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This paper presents a new test methodology for verifying the interoperability and application performance of PMUs and PMU-enabled IEDs at the device and system level. Two types of tests are defined to evaluate the performance of synchrophasor devices from two different aspects: design and application. The interoperability between PMUs, time synchronization options, and phasor data concentrators (PDCs)...
Evaluating performance of PMUs to verify the consistency of phasor measurements is of a great importance since it promotes the interoperability among PMUs from different manufacturers. This paper presents a set of test methodology and tools for evaluating the dynamic performance of PMUs when exposed to a step change of input signals. A phasor estimation scheme is proposed to achieve high accuracy...
Frequency, amplitude and phase angle are three major parameters describing a stationary sinusoidal signal. In power system, many applications such as the state monitoring and protective relaying measure these parameters as performance indices or critical variables in the algorithm criteria respectively. This paper proposes a new method for estimating the power system frequency and phasors in real...
Performance evaluation of PMUs to confirm the consistency of phasor measurements is of a great importance since it promotes the interchangeability among PMUs from different manufacturers. This paper presents a method for evaluating the dynamic performance of PMUs when exposed to a step change of input signals. A phasor estimation scheme is proposed to achieve high accuracy of reference phasors. An...
DC offset has significant effect on extracting fundamental frequency components. It directly impacts the accuracy of the fundamental frequency component based protective relaying algorithms. This paper proposes a novel method for estimating the fundamental phasor while eliminating the DC offset using improved recursive wavelet transform. The proposed approach converges to the actual value in less...
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