Single Phase Traction Magnetron Project
Product Introduction
Item 1: Project Name: Reconstruction of Railway Dali to Lijiang Line Speed Improvement Project
Product Model: MSVC-27.5-8400kvar(8400FC+6000MCR) 1 set
MSVC-27.5-7000kvar(7000FC+5000MCR) 3 sets
Project Two: Project Name: Chengkun Line Traction Substation Adding Dynamic Reactive Power Compensation Device Project
Product Model: MSVC-27.5-14400kVar(11000MCR+14400FC) 5 sets
MSVC-27.5-9600 kvar (7000MCR+9600FC) 1set
Project background: Electrified railroad as a special power system, its load electric locomotives for the volatility of high-power single-phase rectifier and inverter loads, through the traction power supply system to inject large harmonic currents into the grid, but also cause bus voltage fluctuations and three-phase voltage imbalance and other problems, a serious impact on the quality of the power system. At the same time, electrified railroad is also an important power user of the grid, and its reactive power problem has been very serious. The technical status of electric locomotive and traction substation reactive power compensation device of electrified railroad is directly related to the economic benefits of transportation production.
Electric railway electric locomotive traction load for the volatility of high-power single-phase rectifier load, for the power system power supply has the following characteristics: (1) asymmetry. Negative sequence components in the power supply system. (2) Non-linearity. Generate high harmonics in the power supply system. (3) Fluctuation. Make the power supply system voltage fluctuation. (4) Large power and wide distribution. Serious impact on the power supply system.
Solution: 27.5kV MCR-type dynamic reactive power compensation device is installed in the traction substation. When the electric locomotive enters the range under the jurisdiction of the traction substation, the fixed capacitor bank fully compensates the inductive reactive power of the locomotive, and the capacity of the magnetron reactor is adjusted to the minimum (no-load); when the electric locomotive goes out of the grid under the jurisdiction of the electric locomotive, the capacitor sends the reactive power backward to the system. At this time, the capacity of magnetron reactor is quickly adjusted to the appropriate value to absorb capacitive reactive power; in the process of electric locomotive load change, magnetron reactor quickly tracks and compensates the remaining capacitive reactive power, thus ensuring high power factor. At the same time, the capacitor bank also acts as a 3rd, 5th and higher harmonic filter.
Operation effect: The equipment quickly follows the load changes, ensuring that the real-time power factor is greater than 0.98 and the harmonic content is in accordance with the national standard value.
Craft with exquisite workmanship and innovative leadership
CONTACT
No. 22, Jinchuan Road, Beicheng Sub-district, Huangyan District, Taizhou City, Zhejiang Province
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