CN201075732Y

CN201075732Y - System for non-intermittence switching commercial power and power generation

Info

Publication number: CN201075732Y
Application number: CNU2007200536160U
Authority: CN
Inventors: 李遵杰
Original assignee: ZHONGSHAN NEW ASIA COPPER INDUSTRY Co Ltd
Current assignee: ZHONGSHAN NEW ASIA COPPER INDUSTRY Co Ltd
Priority date: 2007-07-04
Filing date: 2007-07-04
Publication date: 2008-06-18
Anticipated expiration: 2017-07-04

Abstract

The utility model discloses an uninterrupted switching system between the commercial power and the generated power, which is characterized in that the system includes a programmable controller, a closing/opening device, a commercial power data collection module, a commercial power synchronal data collection module, a commercial power breaker, a generated power data collection module, a generated power synchronal data collection module, a generated power breaker and a voltage-regulating and speed-regulating module. The commercial power breaker is connected with the closing/opening device, the commercial power supply and a load; the commercial power data collection module and the commercial power synchronal data collection module can collect the data of the commercial power and transfer the data of the commercial power to the programmable controller; the generated power breaker is connected with the closing/opening device, the generated power supply and the load; the generated power data collection module and the synchronal data collection module can collect the data of the generated power and transfer the data of the generated power to the programmable controller; the programmable controller can process the collected data and control the on/off of the commercial power breaker or generated power breaker by the closing/opening device to realize the switching between the commercial power and the generated power.

Description

Civil power, generating uninterrupted switching system

[technical field]

The utility model relates to civil power, generating uninterrupted switching system.

[background technology]

Social economy's fast development now causes electric power the long-term phenomenon that supply falls short of demand to occur, forces the electricity consumption of having holidays by turns of avoiding the peak hour.Have a strong impact on like this some enterprises production progress and cause economic loss.Some enterprises begin to generate electricity voluntarily, but can't realize under the present circumstances that generating and civil power switch stably, cause some power consumption equipments impaired or make the production line flow process fluctuation occur like this, the serious production process that makes is interrupted, as weave sack, textile industry, plastics spray silk, textile dragging all can make the spray silk produce at the power fluctuation of moment, causes serious economy loss.Therefore avoiding the peak hour when having holidays by turns electricity consumption, how at civil power with provide the problem that presses for solution that is switching between the generating for oneself.

[utility model content]

The utility model has overcome the deficiency of above-mentioned technology, provide can realize civil power and voluntarily between the generating stably, the uninterrupted system of switching.

For achieving the above object, the utility model has adopted following technical proposal:

Civil power, generating uninterrupted switching system that the utility model is related, it is characterized in that: include Programmable Logic Controller, combined floodgate trip device, civil power electric power data acquisition module, civil power synchronous data collection module, city's electrical circuit breakers, generation power data acquisition module, generating synchronous data collection module, generating circuit breaker, variable voltage control module, described city electrical circuit breakers all is connected with combined floodgate trip device, mains supply, load; The input of described civil power electric power data acquisition module is connected with mains supply, the output of civil power electric power data acquisition module is connected with Programmable Logic Controller, and the data delivery that civil power electric power data acquisition module can be gathered voltage, electric current, active power and the reactive power of civil power arrives Programmable Logic Controller; The input of described civil power synchronous data collection module is connected with mains supply, the output of civil power synchronous data collection module is connected with Programmable Logic Controller, and civil power synchronous data collection module can be gathered the data delivery of frequency, voltage, phase angle, phase sequence of civil power to Programmable Logic Controller; Described generating circuit breaker all is connected with combined floodgate trip device, generating power supply, load, the input of described generation power data acquisition module is connected with the generating power supply, the output of generation power data acquisition module is connected with Programmable Logic Controller, and the data delivery that the generation power data acquisition module can be gathered voltage, electric current, active power and the reactive power of generating arrives Programmable Logic Controller; The input of described generating synchronous data collection module is connected with the generating power supply, the output of generating synchronous data collection module is connected with Programmable Logic Controller, and the synchronous data collection module of generating electricity can be gathered frequency, voltage, the phase angle of civil power, the data delivery of phase sequence arrives Programmable Logic Controller; Described variable voltage control module all is connected with the generating power supply with Programmable Logic Controller, is used for regulating generating power source voltage and frequency; Described Programmable Logic Controller can be handled and controls the ON/OFF of city's electrical circuit breakers or generating circuit breaker by the combined floodgate trip device the data of gathering, and realizes the switching of civil power and generating.

