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This paper reports power quality measurements in thirteen locations of Macao. The results are analyzed and compared with relevant standards for evaluating the quality of power in Macao. The data collected provides the initial core of documentation for future reference and follow-up of the trends at the end-users.
This paper reports some findings on harmonic measurement at several buildings of Macao. The findings are current harmonic, harmonic current is caused by variable refrigerant volume (VRV) air-conditioning system, harmonic effect on capacitor, even order current harmonic and neutral current harmonic, they are for reference for Macao to set up the harmonic standard limits in the future.
Power quality monitoring results of a modern building is presented and evaluated in this paper. Excessive current quality problems are detected, which is caused by large numbers of nonlinear loads, such as PCs, printers and TVs, in the building. In order to suppress the current harmonics and the neutral current, parallel power quality compensators should be applied. The two voltage source inverter...
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