Non-Iterative Semi-Implicit Integration Method for Active Distribution Networks With a High Penetration of Distributed Generations

Liu, Weiqi; Gu, Wei; Li, Peixin; Cao, Ge; Shi, Wenbo; Liu, Wei

doi:10.1109/tpwrs.2020.3003367

Cited by 6 publications

(4 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The history current sources of the BLM between subsystems m and n are given by the following equations. Here, both 𝜏 mn and 𝜏 nm denote the propagation delay of the BLM between subsystems m and n, thus, 𝜏 mn = 𝜏 nm ; i ′ m (t − 𝜏 mn ) and i ′ n (t − 𝜏 nm ) denote the variables without interaction of the BLMs inside subsystems m and n, respectively; i ′′ m (t − 𝜏 mn ) represents the interface variables transferred from the subsystem n to m, and vice versa is represented by the vector i ′′ n (t − 𝜏 nm ); D 1 t , D 2 t , D 3 t , and D 4 t are the coefficient vectors, whose expressions can be found in [19] and are not included due to space limitations.…”

Section: Network Decompositionmentioning

confidence: 99%

“…With the increasing penetration of distributed generators (DGs) and energy storage systems, power distribution systems have evolved from passive networks to active distribution networks (ADNs) [1,2]. Although this transition has paved the way for more sustainable power grids, it poses challenges to the secure and stable operation of power systems [3].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Asynchronous multi‐rate method of real‐time simulation for active distribution networks

Wang

et al. 2022

IET Renewable Power Gen

View full text Add to dashboard Cite

The real-time simulation of active distribution networks (ADNs) can provide an accurate insight into transient behaviours, but faces challenges in simulation efficiency and flexibility brought by larger system scales and wider time-scale ranges. This paper presents an asynchronous multi-rate (AMR) method and design for the real-time simulation of large-scale ADNs. In the proposed method, the entire ADN was decoupled into different subsystems according to accuracy requirements, and optimized time-steps were allocated to each subsystem to realize a fully distributed simulation. This not only alleviated the time-step coordination problem existing in multi-rate real-time simulations, but also enhanced the flexible expansion capabilities of the real-time simulator. To realize the AMR real-time simulation, a multi-rate interfacing method, synchronization mechanism, and data communication strategy are proposed in this paper, and their hardware design is also presented in detail. A modified IEEE 123-node system with photovoltaics and wind turbine generators was simulated on a 3 field-programmable gate arrays (FPGAs)-based AMR realtime simulator. The real-time results were captured by the oscilloscope and verified with PSCAD/EMTDC, which demonstrated the superiority in simulation flexibility and accuracy compared with the synchronous multi-rate (SMR) method.

show abstract

Section: Network Decompositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Asynchronous multi‐rate method of real‐time simulation for active distribution networks

Wang

et al. 2022

IET Renewable Power Gen

View full text Add to dashboard Cite

show abstract

“…While authors in Reference 40 presented a proposed controller based on STATCOM for the PVGUs called PV‐STATCOM to provide fast frequency response and ensure damping in power oscillation to enhance system stability. Authors in Reference 41 improved the system stability by integrating the DGs in the LVDNs based on an adaptive Jacobian matrix to solve the differential equations of the connected DGs to support active power and eliminate disturbance. In Reference 42, a novel frequency regulation method is introduced based on the droop control and virtual inertia control to improve the system stability, enhance the frequency response, and obtain convenient accuracy and tracking speed.…”

Section: Impact Of Excessive Penetration Of Pv Systems In Lvdnsmentioning

confidence: 99%

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Hamza

Sedhom

Badran

2021

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

This paper presents an overview of the impact of high penetration of photovoltaic (PV) systems in low-voltage distribution networks (LVDNs). High integration of solar PVs in the LVDNs has severe implications on the system parameters, efficiency, and stability. This paper also introduces the methods that have been driven to overcome these effects to preserve the steady-state conditions in the system during excessive penetration of PV generation units. A comparison between the contributions and shortcomings of the most recent researches for overvoltage mitigation strategies has been driven. Also, it includes comparing different overvoltage mitigation methods to handle the impact of the overvoltage under high penetration of PV units in the LVDNs. Besides, it presents a comparison between overvoltage mitigation methods based on their pros and cons.

show abstract

“…It can provide the voltage support and improve the controllability of DN, which creates a large and adjustable space for optimization. Active distribution network (ADN) is the future form of DN, which is a technical way to integrate DG and improve the intelligence of DN (Liu et al, 2021;Xiao et al, 2021). The ADN is not only a DN with DG but also has a number of controllable devices and a variety of control strategies.…”

Section: Introductionmentioning

confidence: 99%

Day-Ahead Optimal Dispatch for Active Distribution Network Considering Probability Model of Controllable Distributed Generation

et al. 2022

View full text Add to dashboard Cite

In this paper, the probabilistic model of the controllable distributed generation in active distribution network is developed and applied to the daily stochastic optimal dispatch. The probabilistic characteristics of photovoltaic power generation system with active control capability are explored, and the relationship between the reference value of active power and its cumulative distribution function and mean value is obtained. The active power probability model of wind power generation system is improved according to the actual wind speed power curve. By fully utilizing the inverter capacity and coordinating active power, the reactive power of distributed generation is actively controlled under the constraint of power factor. Then considering the chance constraints, a daily optimal scheduling model for active distribution network with the goal of minimizing the operating cost of distribution network is developed, and the constraints that can calculate the charge and discharge times of the energy storage system are designed. The chance constrained programming is solved by the heuristic method, and the deterministic optimization steps are solved by the second-order cone programming method, respectively. The probabilistic power flow method based on stochastic response surface method is utilized to test chance constraints. Finally, the modified IEEE33 node distribution system example shows that the obtained models and algorithms are correct and can meet the requirements of safe and economic operation.

show abstract

Non-Iterative Semi-Implicit Integration Method for Active Distribution Networks With a High Penetration of Distributed Generations

Cited by 6 publications

References 25 publications

Asynchronous multi‐rate method of real‐time simulation for active distribution networks

Asynchronous multi‐rate method of real‐time simulation for active distribution networks

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Day-Ahead Optimal Dispatch for Active Distribution Network Considering Probability Model of Controllable Distributed Generation

Contact Info

Product

Resources

About