Aforesaid civil power, generating uninterrupted switching system is characterized in that: also be in series with capacitance compensation module, feeder line cabinet between described city electrical circuit breakers and the load; Also be in series with capacitance compensation module, feeder line cabinet between described generating circuit breaker and the load.

The beneficial effects of the utility model are:

1, can realize switching stably between civil power and the generating, avoid some power consumption equipments impaired or make the production line flow process fluctuation occur like this, the serious production process that makes is interrupted, and has improved operating efficiency, has reduced economic loss;

2, international advanced electrotechnics of the system integration in the utility model and components and parts have creatively solved continual stable civil power, the automatic switchover of generator compartment in the download step by step, thereby have made system first and then practical;

3, no-load current switches, thereby prolongs the useful life of circuit breaker;

[description of drawings]

Be described in further detail below in conjunction with accompanying drawing and execution mode of the present utility model:

Fig. 1 is a system configuration schematic diagram of the present utility model;

[embodiment]

As shown in Figure 1, civil power, the generating uninterrupted switching system, include Programmable Logic Controller 1, combined floodgate trip device 2, civil power electric power data acquisition module 3, civil power synchronous data collection module 4, city's electrical circuit breakers 5, generation power data acquisition module 6, generating synchronous data collection module 7, generating circuit breaker 8, variable voltage control module 9, described city electrical circuit breakers 5 and combined floodgate trip device 2, mains supply, load all connects, the input of described civil power electric power data acquisition module 3 is connected with mains supply, the output of civil power electric power data acquisition module 3 is connected with Programmable Logic Controller 1, and civil power electric power data acquisition module 3 can be gathered the voltage of civil power, electric current, active power, and the data delivery of reactive power is to Programmable Logic Controller 1; The input of described civil power synchronous data collection module 4 is connected with mains supply, the output of civil power synchronous data collection module 4 is connected with Programmable Logic Controller 1, and civil power synchronous data collection module 4 can be gathered the data delivery of frequency, voltage, phase angle, phase sequence of civil power to Programmable Logic Controller 1; Described generating circuit breaker 8 all is connected with combined floodgate trip device 2, generating power supply, load, the input of described generation power data acquisition module 6 is connected with the generating power supply, the output of generation power data acquisition module 6 is connected with Programmable Logic Controller 1, and the data delivery that generation power data acquisition module 6 can be gathered voltage, electric current, active power and the reactive power of generating arrives Programmable Logic Controller 1; The input of described generating synchronous data collection module 7 is connected with the generating power supply, the output of generating synchronous data collection module 7 is connected with Programmable Logic Controller 1, and the synchronous data collection module 7 of generating electricity can be gathered frequency, voltage, the phase angle of civil power, the data delivery of phase sequence arrives Programmable Logic Controller 1; Described variable voltage control module 9 all is connected with the generating power supply with Programmable Logic Controller 1, is used for regulating generating power source voltage and frequency; So that its consistent with civil power.Described Programmable Logic Controller 1 can be handled and controls the ON/OFF of city's electrical circuit breakers 5 or generating circuit breaker 8 by combined floodgate trip device 2 data of gathering, and realizes the switching of civil power and generating.

Also be in series with capacitance compensation module 10, feeder line cabinet 11 between described city electrical circuit breakers 5 and the load; Also be in series with capacitance compensation module 10, feeder line cabinet 11 between described generating circuit breaker 8 and the load.

