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IEEE Transactions on Smart Grid Publication Information
Year: 2022 | Volume: 13 | Issue: 6
Robust, Accurate, and Fast Decentralized Power Sharing Mechanism for Isolated DC Microgrid Using Droop-Based Sliding-Mode Control
Mohammad Veysi;Jamshid Aghaei;Mohammad Reza Soltanpour;Mokhtar Shasadeghi;Behrooz Bahrani;Daniel Joseph Ryan
Publication Year: 2022,Page(s):4160 - 4173
Cited by: Papers (30)
In this paper, a droop-based sliding mode controller (DBSMC) is designed for power sharing in an isolated DC microgrid (DC MG), with improved nonlinear droop model, in the presence of bounded structured uncertainties and external disturbances. The proposed DBSMC strategy does not require any communication link. The design process of the proposed controller is such that the trade-off between the tw...Show More
A Novel Distributed Secondary Control of Heterogeneous Virtual Synchronous Generators via Event-Triggered Communication
Publication Year: 2022,Page(s):4174 - 4189
Cited by: Papers (19)
At present, the distributed cooperative control method has been widely adopted in the secondary control of the conventional droop-based microgrid (MG). However, its application in the secondary control of Virtual Synchronous Generator (VSG) is relatively lagging. Based on the conventional virtual governor, this paper designs the frequency distributed secondary control strategy of VSG based on the ...Show More
Distributed Event-Triggered Control for Harmonic Voltage Compensation in Islanded AC Microgrids
Jinghang Lu;Xiaojie Liu;Mehdi Savaghebi;Xiaochao Hou;Peng Wang
Publication Year: 2022,Page(s):4190 - 4201
Cited by: Papers (9)
Due to the proliferation of critical nonlinear loads in the islanded AC microgrids, the power quality improvement at the sensitive load bus (SLB) is a challenging task. To deal with this issue, a distributed event-triggered control strategy for the voltage harmonic compensation is proposed in this paper. By applying the proposed strategy, the distributed generator (DG) units can be employed in a d...Show More
Simultaneous Optimization of Virtual Synchronous Generators Parameters and Virtual Impedances in Islanded Microgrids
Bahram Pournazarian;Reza Sangrody;Matti Lehtonen;Gevork B. Gharehpetian;Edris Pouresmaeil
Publication Year: 2022,Page(s):4202 - 4217
Cited by: Papers (30)
An islanded microgrid (MG) including low-inertia converter-based distributed generations (DGs) is subjected to instability. The virtual inertia concept was proposed to alleviate the stability issues by imitating the synchronous generators behavior. This paper spotlights on the optimization of virtual synchronous generator (VSG) parameters and virtual impedances (VI) in islanded MGs using particle ...Show More
Optimal Operation of Regional Microgrids With Renewable and Energy Storage: Solution Robustness and Nonanticipativity Against Uncertainties
Publication Year: 2022,Page(s):4218 - 4230
Cited by: Papers (48)
Due to prevailing uncertainties of renewable energy and time coupling constraints of energy storage (ES), robustness and nonanticipativity of scheduling results directly influence the operational feasibility of regional microgrids. To this end, this paper proposes a new multistage generation scheduling method for regional microgrids with renewables and ES, which can simultaneously guarantee the ro...Show More
Droop-Free Distributed Cooperative Control Framework for Multisource Parallel in Seaport DC Microgrid
Qinjin Zhang;Yuji Zeng;Yuanting Hu;Yancheng Liu;Xuzhou Zhuang;Haohao Guo
Publication Year: 2022,Page(s):4231 - 4244
Cited by: Papers (20)
In this article, a novel distributed cooperative control framework is proposed to solve the problems of unbalanced load current sharing and bus voltage deviation in seaport DC microgrid. This framework without droop control, and a novel droop-free cooperative controller is constructed to achieve current sharing and voltage regulation goals. Each distributed generator (DG) transmits information bas...Show More
A New Unbalanced Voltage Compensation Method Based on HOPF Oscillator for Three-Phase DC/AC Inverters With Unbalanced Loads
Siyi Luo;Weimin Wu;Eftichios Koutroulis;Henry Shu-Hung Chung;Frede Blaabjerg
Publication Year: 2022,Page(s):4245 - 4255
Cited by: Papers (13)
In islanded microgrids, distributed generators (DGs) are employed as distributed compensators to improve the power quality on the load side. Due to the access of unbalanced loads, the low-voltage microgrid will naturally exhibit three-phase unbalance, which may cause additional power losses and deteriorate power quality. Therefore, this paper proposes a novel unbalanced-voltage compensation contro...Show More
Stability Enhancement of Battery-Testing DC Microgrid: An ADRC-Based Virtual Inertia Control Approach
Bo Long;Wei Zeng;José Rodríguez;Cristian Garcia;Josep M. Guerrero;Kil To Chong
Publication Year: 2022,Page(s):4256 - 4268
Cited by: Papers (24)
