The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper further describes our work presented in Industry Application Society 2016 Conference, with more details related to the control and operation of the microgrid. The DC microgrid facility was custom designed and implemented at CCNY with minimal off-the-shelf components to enable flexibility and reconfiguration capability. The design steps, requirements, and experimental results of the developed...
As more number of distributed generators like PV are penetrated into the power system network, the interaction of the filter elements associated with PV inverter and rest of the distribution system elements on network resonance needs to be investigated. Although the recent investigation of network resonance is focusing only on distributed generators like PV, the impact from distribution lines coming...
This paper shows the relationship between switching/sampling frequency, samples number and sine wave fundamental frequency with the intention of giving a basis to understand how the algorithm was designed. It also punctuates mathematical and implementation constraints considered in the optimization algorithm design. Similarly it explains the numerical methods and procedures used in the algorithm to...
Software Defined Networking (SDN) enables a centralised entity - the controller - to monitor the network’s status by collecting traffic statistics such as packets, bytes, etc. Each statistic is associated with a forwarding table entry (FTE) in a switch whose structure and format is specified by the OpenFlow standard (de-facto SDN standard). For a flow with a FTE, its statistic is easily...
This paper presents a concise review of the novel matrix converter technology widely recognized in the last two decades attracting all scientific institutions, industrial markets, and governmental foundations towards developing it. The appealing features of the topology along with its structural characteristics are clearly highlighted. A state-of-art demonstration of the highly adopted modulation...
Model predictive control (MPC) is a promising alternative for power electronics and electric drives. Research on fault diagnosis and fault-tolerant control for power converters with MPC is insufficient. Accurate fault diagnosis and fault-tolerant control solutions with easy implementation are very desirable. In this work we propose a novel current based fault diagnosis method of one-and two-phase...
Vibration monitoring is thought as an effective tool for the condition monitoring of OLTC used in converter transformer, since the vibration signals are closely related to its mechanical switch-over process from one tap position to another position. Based on the vibration signals measured in some R type OLTC in converter station, phase space reconstruction is used to reconstruct the vibration signals...
Penetration levels of electric vehicles (EVs) and distributed energy resources (DER) increase as the power distribution grid continues to change. This leads to a significant variation in the distribution system load profile, reduce the voltage quality and create congestion in some nodes of the network. Distribution network reconfiguration (DNR) presents an alternative to reduce the impact of EVs and...
With rapid improvement in information and communication technologies, industrial automation systems are under the revolution. Legacy industrial automation systems lack flexibility and interoperability due to multi-layered architecture. From industrial cyber-physical system point of view, a new system architecture is needed to allow vertical and horizontal integration between all devices and systems...
In this paper, a L-band phased array radiometer for sea surface salinity is developed. To reduce the mass and volume of real-aperture microwave radiometers, the radiometer employs a phased array and a receiver channel, which can observe target scenes with electric scanning. The L-band phased radiometer is analyzed using noise waves. The calibration method of the radiometer is introduced. A Radio Frequency...
This paper presents a second-order accurate method for circuit simulation with idealized power electronic switches. The method combines the integration method TR-BDF2 with an improved quadratic interpolation technique for the localization of switch events. Next to preserving second-order accuracy after interpolation, the technique also preserves the capability to damp fast transients caused by small...
Increasing densification in future wireless networks means that user association will play an ever more critical role in the network decision process in order to manage the large number of base stations and users. Though conventional user association aims to maximize a sum rate or capacity related objective, user rate fairness could become a more important consideration for dense networks. In this...
In this study a family of Nine-Switch Converters is observed. In proposed circuits intermediate DC-link elements interface input and output converter parts through a nine-switch matrix chain. Such approach allows achieving step-up voltage capability with low THD index. The article gives general information about principle of operation and possible control strategies, considers basic performances and...
We propose a highly scalable packet-switching architecture that suits for demanding Data Center Networks (DCNs). The design falls into the category of buffered multistage switches. It affiliates the three-stage Clos-network and the Networks-on-Chip (NoC) paradigm. We also suggest a congestion-aware routing algorithm that shares the traffic load among the switch's central modules via interleaved connecting...
With the popularization and application of microgrid projects, the multi-microgrids (MMGs) with three-phase / single-phase (TP/SP) architecture is formed in a plurality of adjacent microgrids with certain needs. Due to the complexity of the topology and the diversity of the power supply modes, the MMGs can operate in various modes. It is an urgent problem to realize the flexible seamless switching...
China's Internet has been over 30 years of development, but there are still many problems. According to China's 2011–2015 correlation data, the evaluation index system of internet gaps established. A clustering is on the current situation of the development of Internet of China's 31 provinces and regions. The digital divide phenomenon focus on Internet development indicators measuring is obvious in...
In this paper, we consider iterative learning control(ILC) for discrete-time multi-agent system formation with one-step random time-delay. Random delays during transmission seriously affect the convergence performance of multi-agent formation. Based on one-step random time-delay model, the transition matrix of system is derived, which contains the impact factors of random delays. A learning control...
In this paper we present a correctness proof for Infosoft e-Detailing 1.0 presentation software using Isabelle proof assistant. This work illustrates a method of proving correctness of parallel software using proof assistants. Here we concentrate on the state-based approach for proving a safety property. We also give a comparison of this approach with the correctness proof method that was applied...
The paper offers the simple voltage source multilevel inverter space vector PWM algorithm (based on the oblique-angled coordinates of two delta voltages) with the optimum three-segment non-symmetric vectors switching sequence variant providing the instantaneous output voltage quarter-wave symmetry. The comparisons with the five-segment variant by the voltage waveforms, spectra and THD are performed...
The comparisons of the new offered optimum three-segment and the previously considered five-segment variants of the space vectors switching sequence are continued in values of the first three orders of the n-order integral voltage harmonics factors and in values of the first three orders of some unified indices, the so-called n-order aggregate switchings and integrated voltage harmonics factors. The...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.