Operation principle of the present utility model is as follows:

According to the time 8:00---22:00 that avoids the peak hour at 10 (civil power 8 power failures in morning, in evening restore electricity)

7:45 start-up system preheating in the morning, synchronous detecting is carried out in preheating after 10 minutes, gather the electric power datas such as voltage, electric current, active power, reactive power, frequency, voltage, phase angle, phase sequence of civil powers by civil power electric power data acquisition module 3, civil power synchronous data collection module 4, gather the electric power datas such as voltage, electric current, active power, reactive power, frequency, voltage, phase angle, phase sequence of civil powers by generation power data acquisition module 6, generating synchronous data collection module 7.1 pair of above-mentioned data of Programmable Logic Controller compare, and control variable voltage control module 9 is regulated generating power source voltage and frequency.

The data of generating power supply output satisfy when being incorporated into the power networks condition, and Programmable Logic Controller 1 sends the order of being incorporated into the power networks, and control combined floodgate trip device 2 closes a floodgate generating circuit breaker 8, and the power supply that will generate electricity is realized being connected with load.

After being incorporated into the power networks, Programmable Logic Controller 1 will generate electricity and the data of civil power compare again, be benchmark with the civil power, regulate generating power source voltage and frequency by variable voltage control module 9, realize that Frequency Synchronization, the voltage of generating power supply and mains supply is synchronous.

Drop to when the mains-supplied electric current below the threshold values (for example 20A) of setting, the Programmable Logic Controller 1 control combined floodgate trip device 2 of giving an order makes city's electrical circuit breakers 5 separating brakes, realizes continual civil power--the switching of-generating.Original the loading on of Programmable Logic Controller 1 control civil power all transferred in 5 minutes on the generating power supply.

--handoff procedure of--handoff procedure of civil power and civil power---generating is the same, so only need the handoff procedure of explanation generating----civil power just passable in generating.

Claims

Civil power, the generating uninterrupted switching system, it is characterized in that: include Programmable Logic Controller (1), combined floodgate trip device (2), civil power electric power data acquisition module (3), civil power synchronous data collection module (4), city's electrical circuit breakers (5), generation power data acquisition module (6), generating synchronous data collection module (7), generating circuit breaker (8), variable voltage control module (9), described city electrical circuit breakers (5) all is connected with combined floodgate trip device (2), mains supply, load; The input of described civil power electric power data acquisition module (3) is connected with mains supply, the output of civil power electric power data acquisition module (3) is connected with Programmable Logic Controller (1), and the data delivery that civil power electric power data acquisition module (3) can be gathered voltage, electric current, active power and the reactive power of civil power arrives Programmable Logic Controller (1); The input of described civil power synchronous data collection module (4) is connected with mains supply, the output of civil power synchronous data collection module (4) is connected with Programmable Logic Controller (1), and civil power synchronous data collection module (4) can be gathered the data delivery of frequency, voltage, phase angle, phase sequence of civil power to Programmable Logic Controller (1); Described generating circuit breaker (8) all is connected with combined floodgate trip device (2), generating power supply, load, the input of described generation power data acquisition module (6) is connected with the generating power supply, the output of generation power data acquisition module (6) is connected with Programmable Logic Controller (1), and the data delivery that generation power data acquisition module (6) can be gathered voltage, electric current, active power and the reactive power of generating arrives Programmable Logic Controller (1); The input of described generating synchronous data collection module (7) is connected with the generating power supply, the output of generating synchronous data collection module (7) is connected with Programmable Logic Controller (1), and the synchronous data collection module of generating electricity (7) can be gathered frequency, voltage, the phase angle of civil power, the data delivery of phase sequence arrives Programmable Logic Controller (1); Described variable voltage control module (9) all is connected with the generating power supply with Programmable Logic Controller (1), is used for regulating generating power source voltage and frequency; The ON/OFF that city's electrical circuit breakers (5) or generating circuit breaker (8) can be handled, also be controlled by combined floodgate trip device (2) to described Programmable Logic Controller (1) to the data of gathering realizes the switching of civil power and generating.
2. civil power according to claim 1, generating uninterrupted switching system is characterized in that: also be in series with capacitance compensation module (10), feeder line cabinet (11) between described city electrical circuit breakers (5) and the load; Also be in series with capacitance compensation module (10), feeder line cabinet (11) between described generating circuit breaker (8) and the load.