Demand response impacts on off-grid hybrid photovoltaic-diesel generator microgrids

Leger, Aaron St.
July 2015
AIMS Energy;Jul2015, Vol. 3 Issue 3, p360
Academic Journal
Hybrid microgrids consisting of diesel generator set(s) and converter based power sources, such as solar photovoltaic or wind sources, offer an alternative to generator based off-grid power systems. The hybrid approach has been shown to be economical in many off-grid applications and can result in reduced generator operation, fuel requirements, and maintenance. However, the intermittent nature of demand and renewable energy sources typically require energy storage, such as batteries, to properly operate the hybrid microgrid. These batteries increase the system cost, require proper operation and maintenance, and have been shown to be unreliable in case studies on hybrid microgrids. This work examines the impacts of leveraging demand response in a hybrid microgrid in lieu of energy storage. The study is performed by simulating two different hybrid diesel generator--PV microgrid topologies, one with a single diesel generator and one with multiple paralleled diesel generators, for a small residential neighborhood with varying levels of demand response. Various system designs are considered and the optimal design, based on cost of energy, is presented for each level of demand response. The solar resources, performance of solar PV source, performance of diesel generators, costs of system components, maintenance, and operation are modeled and simulated at a time interval of ten minutes over a twenty-five year period for both microgrid topologies. Results are quantified through cost of energy, diesel fuel requirements, and utilization of the energy sources under varying levels of demand response. The results indicate that a moderate level of demand response can have significant positive impacts to the operation of hybrid microgrids through reduced energy cost, fuel consumption, and increased utilization of PV sources.


Related Articles

  • Evaluation of Different Hybrid Energy Potential in AL-Arish. Attala, Ahmed M.; Taha, A. T. M.; Ryad, Ahmed K. // International Journal of Computer Applications;Feb2014, Vol. 88, p13 

    This paper presents the potential impact of various energy generation utilizing wind turbines, photovoltaic cell, fuel cell and diesel generation for AL-Arish, Sinai, Egypt. In addition to investigating the feasibility for each combination where they are simulated using Hybrid Optimization...

  • Feasibility Study of Isolated PV-Wind Hybrid System in Egypt. Dawoud, Samir M.; Lin Xiangning; Sun Jinwen; Okba, Merfat Ibrahim; Khalid, Muhammad Shoaib; Waqar, Asad // Advanced Materials Research;2014, Vol. 1092-1093, p145 

    This paper proposes the possibility of using the diesel generator with renewable energy sources (RES) and compares the cost of energy of isolated pv-wind-diesel-battery-converter hybrid system with a stand-alone diesel generator for a rural region in Egypt. The isolated system is also evaluated...

  • Assessment of utilizing stand-alone renewable energy scenarios to feed a passenger service station in Saudi Arabia. Anagreh, Yaser; Alshammari, Badr // Przeglad Elektrotechniczny;2016, Vol. 92 Issue 11, p221 

    This paper is directed to simulate, analyze and assess different off-grid renewable supply options to feed a proposed passenger services station on Al-Nafud dessert / Saudi Arabia. The results show that wind only and off-grid hybrid wind/PV schemes are technically visible and economically vital....

  • Cost-effective sizing of an AC mini-grid hybrid power system for a remote area in South Australia. Combe, Matthew; Haque, Mohammed H.; Mahmoudi, Amin; Khezri, Rahmat // IET Generation, Transmission & Distribution;2019, Vol. 13 Issue 2, p277 

    This study determines the optimal capacity of various components of an AC mini-grid hybrid power system in a remote area of South Australia. A range of generation and storage technologies, such as diesel generators, wind turbines, solar photovoltaic arrays, battery banks, and flywheels are...

  • CRSO approach for microgrid power dispatching. Haifeng Qiu; Wei Gu; Peng Li; Xuesong Zhang; Huan Long; Zhi Wu // IET Generation, Transmission & Distribution;2019, Vol. 13 Issue 11, p2208 

    The optimal dispatch of microgrids is greatly challenged by various uncertainties, introduced by dynamic power fluctuations in loads and variations in renewable energy sources. To depress the over-conservativeness of traditional robust optimisation, this study puts forward a two-stage coupled...

  • Energy scheduling strategy for a photovoltaic/batteries bank/diesel generator power supply system for an off-grid house. Charfi, Sana; Brahmi, Nabiha; Atieh, Ahmad; Chaabene, Maher // Journal of Renewable & Sustainable Energy;2018, Vol. 10 Issue 1, p1 

    A novel algorithm is proposed to control the overall energy produced by a photovoltaic/battery bank/diesel generator renewable energy system. A renewable energy system is used to supply an off-grid connected house in Sfax, Tunisia. The algorithm computes recurrently the battery depth of...

  • A novel methodology for scrutiny of autonomous hybrid renewable energy system. Sawle, Yashwant; Gupta, S. C.; Bohre, Aashish Kumar // International Journal of Energy Research;Feb2018, Vol. 42 Issue 2, p570 

    Summary: The optimal design of a hybrid system with different configurations including renewable generation is presented in this paper. A novel multi‐objective function consisting of 6 different objectives of hybrid system is reported using GA, PSO, and TLBO to decide the optimal...

  • Energy Simulation of PV Hybrid System for Remote Villages of Thailand. Jitiwat Yaungket; Tetsuo Tezuka; Boonyang Plangklang // Energy & Power Engineering;Jun2013, Vol. 5 Issue 4, p307 

    A surveys conducted in remote rural areas revealed that some people still do not have access to electricity. Subsequently, the Ministry of Interior was assigned to invite relevant agency to a meeting designed to assist those without access to electricity the opportunity to enjoy electricity...

  • Effective Battery Management Controller with Flc Based Charging Controller for Solar-Diesel Hybrid Power System. Raju, P.; Vijayan, S. // Advances in Natural & Applied Sciences;Jul2014, Vol. 8 Issue 8, p53 

    The effective utilization of power from renewable energy is more crucial than power generation. This paper proposes standalone solar power system for a rural area with uninterrupted power. The uninterrupted power is essential for many applications. In this proposed system Solar power system with...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics