scholarly journals Flexible control for power‐sharing in the CHB‐based SST under voltage unbalance conditions

2021 ◽  
Author(s):  
Mehdi Babaei ◽  
Reza Ghandehari
Keyword(s):  
Power Sharing ◽  
Flexible Control ◽  
Voltage Unbalance

scholarly journals Coordinated single-phase control scheme for voltage unbalance reduction in low voltage network

2017 ◽  
Vol 375 (2100) ◽  
pp. 20160308 ◽  
Author(s):  
Deepak Pullaguram ◽  
Sukumar Mishra ◽  
Nilanjan Senroy
Keyword(s):  
Distribution Systems ◽  
Single Phase ◽  
Reactive Power ◽  
Low Voltage ◽  
Power Sharing ◽  
Voltage Unbalance ◽  
Line Configuration ◽  
Control Scheme ◽  
Multi Agent ◽  
Proper Power

Low voltage (LV) distribution systems are typically unbalanced in nature due to unbalanced loading and unsymmetrical line configuration. This situation is further aggravated by single-phase power injections. A coordinated control scheme is proposed for single-phase sources, to reduce voltage unbalance. A consensus-based coordination is achieved using a multi-agent system, where each agent estimates the averaged global voltage and current magnitudes of individual phases in the LV network. These estimated values are used to modify the reference power of individual single-phase sources, to ensure system-wide balanced voltages and proper power sharing among sources connected to the same phase. Further, the high X / R ratio of the filter, used in the inverter of the single-phase source, enables control of reactive power, to minimize voltage unbalance locally. The proposed scheme is validated by simulating a LV distribution network with multiple single-phase sources subjected to various perturbations. This article is part of the themed issue ‘Energy management: flexibility, risk and optimization’.

Power Sharing and Democracy in Post-Civil War States

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

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.

Verification of Voltage Unbalance Suppression System using Single-phase Static Capacitors with Distribution Line Impedance Estimating Function

2017 ◽  
Vol 137 (5) ◽  
pp. 356-363
Author(s):  
Yukimasa Ikai ◽  
Mutsumi Aoki ◽  
Yu Fujita ◽  
Hiroshi Kobayashi ◽  
Mika Oguri ◽  
...  
Keyword(s):  
Single Phase ◽  
Estimating Function ◽  
Voltage Unbalance ◽  
Distribution Line ◽  
Suppression System

Three-phase to Single-phase Matrix Converter for Improvement of Three-phase Voltage Unbalance in Distribution System

2015 ◽  
Vol 135 (3) ◽  
pp. 168-180 ◽  
Author(s):  
Ryota Mizutani ◽  
Hirotaka Koizumi ◽  
Kentaro Hirose ◽  
Kazunari Ishibashi
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
Matrix Converter ◽  
Phase Voltage ◽  
Voltage Unbalance ◽  
Three Phase

Classical Greek Oligarchy

2017 ◽  
Author(s):  
Matthew Simonton
Keyword(s):  
Public Space ◽  
Political Institutions ◽  
Social Science Research ◽  
Science Research ◽  
Power Sharing ◽  
Majority Population ◽  
New Development ◽  
The Face ◽  
Changes Over Time ◽  
Client Relations

This book thoroughly reassesses an important but neglected form of government in ancient Greece, the “rule of the few.” The book challenges scholarly orthodoxy by showing that oligarchy was not the default mode of politics from time immemorial, but instead emerged alongside, and in reaction to, democracy. It establishes how oligarchies maintained power in the face of potential citizen resistance. It argues that oligarchs designed distinctive political institutions—such as intra-oligarchic power sharing, targeted repression, and rewards for informants—to prevent collective action among the majority population while sustaining cooperation within their own ranks. To clarify the workings of oligarchic institutions, the book draws on recent social science research on authoritarianism. Like modern authoritarian regimes, ancient Greek oligarchies had to balance coercion with co-optation in order to keep their subjects disorganized and powerless. The book investigates topics such as control of public space, the manipulation of information, and the establishment of patron–client relations, frequently citing parallels with contemporary nondemocratic regimes. It also traces changes over time in antiquity, revealing the processes through which oligarchy lost the ideological battle with democracy for legitimacy. This book represents a major new development in the study of ancient politics. It fills a longstanding gap in our knowledge of nondemocratic government while greatly improving our understanding of forms of power that continue to affect us today.

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