Comprehensive operation system for railway operation train set in alpine region
A technology for high-cold regions and operating systems, applied in railway vehicles, motor vehicles, electric vehicles, etc., can solve problems such as reliability and power waste, increased maintenance costs, and pollution of the surrounding environment, reducing temperature gradients, reducing weight and Energy consumption, the effect of ensuring personal safety
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Embodiment 1
[0055] A comprehensive operating system for railway operating trains in alpine regions, such as Figure 4 As shown, it includes a power supply unit, the power supply unit includes a pantograph, a power control device, such as figure 1 As shown, the power control device includes multiple peak clipping networks and transient suppression units, rectification filter clipping network, ultra-large-scale soft switching PWM pulse width modulation circuit, SPWM inverter circuit, single-phase AC850V through multiple peak clipping networks and transient After the high-frequency peak and multiple harmonics are filtered out by the state suppression unit, it enters the rectification, filtering and clipping network to convert the AC power into a DC power. Finally, the DC power is converted to Invert to three-phase AC380 / 220V AC power supply.
[0056] The power supply control device is the core part of the entire power supply unit. Using power electronics technology, through multi-level ligh...
Embodiment 2
[0061] This embodiment is optimized on the basis of Embodiment 1. The multiple peak-shaving network and transient suppression unit are used to eliminate catenary peak interference voltage and multiple harmonics. The catenary power supply has high reliability, but its quality is poor, with severe peaks and harmonics. The multiple peak-shaving network and transient suppression unit preprocess the power supply after catenary step-down, filter out high-frequency peaks, and prevent the inverter unit from being disturbed.
[0062] Such as Figure 5 As shown, the rectification, filtering and clipping network is used to convert AC into DC and further use the filter network to eliminate peak interference voltage. The rectification, filtering and clipping network first rectifies the AC power into DC power, and then passes the unstable DC power through the PWM circuit to finally output DC600V stable DC power.
[0063] The ultra-large-scale high-frequency soft-switching power supply mai...
Embodiment 3
[0109] This embodiment is optimized on the basis of Embodiment 1 or 2, and the power supply unit also includes an isolation transformer device, such as image 3 As shown, the isolation transformer device includes a single-phase step-down isolation transformer, a high-voltage arrester, and a low-voltage arrester; the pantograph is fed by the catenary and then passes through a single-phase step-down isolation transformer to output a single-phase AC850V low voltage; the single-phase The high-voltage side and the low-voltage feeder of the phase step-down isolation transformer are respectively provided with a high-voltage arrester and a low-voltage arrester.
[0110] According to the relevant technical specifications, the high-voltage side of the single-phase step-down isolation transformer is designed according to the 35KV voltage level and presses the lightning protection and energy-saving design. thunder.
[0111] Other parts of this embodiment are the same as those of Embodime...
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