Abstract
An example of Sandakan power grid problem is presented in this paper. Sandakan is a suburb in east coast of Sabah state of Malaysia. Stability problem occurs due to the increase in load demand, lack of generation sources and inadequate supply. The tripping disturbances occur frequently in the network which is contributing to voltage instability. In this paper dynamics stability of 33 kV power grid as related to Sandakan network is analyzed and simulated. The analysis is completed by modelling the network data in Power System Simulation for Engineering (PSS/E) software and simulate the transient stability of generator, exciter and governor during a three phase fault occurs on a far and close distance from a bus, and determine the critical clearing time as well as swing curve of rotor angle. The output values of electrical power, machine speed, rotor angle and bus voltage are observed.
Highlights
A power system under normal operating conditions may face a contingency such as transmission element outages, generator outages, loss of transformer, and sudden change in the load or faults [1]
The analysis is completed by modelling the network data in Power System Simulation for Engineering (PSS/E) software and simulate the transient stability of generator, exciter and governor during a three phase fault occurs on a far and close distance from a bus, and determine the critical clearing time as well as swing curve of rotor angle
Based on the Sandakan grid’s simulation in PSS/E, it can be seen from Figure 2 that all the machines in the system are in good initial condition
Summary
A power system under normal operating conditions may face a contingency such as transmission element outages, generator outages, loss of transformer, and sudden change in the load or faults [1]. Voltage stability is related to change in the load This stability is the ability of a power system to maintain steady voltages at all busses from a given initial condition after being subjected to a disturbance [6]. PSS/E will be used for characterizes the power system transmission network and generation performance for both load flow analysis and transient analysis [5]. The following information needed for modelling the network This includes bus data, branch data, load data, generator data and transformer data.
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