Power Sharing in a Double-Input Buckboost Converter Using Offset Time Control

2009 ◽  
Author(s):  
Deepak Somayajula ◽  
Mehdi Ferdowsi
Keyword(s):  
Power Sharing ◽  
Time Control ◽  
Offset Time

scholarly journals Distributed fixed-time cooperative control of an islanded microgrid under event-triggered mechanism

2021 ◽  
Author(s):  
Deming Xu ◽  
Ze Li ◽  
Guozeng Cui ◽  
Wanjun Hao ◽  
Fuyuan Hu
Keyword(s):  
Cooperative Control ◽  
Fixed Time ◽  
Active Power ◽  
Settling Time ◽  
Power Sharing ◽  
Control Approach ◽  
Time Control ◽  
Islanded Microgrid ◽  
Control Protocols ◽  
Event Triggered

Abstract The secondary cooperative control problem of an islanded microgrid through event-triggered mechanism is investigated in this paper. A distributed fixedtime secondary cooperative control strategy is proposed to obtain frequency and voltage magnitude secondary restoration, and also a proportional active power sharing under an undirected topology. We consider a centralized event-triggered mechanism to alleviate the communication burden and reduce the frequency of controllers update. Through this mechanism, the distributed fixed-time control protocols using frequency, voltage magnitude and active power sampling measurement values of distributed generations (DGs) only when the predefined event-triggered condition is satisfied. Compared with the conventional distributed asymptotic control protocols under period-triggered communication, the secondary control objectives of an islanded microgrid are achieved within a fixed settling time by applying the presented distributed fixed-time control approach, and the upper bound of settling time is unrelated to any initial states. Meanwhile, the presented centralized event-triggered communication method exhibits excellent performance in alleviating communication burden and promoting control efficiency. The theoretical proof is given by adopting Lyapunov method. The simulation studies are conducted to illustrate the effectiveness of the proposed control scheme.

Proportional Power Sharing Consensus in Distributed Generators

2018 ◽  
Author(s):  
Farzad Aalipour ◽  
Tuhin Das
Keyword(s):  
Power Sharing ◽  
Real Time Control ◽  
Dc Microgrid ◽  
Control Approach ◽  
Load Power ◽  
Time Control ◽  
Distributed Generators ◽  
Power Load ◽  
Control Scheme ◽  
Power Fluctuations

In this study, the problem of proportional power sharing consensus in a DC microgrid (MG) consisting of distributed generators (DGs) is discussed. Presently, MGs face challenges involving the intermittent nature of DGs and load power fluctuations. To address these challenges, three different control schemes are proposed. The first consensus-based control algorithm is introduced to address proportional power sharing in the presence of variations in the DGs rate, i.e., power capacity. Secondly, in regards to load power fluctuations, a control scheme is designed to enable the DGs to compute their individual proportional power share in a distributed manner. Eventually, a comprehensive real-time control approach is developed through which the DGs cooperatively maintain the required power load and achieve the updated proportional share simultaneously. To demonstrate the effectiveness of the proposed approaches simulations results for a simple network of DGs are presented.

Power Sharing and Democracy in Post-Civil War States

2020 ◽  
Author(s):  
Caroline A. Hartzell ◽  
Matthew Hoddie
Keyword(s):  
Civil War ◽  
Power Sharing

Work Engagement and Research Output Among Female and Male Scientists

2016 ◽  
Vol 15 (2) ◽  
pp. 55-65 ◽  
Author(s):  
Lonneke Dubbelt ◽  
Sonja Rispens ◽  
Evangelia Demerouti
Keyword(s):  
Work Engagement ◽  
Research Output ◽  
Research Performance ◽  
Daily Work ◽  
Time Control ◽  
Science Technology ◽  
And Performance ◽  
And Mathematics ◽  
Number Of Publications ◽  
The Relationship

Abstract. Women have a minority position within science, technology, engineering, and mathematics and, consequently, are likely to face more adversities at work. This diary study takes a look at a facilitating factor for women’s research performance within academia: daily work engagement. We examined the moderating effect of gender on the relationship between two behaviors (i.e., daily networking and time control) and daily work engagement, as well as its effect on the relationship between daily work engagement and performance measures (i.e., number of publications). Results suggest that daily networking and time control cultivate men’s work engagement, but daily work engagement is beneficial for the number of publications of women. The findings highlight the importance of work engagement in facilitating the performance of women in minority positions.

