JPS6315635A - System of control operation period of generating equipment to be uniform - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a control system for equalizing operating times of multiple power generators suitable for power generators in electric propulsion ships.

[Conventional technology]

Conventionally, when operating multiple power generators in an electric propulsion vessel, three types of startup order modes were created using a changeover switch. Fu2 mode: No. 2, No. 3, No. 1 generator, /I63
The startup order is fixed, such as mode = No. 3, No. 1, and No. 2 power generators.

However, if the startup order of the power generation equipment is fixed in this way, the startup order selection changeover switch must be operated uniformly, which requires constant operator supervision and caution in operation. In addition to increasing labor costs, it is difficult to operate and has problems.

[Problem that the invention seeks to solve]

The present invention was proposed in view of these circumstances, and
By starting each power generation device with priority starting from the one with the shortest total operation time threshold, it is possible to reduce unevenness in the total operation time of each power generation device and achieve uniform operation time control, and this control is performed automatically, reducing operating costs. The purpose of the present invention is to provide a control method for equalizing the operation time of a power generation device, which can reduce the amount of noise and ensure reliable operation.

[Means for solving problems]

To this end, the present invention causes the operation time accumulation storage device to count the total operation time for each power generation apparatus based on the operation status signals of the plurality of power generation apparatuses, and uses the operation time order calculation module to count the total operation time for each power generation apparatus based on the total operation time. l The starting order is determined in order of the power generation equipment with the shortest total operating time, and when a power generation equipment start command signal is generated, the power generation equipment with the shortest total operating time that can be started is prioritized.
J [Characteristic is that it is activated next time.

[For production]

With the above-mentioned configuration, it is possible to prioritize the starting of each power generation device in the order of the shortest total operation time, reduce unevenness in the total operation time of each power generation and power device, and achieve uniform operation time control, and the control is automatic. Therefore, it is possible to obtain a control method for equalizing the operation time of a power generation device, which can be carried out in a consistent manner, thereby reducing operating costs and ensuring reliable operation.

〔Example〕

One embodiment of the present invention will be explained using a diagram. FIG. 1 is a system diagram thereof.

In the above diagram, a startup request is issued to a standby power generation device of a power generation plant composed of a large number of power generation devices 2.

The cumulative operating time reset signal 1 sent to the cumulative operating time storage device 3 is used to reset the cumulative operating time of the target power generating device to zero when, for example, a certain power generating device 2 is replaced with a new one or the bearings are replaced with a new one. It is used in It does not need to be provided if it is not necessary.

Each power generation device 2 outputs a signal to the operation time accumulation storage device 3 indicating whether it is in operation, on standby, or stopped. In this case, the operating signal indicates that the two generator engines are at a certain rotation speed or higher, or that the generator circuit breaker is closed.
Or, it can be detected from K that the voltage of the generator is above a certain set value.

In addition, the standby state means that the power generator is in a normal state and ready to start at any time, and that the operation location selector switch, which is separately provided to enable remote automatic startup, has been selected to a position that can be remotely operated. It can be detected by

Furthermore, in the case of a state other than both of these, it can be determined that the power generation device is stopped.

Next, in the operation time accumulation storage device 3, the total operation time of the power generation apparatus group to which the operating signal has been sent among the power generation apparatuses 2 is accumulated in real time, and the latest operation accumulation of each power generation apparatus 2 is added. A signal corresponding to the time is output to the operation time sequence calculation module 4. In the module 4, the standby power generators are arranged in order with the shortest total operating time, and outputted to the startup order arrangement calculation module 5.

Therefore, a signal corresponding to the "arranged order" = "standby order (startup order)" is generated in the module 5, and the start command signal from the start command generation module 6 is sent to the module 5.
In response to the command O from the module 6, the startup command signal 8 is output from the startup command module 7 in order from the power generation device with the first rank in the module 5.

When a change in the operating status of any of the power generators 2 is input to the operating time accumulation storage device 3, it is recalculated in real time within the module 4.5, and the latest standby order is always used in the startup order array calculation module. The modules are calculated and held in step 5, and the modules are activated in the order of 5 → 7 → 8 in response to a signal from the activation command generation module 6, and feedback is provided in the form of a change in the operating state of any of the power generating units 2. Kashi, give this back.

Note that even if a startup command is issued to the target power generation equipment in the order of modules 6 → 5 → 7 → 8, if this fails to start, it is necessary to start the next standby power generation equipment, but the next standby power generation equipment must be started. It is assumed that a signal indicating whether to start the standby power generator is output from module 6 to module 5.

That is, module B is made to include elements of a start-up command for the next standby power generator due to this start-up failure, and also to send 1 start-up command signal 8 to module 6 as a start-up failure signal.

It is preferable that a series of controls in this control system be performed by a program stored in a 74° microcomputer.

〔Effect of the invention〕

In short, according to the present invention, the operation time accumulation storage device for the operation status signal of a plurality of power generation units is made to count the total operation time for each power generation unit, and the operation time original arrangement calculation module is used to calculate the total operation time based on the total operation time. The startup order is determined in order of the power generation equipment with the shortest total operating time, and when a power generation equipment start command signal is generated, the power generation equipment with the shortest total operating time that can be started is started in order, giving priority to the power generation equipment with the shortest total operating time. By giving priority to starting the generator with the shortest operating time, it is possible to reduce the unevenness of the total operating time of each power generator and achieve uniform operating time control, and this control is performed automatically to reduce operating costs and ensure reliable operation. The present invention is industrially extremely useful because it provides a control system for equalizing the operation time of a power generation device that can achieve the following.

[Brief explanation of drawings]

FIG. 1 is a system diagram showing an embodiment of the operating time equalization control method for the power generating apparatus of the present invention. DESCRIPTION OF SYMBOLS 1... Cumulative operation time reset signal, 2... Each power generation device, 3... Operating time accumulation storage device, 4... Operating time order array calculation module, 5... Start item array calculation module, 6... Start command generation module, 7... Start command module, 8... Start command signal.

Claims (1)

[Claims] Based on the operation status signals of the plurality of power generation devices, the operation time accumulation storage device counts the total operation time for each power generation device, and based on the total operation time, the operation time order calculation module calculates the short total operation time. A power generating device operating time equalization control method characterized in that the starting order of the power generating devices is determined in order, and when a power generating device start command signal is generated, the power generating devices with the shortest startable total operating time are started sequentially with priority.