{"title":"Enhancing Line Transient Response of a RHP Zero Constrained Buck-Boost Converter","authors":"Isac Daimary;Rajib Jana","doi":"10.1109/TIA.2024.3476230","DOIUrl":null,"url":null,"abstract":"In this article, an adaptive sawtooth height control (ASHC) circuit is introduced to enhance the line transient response of a non-isolated buck-boost converter (BBC). The dynamic performance of a BBC is significantly hindered by the presence of a right-half-plane-zero (RHPZ) in its control-to-output transfer function. This RHPZ leads to reduced bandwidth and consequently slower line and load transient responses, particularly in voltage mode control (VMC). The ASHC effectively mitigates these issues, even in the presence of an RHPZ. A detailed design methodology is presented, and a Type-III controller is developed to evaluate the closed-loop dynamic performance of the BBC. Both the ASHC and the Type-III controller circuits are cost-effective and easy to implement, utilizing straightforward control logic and a minimal number of discrete components. Simulation and experimental results are provided to validate the effectiveness of the proposed ASHC control scheme. The results clearly demonstrates the fast line transient response due to incorporation of the proposed ASHC circuit.","PeriodicalId":13337,"journal":{"name":"IEEE Transactions on Industry Applications","volume":"61 1","pages":"439-449"},"PeriodicalIF":4.2000,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Industry Applications","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10707253/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this article, an adaptive sawtooth height control (ASHC) circuit is introduced to enhance the line transient response of a non-isolated buck-boost converter (BBC). The dynamic performance of a BBC is significantly hindered by the presence of a right-half-plane-zero (RHPZ) in its control-to-output transfer function. This RHPZ leads to reduced bandwidth and consequently slower line and load transient responses, particularly in voltage mode control (VMC). The ASHC effectively mitigates these issues, even in the presence of an RHPZ. A detailed design methodology is presented, and a Type-III controller is developed to evaluate the closed-loop dynamic performance of the BBC. Both the ASHC and the Type-III controller circuits are cost-effective and easy to implement, utilizing straightforward control logic and a minimal number of discrete components. Simulation and experimental results are provided to validate the effectiveness of the proposed ASHC control scheme. The results clearly demonstrates the fast line transient response due to incorporation of the proposed ASHC circuit.
期刊介绍:
The scope of the IEEE Transactions on Industry Applications includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.