Minyou Chen

Minyou Chen
Chongqing University | CQU · School of Electrical Engineering

PhD

About

106
Publications
11,339
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1,543
Citations
Citations since 2017
52 Research Items
1114 Citations
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250

Publications

Publications (106)
Article
Accurate simulation of power semiconductor devices failure process is one of the most important means to clarify the failure mechanism and evaluate the device reliability, which is induced by the associated internal temperature gradient acting on the mismatch of coefficients of thermal expansion between adjacent layers and internal temperature grad...
Article
Full-text available
This paper proposes a capacitor condition monitoring (CM) method for modular multilevel converter (MMC) in motor drive applications. The proposed method is based on wavelet decomposition of transient voltage signals, which is independent of modulation schemes and control strategies. The equivalent series resistance (ESR) change can be detected with...
Article
Increasing implementation of energy storage systems (ESS) is an available way to mitigate the fluctuation of renewable energy sources (RES) in smart grid. This paper proposes distributed control strategies without/with event-triggered information delivery for a group of heterogeneous energy storage systems (HESS) with different parameters such that...
Article
Full-text available
金属化薄膜电容器(Metallized polypropylene film capacitor, MPPF) 是模块化多电平换流阀(Modular multilevel converter, MMC)中最薄弱的部件之一,准确地评估其可靠性对柔性直流输电系统的安全稳定运行十分重要。针对MPPF 电容老化后聚丙烯膜熔融导致等效串 联电阻(Equivalent series resistance, ESR)增大,进而增加电容损耗,加速电容老化的问题,本文提出一种利用电容输出电压高频带能量来表征ESR 增加,并在不同服役周期 后对比能量变化从而判断电容的老化状态的方法,建立了基于频带能量的MPPF 电容失效检测模型。本文详细分析了电容在MMC 系统中的运行机理,并从MPPF 电容结构的角度分析了电...
Preprint
Full-text available
Power loss estimation is an indispensable procedure to conduct lifetime prediction for power semiconductor device. The previous studies successfully perform steady-state power loss estimation for different applications, but which may be limited for the electric vehicles (EVs) with high dynamics. Based on two EV standard driving cycle profiles, this...
Article
Multichip IGBT module has been widely used in high-power converters. Detecting the status of the IGBT chip is a cost-effective approach to improving the reliability of power devices. This article proposes a novel method based on turn-off delay time to detect chip fault in multichip IGBT modules. First, the effect of chip failure on the turn-off pro...
Article
High penetration level of PV sources in low-voltage distribution network (LVDN) leads to the voltage fluctuation problem, which may limit the maximal PV power generation due to the security issues of distribution networks. This paper proposes a distributed voltage regulation method by sharing the power of distributed heterogeneous battery energy st...
Article
Full-text available
Integrating large-scale renewable energy such as wind power and photovoltaics (PV) into the power system is a key pathway to realizing its low-carbon transition. Due to the volatility and uncertainty of renewable energy outputs, there are many studies to solve the huge challenges resulting from integrating large-scale renewable energy in the long-t...
Article
Full-text available
Bond wire lift-off is one of the major failure mechanisms in the insulated gate bipolar transistor (IGBT) modules. Detecting the fault of bond wires is important to avoid the open-circuit fault of IGBT to ensure the reliable operation of power converters. In this paper, we propose a novel bond wire fatigue detection method for IGBT, which could be...
Article
Full-text available
Abstract When failures occur in microgrids (MGs), the energy management for emergencies is required. To respond to emergencies in MGs rapidly, an accelerated hierarchical optimization method has been proposed, where the outputs of energy storage systems (ESSs) are controlled to provide urgent supports, before the MG reconfiguration starts. However,...
Article
Full-text available
Battery energy storage systems (BESSs) have been widely used in power grids to improve their flexibility and reliability. However, the inevitable battery life degradation is the main cost in BESS operations. Thus, an accurate estimation of battery aging cost is strongly needed to cover the actual cost of BESSs. The existing models of battery life d...
Article
Full-text available
This paper presents a stochastic model to quantify the impact of the electric vehicle (EV) on China’s electricity load profiles. Most of the existing literature utilized travel data to model EV charging behavior and ignored the influence of people’s social attributes that are significant for the accuracy of EV charging behavior. Based on the datase...
Article
Full-text available
The deployment of renewable energy sources, power-to-gas (P2G) systems, and zero-emission vehicles provide a synergistic opportunity to accelerate the decarbonization of both power and transportation system. This study investigates the prospects of implementing hydrogen P2G technology in coupling the power system and the transportation system. A no...
