thecodingchicken

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thecodingchicken

1. Why is sine wave output the preferred inverter output?
2. How do modified square wave inverters compare with square wave inverters in terms of power quality?
3. How is power quality relevant to inverter output?
4. Compare the basic system configurations of stand-alone, interactive, and multimode inverters.
5. WHat are the similarities and differences between thyristors and transistors?
6. Why can line-commutated inverters not be used in stand-alone systems?
7. How does higher-frequency control result in a better approximation of a true sine wave?
8. How are inverters different from power conditioning units?
9. Why is it important for inverters to manage their temperature?
10. How do stand-by losses affect inverter efficiency for various power levels?

thecodingchicken

1. What is the difference between charge acceptance and overcharge?
2. How do charge controllers protect battery banks from overcharge and over discharge?
3. Explain the differences between interrupting-type charge controllers and linear-type charge controllers.
5. How does PWM technology regulate charging current?
6. How does a diversionary charge controller utilize excessive energy?
7. Explain four primary charge controller setpoints.
8. What are the possible consequences of a charge controller hysteresis that is too narrow or too large?
9. Why must charge controller setpoints be temperature-compensated?
10. How does the distance between the charge controller and battery bank affect the regulation functions of a charge controller?
11. How do low-voltage modules control charging current?

thecodingchicken

1. What is the difference between a battery and a cell?
2. Describe the chemical reactions that take place when a load or conductor is connected to the positive and negative terminals of a battery. 
3. What factors affect the capacity of a cell or battery?
4. Explain the relationships between electrolyte specific gravity, freezing point, and state of charge(SOC).
5. WHy are traction batteries ideal for most PV applications?
6. What are some relative advantages and disadvantages of captive-electrolyte batteries?
7. How does average daily DOD affect autonomy?
8. How does discharge rate affect battery capacity?
9. How can series and parallel connections be used to design a battery system with a specific voltage and capacity?

thecodingchicken

Chapter 5 Writing Assignment


1. Describe the basic process of manufacturing PV cells. 
    
2. Explain the relationship between PV cells, modules, panels, and arrays. 

3. How does the photovoltaic effect limit the short-circuit current in PV devices?

4. Which methods can be used to estimate or calculate the maximum power point on an I-V curve?

thecodingchicken

from subprocess import Popen
import pywinauto
from pywinauto.application import Application
import autopy
import cv2
from gui_automation import GuiAuto
import gui_automation
import os
import time
import pyautogui