CN201556969U - Power supply system - Google Patents

Power supply system Download PDF

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Publication number
CN201556969U
CN201556969U CN2009201340310U CN200920134031U CN201556969U CN 201556969 U CN201556969 U CN 201556969U CN 2009201340310 U CN2009201340310 U CN 2009201340310U CN 200920134031 U CN200920134031 U CN 200920134031U CN 201556969 U CN201556969 U CN 201556969U
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CN
China
Prior art keywords
power
circuit breaker
generating
power supply
load
Prior art date
Application number
CN2009201340310U
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Chinese (zh)
Inventor
卢钢
Original Assignee
深圳市沃尔奔达新能源股份有限公司
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Priority to CN2009201340310U priority Critical patent/CN201556969U/en
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Publication of CN201556969U publication Critical patent/CN201556969U/en

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Abstract

The utility model discloses a power supply system which comprises a commercial power input module, and further comprises a network control module, a first power generation machine set, a first power generation machine set controller, a first circuit breaker and a third circuit breaker, wherein the commercial power input module is connected with a load through the third circuit breaker, the first power generation machine set is connected with the load through the first circuit breaker, the network control module is connected with the third circuit breaker, the first power generation machine set controller is connected with the first circuit breaker, when the power supply system needs continuous power supply, the first power generation machine set controller adjusts voltage, frequency and phases of a first power supply output by a first power generation machine set, thereby enabling the first power supply to control the first circuit breaker to close after being synchronous with the commercial power, when the network control module checks abnormity of the commercial power, the control module controls the third circuit breaker to disconnect, and the power generation machine set is use to provide power for the load. The power supply system can provide continuous power for the load, even when the commercial power generates failures in the power supply process, normal power supply of load end can be guaranteed, and the power supply demands of users in important occasions can be guaranteed.

Description

A kind of electric power system

Technical field

The utility model relates to a kind of electric power system.

Background technology

Electric power system commonly used at present is many to be provided by civil power.But in some important events such as great meeting, important social activity etc., requirement can not have a power failure usually.This requirement can provide a kind of electric power system of not cutting off the power supply.

Summary of the invention

The utility model is exactly in order to overcome above deficiency, to have proposed a kind of electric power system of not cutting off the power supply.

Technical problem of the present utility model is solved by following technical scheme:

A kind of electric power system, comprise the civil power input module, also comprise the control module that is incorporated into the power networks, first generating set, first generator set controller, first circuit breaker, the 3rd circuit breaker, described civil power input module links to each other with load through the 3rd circuit breaker, described first generating set links to each other with load through first circuit breaker, the described control module that is incorporated into the power networks links to each other with the 3rd circuit breaker, and described first generator set controller links to each other with first circuit breaker; When described electric power system need be carried out uninterrupted power supply, described first generator set controller is adjusted first power source voltage, frequency, the phase place of first generating set output, making first power supply and civil power back control synchronously, first breaker closing, is electric by civil power and generating set simultaneously; Then controlling the 3rd circuit breaker and disconnect when the described control module that is incorporated into the power networks detects city's electrical anomaly, is electric by generating set fully, and the power supply of proof load end is normal.

The described control module that is incorporated into the power networks comprises waveforms detection unit, same period unit and adjustment unit, and described waveforms detection unit, the same period, the unit linked to each other respectively with the 3rd circuit breaker, and described adjustment unit is connected between first generating set and the same period unit; Then controlling the 3rd circuit breaker when described waveforms detection unit detects city's electrical anomaly disconnects, described adjustment unit is adjusted first power source voltage, frequency, phase place in the normal again back of civil power, makes first power supply and civil power back notice unit controls the 3rd breaker closing same period synchronously.

Described electric power system also comprises second generating set, second generator set controller and second circuit breaker, described second generating set links to each other with load through second circuit breaker, described second generator set controller links to each other respectively with second circuit breaker, first generator set controller, when the underpower of described first generating set, adjust voltage, frequency, the phase place of the second source of second generating set output after described second generator set controller is communicated by letter with first generator set controller, make the second source and first power supply control second breaker closing in the back synchronously.

Described first generating set and second generating set are diesel generating set.

The beneficial effect that the utility model is compared with the prior art is: the utility model can carry out continual power supply for load, even but in the power supply process civil power proof load end power supply of breaking down also normal, ensured the need for electricity of user in important events.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation of the utility model embodiment 2.

Embodiment

Also in conjunction with the accompanying drawings the utility model is described in further details below by concrete execution mode.

