Search results for: Chengxiong Mao

Items from 1 to 20 out of 69 results

article

Multi‐function combined operation and control strategy of electronic power transformer for power quality improvement

Yun Yang, Chengxiong Mao, Tianliu Wei, Dan Wang, more

IEEJ Transactions on Electrical and Electronic Engineering > 12 > 6 > 841 - 849

High penetration of power electronic devices and nonlinear loads can negatively affect the power quality of the distribution system. The conventional method of improving the power quality is to employ an extra distribution static synchronous compensator (D‐STATCOM) or an active power filter (APF) for compensating reactive power and mitigating current harmonics. This paper proposes an electronic power...

chapter

A DC component elimination control strategy for the interface system of digital-physical hybrid real-time simulation

Jie Zeng, Junlin Li, Feng Leng, Boya Peng, more

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society > 515 - 520

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

Digital-physical hybrid real-time simulation is considered to be an advanced method for future power system simulation. However, the physical interface will inevitably exist DC component, which causes negative effects on practical applications, such as degradation of simulation performance, damage to physical equipment, etc. A novel DC component elimination control strategy for the digital-physical...

chapter

A novel impedance compensation algorithm for improving the stability of digital-physical hybrid simulation

Jie Zeng, Feng Leng, Boya Peng, Junlin Li, more

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society > 51 - 55

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

Digital-analog hybrid simulation method combines the advantages of both real-time digital simulation and physical simulation, and will be an effective means for the simulation and analysis of future power system. However, the ideal transformer model (ITM), as the most widely used interface algorithm, is easy to encounter instability issues. A novel impedance compensation algorithm based on ITM is...

article

Analysis of electromagnetic force for medium frequency transformer with interleaved windings

Pei Huang, Chengxiong Mao, Dan Wang

IET Generation, Transmission & Distribution > 2017 > 11 > 8 > 2023 - 2030

Medium frequency transformers (MFTs) have achieved extensive attention since they are widely used in medium frequency energy conversion systems. Different from traditional power transformer, MFTs require special consideration of short-circuit design due to their complex fault conditions. In this study, the electromagnetic forces exerted on the windings of a 1.5 kV, 35 kW, 1 kHz MFT are investigated...

article

Optimal Design and Implementation of High-Voltage High-Power Silicon Steel Core Medium-Frequency Transformer

Pei Huang, Chengxiong Mao, Dan Wang, Libing Wang, more

IEEE Transactions on Industrial Electronics > 2017 > 64 > 6 > 4391 - 4401

A 1.5 kV, 35 kW, 1 kHz silicon steel core medium-frequency transformer is designed and prototyped for a 10 kV, 0.5 MW electronic power transformer. This transformer uses 0.18 mm silicon steel as core material due to the advantages of easy processing, high saturation flux density, low noise, and low cost. The detailed design considerations and an optimal design method are presented in this paper. Different...

article

Frequency regulation of multi-area power systems with plug-in electric vehicles considering communication delays

Hua Fan, Lin Jiang, Chuan-Ke Zhang, Chengxiong Mao

IET Generation, Transmission & Distribution > 2016 > 10 > 14 > 3481 - 3491

Dynamics of vehicle-to-grid service to frequency regulation may suffer from the uncertainties arising from the spatial and temporal diversities of the large-scale plug-in vehicles (PEVs). Communication delays incurred both in the aggregation of the PEVs and in load frequency control (LFC) loop also degrade the dynamics and even destabilise the system. This study designs the LFC scheme considering...

article

A 10-kV/400-V 500-kVA Electronic Power Transformer

Dan Wang, Jie Tian, Chengxiong Mao, Jiming Lu, more

IEEE Transactions on Industrial Electronics > 2016 > 63 > 11 > 6653 - 6663

This paper presents the design and development of a three-phase 10-kV/400-V 500-kVA electronic power transformer (EPT). The power circuit is designed in a modular fashion, i.e., the main circuit consists of many identical ac–dc–dc–ac modules (abbreviated as power modules). Each power module consists of a high-voltage power cell, a low-voltage power cell (LVPC), a medium-frequency isolation transformer,...

article

Dynamic performance improvement of DFIG-based WT using NADRC current regulators

Shihong Gao, Chengxiong Mao, Dan Wang, Jiming Lu

International Journal of Electrical Power & Energy Systems > 2016 > 82 > C > 363-372

