CN202218024U - Parallel power distribution economic operation system - Google Patents
Parallel power distribution economic operation system Download PDFInfo
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- CN202218024U CN202218024U CN2011202377042U CN201120237704U CN202218024U CN 202218024 U CN202218024 U CN 202218024U CN 2011202377042 U CN2011202377042 U CN 2011202377042U CN 201120237704 U CN201120237704 U CN 201120237704U CN 202218024 U CN202218024 U CN 202218024U
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Abstract
The utility model relates to a parallel power distribution economic operation system, which overcomes the defects of power shortage or no peak valley of power generation caused by imbalance of power distribution in the prior art. A distribution transformer is connected with a distribution transformer measurement control terminal, an intelligent reactive power compensation terminal, a load control terminal and an electric energy measurement control terminal, the distribution transformer measurement control terminal adopts a 32-bit digital signal processor (DSP), a primary acquisition control system is positioned in the distribution transformer measurement control terminal, a secondary acquisition control system is respectively positioned in the load control terminal and the electric energy measurement control terminal, each secondary acquisition control system comprises a real-time load monitoring and sampling module, and a comparison module and an operation control module are arranged in the distribution transformer measurement control terminal. The electric energy measurement control terminal acquires technical parameters of the distribution transformer and performs communication, after the parameters are received, the intelligent reactive power compensation terminal and the load control terminal perform selection switch on the distribution transformer, and the economic operation function of the distribution transformer is achieved according to power consumption of the distribution transformer and load characteristics of loss rate.
Description
Technical field
The utility model relates to a kind of transformer economic operation device, especially a kind of distribution economical operation arranged side by side system to two or two above transformers between electrical network.
Background technology
Along with China's economic construction constantly develops, the raising day by day of living standards of the people in recent years, the high speed development of township enterprise particularly, the whole society increases sharply to the demand of electric power.Though electric power development speed is very fast, can not satisfy still that people produce, the demand of life, all parts of the country exist serious short of electricity situation, and some township enterprise's rest on daytime is produced evening, even the situation that electrical production does not have peak valley occurred.It is very important that the economical operation of electric power and saves energy have seemed.
Distribution transformer is to transmit in the terminal power distribution network of electric power system, distributes the important electric equipment of electric energy, and quantity that it is total and capacity are all very huge, and transformer self produces in running active power loss and reactive power consumption are considerable.Transformer economic operation is on the basis of guaranteeing transformer safe operation and assurance power supply quality; Choose the transformer economic operation mode according to qualifications and improve technical measures such as transformer service conditions; Reach the impairment consumption reduction, saves energy also prolongs the transformer purpose in useful life.So it is still very big to carry out exploiting potentialities of distribution transformer economical operation.
The loss that one station power distribution transformer himself produces in the process of through-put power is that no-load loss is constant basically when voltage is stablized, and load loss is the quadratic relationship variation with the variation of distribution transformer load.
The good and bad judgement of distribution transformer technical characteristic is the basis of distribution transformer economical operation, and its standard is: under the identical load condition, the little person of loss is excellent, and the big person of loss is bad.When the actual copper loss PK of operating transformer equals iron loss P0, transformer most effective, loss is minimum, and the load efficiency of this moment is called economy load efficient.
Summary of the invention
The utility model has solved shortage of electric power in the prior art; The unbalanced defective that causes short of electricity or electrical production not to have peak valley of distribution; A kind of distribution economical operation arranged side by side system is provided; Power transmission and distribution are optimized selection to electrical network, and the transformer that reasonable distribution puts into operation reaches electric power economical operation and saves energy.
