Bilevel economic operation of distribution networks with microgrid integration

Zhang, Hong; Zhao, Dongmei; Gu, Chenghong; Li, Furong

doi:10.1063/1.4917556

Cited by 12 publications

(3 citation statements)

References 24 publications

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“…Micro turbines are the core equipment in the building CCHP system. In this paper, the energy supply model of micro turbines is established based on Capstone C1000 system [11]- [13]. Capstone C1000 system is a power generation system with characteristics of strong adaptability, low emission and low maintenance cost, which is composed of five Capstone C200 units.…”

Section: Energy Supply Equipment Of Building Cchp System a Micrmentioning

confidence: 99%

A Day-Ahead Optimal Economic Dispatch Schedule for Building CCHP System Based on Centralized Energy Storage Infrastructure

Zeng¹,

Hao²,

Xu³

et al. 2018

ElAEE

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This paper proposes a day-ahead optimal economic dispatch model for building Combined Cooling, Heat and Power (CCHP) system based on centralized energy storage infrastructure. In the model, the loads are met by the centralized energy storage equipment directly, and the storage equipment are charged by varieties of energy supply devices in the energy station of the building CCHP system. The model is solved by the interior point method with Hessian matrix iteration. Simulation results show that by performing the schedule made by the dispatch model, the storage status of the centralized energy storage fluctuates in large dynamic range by flexible charging and discharging and the daily operation cost of the building CCHP system decreases remarkably compared with other traditional schedule strategies. Index Terms-Combined cooling, heat and power; CCHP; Centralized energy storage infrastructure; Interior point method; Optimal economic dispatch.

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Section: Energy Supply Equipment Of Building Cchp System a Micrmentioning

confidence: 99%

A Day-Ahead Optimal Economic Dispatch Schedule for Building CCHP System Based on Centralized Energy Storage Infrastructure

Zeng¹,

Hao²,

Xu³

et al. 2018

ElAEE

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“…In (Fathi, 2017) in fact, the distribution grid is not modeled. In (Zhang, H et al, 2015) the economic utilization of a MG is independent from that of a distribution network;…”

Section: Introductionmentioning

confidence: 99%

Modeling interaction between distribution company and networked microgrids in optimal operation of active distribution network

Hamedi

Talavat

Tofighi

et al. 2021

JER is an international, peer-reviewed journal that publishes f

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In this paper, the interaction between energy sellers and buyers in utilizing active distribution networks is modeled with considering two networked and non-networked modes of microgrids (MGs). A retail electricity market is modeled as a bi-level problem. Accordingly, the Distribution Company (DISCO) in the upper level in order to maximize the profit offers an optimal price to MGs. While in the lower level, the MGs to compare the offered prices by DISCO with the prices of MGs generation sources for minimizing the total costs decided to whether to buy from the DISCO or not. As the first contribution of the paper is to consider the networked operation of the MGs under a unique beneficiary of MGs (BMG). As the second contribution, two very important indices reserve and self-adequacy are considered, which are necessary in the problems related to MGs. In this paper, the impact of considering and disregarding two important reserve and self-adequacy indices of MGs on the profit of the DISCO in two different scenarios is investigated. In each scenario, the impact of considering two modes networked and non-networked of MGs on the profit of DISCO is investigated. Simulation results show the efficiency the presented model.

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“…This kind of technology can yield a high-reliable regional power system with favourable economy and flexible power supply capacity. As a crucial technology of smart grid, the MG can make up the disadvantages existing in centralized power supply grid and alleviate the influence of distributed generators (DGs) fluctuation on utility grid [8,9]. Owning to the aforesaid superiorities, the MG has become an excellent candidate for accepting high permeability DGs into the power grid.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Sliding‐Mode Control in Bus Voltage for an Islanded DC Microgrid

Zhang

Wang

2017

Mathematical Problems in Engineering

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The control of bus voltage is a crucial task for the stable operation of islanded DC microgrids. To improve the DC bus voltage control dynamics and stability, this paper proposes an adaptive sliding-mode control method based on large-signal model. The slidingmode control, adaptive observation, and fix-frequency pulse width modulation technology are adopted and combined efficiently, which guarantee stable bus voltage and the constant switching frequency of closed-loop system, regardless of how the parameters vary with the variable constant-power loads and uncertainties. In addition, the reference values can be quickly tracked by the state variables using the proposed method without any additional sensors/hardware circuits. Therefore, this method is beneficial for the scalability and plug-play of the distributed generators and loads within the DC microgrids. The performance of the proposed control method has been successfully verified in simulation.

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Bilevel economic operation of distribution networks with microgrid integration

Cited by 12 publications

References 24 publications

A Day-Ahead Optimal Economic Dispatch Schedule for Building CCHP System Based on Centralized Energy Storage Infrastructure

A Day-Ahead Optimal Economic Dispatch Schedule for Building CCHP System Based on Centralized Energy Storage Infrastructure

Modeling interaction between distribution company and networked microgrids in optimal operation of active distribution network

Adaptive Sliding‐Mode Control in Bus Voltage for an Islanded DC Microgrid

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