Power batteries play a vital role in electric vehicle (EV) industry. To evaluate their charging and discharging performance and achieve energy recovery, a power accumulator battery testing system (PABTS) based DC-microgrid (DC-MG) is proposed. However, during battery testing, frequent charging and discharging current test may endanger the stability of the PABTS DC-MG. Although, the traditional vir...Show More
DDPG-Based Backstepping Controller for DC Solid State Transformer in DC Microgrid With Constant Power Loads
Xiangqi Meng;Yanbing Jia;Chunguang Ren;Pei Zhao;Xiaoqing Han;Tao Huang;Peng Wang
Publication Year: 2022,Page(s):4269 - 4283
Cited by: Papers (17)
The DC solid-state transformer (DCSST) is a key component of the DC microgrid, and stability issues due to operation with constant power loads (CPLs) have become increasingly prominent. To stabilize the system of DCSST with CPLs, in this paper, a novel intelligent backstepping controller based on a nonlinear disturbance observer (NDO) is proposed, and the control coefficients of the backstepping c...Show More
Existence Conditions and Stability for the Power-Flow of DC Micro-Grids With CPLs
Publication Year: 2022,Page(s):4284 - 4299
Cited by: Papers (3)
The power flow equation of the DC micro-grid with distributed generations (DGs) under MPPT control (MPPT-DGs) and constant power loads (CPLs) is a strongly coupled nonlinear equation, which is difficult to solve. Moreover, the negative impedance of CPL tends to make the system unstable. This paper analyzes the existence conditions and stability of the power-flow of DC micro-grids, which contain di...Show More
An Assessment of Multistage Reward Function Design for Deep Reinforcement Learning-Based Microgrid Energy Management
Hui Hwang Goh;Yifeng Huang;Chee Shen Lim;Dongdong Zhang;Hui Liu;Wei Dai;Tonni Agustiono Kurniawan;Saifur Rahman
Publication Year: 2022,Page(s):4300 - 4311
Cited by: Papers (31)
Reinforcement learning based energy management strategy has been an active research subject in the past few years. Different from the baseline reward function (BRF), the work proposes and investigates a multi-stage reward mechanism (MSRM) that scores the agent’s step and final performance during training and returns it to the agent in real time as a reward. MSRM will also improve the agent’s train...Show More
Single-Phase to Ground Fault Line Identification for Medium Voltage Islanded Microgrids With Neutral Ineffectively Grounded Modes
Lili He;Yang Li;Xu Chu;Zhikang Shuai;Yelun Peng;Z. John Shen
Publication Year: 2022,Page(s):4312 - 4326
Cited by: Papers (14)
Considering single-phase to ground (SPG) faults accounting for more than 80% of all faults, neutral ineffectively grounded mode (NIGM) is the most promising choice for medium voltage (MV) islanded microgrids (MGs) to enhance operation reliability. But due to the weak fault current and flexible network topology of islanded MGs, it is difficult to detect SPG fault lines. To solve this issue, this pa...Show More
DC Voltage Oscillation Stability Analysis of DC-Voltage-Droop-Controlled Multiterminal DC Distribution System Using Reduced-Order Modal Calculation
Publication Year: 2022,Page(s):4327 - 4339
Cited by: Papers (11)
To reduce the dimensions of a multiterminal DC (MTDC) distribution system connected with multiple voltage source converters (VSCs), a dynamic equivalent model is normally established, assuming that the VSCs are either identical or have a specified topology. These assumptions are inconsistent with practical scenarios, and thus, may lead to errors in the analyzed results. In this study, differences ...Show More
Distributed OPF for PET-Based AC/DC Distribution Networks With Convex Relaxation and Linear Approximation
Publication Year: 2022,Page(s):4340 - 4354
Cited by: Papers (8)
A power electronic transformer (PET) can flexibly regulate the power flow of a network and facilitate the integration of distributed energy resources via AC/DC networks. With the continuous expansion of the scale of multiregional interconnection networks, the traditional centralized optimization method faces great challenges. This paper proposes a distributed convex optimal power flow (OPF) model ...Show More
Robust Co-Optimization of Droop and Affine Policy Parameters in Active Distribution Systems With High Penetration of Photovoltaic Generation
Juan Sepúlveda;Alejandro Angulo;Fernando Mancilla-David;Alexandre Street
Publication Year: 2022,Page(s):4355 - 4366
Cited by: Papers (7)
Legacy distribution systems need to adapt quickly to upcoming operating scenarios. The expected growth of electromobility and distributed generation will bring forth many challenges regarding efficient operation. Additionally, the limited communication infrastructure of these networks hinders the applicability of heavily centralized control strategies. In this context, this paper proposes a distri...Show More
Real-Time Grid and DER Co-Simulation Platform for Testing Large-Scale DER Coordination Schemes
