Quasi-dynamic interactions and security control of integrated electricity and heating systems in normal operations

Zhang, Pan; Wu, Jianzhong; Sun, Hongbin; Guo, Qinglai; Abeysekera, Muditha

doi:10.17775/cseejpes.2018.00240

Cited by 31 publications

(38 citation statements)

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“…Admittedly, ignoring the different time scales and heat inertia is an effective way to simplify the economic dispatch model. However, a part of dispatch commands may not be executed in practice because of the slow response of the heating system whose dynamic process varies from dozens minute to several hours [12].…”

Section: B Related Workmentioning

confidence: 99%

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Asynchronous Economic Dispatch for Combined Heat and Power Systems

Qin

Sun

Guo

2020

IEEE Open J. Power Energy

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In the day-ahead economic dispatch of combined heat and power systems, the electric power system is adjusted in minutes because of the short dynamic time and the requirement of real-time power balance, while the heating system is dispatched in hours due to its large inertia and long dynamic process. However, the different dispatch time scales of electricity and heat are ignored by existing synchronous dispatch methods, which limits the improvement of system efficiency. To address this challenge, in this paper, the asynchronous dispatch method is proposed and instantiated by two different dispatch models featuring a short electric dispatch time scale and a long heat dispatch time scale. Case studies demonstrate the asynchronous dispatch method can overcome the efficiency and reliability problems caused by the existing synchronous dispatch methods.  Index Terms-combined heat and power system, different time scales, economic dispatch, dispatch interval.

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Section: B Related Workmentioning

confidence: 99%

“…TT  . For source nodes , S it T is calculated using (12). Similarly, in the heat return network, for load nodes , R it T is calculated using (13).…”

Section: Heating System Constraintsmentioning

confidence: 99%

Asynchronous Economic Dispatch for Combined Heat and Power Systems

Qin

Sun

Guo

2020

IEEE Open J. Power Energy

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“…Sauter et al [61] analyzes the impact of electro-thermal storage (ETS) system on the operation of community microgrid in northern China, and proved that ETS can signi cantly reduce the operating cost of the system and better absorb wind and solar energy. Pan et al [62] develops an integrated quasidynamic model of integrated electricity and heating systems, a simulation method is proposed and quasi-dynamic interactions between electricity systems and heating systems are quanti ed with the highlights of transport delay, results show that both the transport delay and control strategies have signi cant in uences on the quasi-dynamic interactions.…”

Section: Complexitymentioning

confidence: 99%

A Survey on Optimal Control and Operation of Integrated Energy Systems

Wei

Zhang

et al. 2019

Complexity

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At present, the transformation of energy structure is at a critical stage, and emerging renewable energy technologies and multienergy equipment have been widely used. How to improve the energy efficiency of integrated energy system (IES) and promote large-scale absorption of renewable energy is of great significance to the application forms of energy in the future. The development of new internet technology and sensor technology provides strong technical support for the optimal operation and coordinated control of IES. In recent years, the IES is experiencing unprecedented changes, which has attracted great attention from academia and industry. In this paper, the optimal control and operation behavior of IES are reviewed. Firstly, the research status of IES in recent years is summarized. Then, the modeling methods of different equipment in IES are analyzed in detail. The optimal operation of user, regional, and cross-regional IES are taken as typical research objects and the research status of optimization problems and operation modes, energy management planning, and power market allocation are summarized and analyzed. Finally, the key scientific issues and related frontier technologies in the IES are concluded, and the future research directions are prospected.

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“…One of the advantages of this simulation strategy is that it offers a faster way to complete the calculations because it does not require to solve all the mathematical requirements, which means a faster computation process with fewer hardware resources. Other works [16], [19], [20], indicate that the quasi-dynamic approach achieves better fidelity than other methods, such as the quasi-static [21], [22], [23], [16]. For that reason, quasidynamic simulations are used in different fields like physics, seismology, and electronic applications [8], [9], [19].…”

Section: Digsilent®mentioning

confidence: 99%

“…Other works [16], [19], [20], indicate that the quasi-dynamic approach achieves better fidelity than other methods, such as the quasi-static [21], [22], [23], [16]. For that reason, quasidynamic simulations are used in different fields like physics, seismology, and electronic applications [8], [9], [19].…”

Section: Digsilent®mentioning

confidence: 99%

Quasi-Dynamic Analysis of a Local Distribution System with Distributed Generation. Study Case: The IEEE 13 Node System

Gaitan

Gómez

Trujillo

2019

TecnoL.

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Distributed generation is one of the most accepted strategies to attend the increase in electrical demand around the world. Since 2014, Colombian government agencies have enacted laws and resolutions to promote and regulate the introduction of different generation technologies into the country’s electrical system. The incorporation of distributed generation systems into conventional distribution networks can cause problems if technical studies are not previously carried out to determine the consequences of the start of the operations of these new generation technologies. This scenario represents a new challenge for distribution networks operators because they must ensure that their systems can integrate these new generation sources without affecting the correct operation of the grid. In this article, the IEEE 13 nodes system is modified by incorporating the load curves of the three types of consumers in the Colombian electricity market into the model. Additionally, distributed generation systems from non-conventional sources of energy are integrated into two system nodes in order to perform a quasi-dynamic analysis of the different electrical variables, which can be used to determine the impact of these new technologies on a local distribution system. The voltage profiles and active and reactive power do not show considerable changes in the behavior of the electrical network; however, in the simulation scenarios where distributed generators are operating, the system exhibits a considerable increase in lines losses. There are two alternatives to manage these unusual levels in the operation of the nodes with distributed generation: (1) operating these new DG nodes in islanded mode or (2) strengthening the local distribution system through the implementation of new distribution lines in the network.

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Quasi-dynamic interactions and security control of integrated electricity and heating systems in normal operations

Cited by 31 publications

References 0 publications

Asynchronous Economic Dispatch for Combined Heat and Power Systems

Asynchronous Economic Dispatch for Combined Heat and Power Systems

A Survey on Optimal Control and Operation of Integrated Energy Systems

Quasi-Dynamic Analysis of a Local Distribution System with Distributed Generation. Study Case: The IEEE 13 Node System

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