Method for quickly and automatically allocating communication IDs to parallel controllers of generator set

Abstract

The invention provides a method for quickly and automatically allocating communication IDs to parallel controllers of a generator set. The method comprises the following steps: 1, when equipment is powered on, entering an ID address allocation state; 2, setting a 64-bit global unique code inside the CPU of each piece of equipment before delivery, and issuing an ID application command to a bus whenthe equipment enters the address allocation state, wherein the ID application command includes a unique code; 3, when all equipment on the bus receives a command including the unique code, enabling the equipment having IDs to transmit respective ID addresses; and 4, enabling the equipment without ID addresses to record used ID addresses, comparing the received unique codes with own unique codes,getting allocation priority if the own codes are preferred to obtain ID allocation, and transmitting own occupied IDs to the bus for confirmation after the preferred equipment obtains the IDs, and notifying other equipment to which IDs are not allocated to enter a next ID allocation cycle.

Description

technical field [0001] The invention relates to a method for automatically and quickly allocating communication IDs by a parallel controller of a generator set, which is applied to the parallel controller of a generator set. Background technique [0002] 1. Due to the advancement of scientific productivity, there are more and more large-capacity electrical equipment, and it is difficult for low-power generator sets to meet production needs. Therefore, it is often necessary to connect multiple generator sets in parallel for power supply. In addition, as the power supply reliability and operating economy In order to meet the performance requirements, it is often necessary to use multiple generators in parallel, so more and more generator sets will be used in parallel. Then when the units are used in parallel, it is necessary to use a parallel controller to control them, and the controllers need to transmit and share data through communication. If the ID setting is incorrect, i...

AI Technical Summary

Problems solved by technology

Although this method solves the possibility of setting the same ID, when there are units running on the bus, it is necessary to add units or repair and replace the parallel controllers, it is possible that the IDs of the newly added units or maintenance and more parallel controller modules are the same as those on the bus There is a conflict in the ID, which will cause the ID conflict alarm of the unit used on the bus, which will cause the unit to stop running and cause a power interruption accident.

[0004] 3. Later, someone invented a method of randomly assigning IDs: such as "A Method for Randomly Assigning IDs by Unit Parallel Controllers" Patent No.: 201610775805.2. ID allocation within a certain period of time, but because there is no arbitration mechanism, when multiple unit controllers are connected to the communication bus at the same time, it cannot quickly allocate IDs, and it may not be possible to obtain allocations after a long time, because IDs are randomly sent, everyone It is possible that the same ID will be issued all the time, and it is difficult to obtain the allocation of ID

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