Ontoseno Penangsang

Learn More
–This paper proposes a new scheme Pulse Width Modulation (PWM) to overcome low performances of conventional PWM control strategy in Cascaded Multilevel Inverter (ACMLI). This scheme advance conventional Carrier-Based PWM (CBPWM) using triangle carrier in different amplitudes. By this scheme ACMLI can control by PWM that according to dc voltage amplitude(More)
This paper presents a gravitational search algorithm (GSA) method for voltage control, which reduces transmission losses by adjusting the reactive power variables, such as generator voltages and other sources of reactive power, such as capacitor banks, and provides better system voltage profile. The objective function of the proposed method is to minimize(More)
This paper proposes an approach for optimal power flow with incorporation of preventive and corrective control. The approach is useful for operation planning to guarantee secure operation under both normal and contingency states. Therefore, the approach consists of main problem and sub problem representing normal and contingency states, respectively. In(More)
This paper proposes a quadratic programming for solving the dynamic direct current optimal power flow (DDCOPF). The DDCOPF solves OPF with multi load levels in which ramp rate of committed units become coupling between two series load levels. To overcome this problem, a very large matrix may be required. The more number of load levels are considered, the(More)
Power systems have increased in size and complexity due to rapid growth of widespread interconnection. This situation will make power system operated closer to steady-state stability limit (SSSL) resulting in higher probability voltage instability or voltage collapse. This paper presents SSSL assessment in power system using Extreme Learning Machine (ELM)(More)
Detection of power quality disturbance is most essential to ensure the good Power Quality (PQ). The power disturbance signal will reduce the reliability of power system and create some disadvantage on operation process. Aging of electrical device, incorrect measurement, devices malfunction are the consequence of this condition. The characteristic of power(More)
Power systems in all over the world have increased in size and complexity due to rapid growth of widespread interconnection. This situation will make power system operated closer to steady-state stability limit (SSSL) resulting in higher probability voltage instability or voltage collapse. This paper presents SSSL assessment in power system using Artificial(More)
This paper deals with dynamic optimal power flow (DOPF) considering geothermal power plant under take or pay (TOP) contract. As located in ring of fire, Indonesia has high potential of geothermal resources. Therefore, geothermal power plant becomes promising solution of power shortage in Indonesia. However, it takes high investment cost to develop(More)
This paper will discuss about impact of nonlinear load in residential costumer to harmonic distortion. Electricity consumer behaviour particularly in the household sector with the development of technology will evolve. Equipment used for everyday purposes continues to grow and has become a lifestyle. The modern life is becoming fabulous with the invention(More)
Renewable energy sources and batteries are the important components to supply power on the stand-alone microgrid. Optimization of the stand-alone microgrid is needed to get the lowest energy generation const. The saving generation cost can be Renewable energy sources and batteries is an important component of the power supply stand-alone microgrid.(More)