A monitoring method for intelligent load distribution of dual-channel chargers
A technology of intelligent distribution and charging machine, applied in computer control, arrangement of multiple synchronous batteries, collectors, etc., can solve problems such as inability to perform power distribution, simple distribution strategy, inflexible configuration, etc., to improve output performance and operation Efficiency, increasing user experience satisfaction, and increasing system flexibility
Active Publication Date: 2019-12-10
SHANDONG LUNENG SOFTWARE TECH
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Problems solved by technology
[0003] The current dual-channel charger with free load distribution includes two output circuits, and each output circuit is equipped with the same number of charging modules. Realize independent or parallel output of two circuits, less power combination, inflexible configuration, and power distribution cannot be performed during the charging process, which has large limitations and does not realize free load distribution in the true sense
[0004] The dual-channel charger with free load distribution requires free distribution of power on the two output circuits. However, the current charger has a large power switching step and a simple distribution strategy. It cannot realize real-time switching during the charging process, resulting in low equipment utilization. Low
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[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0028] The invention discloses a monitoring method for intelligent load distribution of dual-way chargers, such as figure 1 and figure 2 shown, including:
[0029] (1) Set user levels in advance for all electric vehicles that need to be charged;
[0030] (2) After receiving the charging request, determine whether there is a charging request conflict; a charging request conflict means that the currently idle modules of the system cannot meet the emerging charging demand.
[0031] If there is a conflict, determine the priority of the charging request according to the set user level, switch the charger module to the bus where the charging request with a higher priority is located, and give priority to satisfying the charging power required by the charging request with a higher priority; at this time, switch The maximum total output current of the charg...
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The invention discloses a monitoring method for intelligent load distribution of a dual-channel charger. The method comprises the following steps of: receiving a charging request, and then judging whether a charging request conflict exists or not; if so, determining the priority level of the charging request according to the set user class; switching charger modules into a bus in which the charging request with a high priority level is located; switching the residual charger modules into the bus in which the charging request with a low priority level is located and enabling the charger modules to output the maximal currents; and after charging is started, determining whether a set number of charger modules are eliminated or not or a new charger module is added or not until charging is ended according to the actually required charging current of the charging request and the quantity of free modules. The monitoring method has the beneficial effects that each charger module can be independently switched into two output loops; the power switching step length is small; the system running state is adjusted in real time according to the charging requirement; current sharing control is constantly carried out; and the output performance and the operating efficiency of a system are improved.
Description
technical field [0001] The invention relates to the technical field of intelligent load distribution of dual-channel chargers, in particular to a monitoring method for intelligent load distribution of dual-channel chargers. Background technique [0002] With the development of the electric vehicle industry, outdoor integrated chargers have become the main DC charging equipment. The market demand for chargers continues to increase, and dual-channel chargers with free load distribution have begun to appear. [0003] The current dual-channel charger with free load distribution includes two output circuits, and each output circuit is equipped with the same number of charging modules. To realize the independent or parallel output of the two circuits, the power combination is less, the configuration is not flexible, and the power distribution cannot be performed during the charging process, which has great limitations and does not realize the true free load distribution. [0004]...
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IPC IPC(8): H02J7/00G05B19/048
CPCG05B19/048H02J7/0014H02J7/0021
Inventor 张光辉孙逢楠刘宁
Owner SHANDONG LUNENG SOFTWARE TECH