In this paper, to improve the dynamic performance of DFIG-based WT, a NADRC technology is proposed. The proposed NADRC can actively estimate and compensate the plant internal dynamics and external disturbances in real time. Therefore, it improves the tracking performance of the rotor current without any overshoot and steady-state error, and enhances the fault ride-through capability of DFIG-based...

chapter

Research on Multi-Agent Parallel Computing Model of Hydrothermal Economic Dispatch in Power System

Bu-han Zhang, Junfang Li, Yan Li, Chengxiong Mao, more

Lecture Notes in Computer Science > Advances in Neural Networks – ISNN 2009 > Applications II > 1160-1170

This paper presents a Multi-Agent Parallel Computing Model (MAPCM) for solving hydrothermal scheduling in the power system. The proposed model is hierarchical with two levels—decomposition level considering real time dispatch with optimal power flow and a coordination level considering the selection method of hydro-coal transfer coefficient under different situation about water head, and active power...

chapter

Fault tolerant design for electronic power transformer

Shaoxiong Nie, Chengxiong Mao, Dan Wang

2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) > 692 - 696

2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

Electronic power transformer (EPT) is a promising electrical device in flexible AC transmission systems (FACTS). Despite its advantages, the large number of power electronic devices used in EPT increases the fault probability. In this paper, fault tolerant strategy for EPT is designed to improve its reliability. Four protection schemes to achieve redundancy in cascaded H-bridge (CHB) converter based...

article

Design and Implementation of Voltage Source Converter Excitation System to Improve Power System Stability

Zhu Chen, Chengxiong Mao, Dan Wang, Jiming Lu, more

IEEE Transactions on Industry Applications > 2016 > 52 > 4 > 2778 - 2788

This paper presents the design of the voltage source converter (VSC) excitation system and an integrated prototype using digital signal processor (DSP) as the core of the excitation controller is developed. Compared with the static excitation systems with thyristor, the VSC excitation system owns one more channel offering positive damping to power system by controlling reactive power of VSC on its...

article

Low cost hybrid reactive power compensator using coordination control strategies

Tianliu Wei, Chengxiong Mao, Jiming Lu, Dan Wang, more

IET Generation, Transmission & Distribution > 2016 > 10 > 8 > 1805 - 1814

This study presents a hybrid compensator based on distribution static synchronous compensator (DSTATCOM) and thyristor switched capacitor (TSC), which is intended to continuously compensate reactive power with higher quality and lower cost. The proposed coordination control strategies, in essence, are to continuously assign the reactive power between the DSTATCOM and the TSC. Usually, the fast response...

chapter

Forecasting Electricity Demand by Hybrid Machine Learning Model

Shu Fan, Chengxiong Mao, Jiadong Zhang, Luonan Chen

Lecture Notes in Computer Science > Neural Information Processing > Forecasting and Prediction > 952-963

This paper proposes a hybrid machine learning model for electricity demand forecasting, based on Bayesian Clustering by Dynamics (BCD) and Support Vector Machine (SVM). In the proposed model, a BCD classifier is firstly applied to cluster the input data set into several subsets by the dynamics of load series in an unsupervised manner, and then, groups of 24 SVMs for the next day’s electricity demand...

chapter

Peak Load Forecasting Using the Self-organizing Map

Shu Fan, Chengxiong Mao, Luonan Chen

Lecture Notes in Computer Science > Advances in Neural Networks – ISNN 2005 > Power Systems > 640-647

This paper aims to study the short-term load forecasting of electricity by using an extended self-organizing map. We first adopt a traditional Kohonen self-organizing map (SOM) to learn time-series load data with weather information as parameters. Then, in order to improve the accuracy of the prediction, an extension of SOM algorithm based on error-correction learning rule is used, and the estimation...

chapter

Double Three-Level Inverter Based Variable Frequency Drive with Minimal Total Harmonic Distortion Using Particle Swarm Optimization

Huibo Lou, Chengxiong Mao, Jiming Lu, Dan Wang, more

Lecture Notes in Computer Science > Advanced Intelligent Computing Theories and Applications. With Aspects of Theoretical and Methodological Issues > Intelligent Control and Automation > 461-472

In this paper, a suitable particle swarm optimization (PSO) is firstly proposed to obtain the pulse width modulation (PWM) switching time which maintaining a required fundamental voltage and a minimal total harmonic distortion (THD) for very high power medium voltage induction motor drives fed by a double three-level inverter (DTI). The simulation results show that double three-level inverter based...

