New high current meatgrinder experiments

Giorgi, D.; Long, Jie; Navapanich, T.; Lindner, K.; Griffin, A.H.; Zucker, O.

doi:10.1109/tmag.1986.1064636

Cited by 12 publications

(2 citation statements)

References 1 publication

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“…IAT put forward an inductive pulsed-power topology called slow transfer of energy through capacitive hybrid (STRETCH) meat grinder which is an improvement of the traditional meat grinder [6], [7]. In this topology, a single integrated gate-commutated thyristor (IGCT) is capable of breaking the charging currents of the order of about 4 kA [1].…”

Section: Introductionmentioning

confidence: 99%

Study on the Collaborative Triggering of Multiple STRETCH Meat Grinder With ICCOS Modules

Liu

et al. 2015

IEEE Trans. Plasma Sci.

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The energy density of the inductive energy storage systems is one order of magnitude higher than that of the capacitive ones. The slow transfer of energy through capacitive hybrid (STRETCH) meat grinder with inverse current commutation with semiconductor (ICCOS) devices put forward by Tsinghua University is a typical inductive pulsed-power supply for electromagnetic launch system, which has remarkable current amplification ability as a single module. However, one module cannot provide enough amplitude and width for the load current of the railgun launching. Therefore, the collaborative work of multiple inductive source modules is necessary for practical usage. In this paper, the designed inductive power supply system of about 1 MJ is composed of 40 STRETCH meat grinders with ICCOS modules. All the main switches are opened simultaneously to reduce the magnetic field coupling among the modules and make the current rising edge steep. The modules are divided into several groups. The triggering delays of the thyristors between every two adjacent groups are carefully designed. After the first triggers for all the modules, the energy stored in the capacitors can be further utilized with the second triggers. The numerical simulation results show that the appropriate collaborative triggering delay can increase the adjustability of the output current width and the second triggers can further increase the current width and the system efficiency. Therefore, the load current with flat shape, appropriate amplitude, and longer duration can be provided with modular design and collaborate triggering discharge of the multiple modules. This can provide a theoretical foundation for the future study and implementation. IndexTerms-Collaborative triggering, inductive pulsed-power supplies, modular design, slow transfer of energy through capacitive hybrid (STRETCH) meat grinder with inverse current commutation with semiconductor (ICCOS) devices.

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Section: Introductionmentioning

confidence: 99%

Study on the Collaborative Triggering of Multiple STRETCH Meat Grinder With ICCOS Modules

Liu

et al. 2015

IEEE Trans. Plasma Sci.

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“…IAT put forward a novel topology called STRETCH (Slow Transfer of Energy Through Capacitive Hybrid) meat grinder [1,6] . It is based on the improvement for the traditional meat grinder [7,8] . They implemented a prototype with 3.8 kA charging current, 20kA discharging current and 1.5kJ total energy.…”

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confidence: 99%

Study on the Recovery Circuit Based on Multi-Module STRETCH Meat Grinder

Liu

et al. 2014

AMM

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Inductive pulse power supplies attract interests since their energy densities are one order of magnitude higher than those of capacitive ones at the same power output capacity. STRETCH meat grinder was put forward by IAT (Institute of Advanced Technology). Energy Recovery circuit was developed to improve the energy efficiency and reduce the energy loss of the whole circuit. The residual energy can be recovered by triggering the related thyristors. Simulation results show that the topology with energy recovery circuit can recover most of the residual energy by triggering thyristors and has potential applications for high energy systems in the future.

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The energy recovery sub-circuit for multiple stages of the stretch meat grinder with iccos circuit

Liu¹,

Peng²,

Bai³

2020

J. Phys.: Conf. Ser.

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The STRETCH meat grinder and the ICCOS are two typical inductive pulsed power supply circuits for electromagnetic launch system. On the basis of combing both, a new topology-STRETCH meat grinder with ICCOS-was put forward by Tsinghua University in 2013. After launching the railgun load, all of the remaining energy is stored in the energy transfer capacitor of the circuit. In this paper, the corresponding recovery circuit is designed for the circuit containing four STRETCH meat grinder with ICCOS circuits connected in a XRAM way in order to reuse the remaining energy. The prototype system has 4kA charging current, and thus 28.19kJ magnetic energy. More remaining energy can be recovered by triggering the related thyristors with more times. Simulation results show that the topology with the suggested energy recovery circuit can roughly recover 1/3 of the residual energy to the primary power and has potential prospects for high energy storage systems in the future.

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New high current meatgrinder experiments

Cited by 12 publications

References 1 publication

Study on the Collaborative Triggering of Multiple STRETCH Meat Grinder With ICCOS Modules

Study on the Collaborative Triggering of Multiple STRETCH Meat Grinder With ICCOS Modules

Study on the Recovery Circuit Based on Multi-Module STRETCH Meat Grinder

The energy recovery sub-circuit for multiple stages of the stretch meat grinder with iccos circuit

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