Tribal Property Rights: A Legal Analysis

In our country, the property rights of tribals are in extreme jeopardy. Despite various legislations and laws that ensure that property rights to the tribals are not denied, the situation is dire. There is also a massive power imbalance; the tribes have no power against the states and are always the victims. A constitutional provision like the Fifth Schedule is highly outdated and centralizes the decision-making rights of tribals. The PESA Act established to ensure that tribals are more involved in decision-making has been manipulated and not appropriately implemented. The LARR Act and the FRA Act, dealing with land acquisition laws and tribal property rights, respectively, have successfully been diluted by the states as well the central government.

Inertia Theory Frequency Dynamic Analysis and Control of Power System with High Proportion of Renewable Source

Power plant emissions are a major cause of pollution in the environment. This necessitates the progressive replacement of conventional power plants with renewable energy sources. Changes in the quotas for conventional generating and renewable energy sources present new issues for modern power networks for example photovoltaic and wind turbines are replacing conventional power plants, which do not add to system inertia and due to the earth’s diurnal cycle and weather conditions. Solar radiations are not consistent all through the day, and photovoltaic (PV) generation is sometimes insufficient to meet the power requirement of the shifting local load. The amount of inertia in the power system, as well as the action of adjustable frequency reserves and the amount of power imbalance, all have an impact on frequency stability. As a result, estimating power system inertia and assessing frequency response are required so that necessary actions can be taken to assure frequency stability. In this way, the system frequency, power, and voltage stability are the major issues when high proportion of renewables are added. In this paper, we explained estimating power system inertia-related frequency problems. The approach account for the frequency and voltage fluctuations that occur after a disturbance and estimate the system’s total inertia constant as well as its overall power imbalance. The anticipated technique based on computational intelligence is used to analyze frequency responses from simulations of a test system under various circumstances on SIMULINK and focuses on the standalone PV system is critical for controlling it. As a result, the modelling of a PV system, battery, and generator using analogous circuits is discussed. As a matter of fact, maximum power should be harvested from a PV array to increase its efficiency that is depicted from the result outcomes of this research.

Cyberbullying Perpetration Among Chinese Adolescents: The Role of Power Imbalance, Fun-seeking Tendency, and Attitude Toward Cyberbullying

The imbalance of power affords individuals to bully others. However, limited studies have explored the specific aspects of power imbalance in predicting cyberbullying. Furthermore, a fun-seeking tendency as a motive for cyberbullying and attitudes toward cyberbullying as cognitive stimuli have rarely been studied in relation to mediating the associations between power imbalance and cyberbullying in an integrated framework. This study aims to narrow these research gaps. Multistage cluster random sampling was employed to recruit a total of 1103 adolescents (52.5% females) ranging in age from 12 to 18 years. Structural equation modeling analyses revealed that proficiency in technology use is not only directly and positively associated with cyberbullying but also indirectly associated with cyberbullying via fun-seeking tendency. Although social status among peers had no direct effect on cyberbullying, the indirect effects of social status among peers on cyberbullying via the fun-seeking tendency and attitude toward cyberbullying were significant. Notably, physical power was neither directly associated with cyberbullying nor through the fun-seeking tendency or attitude toward cyberbullying in associating with cyberbullying. Implications of these findings for developing effective interventions are discussed.

The nasty face of the liability of foreignness: MNCs and rent extraction

Purpose This study aims to clarify the factors that act as a buffer to rent extraction from multi-national corporations (MNCs) in exchange relationships with the host country’s political actors. Design/methodology/approach This study proposes a conceptual model of the factors that determine rent extraction by host country political actors from MNCs. The model identifies the sources of power the MNC can use to alleviate the power imbalance relative to the political actor to decrease rent extraction. Additionally, it identifies the factors that constrain the power-advantaged political actor, thus moderating the relationship between power imbalance and rent extraction. Findings This conceptual paper’s propositions remain for future empirical validation. Originality/value This study integrates insights from the international business literature and resource dependence theory (RDT) to identify the determinants of firm-specific rent extraction risk for MNCs. First, the model sheds light on the heterogeneity among MNCs in their susceptibility to rent extraction and their ability to manage their liability of foreignness in the host country. Second, by integrating the horizontal and vertical distribution of power in the political environment to analyze the power-dependence relationship between the MNC and host country political actors, the framework addresses a shortcoming of RDT and accounts for the dynamics of the external environment for MNCs managing their dependencies. This study also provides a basis for discussing the rent extraction MNCs face worldwide and lays the foundation for future empirical works.

A Perturbation-Based Methodology to Estimate the Equivalent Inertia of an Area Monitored by PMUs

This paper proposes a novel methodology to estimate equivalent inertia of an area, observed from its boundary buses where Phasor Measurement Units (PMUs) are assumed to be installed. The areas are divided according to the measurement points, and the methodology proposed can obtain the equivalent dynamic response of the area dependent of or independent of coherency of the generators inside, which is the first contribution of this paper. The methodology is divided in three parts: estimating the frequency response, estimating the power imbalance and estimating inertia through the solution of the swing equation by Least-Squares Method (LSM). The estimation of the power imbalance is the second contribution of this paper, enabling the study of areas that contain perturbations and attending the limitation of methods of the literature that rely on assumptions of slow mechanical power. It can be further divided in three steps: accounting the total power injected, estimating an equivalent load behavior and estimating an equivalent mechanical power. The quality of results is proved with test systems of different sizes, simulating different types of perturbations.

Grid-Following Mode Operation of Small-Scale Distributed Battery Energy Storages for Fast Frequency Regulation in a Mixed-Source Microgrid

As the share of power converter-based renewable energy sources (RESs) is high, a microgrid, in islanded mode, is more vulnerable to frequency instability due to (1) sudden power imbalance and (2) low inertia. One of the most common approaches to address this issue is to provide virtual inertia to the system by appropriately controlling the grid-side converter of the RESs. However, the primary frequency controller (PFC) presented in this paper focuses on the fast compensation of power imbalance without adding inertia to the system. The proposed method is based on estimating the real-time power imbalance caused by a disturbance and compensating it using multiple small-scale distributed battery energy storage systems (BESSs). The power imbalance is estimated by observing the initial rate of change of frequency (RoCoF) following a disturbance. Based on the estimated power imbalance and the rating of the BESSs, the reference power for the BESSs is determined. The BESSs are controlled in grid-following mode to compensate for the power imbalance. The performance of the proposed PFC is verified using a Typhoon real-time simulator for various scenarios and is compared with the conventional virtual synchronous generator (VSG) controller.