article

Modeling and control of a cascaded multilevel converter‐based electronic power transformer

Hui Huang, Junfeng Zhang, Chengxiong Mao, Jiming Lu, more

IEEJ Transactions on Electrical and Electronic Engineering > 11 > 3 > 268 - 275

Control strategy of a cascaded multilevel converter based electrical power transformer (EPT) in a distribution system with capabilities of low voltage ride‐through and unbalanced load current management is investigated in this study. The mathematical model and decoupled control schemes of the system, including a high‐voltage side control scheme, an isolation‐stage control scheme, and a low‐voltage...

article

Damping of interarea oscillations using electronic power transformer

Hui Huang, Chengxiong Mao, Junfeng Zhang, Jiming Lu, more

European Transactions on Electrical Power > 25 > 11 > 3155 - 3168

This study utilizes the electronic power transformer (EPT) to enhance the damping of interarea oscillations in a multimachine power system based on active power modulation. The dynamic model of EPT is established, and decoupled vector control schemes of inner current control loops and outer active and reactive power control loops are modeled and designed. A power oscillation damper (POD) applied to...

chapter

The electromagnetic transient modeling and simulation of 10 kV/400 V EPT

Jiming Lu, Dan Wang, Xiang Liang, Yiran Liu, more

2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT) > 2320 - 2325

2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

Electronic Power Transformer (EPT) is capable of improving power quality without additional devices; hence it has the potential of pervasive application in prospective utility grid. Ahead of field test, transient analysis of EPT is necessary to verify power supply reliability as well as ensure safety. In this paper, the Electro-Magnetic Transient (EMT) simulation model of an industrial prototype of...

chapter

A novel control strategy for static excitation system based on three-phase current source converter

Yuhao Zhou, Chengxiong Mao, Zhu Chen, Jiming Lu, more

2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT) > 1240 - 1245

2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

In modern power system, increasing pressures of system stability have become more and more serious. Because ex citation systems are one of the most effective and economical ways contribute to effective control of voltage, increasing attention has been focused on the effects of excitation control. To satisfy the needs of modern power system, excitation system based on full-controlled devices is proposed...

chapter

A peak load regulation scheme for Hubei power grid with UHVDC integration

Ni Zeng, Mei Li, Buhan Zhang, Ruoxi Zhu, more

2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT) > 506 - 511

2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

Under the background of transmitting thermal power via UHV transmission line from Mengxi to Hubei in the long-term planning, this paper analyzed Hubei power grid's peak load regulation scheme which Mengxi UHVDC involved in. Based on the energy-efficient power generation scheduling approach and multiple constraints of units, a peak load regulation scheme under the coordinated operation of thermal power,...

