Optimal control of a wind–PV-hybrid powered heat pump water heater

Sichilalu, Sam M.; Mathaba, Tebello; Xia, Xiaohua

doi:10.1016/j.apenergy.2015.10.072

Cited by 70 publications

(36 citation statements)

References 39 publications

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“…Due to the difficulties of consolidated input data of this facility, the relatively similar data is adopted from [20]. The inlet cold water temperature and hot water demand is shown in Figure …”

Section: Case Studymentioning

confidence: 99%

“…The heat pump model is developed according to [20,25], with a fixed power demand P hp rating, operating at full capacity. The hot water temperature distribution inside the tank is treated as uniform.…”

Section: Sub-models 221 Heat Pump Water Heatermentioning

confidence: 99%

“…Though, few challenges exist in providing the hot water at short time interval and the initial cost [16,17]. Integration of such equipment with REs is the main challenge [18,19,20].…”

Section: Introductionmentioning

confidence: 99%

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Optimal control of a fuel cell/wind/PV/grid hybrid system with thermal heat pump load

2016

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This paper presents an optimal energy management strategy for a grid tied photovoltaic-wind-fuel cell hybrid power supply system. The hybrid systems meets the load demand consisting of an electrical load and a heat pump water heater supplying thermal load. The objective is to minimize energy cost and maximize fuel cell output, taking into account the time-of-use electricity tariff. The optimal control problem is solved using a mixed integer linear program with the supply switch to the heat pump water heater and the power from the grid, power to/from inverter, power to electrolyzer and from fuel cell the control variables. The hot water temperature inside the water storage tank and the hydrogen in the storage tank are the state variables. The performance of the proposed control strategy is tested by simulating different operating scenarios: with and without renewable energy feed-in, and the results confirm the effectiveness of the proposed control strategy, as it increases the supply reliability of the system. Keywords

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Section: Case Studymentioning

confidence: 99%

Section: Sub-models 221 Heat Pump Water Heatermentioning

confidence: 99%

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Optimal control of a fuel cell/wind/PV/grid hybrid system with thermal heat pump load

2016

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“…In 2015, Ma et al [114] presented a technoeconomic analysis of the standalone hybrid solarwind-pumped storage system for an isolated microgrid. In 2017, Sichilalu et al [62] presented an optimal control (OC) model of a heat pump water heater (HPWH), which is supplied by a wind generator-photovoltaic-grid system. The objective function is energy cost minimization, which considers the time-of-use electricity tariff.…”

Section: Distributed Generation (Dg) In 2011 Amanifar Andmentioning

confidence: 99%

Optimal Power Flow Techniques under Characterization of Conventional and Renewable Energy Sources: A Comprehensive Analysis

Khan

Singh

2017

Journal of Engineering

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The exhaustive knowledge of optimal power flow (OPF) methods is critical for proper system operation and planning, since OPF methods are utilized for finding the optimal state of any system under system constraint conditions, such as loss minimization, reactive power limits, thermal limits of transmission lines, and reactive power optimization. Incorporating renewable energy sources optimized the power flow of system under different constraints. This work presents a comprehensive study of optimal power flows methods with conventional and renewable energy constraints. Additionally, this work presents a progress of optimal power flow solution from its beginning to its present form. Authors classify the optimal power flow methods under different constraints condition of conventional and renewable energy sources. The current and future applications of optimal power flow programs in smart system planning, operations, sensitivity calculation, and control are presented. This study will help the engineers and researchers to optimize power flow with conventional and renewable energy sources.

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“…A wind/PV + power grid combination is used in Ref. [6], whereas a PV/diesel/batery + power grid combination and a fuel cell/wind/ PV + power grid combination are used in Refs. [7] and [8], respectively.…”

Section: Introductionmentioning

confidence: 99%

Fuzzy Logic Energy Management for a Residential Power System Using Renewable Energy Sources

Breban¹,

Gros²,

Marginean³

et al. 2017

Modern Fuzzy Control Systems and Its Applications

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A fuzzy logic energy management algorithm is proposed for a hybrid wind/photovoltaic (PV) power generation unit, an electric vehicle batery, and a heat pump for household applications. The proposed concept refers to two independent power systems-a light electric vehicle and a household that interact through light, interchangeable bateries; moreover, they are powered from a renewable energy system comprising PV panels, wind generator, and appropriate MPPT-based converters. The main features of the concept are the heat pump load that produces thermal energy, as the main electric load of the system, and the storage element that is alternately used by the vehicle, which can be recharged from renewable sources. The presented algorithm allows the implementation, by means of fuzzy tools, of an appropriate energy management control system in order to obtain maximum utilization of the renewable energy. The results show that most of the energy required to charge the batery and to feed the heat pump can be covered from renewable sources.

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Optimal control of a wind–PV-hybrid powered heat pump water heater

Cited by 70 publications

References 39 publications

Optimal control of a fuel cell/wind/PV/grid hybrid system with thermal heat pump load

Optimal control of a fuel cell/wind/PV/grid hybrid system with thermal heat pump load

Optimal Power Flow Techniques under Characterization of Conventional and Renewable Energy Sources: A Comprehensive Analysis

Fuzzy Logic Energy Management for a Residential Power System Using Renewable Energy Sources

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