Reduced-Order Transfer Function Model of the Droop-Controlled Inverter via Jordan Continued-Fraction Expansion

Wang, Rui; Sun, Qiuye; Zhang, Pinjia; Gui, Yonghao; Qin, Dehao; Wang, Peng

doi:10.1109/tec.2020.2980033

Cited by 112 publications

(54 citation statements)

References 34 publications

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“…Thus, the stability of the inner voltage and current controller can be ensured in advance by tuning their bandwidth to satisfy the standard bandwidth ratio design criterion [24]. Furthermore, the PLL controller parameters can be represented in light of ω n and ζ, where k PLL p = 2ζω n and k PLL i = ω 2 n . The natural frequency ω n can be chosen as the indicator of the PLL bandwidth, and ζ is the damping factor [25].…”

Section: F Stability Analysis Of Ac-busbar Pev Charging Station With Pvmentioning

confidence: 99%

“…As an advanced power energy infrastructure, the plug-in electric vehicle (PEV) has been regarded as an environmentally friendly vehicle with high potential to reduce fuel consumption and CO 2 emissions [1]. However, since the PEV needs to be connected to the main grid for absorbing energy, the advantages of the PEV are not obvious due to the indirect fuel consumption and CO 2 emissions [2]. With the rapid development of solar energy resources, the AC-busbar PEV charging station with photovoltaic (PV) has become an attractive choice [3].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Steady-state Stability Assessment of AC-busbar Plug-in Electric Vehicle Charging Station with Photovoltaic

Wang

Sun

Qin

et al. 2020

Journal of Modern Power Systems and Clean Energy

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Although the deployment of alternating current (AC)-busbar plug-in electric vehicle (PEV) charging station with photovoltaic (PV) is a promising alternative, the interaction among subsystems always causes the instability problem. Meanwhile, the conventional generalized Nyquist criterion (GNC) is complex, and it is not suitable for the design of the AC system. Therefore, this paper proposes a modified infinityone-norm (MION) stability criterion based on the impedance method to assess the stability of the foresaid charging station. Firstly, the typical structure and operation modes of the charging station are studied. Furthermore, each subsystem impedance matrix is built by small-signal method, and the MION stability criterion based on impedance method is proposed to assess the charging station stability. Compared with the previous simplified stability criteria based on the norm, the proposed criterion has lower conservatism. Furthermore, the design regulation for the controller parameters is provided, and the stability recovery way is provided by connecting the doubly-fed line and energy storage equipment, which are selected based on intermediate variable, i. e., short-circuit ratio (SCR). Finally, the effectiveness and conservatism of the proposed stability criterion are validated through simulation and experimental results.

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Section: F Stability Analysis Of Ac-busbar Pev Charging Station With Pvmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Steady-state Stability Assessment of AC-busbar Plug-in Electric Vehicle Charging Station with Photovoltaic

Wang

Sun

Qin

et al. 2020

Journal of Modern Power Systems and Clean Energy

View full text Add to dashboard Cite

show abstract

“…7 below. Compared with the existing literature regarding closed-loop transfer function methods [38]. The closed-loop transfer function of SOGI-QSG is directly derived from the control structure and precise parameters of the system.…”

Section: Rl1 Rl2 Load Resistance 30ω，30ωmentioning

confidence: 99%

Passivity-Based Control for Movable Multi-Load Inductively Coupled Power Transfer System Based on PCHD Model

2020

IEEE Access

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A passivity-based control strategy for movable multi-load inductively coupled power transfer (ICPT) system based on PCHD (Port-Controlled Hamiltonian Dissipation, PCHD) model is proposed, which can effectively suppress mutual inductance and load interference. During the movement of the secondary coil of the movable multi-load ICPT system, due to the change of mutual inductance and the randomness of the multi-load, it will cause the transmission power and efficiency to oscillate and generate harmonics. Firstly, in view of the above problems, this paper analyzes the ICPT system under movable multiple loads. The DQ transformation method was used to establish the large-signal mathematical model of the system, and PCHD mathematical model in the DQ domain was established to decouple the active and reactive power. Secondly, the passivity-based controller (PBC) is designed by using the principle of interconnection and damping assignment passivity-based control (IDA-PBC). After that, the second method of Lyapunov function is used for stability analysis, and further verifies the asymptotic stability of the closed-loop system. Finally, the proposed method was verified by MATLAB/Simulink simulation. The simulation results show that the passivity-based controller has stronger robustness in both steady and movable states compared with the PI controller, which effectively suppresses the oscillation and total harmonic distortion caused by the change of mutual inductances and the randomness of the loads.

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“…In [9], the pipe network layout problem is transformed into the problem of flow distribution in the pipe route to be selected, and a pipe network layout method is proposed based on linear programming model. Combined with the impedance-based approach, the proposed stability assessment approach is utilized to analyze the stability of the microgrid with multiple converters in [10] and [11]. Compared with the existing characteristic equation methods, the proposed approach can be verified that the performance is significantly improved.…”

Section: B Related Workmentioning

confidence: 99%

Pipeline Network Layout Design of Integrated Energy System based on Energy Station Site Selection and Load Complementary Characteristics

2020

IEEE Access

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In view of the lack of effective energy station site optimization method in the existing integrated energy system (IES) planning, and the failure to consider the load characteristics in the division process of the energy supply area of energy stations, a pipeline network layout method of integrated energy system is proposed based on energy station site selection and load complementary characteristics. Firstly, based on the analysis of the interaction between the station and network planning of IES, an alternated optimal method framework of energy station site, energy supply area division and pipe network layout are proposed. Secondly, based on the energy supply radius of the energy station, this paper proposes a method to determine the number of new energy stations, and based on the topological characteristics of the cellular networks, a method of determine the initial energy station site is proposed. Thirdly, considering the complementary load characteristics, the evaluation index and division method of energy supply area of integrated energy station are proposed. Fourthly, aiming at the problem of pipe network layout on the road, a pipe network optimization method based on Kruskal algorithm is proposed, and optimize the direction of load access to the pipe network by the linear optimization model. Fifthly, the calculation method of equivalent energy distance of load and the optimization method of energy station site based on equivalent energy distance are proposed. Finally, the rationality and effectiveness of this method are verified by an example. INDEX TERMS Energy system planning and optimization, pipeline network layout, energy station site selection, load energy distance, load complementary characteristics.

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Reduced-Order Transfer Function Model of the Droop-Controlled Inverter via Jordan Continued-Fraction Expansion

Cited by 112 publications

References 34 publications

Steady-state Stability Assessment of AC-busbar Plug-in Electric Vehicle Charging Station with Photovoltaic

Steady-state Stability Assessment of AC-busbar Plug-in Electric Vehicle Charging Station with Photovoltaic

Passivity-Based Control for Movable Multi-Load Inductively Coupled Power Transfer System Based on PCHD Model

Pipeline Network Layout Design of Integrated Energy System based on Energy Station Site Selection and Load Complementary Characteristics

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