Article
Energy management in power systems is a thorny optimization problem. With the sizes of systems rising, centralized optimization methods are restricted by their complexities of communications, while distributed optimization methods have emerged as a powerful tool for dealing with increasingly complex systems. However, convergence rates of some widel...
Article
The growing penetration of photovoltaic (PV) sources accommodated in Active Distribution Network (ADN) brings various severe voltage limits violation problems. This paper provides power management strategy for PV inverters in order to achieve power sharing as well as voltage regulation by dispatching PV active and reactive power. The proposed power...
Article
Operational and health management for the reliability of power electronic converters requires sensitive condition monitoring and accurate estimation of the remaining lifetime. This study adds to the second aspect by examining the effects of failure locations on junction temperature profiles under different conditions. It is found that die-attach so...
Article
After microgrids (MGs) are built in a near region, a good idea is interconnecting those neighboring MGs to form a multi-microgrid (MMG) system and support each other. Apparently, the economic dispatch problem (EDP) of an MMG system is much more complex than that of an MG. In this paper, the EDPs of an MMG system is formulated as a two-layer interde...
Article
Full-text available
Bond wire lift-off will cause an increase of remaining wires’ power dissipation, which usually is ignored for healthy modules. However, only partial wires’ power dissipation transfers through thermal path from junction to case, which will lead to overestimate the whole power dissipation from collector to emitter pole and underestimate the calculate...
Article
Full-text available
A high proportion of photovoltaic (PV) connections to a low-voltage distribution network (LVDN) causes serious voltage problems. In order to ensure voltage stability for renewable energy networks, we propose a distributed reactive voltage control strategy that is event-triggered. The voltage information of the PV nodes is transmitted to the upper l...
Article
Virtual energy storage systems (VESS) are important new equipment for distribution networks, consisting of battery energy storage systems (BESS) or flexible loads (FL), that improve peak shaving, frequency regulation and energy management. This paper focuses on power management and real-time control for multiple virtual energy storage systems (MVES...
Article
Full-text available
This paper provides a distributed control strategy for battery energy storage systems (BESS) based on multi-agent system. The proposed control laws can guarantee that the state of charge (SoC) is synchronized, and BESS active power can be shared proportionally. Moreover, the heterogeneous characteristics of BESS are considered in modeling BESS and...
Article
Full-text available
The deployment of renewable electricity and electric vehicles (EVs) provides a synergistic opportunity to accelerate both the decarbonization of the power system and the transportation sectors. This study investigates the consequences of integrating electric vehicles (EVs) in the Chongqing thermal–hydro–wind power system by using the unit commitmen...
Article
Full-text available
Distributed optimization algorithms have long been criticized due to their slow convergence rates mostly caused by fixed step-sizes. In this paper, a fast distributed Lagrange dual method (FDLDM) has been proposed, where the Nesterov accelerated gradient is integrated and dynamic step-sizes are employed, which is the key to achieve the fast converg...
Article
Energy storage systems (ESS) are widely used in active distribution networks (ADN) to smoothen the drastic fluctuation of renewable energy sources (RES). In order to enhance the scalability and flexibility of ESS, a virtual energy storage system (VESS), which is composed of battery energy storage system (BESS), RES as well as flexible loads (FL), i...
Preprint
Economic dispatch (ED) plays an important role in economic operation of the microgrid (MG). However, the communication links among distributed generators (DGs) may practically be corrupted by additive noise, resulting in erroneous deviations from ED commands. To deal with such issues, this paper proposes a distributed noise-resilient ED strategy fo...
Article
Full-text available
In remote areas, large power stations are often installed to supply local loads due to the difficulties of power transmission. However, with the development of renewable energies and poverty alleviation programs, many renewable energy stations have been installed in such areas. This large amount of surplus and fluctuating energy causes a poor volta...
Article
Eco-friendly technologies regarding electricity production are urgent need of sustainable energy development. The renewable energy resources (RERs) have brought green revolution in mitigation of greenhouse gaseous emission resulted from traditional energy resources (TERs). Moreover, the effective utilization of these resources is influenced by pric...
Article
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Power modules connected in parallel may have different electrothermal performance variances resulting from aging because of the nonuniform rate of degradation; different electrothermal performance variances mean different current sharing, different junction temperature, and power losses, which will directly influence the overall characteristics of...
Article
Full-text available
Battery energy storage systems (BESS) have wide applicability for frequency regulation services in power systems, owing to their fast response and flexibility. In this paper, a distributed method for frequency regulation based on the BESS is proposed, where the method includes two layers. The upper layer is a communication network composed of agent...
Article
Full-text available
Aging has been generally regarded as one of the principal root causes of power device failure, due to it makes the performance of power device degradative, which will directly influence the electrical-thermal performances of the power device. Thus, it is essential to assess the condition to improve the operating reliability of power device. In this...
