A Simulation System for Satellite Lithium-ion Battery
A simulation system, lithium ion technology, applied in control/regulating systems, adjusting electrical variables, instruments, etc., can solve the problems of high test cost, incomplete coverage of working conditions, low efficiency, etc., to avoid waiting time and improve test efficiency. , the effect of preventing the spread of faults
Active Publication Date: 2015-11-25
CHINA ACADEMY OF SPACE TECHNOLOGY
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Problems solved by technology
[0005] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, and provide a communication satellite lithium-ion battery pack simulation system, which is used to solve the problem of high cost, low efficiency, and incomplete coverage of working conditions for the single acquisition performance test of the equalization equipment. Problems, Improving Testing Efficiency for Communications Satellites
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[0016] The present invention test system such as figure 1 As shown, it mainly includes: battery voltage simulation module, By-pass simulation module, and industrial computer based on PXI bus.
[0017] 1. Battery voltage simulation module
[0018] The battery voltage simulation module is used to simulate the voltage output of lithium-ion battery cells, such as figure 2 shown. The battery voltage simulation module consists of three isomorphic DA sub-modules in series, and each DA sub-module can simulate the model of 8 lithium-ion battery cells in series. Each analog quantity in the DA sub-module is output in series with the By-pass analog module. Taking DA sub-module 1 as an example, the output differential voltage range between the positive terminal and the negative terminal of each cell is: 0-5V, after 8 cells are connected in series, the output voltage range of DA sub-module 1 is: 0-40V . DA sub-module 2, DA sub-module 3 and DA sub-module 1 are completely isomorphic. Af...
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Disclosed is a satellite lithium ion storage battery simulating system. The satellite lithium ion storage battery simulating system mainly comprises a storage battery voltage simulating module a By-pass simulating module and a PXI-bus-based (PCI (peripheral component interconnection) extensions for instrument-bus-based) IPC (industrial personal computer), wherein the storage battery voltage simulating module is used for simulating single voltage output of a lithium ion storage battery and further comprises a bus interface control circuit, a DA (digital / analog) output circuit and an isolating circuit; the By-pass simulating module is used for simulating the on-off function of a single By-pass device of the lithium ion storage battery and further comprises a bus controller and a relay; the PXI-bus-based IPC is used for achieving integration, power supply and control of the storage battery voltage simulating module and the By-pass simulating module as well as control and data monitoring of the modules. The satellite lithium ion storage battery simulating system can solve the problems of high testing cost, low efficiency, incomplete working condition coverage and the like in single performance collection of a balanced device and accordingly improve the testing efficiency.
Description
technical field [0001] The invention relates to a simulation device of a lithium-ion storage battery for satellites, which can be used for ground testing of satellite-borne equipment. Background technique [0002] Currently, high-orbit communication satellites generally use NiH 2 The battery is used as an energy storage device, but its weight is large and its energy-to-weight ratio is low, which cannot meet the weight index requirements of a large-capacity communication satellite platform. In order to meet the weight reduction requirements of satellite platforms, many large-capacity communication satellites have generally adopted lithium-ion batteries as energy storage devices. Lithium-ion batteries have a high energy-to-weight ratio and high energy-to-volume ratio, which can greatly increase the load ratio of satellite platforms and reduce launch costs. . [0003] The high-orbit communication satellite lithium-ion battery pack is generally composed of dozens of battery ce...
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IPC IPC(8): G05F1/56
Inventor 徐楠魏强唐健熊晓将万小磊孔令军潘瑞
Owner CHINA ACADEMY OF SPACE TECHNOLOGY