Yuntao Ju
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View article: Linearized Power Flow Calculation of Flexible Interconnected Distribution Network Driven by Data–Physical Fusion
Linearized Power Flow Calculation of Flexible Interconnected Distribution Network Driven by Data–Physical Fusion Open
In a modern flexible interconnected distribution network, the dynamic coupling effect between the traditional AC network model and the power electronic converter significantly enhances the nonlinearity and non-convexity of power flow calcu…
View article: Optimal Scheduling of Microgrids Considering Frequency Safety Constraints
Optimal Scheduling of Microgrids Considering Frequency Safety Constraints Open
View article: Virtual Power Plant Reactive Power Voltage Support Strategy Based on Deep Reinforcement Learning
Virtual Power Plant Reactive Power Voltage Support Strategy Based on Deep Reinforcement Learning Open
After the large-scale access of distributed power sources to the distribution network, significant high/low voltage problems have emerged. Using a virtual power plant to provide reactive power voltage regulation as an ancillary service eff…
View article: A Multi-Timescale Stability Analysis Framework for Isolated DC Microgrids
A Multi-Timescale Stability Analysis Framework for Isolated DC Microgrids Open
View article: Active Disturbance Rejection Control Combined with Improved Model Predictive Control for Large-Capacity Hybrid Energy Storage Systems in DC Microgrids
Active Disturbance Rejection Control Combined with Improved Model Predictive Control for Large-Capacity Hybrid Energy Storage Systems in DC Microgrids Open
In DC microgrids, a large-capacity hybrid energy storage system (HESS) is introduced to eliminate variable fluctuations of distributed source powers and load powers. Aiming at improving disturbance immunity and decreasing adjustment time, …
View article: Large Signal Stability Analysis of Hybrid AC/DC Microgrids When a Single-Phase-to-Ground Fault Occurs
Large Signal Stability Analysis of Hybrid AC/DC Microgrids When a Single-Phase-to-Ground Fault Occurs Open
Islanded hybrid AC/DC microgrids lack support for a large grid, and the negative incremental impedance of constant power loads (CPLs) aggravates the poor anti-disturbance capability of the system. When a single-phase ground fault (SPGF) oc…
View article: Power flow analysis of integrated energy microgrid considering non‐smooth characteristics
Power flow analysis of integrated energy microgrid considering non‐smooth characteristics Open
With the development of electric energy substitution technologies such as electric auxiliary heating, the relationship between electric energy and thermal energy is getting closer, and it is of great significance to in‐depth study of integ…
View article: Three-phase optimal power flow for networked microgrids based on semidefinite programming convex relaxation
Three-phase optimal power flow for networked microgrids based on semidefinite programming convex relaxation Open
View article: A review on transient stability of land-sea networked fishery microgrids
A review on transient stability of land-sea networked fishery microgrids Open
The islands and offshore fish farming platforms in the deep sea can form a land-sea networked fishery microgrids to realize the complementary supply of energy. The fishery microgrid contains a high proportion of renewable energy sources su…
View article: Trends of optimal dispatching of microgrid for fishery based on model predictive control
Trends of optimal dispatching of microgrid for fishery based on model predictive control Open
As a constrained optimization strategy, model predictive control (MPC) is widely used in the optimal dispatch of microgrids. Rolling optimization and feedback correction strategy can effectively deal with the impact due to the system uncer…
View article: Land-sea relay fishery networked microgrids under the background of cyber-physical fusion: Characteristics and key issues prospect
Land-sea relay fishery networked microgrids under the background of cyber-physical fusion: Characteristics and key issues prospect Open
The locations of marine ranch and its surrounding islands are far away from the mainland, so the cost is too high to keep power supply by laying submarine cables from the mainland. Therefore, it is necessary to build a land-sea relay netwo…
View article: Research on Optimal Dispatching Strategy for Micro-Energy-Grid of Protected Agriculture
Research on Optimal Dispatching Strategy for Micro-Energy-Grid of Protected Agriculture Open
With the growth in demand for energy and the boom in energy internet (EI) technologies, comes the multi-energy complementary system. In this paper, we first model the components of the micro-energy-grid for a greenhouse, and then analyzed …
View article: An Asymptotic Numerical Continuation Power Flow to Cope with Non-Smooth Issue
An Asymptotic Numerical Continuation Power Flow to Cope with Non-Smooth Issue Open
Continuation power flow (CPF) calculation is very important for analyzing voltage stability of power system. CPF calculation needs to deal with non-smooth constraints such as the generator buses reactive power limits. It is still a technic…
