Generation Expansion Planning Model for Integrated Energy System Considering Feasible Operation Region and Generation Efficiency of Combined Heat and Power

Ko, Woong; Kim, Jin-Ho

doi:10.3390/en12020226

Cited by 29 publications

(15 citation statements)

References 33 publications

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“…In a low-carbon economy, the power supply side will be transformed from a single energy structure into a multi-energy structure in which new energy such as wind, light, and conventional energy are developed in concert. Because wind energy and solar energy are greatly affected by the climate, and the climatic conditions are uncontrollable and random, this results in the random uncertainty of photovoltaic and wind power output [30][31][32][33][34][35]. This feature makes the source-network-load model of the power system transform from load uncertainty to source load uncertainty, and the GEP problem becomes more complicated.…”

Section: Characteristics Of Generation Expansion Planning Under Low Cmentioning

confidence: 99%

Generation Expansion Planning Based on Dynamic Bayesian Network Considering the Uncertainty of Renewable Energy Resources

et al. 2019

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In generation expansion planning, sustainable generation expansion planning is gaining more and more attention. Based on the comprehensive consideration of generation expansion planning economics, technology, environment, and other fields, this paper analyzes the sustainable development of power supply planning evaluation indicators and builds a multi-objective generation expansion planning decision model considering sustainable development. According to the target variables in the model, the variables such as attribute variables are divided into different subsets, and the logical relationship analysis method between different nodes is obtained based on Dynamic Bayesian network theory, which reduces the complexity of the planning model problem. The application examples show the feasibility and effectiveness of the proposed model and the solution method.

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Section: Characteristics Of Generation Expansion Planning Under Low Cmentioning

confidence: 99%

Generation Expansion Planning Based on Dynamic Bayesian Network Considering the Uncertainty of Renewable Energy Resources

et al. 2019

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“…He therefore concentrated more on finding an economic installation of CHP [6]. Ko proposed a new optimization model of generation expansion planning for an integrated energy system considering the feasible operation region and efficiency of a combined heat and power (CHP) resource [7]. Heat-to-power ratio and generation efficiency were chosen as the two important parameters to verify that the proposed model could provide a cost-effective expansion plan.…”

Section: Introductionmentioning

confidence: 99%

Characteristics Analysis of the Heat-to-Power Ratio from the Supply and Demand Sides of Cities in Northern China

2020

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Combined heat and power (CHP), an efficient heating method with cascades use of energy, accounts for approximately 50% of the heat sources in northern China. Many researchers have made significant efforts to improve its energy efficiency and environmental effects with important achievements. Given that the system produces heat and electricity at the same time, this study focuses on the role of CHP in the holistic urban energy system and points out the mismatch between the demand and supply sides of urban energy systems by using the heat-to-power ratio as a parameter. The calculation method and characteristics of the supply side heat-to-power ratio of eight heating methods and the maximum demand side heat-to-power ratio for 19 cities in northern China are displayed. After the analysis, it is concluded that (1) the maximum demand side heat-to-power ratio in the cities varies from 1.0 to 5.9, which is affected by the location and social, economic, and industrial structures. (2) In most of the cities, with the current energy structure, the demand side heat-to-power ratios are always larger than the supply side heat-to-power ratios. (3) The reduction in heating demand, surplus heat recovery, and the use of a highly efficient electric heating method, such as the heat pump, can help solve the mismatch of the heat-to-power ratio between the demand and supply sides. These conclusions can guide the urban energy planning and system construction.

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“…At present, the combined operation of the heating system and electric power system (well known as combined heat and power system, CHPS) has been recognized as a promising approach to breaking through the limited flexibility of the independent electric power system. 4,5 By utilizing the energy storage of the heating system 6 or auxiliary heating devices, such as the heat storage (HS) 7 and power-to-heat (P2H) devices, 8,9 the joint production of electric and heat power of the CHP units can be decoupled, contributing to the ability enhancement of the electric power system for better wind power integration.…”

Section: Introductionmentioning

confidence: 99%

“…4,5 By utilizing the energy storage of the heating system 6 or auxiliary heating devices, such as the heat storage (HS) 7 and power-to-heat (P2H) devices, 8,9 the joint production of electric and heat power of the CHP units can be decoupled, contributing to the ability enhancement of the electric power system for better wind power integration. 4,5 By utilizing the energy storage of the heating system 6 or auxiliary heating devices, such as the heat storage (HS) 7 and power-to-heat (P2H) devices, 8,9 the joint production of electric and heat power of the CHP units can be decoupled, contributing to the ability enhancement of the electric power system for better wind power integration.…”

mentioning

confidence: 99%

Optimal operation of the combined heat and power system equipped with power‐to‐heat devices for the improvement of wind energy utilization

Chen

Lei

et al. 2019

Energy Science & Engineering

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The combined heat and power system (CHPS) is one important type of the integrated energy system in Northern China. Compared with the independently operated power system, the combined heat and power system (CHPS) has a great potential to improve the utilization of wind energy in virtue of the energy storage of the heating system and power‐to‐heat (P2H) devices. This paper studies the optimal operation of the CHPS equipped with the electric boiler (EB) and heat pump (HP). Comprehensive factors are considered, including P2H conversion, the thermal inertia of district heating network (DHN) and buildings, and adjustable heat loads. An equivalent model of the heating system is developed to express the direct mathematical relations between the heat source and heat loads. Redundant details of the DHN are simplified to reduce the complexity of the optimization problem. Furthermore, a self‐repair method incorporated with the real‐coded genetic algorithm (RCGA) is proposed to efficiently handle the nonlinear constraints. The effectiveness of the solving method is verified in case studies. The impacts of the EB and the HP on the CHPS are compared in details. The results show that the HP offers better performance than the EB on coal saving and improving wind power integration.

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Generation Expansion Planning Model for Integrated Energy System Considering Feasible Operation Region and Generation Efficiency of Combined Heat and Power

Cited by 29 publications

References 33 publications

Generation Expansion Planning Based on Dynamic Bayesian Network Considering the Uncertainty of Renewable Energy Resources

Generation Expansion Planning Based on Dynamic Bayesian Network Considering the Uncertainty of Renewable Energy Resources

Characteristics Analysis of the Heat-to-Power Ratio from the Supply and Demand Sides of Cities in Northern China

Optimal operation of the combined heat and power system equipped with power‐to‐heat devices for the improvement of wind energy utilization

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