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Topology (electrical circuits)

About: Topology (electrical circuits) is a(n) research topic. Over the lifetime, 33316 publication(s) have been published within this topic receiving 397651 citation(s). The topic is also known as: topology. more


Open accessProceedings Article
Scott E. Fahlman1, Christian Lebiere1Institutions (1)
01 Jan 1989-
Abstract: Cascade-Correlation is a new architecture and supervised learning algorithm for artificial neural networks. Instead of just adjusting the weights in a network of fixed topology. Cascade-Correlation begins with a minimal network, then automatically trains and adds new hidden units one by one, creating a multi-layer structure. Once a new hidden unit has been added to the network, its input-side weights are frozen. This unit then becomes a permanent feature-detector in the network, available for producing outputs or for creating other, more complex feature detectors. The Cascade-Correlation architecture has several advantages over existing algorithms: it learns very quickly, the network determines its own size and topology, it retains the structures it has built even if the training set changes, and it requires no back-propagation of error signals through the connections of the network. more

Topics: Network topology (62%), Network simulation (61%), Artificial neural network (54%) more

2,646 Citations

Proceedings ArticleDOI: 10.1109/PTC.2003.1304403
23 Jun 2003-
Abstract: This paper presents a new multilevel converter topology suitable for very high voltage applications, especially network interties in power generation and transmission. The fundamental concept and the applied control scheme is introduced. Simulation results of a 36 MW-network intertie illustrate the efficient operating characteristics. A suitable structure of the converter-control is proposed. more

Topics: Topology (electrical circuits) (56%), Network topology (54%), Cascade converter (54%) more

2,517 Citations

Journal ArticleDOI: 10.1109/TIE.2007.907044
Jose Rodriguez1, Steffen Bernet2, Bin Wu3, J. Pontt4  +1 moreInstitutions (4)
Abstract: This paper presents a technology review of voltage-source-converter topologies for industrial medium-voltage drives. In this highly active area, different converter topologies and circuits have found their application in the market. This paper covers the high-power voltage-source inverter and the most used multilevel-inverter topologies, including the neutral-point-clamped, cascaded H-bridge, and flying-capacitor converters. This paper presents the operating principle of each topology and a review of the most relevant modulation methods, focused mainly on those used by industry. In addition, the latest advances and future trends of the technology are discussed. It is concluded that the topology and modulation-method selection are closely related to each particular application, leaving a space on the market for all the different solutions, depending on their unique features and limitations like power or voltage level, dynamic performance, reliability, costs, and other technical specifications. more

2,051 Citations

Proceedings ArticleDOI: 10.1109/INFCOM.2000.832213
Ram Ramanathan, R. Rosales-Hain1Institutions (1)
26 Mar 2000-
Abstract: We consider the problem of adjusting the transmit powers of nodes in a multihop wireless network (also called an ad hoc network) to create a desired topology. We formulate it as a constrained optimization problem with two constraints-connectivity and biconnectivity, and one optimization objective-maximum power used. We present two centralized algorithms for use in static networks, and prove their optimality. For mobile networks, we present two distributed heuristics that adaptively adjust node transmit powers in response to topological changes and attempt to maintain a connected topology using minimum power. We analyze the throughput, delay, and power consumption of our algorithms using a prototype software implementation, an emulation of a power-controllable radio, and a detailed channel model. Our results show that the performance of multihop wireless networks in practice can be substantially increased with topology control. more

Topics: Logical topology (64%), Network topology (61%), Power control (61%) more

1,719 Citations

Journal ArticleDOI: 10.1007/S001580050176
Ole Sigmund1Institutions (1)
Abstract: The paper presents a compact Matlab implementation of a topology optimization code for compliance minimization of statically loaded structures. The total number of Matlab input lines is 99 including optimizer and Finite Element subroutine. The 99 lines are divided into 36 lines for the main program, 12 lines for the Optimality Criteria based optimizer, 16 lines for a mesh-independency filter and 35 lines for the finite element code. In fact, excluding comment lines and lines associated with output and finite element analysis, it is shown that only 49 Matlab input lines are required for solving a well-posed topology optimization problem. By adding three additional lines, the program can solve problems with multiple load cases. The code is intended for educational purposes. The complete Matlab code is given in the Appendix and can be down-loaded from the web-site more

Topics: Topology optimization (54%), Line (geometry) (53%), Topology (electrical circuits) (51%) more

1,604 Citations

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Topic's top 5 most impactful authors

Ebrahim Babaei

128 papers, 4.7K citations

Frede Blaabjerg

90 papers, 3.2K citations

Kamal Al-Haddad

72 papers, 1.4K citations

Mehran Sabahi

57 papers, 1.8K citations

Cursino B. Jacobina

47 papers, 309 citations

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