View article: A sparse recovery model with fast decoupled solution for distribution state estimation and its performance analysis
A sparse recovery model with fast decoupled solution for distribution state estimation and its performance analysis Open
View article: Unit Commitment Accommodating Large Scale Green Power
Unit Commitment Accommodating Large Scale Green Power Open
As more clean energy sources contribute to the electrical grid, the stress on generation scheduling for peak-shaving increases. This is a concern in several provinces of China that have many nuclear power plants, such as Guangdong and Fuji…
View article: LVRT Test data analysis of converter‐interfaced wind turbines
LVRT Test data analysis of converter‐interfaced wind turbines Open
Doubly Fed Induction Generator (DFIG) and Permanent Magnet Synchronous Generator (PMSG) are converter‐interfaced wind turbines, which have much more complex short circuit behaviour after grid voltage drops. The research on short circuit cu…
View article: Two-Stage Linear Three-Phase State Estimation Formulation for Active Distribution Network
Two-Stage Linear Three-Phase State Estimation Formulation for Active Distribution Network Open
Linear state estimation (SE) formulation under a rectangular coordinate system has been proved to be applicable for real-time distribution network management. Micro phasor measurements’ model can be accommodated into this kind of SE …
View article: Holomorphic Embedding Load Flow Modeling of the Three-phase Active Distribution Network
Holomorphic Embedding Load Flow Modeling of the Three-phase Active Distribution Network Open
With large-scale distributed generators (DGs) in an active distribution network (ADN), conventional load flow convergence failure is incurred by heavy power transmission. The Holomorphic Embedding Load Flow Method (HELM) has proven to be m…
View article: General Three-Phase Linear Power Flow for Active Distribution Networks With Good Adaptability Under a Polar Coordinate System
General Three-Phase Linear Power Flow for Active Distribution Networks With Good Adaptability Under a Polar Coordinate System Open
Linear power flow (LPF) is necessary for robust and fast centralized control of active distribution networks (ADNs). With penetration of distributed generators (DGs) into ADN, voltage-controlled nodes are becoming more common, to maintain …
View article: Parameter Estimation of a Gaussian Mixture Model for Wind Power Forecast Error by Riemann L-BFGS Optimization
Parameter Estimation of a Gaussian Mixture Model for Wind Power Forecast Error by Riemann L-BFGS Optimization Open
With the increasing penetration of wind power into the electricity grid, wind power forecast error analysis plays an important role in operations scheduling. To better describe the characteristics of power forecast error, a probability den…
View article: Research on three‐phase optimal power flow for distribution networks based on constant Hessian matrix
Research on three‐phase optimal power flow for distribution networks based on constant Hessian matrix Open
The optimal power flow (OPF) problem for active distribution networks with distributed generation (DG) and a variety of discretely adjustable devices (e.g. on‐load tap‐changers, OLTCs) is essentially a non‐convex, non‐linear, mixed‐integer…
View article: Robust Co-Optimization to Energy and Reserve Joint Dispatch Considering Wind Power Generation and Zonal Reserve Constraints in Real-Time Electricity Markets
Robust Co-Optimization to Energy and Reserve Joint Dispatch Considering Wind Power Generation and Zonal Reserve Constraints in Real-Time Electricity Markets Open
This paper proposes an energy and reserve joint dispatch model based on a robust optimization approach in real-time electricity markets, considering wind power generation uncertainties as well as zonal reserve constraints under both normal…
View article: Unbalanced steady‐state model of synchronous machine for EMT initialisation
Unbalanced steady‐state model of synchronous machine for EMT initialisation Open
Unbalanced load flow solution provides the initialisation of electromagnetic transient (EMT) simulation model for the unbalanced active distribution network. The most electro‐magnetic transient program (EMTP) software use the d – q ‐axis‐b…
View article: ADN_Modelica: An Open Source Sequence-Phase Coupled Frame Program for Active Distribution Network Steady State Analysis
ADN_Modelica: An Open Source Sequence-Phase Coupled Frame Program for Active Distribution Network Steady State Analysis Open
Open source software such as OpenDSS has given a lot of help to distribution network researchers and educators. With high penetration of distributed renewable energy resources into distribution network, tradition distribution steady state …
View article: Three-Phase Steady-State Model of Doubly Fed Induction Generator Considering Various Rotor Speeds
Three-Phase Steady-State Model of Doubly Fed Induction Generator Considering Various Rotor Speeds Open
This paper presents a new unbalanced steady-state model of doubly fed induction generator (DFIG) for the three-phase load flow analysis. The existing unbalanced DFIG steady-state model does not consider the effects of different rotor speed…