Electrical model and control method of heat pump water heaters for promoting renewable integration

Dang, Can; Wang, Xifan; Wang, Xiuli; Xiao, Yanfeng; Gong, Benhui; Fang, Yujuan

doi:10.1109/ciced.2016.7576136

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…The uninterruptible load, flexible load, non-deferrable load, and thermostatically controlled load are adjusted following the operational constraints in [42][43][44], respectively. The relationship between the original load profile and the adjusted load profile is therefore concluded by the linear function f ðÁÞ in 29, which is not detailed in this paper.…”

Section: Income and Constraints Of Aggregatormentioning

confidence: 99%

Distributed generation planning for diversified participants in demand response to promote renewable energy integration

Dang

Wang

Shao

et al. 2019

J. Mod. Power Syst. Clean Energy

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In modern distribution system, the distribution system operator (DSO) acts as a market facilitator and data manager as well as an energy supplier and operation controller. In this circumstance, the DSO should comprehensively consider the diversified participants of the modern distribution system when making investment decisions of distributed generation (DG). This paper proposes a DG planning model considering the behavior of the diversified participants, which are motivated to cooperate with distributed renewable energy resources to promote their integration, and to achieve the optimal DG investment plan. The optimization model takes a centralized structure but fully considers the preferences, profits and comfort levels of the aggregators and consumers. The model is linearized into a mixed-integer linear programming (MILP) problem and is solved by CPLEX. Results of the case study show that when the DSO spares subsidies to the aggregators and consumers to encourage their participation in demand response (DR) programs, it earns more compared with providing no subsidies for DR participation. It is also demonstrated that the overall profit increases as the subsidies increase within a certain range, but decreases when the subsidies exceed this range. Therefore, the DSO needs to carefully choose the subsidization level to achieve the optimal utilization of renewable energy and demand flexibility. The optimal subsidization level is derived from the model proposed in this paper. Therefore, this paper puts forward a new pattern to utilize the distributed renewable energy sources, and provides guidance in policy making and DR program implementation.

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Section: Income and Constraints Of Aggregatormentioning

confidence: 99%

Distributed generation planning for diversified participants in demand response to promote renewable energy integration

Dang

Wang

Shao

et al. 2019

J. Mod. Power Syst. Clean Energy

Self Cite

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show abstract

“…To simplify the expression, we assume n = 1 for WH and n = 2 for AC. WHs are controlled by the required water temperature and hot water volume, which are included in the heat balance equation [24], as described below:…”

Section: Consumers' Participation In Dr Programmesmentioning

confidence: 99%

DG planning incorporating demand flexibility to promote renewable integration

Dang

Wang

et al. 2018

IET Generation, Transmission & Distribution

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“…Equality constraint (27) represents power balance in the system, whereby, power from renewable energy sources and grid are used to meet the demand from hot water devices together with the domestic load during every sampling interval, j. Constraints (28) and (29) show the state variables, that is, temperature of water from HPWH and instantaneous shower respectively, must be between set minimum and maximum acceptable temperature in every sampling interval, j. Constraints (30)- (32) show how the control variables are bound.…”

Section: Mpc Optimization Problemmentioning

confidence: 99%

“…HPWHs are not only ideal in enhancing EE for domestic hot water systems [24], but have also been proven to be economically feasible [27]. Further, it is possible to shift the load using HPWHs increasing the prospect of integrating it with renewable energy sources [28]. Various control algorithms aiming to reduce energy consumption and its associated cost have been developed.…”

Section: Introductionmentioning

confidence: 99%

Model predictive control of heat pump water heater-instantaneous shower powered with integrated renewable-grid energy systems

2017

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Electrical model and control method of heat pump water heaters for promoting renewable integration

Cited by 8 publications

References 7 publications

Distributed generation planning for diversified participants in demand response to promote renewable energy integration

Distributed generation planning for diversified participants in demand response to promote renewable energy integration

DG planning incorporating demand flexibility to promote renewable integration

Model predictive control of heat pump water heater-instantaneous shower powered with integrated renewable-grid energy systems

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