A Dynamic Power Flow Model Considering the Uncertainty of Primary Frequency Regulation of System

Chen, Daojun; Zhou, Nianguang; Li, Chenkun; Guo, Hu; Cui, Tongtong

doi:10.1007/978-3-030-12082-5_39

Cited by 2 publications

(4 citation statements)

References 9 publications

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“…(1) However, f and L depends on the PFR and SFR contributions themselves. To overcome this limitation, f and L are typically estimated by the two following wellknown relations given by [1]: (2) where K' [MW/Hz] is the sum of all the PFC of the generators participating to the PFR and of the load, K'' [MW] is the sum of all secondary control reserves, and Δp is the active power perturbation.…”

Section: A Motivationsmentioning

confidence: 99%

“…Such disturbances (load/generator shedding, line tripping, etc.) are the ones occurring in real power systems and are increasingly frequent with the vRES integration, characterized by intermittent generation [2].…”

Section: A Motivationsmentioning

confidence: 99%

“…In 1986, the first contribution introducing the concept of dynamic power flow was presented in [3] being based on the DSB model [4]. The dynamic power flow models [2], [3], [5][6][7][8][9] consist in distributing any power unbalances, after the occurrence of a disturbance, among all the generators, by considering the frequency deviation inside the model.…”

Section: B Literature Reviewmentioning

confidence: 99%

“…From a practical standpoint, the dynamic power flow problem is becoming important today, due to increasing presence of vRES in power systems. In [2], [8], [9] a stochastic approach to dynamic power flow is proposed, considering the PFR uncertainties in networks with high vRES penetration. In [7], an iterative dynamic power flow model attempts to update the power flow solutions based on PFR in presence of high wind generation.…”

Section: B Literature Reviewmentioning

confidence: 99%

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Dynamic Power Flow Modeling Primary and Secondary Frequency Regulations

Benato,

Gardan,

Sanniti

2024

IEEE Access

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In power systems, the steady-state operations following any disturbance can be assessed by means of time-domain simulations, which consider the dynamic of the system without simplifying hypotheses. This paper proposes a formulation of the power flow problem with distributed slack bus model able to determine the steady-state impact on frequency and generation set-points of primary and secondary frequency regulation. This is done by deriving the real power balance expressions (including power losses, primary/secondary regulation, and the real frequency deviation) before and after the occurrence of any event or disturbance. This is achieved without resorting to the solution of a time-domain simulation. The performance of the proposed formulation is discussed through the standard WSCC 9-bus system and a 102bus model of the Sicilian grid. Solutions are compared with those obtained with conventional time-domain simulations.

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Section: A Motivationsmentioning

confidence: 99%

Section: A Motivationsmentioning

confidence: 99%