A Simple Ripple Voltage Compensation Method in Hybrid AC-DC Microgrids

2019 ◽  
Author(s):  
Dang-Minh Phan ◽  
Hong-Hee Lee
Keyword(s):  
Compensation Method ◽  
Dc Microgrids ◽  
Voltage Compensation

scholarly journals Decentralized Voltage Regulation in Islanded DC Microgrids Based on a Modified Droop Control using Superimposed AC Voltage

2021 ◽  
Author(s):  
Mohammadreza Nabatirad ◽  
Reza Razzaghi ◽  
Behrooz Bahrani
Keyword(s):  
Control System ◽  
Load Sharing ◽  
Voltage Regulation ◽  
Control Technique ◽  
Droop Control ◽  
Dc Microgrids ◽  
Distributed Generator ◽  
Voltage Compensation ◽  
Terminal Voltage ◽  
Unit Output

The conventional droop control is a widely-used technique in load sharing among Distributed Generator (DG) units in islanded DC Microgrids (MGs). This method provides Plug-and-Play (PnP) capability for DG units; however, poor load sharing accuracy and unregulated voltage are two shortcomings of that. This article proposes a novel control system in islanded DC MGs to provide simultaneous regulated voltage and accurate load sharing. The method utilizes a modified droop control technique in a decentralized manner. The proposed control system injects a superimposed AC voltage to the network that carries a frequency proportional to the master DG unit output current. The injected voltage adjusts an added a term to the conventional droop control named as the voltage compensation term in order to cancel voltage changes. This term adjusts terminal voltage of DG units proportional to the frequency of the superimposed AC voltage. The performance of the proposed control system is validated via a set of simulation studies using PLECS, and the experimental results confirm the viability and feasibility of the proposed control system.

A Dynamic Voltage Compensation Method for Improving Weighing Accuracy

2013 ◽  
Vol 333-335 ◽  
pp. 317-321
Author(s):  
Rong Sen Yin ◽  
Jia Qiang Yang
Keyword(s):  
Measurement Error ◽  
Digital Signal Processor ◽  
Digital Signal ◽  
Wheatstone Bridge ◽  
External Source ◽  
Compensation Method ◽  
Voltage Fluctuation ◽  
Voltage Compensation ◽  
Voltage Signal ◽  
Dynamic Voltage

In order to eliminate the measurement error caused by working voltage fluctuation of weighing sensor, a dynamic voltage compensation method for improving the weighing accuracy was proposed in the paper. The method takes strain gauge type pressure sensor as the weighing sensor and corrects Wheatstone bridge circuit. By synchronously detecting output voltage signal and working voltage of the weighing sensor, the method dynamically compensates the working voltage fluctuation of the weighing sensor, corrects the measurement error caused by the voltage fluctuation of external source and calculates the weight in real time. A weighing system based on the digital signal processor (DSP) was designed. Results of simulation experiment verify the feasibility of the proposed method.

Improved droop control based voltage compensation and variable droop coefficient in DC microgrids

2016 ◽  
Author(s):  
Chengcheng Li ◽  
Jianguo Wu ◽  
Kun Zhang ◽  
Xiang Dai ◽  
Sheng Xu
Keyword(s):  
Droop Control ◽  
Dc Microgrids ◽  
Voltage Compensation

Stability Analysis and Research of Compensation method for DC Microgrids

2021 ◽  
Author(s):  
Heng Xu ◽  
Yi Liu ◽  
Guojing Dong ◽  
Xiaoxin Sun
Keyword(s):  
Stability Analysis ◽  
Compensation Method ◽  
Dc Microgrids

APD optimal bias voltage compensation method based on machine learning

2020 ◽  
Vol 97 ◽  
pp. 230-240
Author(s):  
Yihan Cao ◽  
Xiongzhu Bu ◽  
Miaomiao Xu ◽  
Wei Han
Keyword(s):  
Machine Learning ◽  
Bias Voltage ◽  
Compensation Method ◽  
Voltage Compensation ◽  
Optimal Bias

ILC-Based Voltage Compensation Method for PMSM Sensorless Control Considering Inverter Nonlinearity and Sampling Current DC Bias

2020 ◽  
Vol 67 (7) ◽  
pp. 5980-5989
Author(s):  
Yangrui Wang ◽  
Yongxiang Xu ◽  
Jibin Zou
Keyword(s):  
Sensorless Control ◽  
Compensation Method ◽  
Voltage Compensation ◽  
Dc Bias

scholarly journals ANALISYS OF A SINGLE-PHASE HYBRID BIDIRECTIONAL RECTIFIER WITH A DC BUS SERIES VOLTAGE COMPENSATION FOR DC MICROGRIDS APPLICATION

2020 ◽  
Vol 25 (3) ◽  
pp. 305-315
Author(s):  
Vítor Fonseca Barbosa ◽  
Gustavo Brito de Lima ◽  
Antônio de Oliveira Costa Neto ◽  
Danillo Borges Rodrigues
Keyword(s):  
Single Phase ◽  
Dc Microgrids ◽  
Voltage Compensation ◽  
Dc Bus
Sign in / Sign up

Export Citation Format

Share Document