Embodiment 1

As shown in Figure 1, a kind of electric power system, comprise the civil power input module, the control module that is incorporated into the power networks, first generating set, first generator set controller, the first circuit breaker Q F1, the 3rd circuit breaker Q F3, described civil power input module links to each other with load through the 3rd circuit breaker Q F3, described first generating set links to each other with load through the first circuit breaker Q F1, the described control module that is incorporated into the power networks links to each other with the 3rd circuit breaker Q F3, and described first generator set controller links to each other with the first circuit breaker Q F1.When described electric power system need be carried out uninterrupted power supply, described first generator set controller is adjusted first power source voltage, frequency, the phase place of first generating set output, making first power supply and civil power back control synchronously, the first circuit breaker Q F1 closure, is electric by the civil power and first generating set simultaneously.Then controlling the 3rd circuit breaker Q F3 and disconnect when the described control module that is incorporated into the power networks detects city's electrical anomaly, is electric by first generating set fully, and the power supply of proof load end is normal.

First generating set can be diesel generating set as stand-by power supply.First generator set controller is realized being incorporated into the power networks of first generating set and civil power.

First generator set controller is also monitored first generating set and is protected, and guarantees that generating set can normally move.

As shown in Figure 1, the described control module that is incorporated into the power networks comprises waveforms detection unit, same period unit and adjustment unit, and described waveforms detection unit, the same period, the unit linked to each other respectively with the 3rd circuit breaker Q F3, and described adjustment unit is connected between first generating set and the same period unit; Then controlling the 3rd circuit breaker Q F3 when described waveforms detection unit detects city's electrical anomaly disconnects, described adjustment unit is adjusted first power source voltage, frequency, phase place in the normal again back of civil power, makes first power supply and civil power back notice unit controls the 3rd circuit breaker Q F3 closure same period synchronously.

The waveforms detection unit can detect the overvoltage of civil power three-phase voltage, under-voltage and phase shortage, comprises that monitoring city electric vector changes, and guarantees the civil power anomaly is made accurate judgement.

The operation principle of present embodiment is as follows:

The 3rd circuit breaker Q F3 closure is powered to the load by the civil power through the civil power input module under the normal condition.Normal and need uninterrupted power supply (in the time of promptly can not having a power failure), described first generator set controller to adjust first power source voltage, frequency, the phase place of the output of first generating set when civil power, make first power supply and civil power control the first circuit breaker Q F1 closure in the back synchronously.First power supply and the civil power that this moment, first generating set provided is incorporated into the power networks, powers to load simultaneously.Detect civil power as if the control module (specifically being the waveforms detection unit) that is incorporated into the power networks and break down, disconnect the 3rd circuit breaker Q F3 immediately by the control module that is incorporated into the power networks.Can avoid first generating set to the anti-electricity that send of electrical network like this, cause the generating set overload to be shut down, not have a power failure to guarantee important load.After the city power recovery is normal, the control module that is incorporated into the power networks (specifically being adjustment unit) is adjusted first power source voltage, frequency and the phase place that first generating set is exported, when first power source voltage, frequency, phase place, control module (specifically being the unit same period) control the 3rd circuit breaker Q F3 closure is incorporated into the power networks after making first power supply and civil power synchronously.Civil power drops into load again like this, enters civil power and generating uninterrupted power supply state once more.

Embodiment 2

As shown in Figure 2, the difference of present embodiment and embodiment 1 is: described electric power system also comprises second generating set, second generator set controller and the second circuit breaker Q F2.Described second generating set links to each other with load through the second circuit breaker Q F2, and described second generator set controller links to each other respectively with the second circuit breaker Q F2, first generator set controller.When the underpower of described first generating set, adjust voltage, frequency, the phase place of the second source of second generating set output after described second generator set controller is communicated by letter with first generator set controller, make the second source and first power supply control the second circuit breaker Q F2 closure in the back synchronously.Described second generating set can be diesel generating set.

The operation principle of present embodiment is as follows:

The 3rd circuit breaker Q F3 closure is powered to the load by the civil power through the civil power input module under the normal condition.Normal and need uninterrupted power supply (in the time of promptly can not having a power failure), described first generator set controller to adjust first power source voltage, frequency, the phase place of the output of first generating set when civil power, make first power supply and civil power control the first circuit breaker Q F1 closure in the back synchronously.When the underpower of described first generating set, described second generator set controller is communicated by letter with first generator set controller, adjust voltage, frequency, the phase place of the second source of second generating set output, make the second source and the first power supply back control synchronously second circuit breaker Q F2 closure.This moment first generating set and second generating set parallel connection by using.Automatically finish power division by first generator set controller and second generator set controller after parallel operation is finished and guarantee that power division is even between first generating set and second generating set.Like this, second source, civil power three that first power supply that first generating set provides, second generating set provide are incorporated into the power networks, and power to load simultaneously.Detect civil power as if the control module (specifically being the waveforms detection unit) that is incorporated into the power networks and break down, disconnect the 3rd circuit breaker Q F3 immediately by the control module that is incorporated into the power networks.Can avoid first generating set, second generating set to the anti-electricity that send of electrical network like this, cause the generating set overload to be shut down, not have a power failure to guarantee important load.