Adil Khurram;Mahraz Amini;Luis A. Duffaut Espinosa;Paul D. H. Hines;Mads R. Almassalkhi
Publication Year: 2022,Page(s):4367 - 4378
Cited by: Papers (6)
Distributed energy resources (DERs), such as responsive loads and energy storage systems, can help grid operators to more effectively balance supply and demand and manage network constraints. However, consumer acceptance of load coordination schemes depends on ensuring customer quality of service (QoS), thus requiring the careful management of device-level constraints. Simultaneously managing both...Show More
Chance-Constrained Regulation Capacity Offering for HVAC Systems Under Non-Gaussian Uncertainties With Mixture-Model-Based Convexification
Publication Year: 2022,Page(s):4379 - 4391
Cited by: Papers (1)
Heating, ventilation, and air-conditioning (HVAC) systems are ideal demand-side flexible resources to provide regulation services. However, finding the best hourly regulation capacity offers for HVAC systems in a power market ahead of time is challenging because they are affected by non-Gaussian uncertainties from regulation signals. Moreover, since HVAC systems need to frequently regulate their p...Show More
Asynchronous Distributed IoT-Enabled Customer Characterization in Distribution Networks: Theory and Hardware Implementation
Publication Year: 2022,Page(s):4392 - 4404
Cited by: Papers (5)
This paper proposes and implements an asynchronous distributed IoT-enabled customer characterization framework to classify customers’ load consumption behaviors in electric distribution networks. More specifically, the proposed framework enables robust distributed clustering of customers’ electricity consumption habits in a highly scalable and interoperable framework. The proposed clustering metho...Show More
Aggregate Feasible Region of DERs: Exact Formulation and Approximate Models
Publication Year: 2022,Page(s):4405 - 4423
Cited by: Papers (39)
The aggregation of distributed energy resources (DERs) draws much attention since their penetration increases continuously. We derive the mathematical formulation of the exact aggregate feasible region (AFR) of multiple DERs. The derivation is based on analyzing the redundancy of all possible constraints in the Fourier-Motzkin Elimination (FME) process. In the exact AFR model, the number of constr...Show More
Aggregate Feasible Region of DERs: Exact Formulation and Approximate Models
Year: 2022 | Volume: 13 | Issue: 6
Analytical Adequacy Evaluation for Power Consumers With UPS in Distribution Networks
Pei Yong;Ning Zhang;Yaowang Li;Qingchun Hou;Yuxiao Liu;Song Ci;Chongqing Kang
Publication Year: 2022,Page(s):4424 - 4435
Cited by: Papers (9)
An uninterruptible power supply (UPS) can reduce power failure loss by responding to power demand during distribution network failures. For reliability-sensitive power consumers, deploying UPSs is a solution for improving power supply reliability. Nevertheless, because of UPS devices’ energy limits and potential failure probability, power consumers with UPSs cannot guarantee 100% adequacy. In futu...Show More
Robust and Cost-Efficient Coordinated Primary Frequency Control of Wind Power and Demand Response Based on Their Complementary Regulation Characteristics
Zhetong Ding;Kun Yuan;Junjian Qi;Ying Wang;Jiangyi Hu;Kaifeng Zhang
Publication Year: 2022,Page(s):4436 - 4448
Cited by: Papers (12)
This paper first points out and carefully analyzes the complementary regulation characteristics (CRC) of wind power generators (WGs) and demand response resources (DRRs), which indicate the fact that their regulation capacities and costs of upward and downward regulation are significantly different and complementary. Based on the CRC of WGs and DRRs, this paper proposes a coordinated control to ac...Show More
TSO-DSOs Stable Cost Allocation for the Joint Procurement of Flexibility: A Cooperative Game Approach
Publication Year: 2022,Page(s):4449 - 4464
Cited by: Papers (15)
In this paper, a transmission-distribution systems flexibility market is introduced, in which system operators (SOs) jointly procure flexibility from different systems to meet their needs (balancing and congestion management) using a common market. This common market is, then, formulated as a cooperative game aiming at identifying a stable and efficient split of costs of the jointly procured flexi...Show More
Incentive-Based Integrated Demand Response Considering S&C Effect in Demand Side With Incomplete Information
Publication Year: 2022,Page(s):4465 - 4482
Cited by: Papers (40)
Incentive-based integrated demand response (IDR) has been recognized as a powerful tool to mitigate supply-demand imbalance in integrated energy systems with high penetration of distributed renewable energy sources (RESs). However, incomplete information as well as demand-side substitute and complementary effect (S&C effect)—the change in demand for a type of energy carrier as a result of a change...Show More
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