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Frontiers of Information Technology & Electronic Engineering
ISSN 2095-9184 (print), ISSN 2095-9230 (online)
2020 Vol.21 No.4 P.604-614
A new approach for analyzing the effect of non-ideal power supply on a constant current underwater cabled system
Abstract: The effect of a constant current (CC) power supply on the CC ocean observation system is a problem that once was neglected. The dynamic characteristics of the CC power supply may have great influence on the whole system, especially the voltage behavior in the event of load change. This needs to be examined. In this paper, a method is introduced to check whether the CC power supply can satisfy the dynamic requirements of the CC ocean observation system. An equivalent model to describe the non-ideal CC power supply is presented, through which the dynamic characteristics can be standardized. To verify the feasibility of this model, a minimum system of a single node in the CC ocean observation system is constructed, from which the model is derived. Focusing on the power failure problem, the output voltage responses are performed and the models are validated. Through the model, the dynamic behavior of the CC power supply is checked in a practical design.
Key words: Non-ideal power supply, Constant current input, Ocean observation system
臧玉嘉，陈燕虎，杨灿军，李德骏，陈泽健，Gul MUHAMMAD
浙江大学流体动力与机电系统国家重点实验室，中国杭州市，310027
摘要：在过去，非理想恒流电源对恒流海洋观测系统的影响是一个被忽视的问题。事实上，恒流电源的动态特性对整个系统，特别是对负载变化时的动态响应有很大影响。因此，在实际工程应用中有必要对非理想恒流电源进行校核。本文介绍一种校核非理想恒流电源是否满足水下恒流缆系统动态特性的方法，并提出一种描述非理想恒流电源的等效模型。通过该模型，可规范恒流电源动态特性的技术指标。首先，构造恒流海洋观测网络系统中单节点的最小系统，并推导其数学模型。其次，针对系统可能存在的掉电问题，分析对系统的输出电压响应，并验证所提模型。最后，采用所提模型校核实际应用中的恒流电源动态特性。
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DOI:
10.1631/FITEE.1800737
CLC number:
TP202
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On-line Access:
2024-08-27
Received:
2023-10-17
Revision Accepted:
2024-05-08
Crosschecked:
2020-02-19