This research seeks to enhance energy management systems (EMS) within a microgrid by focusing on the importance of accurate renewable prediction and its strong correlation with load curtailment. Analyzing precision disturbance predictions, reveals that predicting one hour in advance is more effective than immediate predictions or those made several hours beforehand. Furthermore, study investigates scheduling curtailment manage peak power from sources comparing two distinct strategies: Case...

The transition of the global economy to a low-carbon development path has led dramatic changes in organization and functioning energy markets around world, where hybrid systems (HESs) are one decisive active agents. At same time, number problems facing modern HESs primarily due stochastic nature renewable they use, require further profound not only technologies use how manage them, necessary meet needs end consumers interact with unified system, but also preserve ability environment...

The world trends in the introduction of renewable energy sources (RES) and peculiarities their implementation during recovery economy Ukraine are considered.
 It is shown that sector undergoing a fundamental transformation, therefore it necessary to develop new security paradigm will ensure reliability availability while simultaneously reducing emissions, green an unconditional global trend coming decades. has been determined diversifying our supply by investing RES one promising ways...

Local electricity systems offer new features and opportunities for suppliers consumers. Transactive energy is a concept that uses information exchange as mechanism to better manage the local system flow. Smart monitoring transactive require of basic parameters such voltage, frequency, power. Energy characteristics make it possible assess impact uneven consumption generation electricity, quality level reactive power network losses. The evaluation processes studied in this article. An...

The problems of integration Microgrids which include DG sources and RES with centralized electric power systems are investigated in this paper. main stages tasks synthesis models these analyzed. Authors propose to create the synthesized based on game-theoretic approach allows take into account interests (objective functions) both systems. Such method reflect diverse interaction Based proposed method, problem multi-criterion optimization for such framework game theory is formulated by...

Microgrid can also be presented as a set of distributed generation sources (DGS) electricity that are up close to consumers and intended for their supply. The need parallel operation several generators arises the following reasons: it is necessary ensure increased power supply reliability. An algorithm, which calculates optimal distribution generator load P, corresponds minimum value fuel consumption, was developed. developed algorithm used purposes evaluation research energy generation; in...

The system of constant-voltage regulation (SCVR) is built on the principle forced sine-shaped current rise, which consumed from circuit and relay control. suggested solves problem electromagnetic compatibility terminal processing speed. SCVR has two circuits, looped circuits. first one secures looping courses current, circuit. second used for voltage stabilization load. following research presents analytical data mode frequency identification while mains are load formation. Thus, invariant...

The development of Microgrid states the problem choosing optimal technologies for its composition.This paper is to present cost based demand-side management methods Microgrids with DistributedGeneration sources optimize their operation. While implementing variable pricing models aggregatorshould take into account characteristics different Distributed Energy Resources (DER) (diesel engines, gasturbines, fuel cells, solar panels, small hydropower plants and wind turbines) LCOE each type DER...

This article features an overview of active three-phase rectifiers for autonomous power supply systems that include the electrical system aircraft. Rectifiers are subject to strict current quality requirements according More Electric Aircraft (MEA) concept, which is dominant trend in aircraft engineering. considers four alternate schemes with a histeresis control powered by network frequency 400 kHz. The results modeling, harmonious composition and its compliance standards described this...

The article the efficiency of Microgrid network when transitioning to a transactive power system that uses control algorithms called optimize distribution between sources distributed generation and minimize time decision-making about mode switching at corresponding change architecture. Tables graphs conducted modeling are presented this control-optimized is calculated in comparison with where uniform load used.

Впровадження розумної зарядки електромобілів дозволяє операторам локальних електромереж і постачальникам електроенергії впроваджувати нові бізнес-моделі взаємодії з мережею. Крім оптимального відбору потужностей Мicrogrid при заряді електромобілів, важливо використання різних методів заряду. Для задоволення інтересів всіх учасників систем економічної та технічної точки зору обрано концепцію транзактивної енергії. Проведено дослідження впливу керування зарядом на ККД батареї EV, таких як...

Розвиток децентралізованих систем розширює можливості місцевих громад, переорієнтовуючи виробництво енергії з великих централізованих комунальних підприємств на локальні системи, керовані громадою. Традиційні системи керування енергією та методи оптимізації використання електроенергії споживачам контролюють електроприймачі за допомогою інтрузивних лічильників електроенергії. Для використовується техніка неінтрузивного моніторингу навантаження, яка є популярним підходом для споживання...

The local electricity system is a decentralized grid, one of the tasks which optimized management distributed energy resources. To achieve effective integration and interaction in work systems at level residential commercial buildings, set algorithms that are combined into monitoring required. A transactive allows multiple interconnected buildings to exchange for greater efficiency. article presents peculiarities such systems, method assessing efficiency assessment unevenness consumption...

The global decarbonization goals have caused a series of fundamental changes in the power systems developed countries. New approaches and concepts for constructing modernized electrical grids are needed to increase energy systems' efficiency, reliability, sustainability. Ukraine`s sector is particular need new construction supply with introduction renewable sources distributed sources. According Roadmap Concept Implementation "Smart Grid", restoration facilities damaged by Russian attacks...

Дотримання балансу між генерацією та споживанням електроенергії є найголовнішою умовою стабільної роботи електроенергетичної системи. Щораз більша частка відновлювальних джерел енергії в загальному балансі генерації має мінливий графік генерування, що зумовлює використання нових підходів стосовно балансування попиту пропозиції електричної енергії, потребуючи більш оперативно реагувати на їх зміни, особливо важливим у локальних електроенергетичних системах (ЛЕС) для забезпечення стабільної,...

Local energy markets represent a separate distribution system with several sources of distributed generation and its own network-independent operator. The cost electricity in local systems depends on many criteria. They include the consumption primary fuel for diesel generators, which depend their capacity. Equal power generators running parallel leads to an increase consumption. An algorithm optimizing consumption, calculates connected parallel, has been developed. These capacities...

The study aims to determine the relationship between energy parameters, geometric and thermophysical properties of battery's constituent elements. highest battery power values are observed during stage cooling material phase transformation temperature heating after transformation. lowest output is transformation, primarily due limited heat exchange storage substance in its solid state.

The market operation of the electricity distribution system has gained significant expansion due to growing use renewable and distributed sources. This paper presents strategies for optimizing load schedules by aggregators local systems. Optimization is minimize total costs supplier reduce cost lower prices consumer. In systems, which include diesel generators, main component that most affects price per 1 kW consumption primary fuel generators. objective function proposed in this study...

The possibility of creating a universal stand for the practical implementation and research new Closed-relay-robust control algorithms functional parametric uncertain electromechanical systems based on AC Motors is shown. At program level, implemented discontinuous synchronous machine with excitation from permanent magnets when powered frequency converter Sinamics s120 are elaborayed.

The paper presents an overview of the cost-effective reliability improvement methods in power systems with renewables. rapid development Microgrids as part general supply states problem choosing optimal technologies for its composition. cost-based approach is most efficient and distribution networks distributed generation energy stirage systems. cost function Microgrid system depends on mode operation. buys electricity network or sells surplus to get income. To address issue sources...