Article
Battery energy storage system (BESS) is a pivotal component to increase the penetration of renewable generation and to strengthen the stability and reliability of the power system. In this paper, for the purpose of the state of charge (SOC) balancing and reactive power sharing, a multiagent system (MAS)-based distributed control model, which contai...
Article
The distributed control of a multi-microgrid (MMG) system composed of neighboring microgrids (MGs) is much more complex than that of an MG. In this paper, a fully distributed control method with fault tolerance control for MMG systems is proposed, which is a two-layer model, where a communication network composed of agents is the top layer, while a...
Article
Full-text available
Power electronics are widely used in energy conversion systems due to their high efficiency. Finding and replacing the defective power electronic modules timely by monitoring the ageing state of devices can greatly improve the security of power converters and reduce the loss caused by the device failure. Packaging-related fatigue has been identifie...
Chapter
In this paper, analysis for the influence of electric vehicle (EV) chargers on grid harmonics is conducted. The simulation model of the power distribution network with vehicle-mounted chargers is established, and the harmonic feature of the charger is analyzed. Considering different State of Charge (SOC) of the chargers and the relationship between...
Chapter
Aiming at the problems of traditional wolf pack algorithm (WPA): easy to fall into local optimal, large computational resource cost and low robustness, an improved wolf pack algorithm based on differential evolution (DIWPA) is proposed. By introducing the search factor for search wolves, maximum number of raid wolves, adaptive siege step size and d...
Article
Full-text available
In association with the development of intermittent renewable energy generation (REG), dynamic multiobjective dispatch faces more challenges for power system operation due to significant REG uncertainty. To tackle the problems, a day-ahead, optimal dispatch problem incorporating energy storage (ES) is formulated and solved based on a robust multiob...
Article
The economic dispatch in islanded microgrids (MGs) is a thorny problem due to the low equivalent inertia and the uncertainty of environmental conditions. In this paper, a two-layer model is proposed for economic dispatch in islanded MGs, in which an MG is considered as the lower layer, while a communication network is considered as the upper layer....
Article
The accurate thermal damage assessment and lifetime estimation are essential for ensuring the safety and reliability of semiconductor power devices. This study presents a thermal fatigue feedback loop method for evaluating the lifetime of an Insulated Gate Bipolar Transistor (IGBT) module considering the accumulated effect of solder layer fatigue....
Article
Full-text available
The averaging algorithm for consensus is widely used as a distributed secondary method for the control and management of microgrids. However, during each iteration it may break the system balance obtained by the primary control. In this paper, a distributed and networked method for the control and management of islanded microgrids is proposed, in w...
Article
An accurate lifetime model is needed in power electronic systems as a cost-effective means of improving reliability and performance assessment, which have long been highly desired to reduce the maintenance cost and to make the product more competitive in the market. Die-attach solder layer fatigue has been identified as one of the root causes of fa...
Article
In this paper, a two-layer model for islanded microgrids with communication constraints is proposed, where a key component of the model is a top layer communication network composed of agents over the bottom layer microgrid. Agents on the communication network collect present states of distributed generators to which they connect and exchange infor...
Article
In this paper, a two-layer network and distributed control method is proposed, where there is a top-layer communication network over a bottom-layer microgrid. The communication network consists of two subgraphs, in which the first is composed of all agents, while the second is only composed of controllable agents. The distributed control laws deriv...
Conference Paper
This paper presents a distributed optimal control method for stable and economical operation of active distribution network (ADN). The method incorporates a distributed constraint optimization problem (DCOP) model with distributed simulated annealing (DSAN) algorithm based on potential game. Moreover, the distributed optimal strategy is developed o...
Article
Full-text available
In islanded microgrids (MGs), the reactive power cannot be shared proportionally among distributed generators (DGs) with conventional droop control, due to the mismatch in feeder impedances. For the purpose of proportional reactive power sharing, a multiagent system (MAS)-based distributed control model for droop-controlled MGs is proposed. The pro...
Article
This study presents a study on non-linear accumulative modelling for power module lifetime estimation in nonaccelerated operation. The model focuses on solder fatigue based on monitoring the internal thermal resistance of the module. Initially, the relatively small junction temperature variation (ΔTj) cycles contribute little to the lifetime consum...
Article
This paper presents a series of experiment results on the ageing effects of cyclic junction temperature variations (ΔT<sub>j</sub>) of low amplitudes in power modules, to help the capturing of module reliability characteristics and the derivation of lifetime models in the future. Power cycling tests, for nonaged and aged modules, are designed to il...
