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.
Wind/PV/Battery micro-grid hybrid simulation research on operational control is an important link in the development of renewable energy power generation technology. This paper establishes a model of micro power unit control system based on RTDS and a digital physical hybrid simulation model of micro power unit control system based on RTDS and controller, constructs a Wind/PV/Battery micro-grid experimental...
Microgrids (MGs) is developing at an incredible speed in recent years, combined by multiple microgrids, multi-microgrids (MMGs) gradually become a new form of power grids. A stabilized and effective black start strategy for MMGs is in an urgent demand. In this paper, we analyze the topology and control system of the residential type MMGs with three-phase/single-phase (TP/SP) architecture. Then, we...
With the fast proliferation of microgrids (MGs) integrated into the power grid, several nearby MGs with common benefit have been coupled to be multi-microgrids (MMGs), which is a significant stage for developing to the smart grid. A suitable control structure and corresponding control device need to be proposed for the MMGs operating efficiently. However, mostly microgrid (MG) control devices are...
In this paper, an islanded medium-voltage (MV) microgrid placed in Dongao Island is presented, which integrates renewable-energy-based distributed generations (DGs), energy storage system (ESS), and local loads. In an isolated microgrid without connection to the main grid to support the frequency, it is more complex to control and manage. Thus, in order to maintain the frequency stability in multiple...
The paper presents a microgrid energy management strategy (MEMS) for a Medium-Voltage Isolated microgrid, which is China's 10kv island microgrid demonstration project to accommodate the increasing power needs of customers and solve problems of island power supply. When the SOC is restored in security zone, the energy storage system (ESS) would increase the sensitivity and adjust the maximum charging...
According to different operating modes of microgrid, different control strategies for energy storage system are presented. When microgrid parallels in the grid, the bus voltage of microgrid was supported by grid, and the energy storage system serves as the PQ source, using PQ control strategy; When microgrid is off-grid, the energy storage system serves as the main power supply of microgrid, using...
Standard transfer function based design is a kind of simple and practical approach for establishment of the controllers in industrial applications. Based on Binomial Theorem and Hui Yang Triangle, a kind of general multi-capacity inertia(MCI) standard transfer function with the characteristics of non-overshoot and no limit for the system order is proposed. The type of the MCI standard transfer function...
A low cost control system with hierarchy architecture for sequencer is designed in this paper. A touch screen computer is used as master computer to realize Human Machine Interface (HMI). A programmable logic controller (PLC) works as slave computer to receive sequence file and instructions from the master computer. It controls the component arranging, component inspecting, and component taping processes...
The quantization error is directly proportional to the quantization unit value. The quantization unit value depends on the number of digit bits of an A/D converter or a D/A converter. The accuracy performance of a control system is probably affected by the quantization error. For the main steam temperature system in power station, it is suitable to select 12 or 16 bits A/D converters. The quantizer...
The principle of fuzzy control and its application in automatic route tracking of smartcar are presented in the paper. The fuzzy controller is established to control the steering servo motor of the smartcar. Simulation of the designed controller based on MATLAB fuzzy logical toolbox is proposed. And the fuzzy controller is realized using freescale fuzzy inference machine. It is successfully applied...
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.