A power management system is responsible for efficiently managing the distribution and usage of electrical power in various applications. Its main purpose is to optimize the flow of electricity to ensure reliable operation while minimizing waste and maximizing energy efficiency. The system monitors the power supply, analyzes the demand, and adjusts the distribution accordingly. It controls the voltage levels, regulates the frequency, and protects against power surges or outages. It can also prioritize power allocation to different devices or areas based on their importance or priority.   By intelligently managing power usage, the system helps to reduce energy consumption, lower costs, and extend the lifespan of electrical equipment. It plays a crucial role in industries, buildings, and even portable devices, contributing to a more sustainable and efficient use of electrical power resources.