Article
The paper presents a temperature gradient-based method for device state evaluation, taking the insulated-gated bipolar transistor (IGBT) modules as an example investigation. First, theoretical basis of this method is presented and the results from example calculation on temperature gradient indicate that the increased thermal resistance and power l...
Article
Full-text available
In this paper, cost based droop schemes are proposed, to minimize the total active power generation cost in an islanded microgrid (MG), while the simplicity and decentralized nature of the droop control are retained. In cost based droop schemes, the incremental costs of distributed generators (DGs) are embedded into the droop schemes, where the inc...
Article
Full-text available
In this paper, an agent-based decentralized control model for islanded microgrids (MGs) is proposed, which consists of a two-layer control structure. The bottom layer is the electrical distribution MG, while the top layer is the communication network composed of agents. An agent is regarded as a local control processor together with communication d...
Article
In this paper, an batch mode active learning algorithm combining with the benefits of self-training for solving the multiclass Brain-computer Interface (BCI) problem, which initially only needs a small set of labeled samples to train classifiers. The algorithm applied active learning to select the most informative samples and self-training to selec...
Article
Conventional feature extraction methods based on autoregressive and amplitude–frequency analysis assume stationarity in the Electroencephalogram signal along short time intervals in Brain–Computer Interface (BCI) studies. This paper proposes a feature extraction method based on phase space for motor imagery tasks recognition. To remodel the single...
Article
Electroencephalogram (EEG) signals are nonlinear time series, which are generally very noisy, nonstationary, and contaminated with artifacts that can deteriorate classification methods. This contribution presents an efficient scheme to extract features in phase space by exploiting the theoretical results derived in nonlinear dynamics for motor imag...
Article
Dynamic optimization is likely to play an important role in the reliability, quality, and efficiency of future power system, specifically for microgrid with renewable generation. This paper presents an improved hybrid optimization algorithm, called information exchange particle swarm optimization (IEPSO), to deal with the problem of dynamic optimal...
Article
An approach to evaluate harmonic contributions at the point of common coupling is presented in this paper. The proposed approach is based on robust partial least squares regression, which estimates system harmonic impedance by utilizing the signals of harmonic voltage and current measured synchronously at the point of common coupling. Consequently...
Article
We study the impact of adaptive degrees of trust on the evolution of cooperation in the quantum prisoner's dilemma game. In addition to the strategies, links between players are also subject to evolution. Starting with a scale-free interaction network, players adjust trust towards their neighbors based on received payoffs. The latter governs the st...
Article
Full-text available
We study the coevolution of quantum and classical strategies on weighted and directed random networks in the realm of the prisoner's dilemma game. During the evolution, agents can break and rewire their links with the aim of maximizing payoffs, and they can also adjust the weights to indicate preferences, either positive or negative, towards their...
Article
In this paper, quantum strategies are introduced within evolutionary games in order to investigate the evolution of quantum strategies on a small-world network. Initially, certain quantum strategies are taken from the full quantum space at random and assigned to the agents who occupy the nodes of the network. Then, they play n-person quantum games...
Conference Paper
In this paper, a novel method based on Hilbert-Huang transform (HHT) is presented to select optimal timefrequency patterns for single-trial motor imagery electroencephalograph (EEG). The method comprises three progressive steps: 1) employ Empirical Mode Decomposition (EMD) method to decompose EEG signal into a superposition of components or functio...
Conference Paper
In this research, an identification method of harmonic source, based on independent component analysis, was proposed. An unknown harmonic source in the equivalent circuit of power system was regarded as the signal source in the independent component analysis. The known voltage and current of PCC were taken as observed quantities. The independent co...
Article
Full-text available
In this paper, quantum strategies are introduced within evolutionary games in order to investigate the evolution of quantum and classical strategies on networks in the public goods game. Comparing the results of evolution on a scale-free network and a square lattice, we find that a quantum strategy outperforms the classical strategies, regardless o...
Conference Paper
To improve the ill-posed property of the inverse problem of electrical impedance tomography (EIT), a novel approach, which is based on the product of the residual norm and the penalty function norm (PRP), is presented to optimize the Tikhonov regularization parameters of EIT. To verify the feasibility and effectiveness of the proposed method, simul...
Article
Aiming to solve the drawbacks of traditional methane transducers such as narrow detecting range, poor stability, long response time, a novel methane transducer based on the principle of non-dispersive infrared absorption (NDIR) is designed. The operating principle of the NDIR and the components of the infrared transducer for measuring methane are i...
Article
The efficiency of power systems is based mainly on the continuity of the service, avoiding faults that suppose economic losses for utilities and users. It is very important to detect, locate and eliminate the faults of power systems, especially on power transmission lines. This paper presents a new method based on non-linear frequency analysis for...