It is required to design a DC motor to run a small size electric vehicle to be used inside an airport building to help the transportation of needy people. The vehicle is supposed to carry a maximum of 4 persons at the full load speed of 60 Km/hour. The engine is driven by a 200 V battery system capable to energize the motor for 120 Km before being recharged. The efficiency of the motor must be between 85 to 90 percent. The motor shaft diameter is expected to be within (0.2 to 0.4 m). Give the size of the battery required in AH (Ampere Hour). Choose and estimate all the design characteristics of the motor. Finally display all the power flow diagram results including efficiency and speed regulation of the motor. State all assumptions taken.
Load flow analysis
Load flow analysis is a study or numerical calculation of the power flow of power in steady-state conditions in any electrical system. It is used to determine the flow of power (real and reactive), voltage, or current in a system under any load conditions.
Nodal Matrix
The nodal matrix or simply known as admittance matrix, generally in engineering term it is called Y Matrix or Y bus, since it involve matrices so it is also referred as a n into n order matrix that represents a power system with n number of buses. It shows the buses' nodal admittance in a power system. The Y matrix is rather sparse in actual systems with thousands of buses. In the power system the transmission cables connect each bus to only a few other buses. Also the important data that one needs for have a power flow study is the Y Matrix.
Types of Buses
A bus is a type of system of communication that transfers data between the components inside a computer or between two or more computers. With multiple hardware connections, the earlier buses were parallel electrical wires but the term "bus" is now used for any type of physical arrangement which provides the same type of logical functions similar to the parallel electrical bus. Both parallel and bit connections are used by modern buses. They can be wired either electrical parallel or daisy chain topology or are connected by hubs which are switched same as in the case of Universal Serial Bus or USB.
Find the values of input and output power.
The weight of the car is 800 Kg
The weight of each person is 75 Kg
You may assume any missing parameters you need in the design appropriately (e.g., the rolling-resistance-power, air-resistance-power, the DC motor's parameters, ....etc)
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