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When the train is being held, has revert back to grid power supply. The current recovery was the train is at the stage of Pimp, near the ship was kept in use. Through the leverage of this recovery, that can create effective energy savings for metro networks. But, for a line drive, fully automatic, only very close to the ship being held can take advantage of the current recovery. That the voltage of the power supply power cable in the period to keep the ship can only pass the startup voltage of the resistor to keep the ship, due to the Joule effect, the current recovery in the period to keep the ship will be lost.To ensure between the ships can make make the recovery of power, from which the effective implementation of energy saving, must note the following points:-In the course of operating the ship, adjust the available order ship and different ships. Pimp-Try to reduce the resistance of the bar in the grid. Due to green line Train Staff to use the power supply to the power supply Rails, the resistors were smaller than the exposed grid.-Try to reduce the voltage of the power supply grid. But, the voltage reduction benefit for the period kept the ship, but not conducive to accelerated phase.The base is on, at the same time until the characteristics of green line Train (unmanned lines, fully automatic, and use a power supply rail), the tune ship order on hold and speed of the various trains during the drive train to be an ideal solution to save energy , that this low-cost solution, no need to buy additional equipment. Energy-saving efficiency by leveraging the power of revocation of different trains in the period to keep the ship and towed the ship remains relatively sharply. Characteristics of automatic unmanned lines, fully automatic and the distance between the trains is 90 seconds can help the blue line Train sequence optimization implemented Members keep boats and speed of the various trains. L14 online of Paris has applied this method, effective energy savings nearly 15% (peak hours).But from the linear characteristics of the route, when the capacity of larger capacity born dissipates, we will look to have the excess capacity to run about on the distribution grid or not. The excess capacity that runs on can make the voltage of the power supply Rails increased, even exceeding the limit value of the voltage of the resistor's boot kept the ship. In this case, ray power supply does not absorb more electricity, electrical power absorbed during the period of holding the ship will be attrition through resistors between the ships. If you use electricity, you can solve this problem, since it has the effect of stabilizing the voltage power supply Rails, make sure to always remain within the limits of the startup resistor voltage hold the ship. Excess power being stored in a capacitance, then will use when the speeding train. Infrastructure consultant has the green route to Taoyuan is a route of the transport medium, at the same time have counted up to the weight of electricity, so if mounting Super capacitance

When the ship was held, with the power line back in the power supply grid. The current recovery is in phase with advanced vessels, near the train was kept in use. Through the utilization of this recall, can create energy-saving efficiency for metro networks.
But, for a route unmanned, fully automated, only very close to the vessel ship The new hold current can avail this recall. That the voltage of the power supply cables in the period kept the ship can only pass startup voltage of the resistor keep the ship so Joule effect, the current recovery phase will keep the lost ship.
To ensure security between the ship can take advantage of power recovery, thereby implementing efficient energy saving, should note the following:
-In the process of operating the train, adjusted pre-order hold ship and took ship different.
-Try reduce the resistance of the bus bar in the grid. Do green Taoyuan route used to supply power rail power supply, resistor was smaller than the exposed grid.
-Try net reduction of power supply voltage. But, the voltage reduction benefit period kept the ship, but not conducive to accelerated phase.
Based on these reasons, and taking into account the characteristics of Taoyuan green route (route unmanned , fully automated, and used rail power supply), the adjustment of the order on hold and speed boats of different trains in the train drivers is an ideal solution to save energy, but this solution low cost, no need to buy additional equipment. Efficient energy saving advantage because the electricity recovery of different trains in phase holding and towing boats still relatively clear. Characteristics of the route automation unmanned, fully automated, and the distance between trains is 90 seconds can help green Taoyuan route optimization perform sequences hold of the ship and accelerate other trains together. L14 of Paris fashion have adopted this approach, efficient energy saving of nearly 15% (peak hours).
But from the linear characteristics of the route, while the larger capacity power generated attrition, we will consider to have excess capacity running on electricity distribution network or not. Excess capacity running on cso can make power supply rail voltage rises, even exceeding the limit value of voltage startup resistor ship hold. In this case, power supply rails power no longer absorb, absorb electricity in the period kept the ship will be consumed through a resistor between the ship. If using capacitive Express, you can solve this problem, since it has the effect stabilized voltage power supply rails, ensuring always in a limited range of boot voltage resistors hold the ship. Electricity storage in excess capacitive Express, then will use the vessel speed. Infrastructure advisers were considering green route is a route Digging members have average transport volume, and has calculated the weight of super capacitance, so if mounted capacitive super