Design of Digital Integrator for Rogowski Coil Sensor
Permanent address of the item is
Summary ViewShow full item record
The goal of this thesis is to create a well performed digital Rogowski coil integrator on PC for later implementation on FPGA, and the final filter is applied with fixed point arithmetic. Integrator’s design and optimization based on the specification provided by the company. During the implementation, the constraints of the hardware should be taken into account, and the design method needs to be verified by simulations and practical experiments and tests. There are two design phases to implementing the filter. The first phase is software implementation, the integrator is realized by creating the MATLAB and C models. The other phase is hardware realization. By software application, the filter could be simu-lated with targeted test benches. After the software application is verified, hardware implementation could be carried out if it is necessary. In this thesis, RTL model is de-rived from the C model via translating it with VHDL. Afterward, the integrator is im-plemented on FPGA board for practical field tests. From the tests, the validity, practicability of the Rogowski integrator have to be veri-fied from the perspective of both functionality and performance. The software imple-mentation of the integrator is capable of filtering different kinds of the input signals with reasonable and acceptable outputs. Meanwhile, in the practical application, the integrator performed well when dealing with various earth fault cases. All, in brief, this Rogowski integrator has to satisfy the standard of the design specification.