Made Andik Setiawan
@polman-babel.ac.id
Electronics Engineering and Informatics
Politeknik Manufaktur Negeri Bangka Belitung
RESEARCH INTERESTS
Renewable Energy, Electronics, Automation, Robotics
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Made Andik Setiawan and Eko Sulistyo
AIP Publishing
Made Andik Setiawan, Eko Sulistyo, and Surojo
IEEE
Photovoltaic is widely used as one of the most popular renewable energy sources. Photovoltaic is gaining more attention to be used as sources in the localized network of DC Microgrid especially for rural area. To be used as source, photovoltaics are often merged with other photovoltaics in the same DC Microgrid network. However, merging several photovoltaics attract some issues such voltage magnitude control. Without appropriate method, the generated power by photovoltaics can be circulated among them and potentially loss of power. The suitable voltage control is a control which is able to determine appropriate voltage magnitude of each Photovoltaics according to their power capacities. The performance of the proposed method is evaluated via computer simulation of Matlab Simulink with several numbers of photovoltaics, different capacities and load demands conditions. The voltages and currents profiles of the DC Microgrid network during load demands fluctuations, several numbers of Photovoltaics, and different capacities of photovoltaics are presented, discussed and evaluated. The results indicate that the superiority of the proposed method to maintain the voltage of the DC MG network within acceptable limit during several discussed conditions above.
Made Andik Setiawan, Ocsirendi Ocsirendi, and Zanu Saputra
IEEE
Increasing penetration of renewable energy sources such photovoltaics poses into sources diversification. These sources can act as distributed generation (DG) in the network. Hence the source, short distribution line and loads can be combined and joined as a locally network of Microgrid (MG). As locally network, the network parameters such voltages and currents can be fully designated by the DGs. Without any properly method, the voltage and current in the DC MG can be over the designated limits. On the other hand, the DGs have different current capacities to be generated. To solve these issues, this paper proposes and evaluates the method for both voltage control and current control of the sources (i.e. DGs and central grid) in the DC MG. The performance evaluation is conducted via computer simulation with several conditions and cases such fully supplied by central grid, supplied by DGs (islanded mode) and different cases such equal and unequal DGs capacities. The simulation results indicate that the proposed method is able to maintain the load voltage within acceptable limit during load demands fluctuation. In addition, the generated current by DGs can be also designated according to their capacities by implementation of the proposed method.
Made Andik Setiawan, Yudhi, and Aan Febriansyah
IEEE
Photovoltaic (PV) is one of the most popular renewable energy sources today. Outputs of PVs are fluctuated according to the sunlight intensity. Contrary with the PVs outputs, the Microgrid networks are required continuous power for supplying their load demands. To overcome this issue, the Electrical Energy Storages (ESSs) are introduced in the DC Microgrid network. Introducing PVs and ESSs in the same network poses several issues. The control of the voltages, currents and powers outputs among PVs and ESSs during load demand fluctuations is one of the critical issue which should be considered. On the other hand, The PVs and ESSs have different generated power capacities and hence, the suitable control candidate should be able to adjust the generated power by PVs and ESSs according to their capacities. There are three operational modes options in DC Microgrid based PVs and ESSs. These operational modes are introduced, analyzed, simulated and discussed in this paper. The performance of the proposed method is conducted via computer simulation of Simulink during fluctuations of the load demands. The simulation results indicate that the proposed method is successful to maintain the network voltages are within acceptable limit during load demands fluctuations. And the generated power by PVs and ESSs are regulated within designated capacities as well.
Made Andik Setiawan, Ahmed Abu-Siada, and Farhad Shahnia
Institute of Electrical and Electronics Engineers (IEEE)
Regulating the output voltage of distributed generation units while maintaining proper power sharing among them is a challenging control issue in dc microgrids. This paper presents a new technique to regulate the voltage levels across the dc microgrid loads and achieve proper load current sharing among the distributed generation units without directly regulating their output voltages. To implement the proposed technique, a hybrid communication scheme comprising a centralized scheme for load current sharing and a decentralized scheme for load voltage regulation is proposed. The dynamic performance of the investigated dc microgrid is examined under different operating conditions through extensive digital computer simulation analyses in MATLAB. The simulation results reveal the effectiveness of the proposed technique under different operating and loading conditions including constant impedance, power, and current loads, communication link failure, and plug-and-play feature of the distributed generation units.
