters Without Estimating Circuit Energy Losses

Wang

Tang

2020

IEEE Access

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The previously developed control methods based on the conservation of energy in circuits require the accurate estimation of energy losses, which is difficult to measure and calculate for boost converters. Consequently, there always exist steady-state errors in the output voltage if neglecting such circuit energy losses. To address this issue, an improved energy balance control (IEBC) method is proposed in this paper by integrating a simplified energy balance controller (SEBC) with a PI controller. The proposed IEBC can reduce the steady-state output voltage errors without requiring the estimation of circuit energy losses. Furthermore, the proposed IEBC can operate in both the continuous current mode (CCM) and the discontinuous current mode (DCM), thus accurate static and fast dynamic performances are achieved over the entire load operation range. Moreover, the stability of the IEBC is proved using the Lyapunov stability criterion. Compared with that of the SEBC, both simulations and experiments validate the feasibility and robustness of the proposed IEBC method.

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Section: Introductionmentioning

confidence: 99%

Improved Energy Balance Control for Boost Converters Without Estimating Circuit Energy Losses

Wang

Tang

2020

IEEE Access

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Three-Phase Active Power Filter Designed by Energy Balancing Control

Janjornmanit

Yachiangkam

2006

2006 IEEE International Conference on Industrial Technology

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In this paper, an Energy Balancing Control is of works and further investigation. Finally, section VI gives the proposed for a three-phase Active Power Filter (APF). The conclusion. simplicity of energy analysis in the controlled system is formulated and proposed. The proposed approach presents a novel reference current generation of three-phase system under II. THE CONCEPT OF ENERGY BALANCING CONTROL distorted and/or unbalanced load using cycle by cycle basis. The low harmonic distortion, unity power factor and balanced load Fig. 1 shows the shunt APF connected to the system can be achieved by sensing and controlling the source current. encountered the problem of harmonics from distorting load. The simulation results of various loads verify the validity and The non-sinusoidal current drawn of distorting load is managed performance of the proposed control. to achieve compensated current from the connected APF.Index Terms-Active power filter, harmonics, reference current Therefore the source current drawn form system is forced to be generation, active power, Energy Balancing Control, one-cycle in the form of sine wave with unity power factor. integration. The Energy Balancing Control assumptions are, 1) The energy consumed by the system is equal in every I. INTRODUCTION system cycle (or almost equal),2) The energy flow in and out the energy storage (the The use of active power filter (APF) to eliminate harmonic capacitor of DC-Bus) must be balanced in every single current and to compensate reactive power has attracted much cycle in order to control the stability of the system. attention since the late 1970s [1-2]. References [1][2] show that Equation (1) is the function of current draw from system in many works have been proposed, some of them gain much the case of pure resistive load, such a changing of current is the attention, such as [3][4]. The APF can be categorized into two sine wave as a changing of source voltage. In order to control schemes, whether it is truly closed-loop control or it is the source current to be in the form of sine wave, the resistance considered to be only open-loop control [2]. The closed-loop of the APF connected system should be constant over cycle. approach controls source current whereas the counterpart controls either injecting current or load current. Most of the V sin(ct + 0) (1) proposed techniques have been described as open-loop control. R(t) = R There are few of the closed-loop techniques reported, such as [3-5] and some of them gain wide interest, i.e. the UCI control technique [3]. The single-phase active power filter designed by Energy Balancing Control was firstly introduced in [5]. In this paper, GAU GBu Gcu the three-phase version of the control scheme is proposed. The LA control objective can be achieved by fully closed-loop control. jVA I r |The reference current is firstly identified by using the concept | of energy calculation and control. The source current is then IC "LVc forced to follow the reference current by current controller.The controller of the prop...

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Energy balance analysis and control for boost converters

Wang

Tang

et al. 2017

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

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Active Power Filter Designed by Energy Balancing Control

Cited by 3 publications

References 6 publications

Improved Energy Balance Control for Boost Converters Without Estimating Circuit Energy Losses

Improved Energy Balance Control for Boost Converters Without Estimating Circuit Energy Losses

Three-Phase Active Power Filter Designed by Energy Balancing Control

Energy balance analysis and control for boost converters

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