The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Electricity in rural area of Indonesia is mostly in small-scale with diesel generator as the main power source. These diesel generators are mostly in the latter stage of operational age, thus have limited capability and poor performance. Microgrid has been introduced lately, as a system to integrate more renewable energy sources to the existing power system. Photovoltaic (PV) source is one of the...
Hybrid solar / diesel / battery microgrids are being suggested as a solution to rural electrification for many developing countries, even those with existing transmission / distribution networks. One question is how to balance the sizing of the various subsystems. Energy from photovoltaic systems is now far cheaper than even the lowest fuel-only costs for diesel generators. However, solar is only...
The intermittent character of the photovoltaic generator, power electronic converters and load dynamic are the main factors leading operation instability in islanded microgrids. The necessity of the immediate control within the micro-source is very important since it impacts the interaction between micro-sources in the microgrid. This control level must be characterized by a fast and accurate response...
It is of great importance to mitigate frequency fluctuation in power systems with high penetration of renewable energy sources such as wind turbines and photovoltaics. Especially, in isolated microgrids like island power systems, frequency regulation becomes more significant because the system frequency easily changes by relatively small moment of inertia. To cover the small system inertia, it is...
This paper offers a microgrid (MG) system equipped with a classical proportional-integral (PI) control operating in two conditions, i.e., grid-connected and islanding modes. The proposed microgrid mainly consists of hybrid photovoltaic/wind sources, a synchronous generator, a battery storage and a load. The microgrid is able to provide a power factor correction close to unity in the grid-connected...
This paper presents a dynamic droop load sharing scheme based on the available generation capacity of the distributed generation (DG) units. Since conventional droop schemes share loads proportional to units’ ratings, they suffer from the inability to maintain an efficient operating point when their input renewable power varies, without imposing their new operating point on other connected DGs in...
This paper proposes a control strategy for the distributed generation based on isolated system, which consists of diesel generator, photovoltaic (PV)generator and battery. The diesel generator is used being a main energy source, but the photovoltaic generation is chosen as an additional power source due to the growth of the load demand and for establishing an isolated microgrid. The control of microgrid...
This paper proposes strategy to maximize the use of renewable energy on islanded grid. Photovoltaic will be used as main electricity source to supply home load. Lack of electricity will be supplied by picohydro power plant (PHPP). Deficit of electricity supply is utilized as set point reference by a controller implementing model predictive control (MPC) to regulate the flow control valve which feed...
The increasing interconnection of distributed generation sources of diverse technologies to low voltage grids introduces considerable complexity in its operation and control. The concept of the microgrid is emerging as a solution to this and also to take full advantage of the potential offered by distributed generation resources. In this paper the performance study of a roof top wind solar hybrid...
Remote microgrids are a viable option for electrification where the main grid expansion is either impossible or not economical. Typically, remote microgrid consists of diesel generator as a primary source of energy which has a high fuel cost. Renewable energy sources can be used to reduce the fuel consumption with proper coordination and scheduling methods. Storage devices, usually battery, used in...
Diesel generators are the most common source of electricity for remote microgrids. Typically, remote microgrids have load profiles with large peak to average ratios which results in frequent operation of the generators at low loading. Generators are most efficient near rated load and operation at low loading results in poor fuel utilization and increased cost. Photovoltaics (PV) can be added to microgrids...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.