Development of a wavelet-based algorithm to detect and determine ...

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2.4. OPERATION MODES 9 cessed. Figure 2.1 shows the front and the back of the power quality recorder SIMEAS R. On the front side there are some status LED’s. They can be assigned to the different status signals from SIMEAS R. There are a few buttons also to block the device or to start a manual recording. Under the power switch there is a serial interface to configure the device and to transfer the recordings. On the back side there is the power supply connector and the data acquisition units. There a parallel interface to connect a printer and a serial interface to connect a modem for example. It is possible to attach the SIMEAS R with an internal modem or ISDN card also. Figure 2.1: Connections of SIMEAS R The SIMEAS R in the laboratory is equipped with the data acquisition units VCDAU and VDAU. The VCDAU is used in the laboratory for measuring voltage and current in the power network simulator and VDAU is measuring the voltage in the power supply. 2.4 Operation modes The SIMEAS R has three basic operation modes:
2.5. SOFTWARE (OSCOP P) 10 Normal operation In normal operation, all functions and triggers are active. Depend- ing on the configured averaging time, recordings are performed continuously . If a trigger limit is violated, a recording begins with prefault values, fault pro- gression and post-fault values. The cause of the trigger violation is stored with the header data. Depending on the configuration, any SIMEAS R connected via the LAN network is also triggered. Blocked operation In blocked operation, no recording is initiated when a trigger con- dition occurs. All triggers are inactive, and the signalling relay is not energized. The device is only active in the "digital recorder" mode. This operating mode is selected when maintenance work is carried out on the affected feeders. Test operation In test operation, as in normal operation, all functions and triggers are active, however, the recorded events always have "Test" entered as their cause. The signalling relay "Event currently being recorded" is not energized. This operating mode is used to test the SIMEAS R. The operating modes can be selected via the keyboard. Remote control using OSCOP P (see chapter 5) is also possible. 2.5 Software (OSCOP P) 2.5.1 Application range OSCOP P is a program package for transmission and diagnosis of measured values, which have been recorded with power quality recorder SIMEAS R. The user is able to control the transmission and diagnosis in manual or automatic operation. The results are send to the printer.
Page 1 and 2: Development of a wavelet-based algo
Page 3 and 4: Eidesstattliche Versicherung Ich ve
Page 5 and 6: 2.5.2 Software modules . . . . . .
Page 8 and 9: Chapter 1 Introduction Electrical p
Page 10 and 11: Chapter 2 Power Quality Recorder Si
Page 12 and 13: 2.2. FUNCTIONS 5 2.2.2 Power data r
Page 14 and 15: 2.3. INTERFACES 7 The binary inputs
Page 18 and 19: 2.5. SOFTWARE (OSCOP P) 11 2.5.2 So
Page 20 and 21: 2.5. SOFTWARE (OSCOP P) 13 Figure 2
Page 22 and 23: 3.1. SIMEAS R CONFIGURATION 15 •
Page 24 and 25: 3.2. LABORATORY USE 17 Then the SIM
Page 26 and 27: 4.2. SOURCES OF TRANSIENT DATA 19 c
Page 28 and 29: 4.3. FILES FOR DATA EXCHANGE 21 4.3
Page 30 and 31: 4.3. FILES FOR DATA EXCHANGE 23 p=
Page 32 and 33: 4.3. FILES FOR DATA EXCHANGE 25 ft
Page 34 and 35: 4.4. DIFFERENCES BETWEEN THE 1991
Page 36 and 37: Figure 5.1: Structure chart of the
Page 38 and 39: 5.1. DATA STRUCTURE OF DATA STORAGE
Page 40 and 41: Chapter 6 Wavelets 6.1 Introduction
Page 42 and 43: 6.2. BASIC IDEAS OF THE WAVELET TRA
Page 60 and 61: Chapter 7 Algorithm to determine ce
Page 62 and 63: 7.2. ANALYZATION OF THE DISTURBANCE
Page 64 and 65: 7.2. ANALYZATION OF THE DISTURBANCE
Page 66 and 67:
7.2. ANALYZATION OF THE DISTURBANCE
Page 68 and 69:
7.3. MATLAB IMPLEMENTATION 61 7.3.2
Page 70 and 71:
Chapter 8 Conclusion and Look-Out T
Page 72 and 73:
LIST OF FIGURES 65 6.8 Scale level
Page 74 and 75:
Bibliography [1] Ronald W. Schafer
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