Integrated Power and Heat Dispatch Considering Available Reserve of Combined Heat and Power Units

Zhou, Yifan; Hu, Wei; Min, Yong; Dai, Yong

doi:10.1109/tste.2018.2865562

“…, , CHP G wd EB load N , , , , where (9)- (12) are generation capacity constraints of CHP units and thermal units considering reserve capacity, respectively, (13)- (14) indicate the scheduled reserve capacity of generating units should be smaller than corresponding ramping rate, (15)- (16) are the ramping rate limits of generating units, (17) is the power flow limit for each transmission line, (18) ensures the power balance for each bus.…”

Section: Day-ahead Operation Constraints Of Epsmentioning

confidence: 99%

“…Ref. [16] presented a regulating region method to properly assess the available reserve capacity of CHP units. However, the reserve capacity allocation in these researches is obtained according to the pre-defined minimum reserve requirements based on operators' experiences.…”

Section: Introductionmentioning

confidence: 99%

Decentralized robust energy and reserve Co-optimization for multiple integrated electricity and heating systems

Tan

¹

,

Wu

²

,

Wei

³

et al. 2020

Energy

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“…In the above model, (62) and (63) are the matrix forms of time-domain constraints (26)-(56). (64) is the matrix form of frequency-domain constraints (11), (15), (17), (21) and (22). (65) is the matrix form of inverse Fourier transform (20).…”

Section: E Matrix Form Of the Ihed Modelmentioning

confidence: 99%

“…References [18]- [20] also studied IHED and adopted the NM to take into account the thermal inertia. In [21]- [22], a simplified NM was used to study IHED in which the time delay of a pipeline was approximate to an integer multiple of the dispatch interval. Reference [23] studied the transfer function of a DHN in the Laplace domain and used the inverse Laplace transform T to establish a discrete time-domain relationship between the heat source and heat load.…”

mentioning

confidence: 99%

Integrated Heat and Electricity Dispatch for District Heating Networks with Constant Mass Flow: A Generalized Phasor Method

Chen¹,

Guo²,

Sun³

et al. 2020

Preprint

0

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Using thermal inertia in district heating systems (DHSs) to improve the dispatch flexibility and economy of integrated heat and electricity systems (IHESs) is a research hotspot and difficulty. In most existing studies, the partial differential equations (PDEs) of thermal inertia are approximated by discrete-time models, making it difficult to accurately describe the continuous dynamic processes. In this paper, we propose a novel generalized phasor method (GPM) for thermal inertia in DHSs with constant mass flow. Based on the analytical solution of the PDEs and the Fourier transform, the intractable PDEs are transformed into a series of complex algebraic equations represented by phasors. The GPM has higher accuracy compared to traditional discrete models because it is essentially a continuous model in the time domain. Then, we present a different representation of an integrated heat and electricity dispatch (IHED) model combining a DHS model in phasor form and a traditional electrical power system model. The IHED model is a convex programming problem and can be easily solved. The effectiveness of the proposed GPM and dispatch model is verified in three test systems. Compared with traditional methods for modeling the thermal inertia, the proposed GPM is more accurate.

show abstract

“…In the above model, (62) and (63) are the matrix forms of time-domain constraints (26)-(56). (64) is the matrix form of frequency-domain constraints (11), (15), (17), (21) and (22). (65) is the matrix form of inverse Fourier transform (20).…”

Section: E Matrix Form Of the Ihed Modelmentioning

confidence: 99%

Integrated Heat and Electricity Dispatch for District Heating Networks with Constant Mass Flow: A Generalized Phasor Method

Chen¹,

Guo²,

Sun³

et al. 2020

Preprint

0

View full text Add to dashboard Cite

Using thermal inertia in district heating systems (DHSs) to improve the dispatch flexibility and economy of integrated heat and electricity systems (IHESs) is a research hotspot and difficulty. In most existing studies, the partial differential equations (PDEs) of thermal inertia are approximated by discrete-time models, making it difficult to accurately describe the continuous dynamic processes. In this paper, we propose a novel generalized phasor method (GPM) for thermal inertia in DHSs with constant mass flow. Based on the analytical solution of the PDEs and the Fourier transform, the intractable PDEs are transformed into a series of complex algebraic equations represented by phasors. The GPM has higher accuracy compared to traditional discrete models because it is essentially a continuous model in the time domain. Then, we present a different representation of an integrated heat and electricity dispatch (IHED) model combining a DHS model in phasor form and a traditional electrical power system model. The IHED model is a convex programming problem and can be easily solved. The effectiveness of the proposed GPM and dispatch model is verified in three test systems. Compared with traditional methods for modeling the thermal inertia, the proposed GPM is more accurate.

show abstract

Integrated Power and Heat Dispatch Considering Available Reserve of Combined Heat and Power Units

Cited by 75 publications

References 25 publications

Decentralized robust energy and reserve Co-optimization for multiple integrated electricity and heating systems

Decentralized robust energy and reserve Co-optimization for multiple integrated electricity and heating systems

Integrated Heat and Electricity Dispatch for District Heating Networks with Constant Mass Flow: A Generalized Phasor Method

Integrated Heat and Electricity Dispatch for District Heating Networks with Constant Mass Flow: A Generalized Phasor Method

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