A Real Time Control Architecture for Continuously Managing Patients in a Care Unit

1995 ◽  
Vol 34 (05) ◽  
pp. 475-488
Author(s):  
B. Seroussi ◽  
J. F. Boisvieux ◽  
V. Morice
Keyword(s):  
Real Time ◽  
Linear Time ◽  
Treatment Plan ◽  
Control Architecture ◽  
Real Time Control ◽  
Time Representation ◽  
Time Control ◽  
Continuous Support ◽  
Definition Of ◽  
Computerized System

Abstract:The monitoring and treatment of patients in a care unit is a complex task in which even the most experienced clinicians can make errors. A hemato-oncology department in which patients undergo chemotherapy asked for a computerized system able to provide intelligent and continuous support in this task. One issue in building such a system is the definition of a control architecture able to manage, in real time, a treatment plan containing prescriptions and protocols in which temporal constraints are expressed in various ways, that is, which supervises the treatment, including controlling the timely execution of prescriptions and suggesting modifications to the plan according to the patient’s evolving condition. The system to solve these issues, called SEPIA, has to manage the dynamic, processes involved in patient care. Its role is to generate, in real time, commands for the patient’s care (execution of tests, administration of drugs) from a plan, and to monitor the patient’s state so that it may propose actions updating the plan. The necessity of an explicit time representation is shown. We propose using a linear time structure towards the past, with precise and absolute dates, open towards the future, and with imprecise and relative dates. Temporal relative scales are introduced to facilitate knowledge representation and access.

SVM-based global vision system of sports competition and action recognition

2020 ◽  
pp. 1-12
Author(s):  
Changxin Sun ◽  
Di Ma
Keyword(s):  
Target Recognition ◽  
Vision System ◽  
Task Assignment ◽  
Recognition Algorithm ◽  
Control Factor ◽  
Training Time ◽  
Adaboost Algorithm ◽  
Advantages And Disadvantages ◽  
Time Control ◽  
Correlation Degree

In the research of intelligent sports vision systems, the stability and accuracy of vision system target recognition, the reasonable effectiveness of task assignment, and the advantages and disadvantages of path planning are the key factors for the vision system to successfully perform tasks. Aiming at the problem of target recognition errors caused by uneven brightness and mutations in sports competition, a dynamic template mechanism is proposed. In the target recognition algorithm, the correlation degree of data feature changes is fully considered, and the time control factor is introduced when using SVM for classification,At the same time, this study uses an unsupervised clustering method to design a classification strategy to achieve rapid target discrimination when the environmental brightness changes, which improves the accuracy of recognition. In addition, the Adaboost algorithm is selected as the machine learning method, and the algorithm is optimized from the aspects of fast feature selection and double threshold decision, which effectively improves the training time of the classifier. Finally, for complex human poses and partially occluded human targets, this paper proposes to express the entire human body through multiple parts. The experimental results show that this method can be used to detect sports players with multiple poses and partial occlusions in complex backgrounds and provides an effective technical means for detecting sports competition action characteristics in complex backgrounds.

Governing Diversity: Reflections on the Doctrine and Tradition of Religious Accommodation in Islam

2020 ◽  
Vol 10 (2) ◽  
Author(s):  
Dr. Muhammad Mushtaq ◽  
Muhammad Riaz Mahmood
Keyword(s):  
Power Sharing ◽  
Primary Concern ◽  
Peaceful Coexistence ◽  
Religious Traditions ◽  
Faith Based ◽  
Religious Accommodation ◽  
Pluralistic Approach ◽  
Inclusive Governance ◽  
Multicultural Policies ◽  
Islamic Values

The problématique of governing diversity has attracted a great deal of scholarly attention but literature has largely overlooked the challenges appertaining to growing religious diversity in many places. The contemporary power sharing models and multicultural policies which are of a secular nature fall short of the expectations to foster peaceful coexistence in multi-religious societies. The primary concern of this paper is to manifest how religion can help us to lessen faith based violence. It is argued that religious traditions may offer valuable insights to design more inclusive governance. In this backdrop, the current paper evaluates the Islamic values of religious accommodation to gauge how helpful they are for designing inclusive policies in religiously diverse societies. The analysis illustrates that Islamic doctrine contemplates the politics of accommodation and forbearance. The pluralistic approach of Islam offered religious autonomy to non-Muslims in the state of Madinah. The ‘millet system’ established by the Ottoman Empire is widely admired for granting non-territorial autonomy in the matters related to religion, culture, and personal laws to non-Muslims. This display of an Islamic pluralistic approach at different junctures of Muslim history attests the capacity of the Islamic values of accommodation to nurture peaceful coexistence in modern societies. However, it requires a more unbiased and rigorous analysis to convince the global audience in this regard.

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