2 edition of application of inverting substations to DC transit systems found in the catalog.
application of inverting substations to DC transit systems
Ziad Saadeddine Mouneimne
Thesis (Ph.D.) - University of Birmingham, Dept of Electronic and Electrical Engineering.
|Statement||Ziad Saadeddine Mouneimne.|
DC-to-DC 95% EFF. DC-to-DC 95% EFF. DC-to-DC 95% EFF. POINT OF LOAD 48V BUS 12V BUS 5V BUS PROCESSOR CORE VOLTAGE W LOSS W LOSS W LOSS WIDER TRACES TO HANDLE INCREASED CURRENT The use of intermediate bus structures and POL regulation offers both flexibility and efficiency as shown in this :// This study focuses on the topic of energy efficiency for railway application. A case study extrapolated from a real system was approached. An entire railway infrastructure, constituted by an alternating current (AC) primary grid, a direct current (DC) railway system and some AC/DC railway electrical substations (ESSs), was observed. The considered system was represented to study the operation
V supply for the special systems like battery systems. V for urban railways like tramways and light metro trains. V for suburban and mainline services like light metros and heavy metro trains. Due to high starting torque and moderate speed control, the DC series motors are extensively employed in the DC traction Suzuki T () DC power-supply system with inverting substations for traction systems using regenerative brakes. IEEE Proc Electr Power Appl (1)–26 CrossRef Google Scholar ://
Y.S. Tzeng, R.-N. Wu, N. ChenElectric network solutions of dc transit systems with inverting substations IEEE Trans Veh Technol, 47 (4) (), pp. Google Scholar rapid transit systems could benefit from the use of inverting substations [2,3] or energy storage devices [4,5]. The first solution, however, implies the modification of all ESS existent on the track. The second solution instead can be actuated without substantial change of the present supply system, because storage
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Abstract: A detailed model of the R-L-fed inverting substation, for use of power flow and harmonic studies in DC electrified transit systems, has been presented in this paper. A unified Newton-Raphson method is adopted as the solution approach of the AC/DC power flows.
The harmonic study is performed by the Y-bus method using the derived harmonic current injections of the :// This paper presents a power electronic devices application focus on modeling, analysis, and control of switching power converter in the inverting DC substation with regenerative braking system which is used to recycle the surplus regenerative power by feed it back to the main AC :// Simulation Study of DC Transit Systems with Inverting Substations.
Transit Systems with Inverting Substations. IEE Proceedings B Electric Power Applications (pp. railway operation Simulation study of DC transit systems with inverting substations.
Article. Apr ; IEE Proc B Elec Power Appl Some more examples of application in Japan are referred to as further Request PDF | OnMahdiyeh Khodaparastan and others published Modeling and Simulation of DC Electric Rail Transit Systems With Wayside Energy Storage | Find, read and cite A detailed model of the R-L-fed inverting substation, for use of power flow and harmonic studies in DC electrified transit systems, has been presented in this :// Reversible DC power-supply systems with thyristor inverters are described.
Design principles applicable to and technical difficulties encountered by the reversible DC power-supply system are discussed. To give an example of application, the power-supply system of Kobe Metro is described in detail, together with principal designs, solutions adopted to overcome the technical difficulties and Abstract: Compared with energy storage equipment based on supercapacitors, flywheels, or lithium batteries, inverters have obvious advantages in installation space, cost, reliability, and service lifetime.
For this reason, regenerative inverters are increasingly installed in the substations of urban rail transit systems. They have controllable operating characteristics, but their impact on the Energy efficiency of a railway line supplied by 3 kv supply system – a case study of the application of an inverter in a traction substation.
Mouneimne Y.S., Goodman C.J., Simulation study of DC transit systems with inverting substations, IEEol. Pt. B, No 2, March  Mierzejewski L., Szeląg A For dc systems, the traction substation core equipment will be the transformers and rectifiers to used to convert the utility supply to dc.
Rectifiers are either 6, 12 or 24 pulse. In addition the dc traction substation will contain circuit breakers to ensure the system is adequately protected and DC TRACTION POWER SYSTEM In a dc traction power system, current from the traction power substations is delivered to the moving trains by either the third rail or the overhead contact system (OCS) and is returned to the substations by the track running › 百度文库 › 互联网.
Request PDF | Inverter Operating Characteristics Optimization for DC Traction Power Supply Systems | Compared with energy storage equipment based on supercapacitors, flywheels or lithium batteries The modeling and simulation of the electrified transit system is an essential element in the design process of a new railway, or an existing one being modernized, particularly in DC powered railway systems which have significant losses in the power network.
With the continuing focus on environmental concerns and rising energy prices, energy-saving operation technology for railway systems has in rail transit systems by simultaneous train running time control This topic is of special importance in DC systems with non-inverting substations.
Here, energy billing is mostly realized at substation level The application of Genetic Algorithms as proposed in section 3 was realized here for two differentcost functions. The results are ‘ The application of an enhanced Brute Force algorithm to minimise energy costs and train delays for differing railway train control systems ’, Mech.
Eng. F, J. Rail Rapid Transit, pp. – (doi: /). IGBT inverters have been increasingly employed in DC traction power supply system . Traction substations with inverters are called inverting substations or reversible substations.
Up to now, the regenerative inverters have been used in more than 20 metro lines in China. The energy saving of Likewise if the negative currents of the inverting substations exceed the maximum inverter DC current, the substation voltage sources are replaced by current sources of the current values of the maximum inverter DC current.
After this the calculation of power flow repeat within Steps 1 and :// Traction substations with IGBT inverters are called inverting substations or reversible substations.
In order to reduce the voltage fluctuation of the DC network and improve the energy efficiency, the conventional diode rectifier is replaced by the controlled rectifiers in , , .
Railway rapid transit systems are key stones for the sustainability of mass transit in developed countries. The overwhelming majority of these railway systems are direct-current (DC) electrified and several energy-saving techniques have been proposed in the literature for these :// The use of controlled rectifiers in the traction substations (TSs) was considered much later.
Thus, the first thyristor controlled rectifier (TCR) was put into service by Dallas Area Rapid Transit (DART) in the early nineties to take advantage of the DC voltage control, fault current limiting and leading to.
Y.S. Tzeng, R.N. Wu, N. ChenElectric network solutions of DC transit systems with inverting substations Vehicular Technology IEEE Transactions, 47 (), pp. Google ScholarOptimal inverter substation planning is solved by minimising the overall cost of power consumption and inverter investment for mass rapid transit power systems with immune algorithm (IA).
The objective function and constraints are expressed as antigens, and all feasible solutions are expressed as antibodies in the IA simulation process. The diversity of antibodies is then enhanced by 2 days ago The first substations were connected to only one power station where the generator was housed, and were subsidiaries of that power station.
Equipment in substation. Substations generally have switching, protection and control equipment and one or more transformers. In a large substation, circuit breakers are used to interrupt any short-circuits /books-and-guides/power-substations.