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Keywords

POWER TRANSFORMERS (13)
ELECTRONIC POWER TRANSFORMER (11)
ELECTRONIC POWER TRANSFORMER (EPT) (8)
GENERATORS (8)
VOLTAGE CONTROL (8)
POWER SYSTEM STABILITY (6)
WIND POWER PLANTS (6)
LOAD FLOW (5)
POWER QUALITY (5)
REACTIVE POWER (5)
DISTRIBUTION SYSTEM (4)
POWER CONVERSION (4)
POWER ELECTRONICS (4)
POWER GRIDS (4)
POWER SYSTEM (4)
WIND POWER (4)
DC BIAS (3)
DYNAMIC RESPONSE (3)
ENERGY STORAGE (3)
EXCITATION SYSTEM (3)
HVDC (3)
HVDC POWER TRANSMISSION (3)
INSULATED GATE BIPOLAR TRANSISTORS (3)
INVERTERS (3)
MATHEMATICAL MODEL (3)
OPTIMAL CONTROL (3)
POWER SUPPLY RELIABILITY (3)
POWER SYSTEM DAMPING (3)
POWER SYSTEM RELIABILITY (3)
PULSE WIDTH MODULATION (3)
TRANSFORMER NEUTRAL POINT (3)
AC TRANSMISSION SYSTEM (2)
BATTERIES (2)
BATTERY STORAGE PLANTS (2)
CAPACITORS (2)
CHOPPERS (CIRCUITS) (2)
DAMPING (2)
DIGITAL SIGNAL PROCESSING (2)
DISTRIBUTION ELECTRONIC POWER TRANSFORMER (2)
DISTRIBUTION NETWORKS (2)
DSP TMS320F2812 (2)
DYNAMIC PERFORMANCE (2)
EARTH ELECTRODES (2)
ELECTRIC CURRENT CONTROL (2)
ENERGY CONSERVATION (2)
ENERGY STORAGE SYSTEM (2)
EQUIVALENT CIRCUITS (2)
FEEDBACK (2)
FEEDFORWARD (2)
FLUCTUATIONS (2)
FREQUENCY CONTROL (2)
GENERATOR EXCITATION (2)
HVDC GROUND ELECTRODE CURRENT (2)
HYBRID POWER SYSTEMS (2)
INDUSTRIAL PROTOTYPE (2)
MATLAB/SIMULINK (2)
MEDIUM FREQUENCY TRANSFORMER (2)
MONOPOLAR OPERATIONS (2)
NUMERICAL ANALYSIS (2)
OPTIMAL COORDINATED CONTROL STRATEGY (2)
PARALLEL (2)
POWER CONTROL (2)
POWER GENERATION CONTROL (2)
POWER SUPPLIES (2)
POWER SUPPLY QUALITY (2)
POWER SYSTEM CONTROL (2)
POWER SYSTEM DYNAMICS (2)
PWM RECTIFIERS (2)
RELIABILITY (2)
SMART GRID (2)
STATIC VAR COMPENSATORS (2)
SWITCHES (2)
TRANSFORMER (2)
TRANSFORMER WINDINGS (2)
TRANSIENT STABILITY (2)
VOLTAGE FLUCTUATIONS (2)
WIND POWER GENERATION (2)
WIND TURBINES (2)
3-ORDER DISCRETE RICCATI EQUATION (1)
3-PHASE AND 4-WIRE (1)
3-PHASE-TO-GROUND FAULT (1)
3D TRANSIENT COUPLED FIELD-CIRCUIT FINITE ELEMENT MODEL (1)
6 KV (1)
AC CURRENT CONTROL (1)
AC EXCITED GENERATOR (1)
AC GENERATORS (1)
AC-DC HYBRID PARALLEL OPERATION CONTROL (1)
AC-DC TRANSMISSION SYSTEM (1)
ACTIVE DECOUPLE CONTROL (1)
ACTIVE POWER (1)
ACTIVE POWER ADJUSTMENT CAPABILITY (1)
ACTIVE POWER TRANSMISSION (1)
ADAPTIVE CONTROL (1)
ADAPTIVE OPTIMAL EXCITATION CONTROLLER (1)
ALGORITHM DESIGN AND ANALYSIS (1)
ALTERNATIVE ENERGY (1)
ALTERNATIVE ENERGY GENERATION SYSTEMS (1)
ARRAYS (1)
ARRESTER (1)
ARRESTERS (1)
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Springer (4)
Wiley (3)

INFONA - science communication portal

Search results for: Chengxiong Mao

Multi‐function combined operation and control strategy of electronic power transformer for power quality improvement

A DC component elimination control strategy for the interface system of digital-physical hybrid real-time simulation

A novel impedance compensation algorithm for improving the stability of digital-physical hybrid simulation

Analysis of electromagnetic force for medium frequency transformer with interleaved windings

Optimal Design and Implementation of High-Voltage High-Power Silicon Steel Core Medium-Frequency Transformer

Frequency regulation of multi-area power systems with plug-in electric vehicles considering communication delays

A 10-kV/400-V 500-kVA Electronic Power Transformer

Dynamic performance improvement of DFIG-based WT using NADRC current regulators

Research on Multi-Agent Parallel Computing Model of Hydrothermal Economic Dispatch in Power System

Fault tolerant design for electronic power transformer

Design and Implementation of Voltage Source Converter Excitation System to Improve Power System Stability

Low cost hybrid reactive power compensator using coordination control strategies

Forecasting Electricity Demand by Hybrid Machine Learning Model

Peak Load Forecasting Using the Self-organizing Map

Double Three-Level Inverter Based Variable Frequency Drive with Minimal Total Harmonic Distortion Using Particle Swarm Optimization

Modeling and control of a cascaded multilevel converter‐based electronic power transformer

Damping of interarea oscillations using electronic power transformer

The electromagnetic transient modeling and simulation of 10 kV/400 V EPT

A novel control strategy for static excitation system based on three-phase current source converter

A peak load regulation scheme for Hubei power grid with UHVDC integration

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