NDLI: Optimal joint-dispatch of energy and reserve for CCHP-based microgrids

Content Provider	IET Digital Library
Author	Wang, Jianxiao Zhong, Haiwang Xia, Qing Kang, Chongqing Du, Ershun
Abstract	With the rapid growth of distributed energy resources (DERs) and microgrids (MGs), the volatility of renewable generations will impact the economical and secure operation of the power system. To exert the grid-friendly manner of MGs, an optimal joint-dispatch scheme of energy and reserve is proposed in this study for combined cooling, heating and power (CCHP)-based MGs. In the scheme, the total operation cost of the MG is minimized under pre-defined reserve requirements. The energy demands are satisfied via dispatching various DERs. Distinguished from the electric demand balanced at any given instant, the unbalance between thermal supply and demand is acceptable because the temperatures can be maintained due to the thermal inertia. When the electric supply is in shortage, the energy provided for the thermal systems can be temporarily reduced so that more energy can be utilised to support the electrical systems. The dynamics of the MG is modelled by discretising thermal balance differential equations. With the coordination of CCHP systems, the reserve capability of the MG is fully utilised, thereby ensuring the security of the bulk power system. Case studies based on an industrial park in Chicago, USA validate that the proposed scheme can provide more reserve capability.
Starting Page	785
Ending Page	794
Page Count	10
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 3, Feb (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.0656
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-02-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	CCHP-based Microgrid Cogeneration Combined Cooling, Heating And Power-based Microgrid Differential Equation (numerical Analysis) Distributed Energy Resources Distributed Power Generation Electric Demand Energy Storage System Heat Pumps Mathematical Analysis Micro Turbines Optimal Joint-dispatch Scheme Photovoltaic System Power Generation Dispatch Power System Economics Power System Managemen Power System Operation Renewable Generation Thermal Balance Differential Equation Thermal Power Stations And Plant Thermal Supply And Demand Wind Turbine
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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