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 saving and railway operation cost has not been fully studied. In this paper, based on the typical application scheme of regenerative inverters, the operating characteristics of the inverter including power limitation, start working voltage, and virtual internal resistance are introduced at first. A simplified power system model containing regenerative inverters and trains has been built. The impact of operating characteristics on the amount of regenerative braking energy and its distribution is analyzed. The inverter operating characteristics are optimized by a cost function considering total energy consumption, brake shoes wear, and inverter expense. A case study based on a multiple-train scenario is presented to validate the cost-saving performance. The work is expected to provide some guides for the design and optimization of the traction power supply system with inverting substations.
| Original language | English |
|---|---|
| Article number | 8641314 |
| Pages (from-to) | 3400-3410 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Vehicular Technology |
| Volume | 68 |
| Issue number | 4 |
| Early online date | 13 Feb 2019 |
| DOIs | |
| Publication status | Published - 13 Feb 2019 |
Keywords
- energy consumption
- optimization
- traction power supply system
- inverter
- railway simulation
- cost function
Access to Document
- Gang_Zhang_Inverter_operating_characteristics_optimization_IEEE_Transactions_on_Vehicular_Technology_2019
Checked for eligibility: 22/03/2019 © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. G. Zhang, Z. Tian, P. Tricoli, S. Hillmansen, Y. Wang and Z. Liu, "Inverter Operating Characteristics Optimization for DC Traction Power Supply Systems," in IEEE Transactions on Vehicular Technology. doi: 10.1109/TVT.2019.2899165