After the city power recovery is normal, the control module that is incorporated into the power networks (specifically being adjustment unit) is adjusted first power source voltage, frequency and the phase place that first generating set is exported, when first power source voltage, frequency, phase place, control module (specifically being the unit same period) control the 3rd circuit breaker Q F3 closure is incorporated into the power networks after making first power supply and civil power synchronously.Civil power drops into load again like this, enters civil power and generating uninterrupted power supply state once more.

Certainly, also can increase the quantity of generating set and corresponding generator set controller and circuit breaker as required, think more high power load power supply.

Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.

Claims (4)

1. electric power system, comprise the civil power input module, it is characterized in that: also comprise the control module that is incorporated into the power networks, first generating set, first generator set controller, first circuit breaker (QF1), the 3rd circuit breaker (QF3), described civil power input module links to each other with load through the 3rd circuit breaker (QF3), described first generating set links to each other with load through first circuit breaker (QF1), the described control module that is incorporated into the power networks links to each other with the 3rd circuit breaker (QF3), and described first generator set controller links to each other with first circuit breaker (QF1).
2. electric power system according to claim 1, it is characterized in that: the described control module that is incorporated into the power networks comprises waveforms detection unit, same period unit and adjustment unit, described waveforms detection unit, the same period, the unit linked to each other respectively with the 3rd circuit breaker (QF3), and described adjustment unit is connected between first generating set and the same period unit.
3. electric power system according to claim 1 and 2, it is characterized in that: also comprise second generating set, second generator set controller and second circuit breaker (QF2), described second generating set links to each other with load through second circuit breaker (QF2), and described second generator set controller links to each other respectively with second circuit breaker (QF2), first generator set controller.
4. electric power system according to claim 3 is characterized in that: described first generating set and second generating set are diesel generating set.
CN2009201340310U 2009-07-17 2009-07-17 Power supply system CN201556969U (en)

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Application Number Priority Date Filing Date Title
CN2009201340310U CN201556969U (en) 2009-07-17 2009-07-17 Power supply system

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103825303A (en) * 2012-11-16 2014-05-28 Ls产电株式会社 Control device for hybrid electric power system
CN104319821A (en) * 2014-11-13 2015-01-28 郑州众智科技股份有限公司 Parallel and synchronous control system for unit busbars
CN104348183A (en) * 2013-08-05 2015-02-11 广东西电动力科技股份有限公司 Power supplying system with multiple large-power high-voltage diesel generating sets in parallel operation
CN105305479A (en) * 2014-07-07 2016-02-03 卡特彼勒发动机有限及两合公司 Control system and method for generator sets
CN105322567A (en) * 2015-11-13 2016-02-10 安徽四创电子股份有限公司 Grid-connected inversion-based solar-diesel complementary controller and working method thereof
CN105715363A (en) * 2016-03-21 2016-06-29 江苏鲲鹏电力设备有限公司 Fuel-saved and energy-saved diesel generator
CN106230109A (en) * 2016-08-26 2016-12-14 中科合肥微小型燃气轮机研究院有限责任公司 Can the test bench for gas turbine electric power system of uninterrupted power supply

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103825303A (en) * 2012-11-16 2014-05-28 Ls产电株式会社 Control device for hybrid electric power system
CN103825303B (en) * 2012-11-16 2016-02-24 Ls产电株式会社 For the control appliance of hybrid power system
CN104348183A (en) * 2013-08-05 2015-02-11 广东西电动力科技股份有限公司 Power supplying system with multiple large-power high-voltage diesel generating sets in parallel operation
CN105305479A (en) * 2014-07-07 2016-02-03 卡特彼勒发动机有限及两合公司 Control system and method for generator sets
CN105305479B (en) * 2014-07-07 2020-03-27 卡特彼勒发动机有限及两合公司 Control system and method for generator set
CN104319821A (en) * 2014-11-13 2015-01-28 郑州众智科技股份有限公司 Parallel and synchronous control system for unit busbars
CN105322567A (en) * 2015-11-13 2016-02-10 安徽四创电子股份有限公司 Grid-connected inversion-based solar-diesel complementary controller and working method thereof
CN105322567B (en) * 2015-11-13 2017-08-01 安徽四创电子股份有限公司 A kind of light bavin complementary controller and its method of work based on parallel network reverse
CN105715363A (en) * 2016-03-21 2016-06-29 江苏鲲鹏电力设备有限公司 Fuel-saved and energy-saved diesel generator
CN106230109A (en) * 2016-08-26 2016-12-14 中科合肥微小型燃气轮机研究院有限责任公司 Can the test bench for gas turbine electric power system of uninterrupted power supply

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100818

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