Design of high precision power quality testing precision calibrator

2020 ◽  
Author(s):  
Cheng Guo ◽  
Ke Yin ◽  
Xiaohong Huang
Keyword(s):  
Power Quality ◽  
High Precision ◽  
Quality Testing

A real-time system for power quality testing

1998 ◽  
Vol 47 (6) ◽  
pp. 1464-1468 ◽  
Author(s):  
A. Lakshmikanth ◽  
M.M. Morcos ◽  
W.N. White
Keyword(s):  
Real Time ◽  
Power Quality ◽  
Time System ◽  
Real Time System ◽  
Quality Testing

scholarly journals Monitoring and Analysis of Power Quality in Photovoltaic Power Generation System

2018 ◽  
Vol 64 ◽  
pp. 06008
Author(s):  
Cui JI ◽  
Siming HUA ◽  
Bingbing ZOU ◽  
Hua ZHANG ◽  
Chang DIAO ◽  
...  
Keyword(s):  
Power Generation ◽  
Power Quality ◽  
Power Grid ◽  
Solar Photovoltaic ◽  
Testing Method ◽  
Photovoltaic Power ◽  
Quality Testing ◽  
Harmonic Voltage ◽  
Power Generation System

Solar photovoltaic (PV) has been developed rapidly due to its clean and green renewable characteristics. The connection of photovoltaic power generation to the traditional grid system is bound to bring power quality problems. Based on above, this paper introduces the power quality testing method of photovoltaic grid-connected power grid in detail. And then takes the Shanghai Qingpu Nanrong distributed photovoltaic power generation for example, which is the largest single roof photovoltaic power station in Shanghai by far, to use the method to test its power quality. The power quality index include harmonic, voltage imbalance, and frequency deviation. The test and analysis provide a reference for the monitoring and analysis of power quality of photovoltaic grid-connected power grid.

A New Kind of Smart Dual DSP2812 Power Quality Monitor Based on Dedicated Users

2014 ◽  
Vol 1008-1009 ◽  
pp. 701-708
Author(s):  
Le Feng Cheng ◽  
Tao Yu
Keyword(s):  
Power Quality ◽  
High Precision ◽  
Low Cost ◽  
Measurement Data ◽  
Electric Energy ◽  
High Capacity ◽  
Quality Measurement ◽  
Digital Signal ◽  
Smart Meter ◽  
Synchronous Sampling

Focus on the increasingly prominent problems of power quality of dedicated users, study on solving electric energy problems, especially for harmonic pollution, was essential. This paper to study the method of testing and calculating electric energy index, then designed hardware to monitor and analyze power quality measurement data. The hardware was developed base on dual DSP2812, which was very advanced digital signal processing chip, and the hardware utilized high precision instantaneous synchronous sampling chip MAX1324, extended RAM and FLASH, RS232 communication circuit, high capacity SD card storage circuit, etc. The dual DSP power quality smart meter was tested and applied in dedicated users and its reliability, practicability, availability and accuracy was authenticated. This smart meter also has advantages of easy to carry, low cost, high precision, easy to promote, etc. can effectively meet power quality management of dedicated users.

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