Made Andik Setiawan, A. Abu-Siada, and Farhad Shahnia
IEEE
Various configurations can be considered for a dc Microgrid (MG) comprising distributed generation (DGs) units and loads. Renewable energy sources and energy storage systems of plug-and-play nature can change the configuration of the MG at any time. Each configuration has a distinct and unique mathematical representation that influences the operation of the MG. However, the voltage throughout the MG must be regulated within acceptable limit regardless of the configuration, load demand, and the utilized control principle. This paper presents various configurations of dc MGs and analyzes their characteristic with respect to voltage regulation, and circulating currents among DGs. A suitable voltage regulation technique is proposed which can be applied for various MG configurations. A data communication technology required for the employment of the proposed technique is discussed as well. The dynamic performance of various dc MG circuit configurations, operating with the proposed methods, is evaluated through simulation analyses, realized in MATLAB/Simulink®.
Made Andik Setiawan, A. Abu-Siada, and Farhad Shahnia
IEEE
A microgrid (MG) is a cluster of loads and distributed generation units (DG) that are located in a close distance from each other. In a dc MG, the DGs generate a dc voltage and the loads consume power while supplied by a dc voltage. The power sharing amongst DGs is one of the main control issues in dc MGs. Power sharing is conducted in either form of load current or power sharing; however, many of existing techniques assume a single load in the MG. This paper proposes a different technique which can be applied for both current load and power sharing techniques, and in single or multi-loads. The performance of the proposed methods is evaluated through simulation analyses, realized in MATLAB/Simulink®, during various loading demands, DGs capacities and in single or multi loads.
Made A. Setiawan, Farhad Shahnia, Sumedha Rajakaruna, and Arindam Ghosh
Institute of Electrical and Electronics Engineers (IEEE)
A wireless data communication system for future microgrids (MGs) is presented in this paper. It is assumed that each MG has a central controller and each distributed generation unit in the MG has a local controller. The communication system is responsible for transmitting and receiving data amongst these controllers. This communication system is based on ZigBee technology, which is a low cost and low power consumption device. However, its main limitation is the low data transfer rate. To reduce the number of data transactions, a data management scheme is presented in this paper. The required data to be transferred are defined and a suitable coding is proposed. Finally, the number of transmitted symbols and the processing time of the proposed data management scheme are numerically analyzed. In addition, the dynamic operation of an MG is evaluated considering the delays that are imposed by this communication system.
Made Andik Setiawan, Farhad Shahnia, Arindam Ghosh, and Sumedha Rajakaruna
IEEE
To improve the controllability within Future microgrids, a communication network needs to be available to provide data transfer within the MG. Wireless technologies such as ZigBee seem to be a good alternative for data transfer within MGs mainly due to low cost, more flexibility and acceptable data transfer rate. In such networks ZigBee-based repeaters are required to strengthen the communication signals if the DG units are scattered over a vast area. This paper mainly discusses on the algorithms required for defining the shortest distance between the DG units and the MG central controller. Different methods are discussed and a new algorithm is presented. Through the numerical analyses, it is demonstrated that the proposed method leads to a high reduction in the number of repeaters than other conventional algorithms.
Made Andik Setiawan, Farhad Shahnia, Arindam Ghosh, and Sumedha Rajakaruna
IEEE
A data coding is presented in this paper for ZigBee-based wireless data communication system for future microgrids. It is assumed that each microgrid has a central controller and each distributed generation unit in the microgrid has a local controller. The communication system is responsible for transmitting and receiving data amongst these controllers. This communication system is based on ZigBee technology, which has low cost and low power consumption. The required data to be transferred are defined and a suitable coding is also proposed. Finally, the number of transmitted symbols and the processing time delay of the proposed data coding are numerically analyzed.
Made Andik Setiawan, Farhad Shahnia, Ruwan P.S. Chandrasena, and Arindam Ghosh
IEEE
A three-level hierarchical control system is considered for microgrids. The microgrid central controller receives the desired ratio for the output power of the available distributed generation units (DG) from the network tertiary controller. It then passes this information to the primary controller of each DG in the form of setpoints. In addition, the central controller receives some information from the DGs or the network and considers them to adjust the setpoints for the DGs. In this paper, the effect of the data transfer delays in the communication system of future microgrids is investigated on the dynamic operation of the distributed energy resources.