Journal
ENERGY REPORTS
Volume 8, Issue -, Pages 52-61Publisher
ELSEVIER
DOI: 10.1016/j.egyr.2022.08.085
Keywords
MVDC; Voltage measurement; Current measurement; TMR
Categories
Funding
- State Grid Cooperation of China Science and Technology project [5700202218218A-1-1-ZN]
Ask authors/readers for more resources
This paper analyzes the technical specifications of voltage and current measurement apparatuses for MVDC systems and compares the adaptability of sensors. Through the construction of simulation models for testing, appropriate apparatuses are proposed for MVDC system measurements. The research results are significant for the research of sensors for MVDC systems and engineering applications.
The medium-voltage direct-current (MVDC) electrical energy system has attracted increasing attention because of its high energy density and low carbon potential. Accurately characterizing, measuring, and monitoring the DC voltage and current are crucial for the control, protection, and energy metering of the MVDC system. Nonetheless, so far, neither industry nor academia has reached no consensus on the technical specifications of voltage and current measurement apparatuses for the MVDC systems. This paper analyzes the technical specifications of voltage and current measurement apparatuses for typical +/- 10kV MVDC systems considering the systems requirements and compares the adaption of the voltage and current sensors. Typical two-terminal and four-terminal MVDC system simulation models are constructed. The events that would generate the worst transient waveforms are modeled respectively to figure out the technical specifications for the control, protection, and metering systems. The closed-loop tunnel magnetoresistance (TMR) based current sensor and the resistors-based voltage divider are proposed as the most suitable apparatuses for MVDC system measurements. The research results can guide the research of sensors for MVDC systems and provide references for engineering applications. (C) 2022 The Author(s). Published by Elsevier Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available