Self-protection system and method of vehicle generator set based on temperature early warning

Abstract

The invention discloses a self-protection system of a railway vehicle generator set based on temperature early warning. The system comprises a diesel generator set module, a cooling module, a controlmodule and a power supply and distribution module, wherein the diesel generator set module comprises a plurality of groups of diesel engines and generators operating in parallel ; the power supply anddistribution module comprises a low-voltage storage battery; the cooling module comprises a radiator set, a water collecting pipe and a cooling fan and is connected to water inlet and outlet pipes ofa diesel engine to form a water circulation system; the control module comprises diesel engine operation data acquisition and processing, power supply and distribution module data acquisition and processing and cooling fan data acquisition and processing; the control module can calculate load power according to the collected data to adjust the operating speed of the generator set automatically and monitor the operating state of the generator set; and the control module protects the power supply and distribution module after analysis and processing according to acquired data information and has overload, voltage-losing, overvoltage and short circuit protection functions. A signal to self protection of the generator set by an abnormal signal is avoided, the self-protection system of the generator set is perfected and normal operation of the generator set is ensured.

Description

technical field [0001] The invention belongs to the field of vehicle power generation, and in particular relates to a self-protection system and method of a vehicle generator set based on temperature warning. Background technique [0002] The vehicle generator is the main power source of the vehicle. Its function is to supply power to all electrical equipment and charge the battery at the same time when the engine is running normally; however, the generator generates a large amount of heat during the power generation process. , will lead to a decrease in the generating capacity of the generator set, or even damage the generator set. [0003] During the power generation process of the vehicle, a lot of heat will be generated. When the temperature of the generator set is too high, the generator set will be damaged, resulting in the failure of the generator set to work normally, and affecting the power system of the entire vehicle; the existing generator set protection systems ...

AI Technical Summary

Problems solved by technology

[0002] The vehicle generator is the main power source of the vehicle. Its function is to supply power to all electrical equipment and charge the battery at the same time when the engine is running normally; however, the generator generates a large amount of heat during the power generation process. , will lead to a decrease in the generating capacity of the generator set, or even damage the generator set

[0003] During the power generation process of the vehicle, a lot of heat will be generated. When the temperature of the generator set is too high, the generator set will be damaged, resulting in the failure of the generator set to work normally, and affecting the power system of the entire vehicle; the existing generator set protection systems are almost all based on power generation. The mechanical properties of the unit, such as bearing bush temperature, motor speed and other physical quantities to judge failures, have a high failure rate, abnormal failures or shutdown signals, which seriously affect the normal operation of the locomotive; the failure is not easy to find, the maintenance workload is large, and the number of operators is increased. Labor intensity; traditional generators generally use passive exhaust cooling, hot air circulates in the silent box, resulting in excessive temperature in the box, and at the same time, there are dead angles and side leakage when the air is supplied, and the cooling is not complete

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