The utility model solves the technical scheme that its technical problem adopted: a kind of distribution economical operation arranged side by side system; Comprise the Liang Tai and the distribution transformer more than two that are in the electrical network; Distribution transformer connects distribution transformer detection and control terminal, intelligent powerless compensation terminal, load control terminal and electric energy measurement control terminal; Wherein, the distribution transformer detection and control terminal adopts 32 bit DSPs as core processor, and distribution economical operation system comprises principal and subordinate's acquisition control system side by side; It is inner that wherein main acquisition control system is in the distribution transformer detection and control terminal; Be in load control terminal and the electric energy measurement control terminal from the acquisition control system branch, comprise real-time load monitoring sampling module from acquisition control system, main acquisition control system connects the input memory module; In real time the monitoring sampling module with import that communication is connected between the memory module, be provided with comparison module and operation control module in the distribution transformer detection and control terminal.The intelligent powerless compensation terminal mainly realizes on the spot that for distribution transformer voltage and idle situation the switching of capacitor group realizes reactive power compensation, and the circuit breaker that control is on-the-spot is controlled the state that distribution transformer puts into operation by circuit breaker; The load control terminal is mainly kept watch on the electric weight of distribution transformer and is realized the electric weight demand control to the user; The electric weight of the main remote monitoring distribution transformer of electric energy measurement control terminal and each user's under the distribution transformer electric weight; The of ac of the main distant place of distribution transformer detection and control terminal measuring transformer is also realized the distant place breaker tripping and closing control to distribution transformer; Main acquisition control system and formed the master-slave mode acquisition control system from acquisition control system; From the main collection site information of acquisition control system; Main acquisition control system is realized the economical operation of distribution transformer according to the various information of sending from acquisition control system and the operating condition of current each station power distribution transformer.Input memory module acknowledge(ment) signal, storage signal are compared signal and the signal stored of accepting by comparison module, according to the result of DSP, send control information by operation control module, realize the economical operation function of distribution transformer.
As preferably, Liang Tai and the distribution transformer more than two adopt wiring group identical, and the no-load voltage ratio between the distribution transformer equates that short-circuit impedance equates.Distribution transformer ideal situation arranged side by side is: (1) does not have circulation in the winding during no-load transformer operation side by side and produces; (2) side by side during the bringing onto load operation two station power distribution transformer institute bringing onto loads be directly proportional with rated capacity separately, promptly load factor is equal.Wiring group is identical, no-load voltage ratio is equal, when guaranteeing no-load transformer, can not produce circulation in the winding, and the long-living reasonable utilization that can influence transformer capacity of circulation if circulation arrives several times rated current greatly, even can burn out transformer.
As preferably, distribution transformer is two, and the Capacity Ratio of this two station power distributions transformer is less than 3:1.Guarantee that sharing of load is directly proportional with capacity, but that the short-circuit voltage of limiting transformer differs is unlikely excessive.
As preferably, entire system adopts modularized design, comprises the opening system module and the expanded type grafting hardware of embedded software, and the entire system communication-type inserts multiple automation equipment, and automation equipment is joined through communication modes and main website in real time.The opening system module can load corresponding module arbitrarily with using according to different equipment, has good flexibility and tailorability; But expanded type grafting hardware can be monitored the capacity flexible configuration, does not need particular design can satisfy user's specific demand; Automation equipment comprises the comprehensive automation device, stand end FTU, TTU, DTU device and kilowatt meter reading-out system.
As preferably, import memory module and comprise communication remote control input and Flash memory module; Communication remote control input comprise with slave station distribution transforming device communication and with the communication of site intelligent switchgear.Communication remote control input makes things convenient for data acquisition and signal transmission, forwards each distribution scene to without the workman and carries out record, reduces labour intensity, and Data Update is fast, and feedback efficiency is high; Flash memory technology, power down can obliterated datas, improve safety in operation.
As preferably, comprise that from acquisition control system the input of 12 road pulsed quantities is gathered and the input of 2 tunnel DC quantity is gathered, the pulsed quantity input is gathered has photoelectric isolating circuit.The input collection of status of support amount.
As preferably, the high side switch of distribution transformer connects the idle contact of native system, is controlled the jumping of this switch by system and closes; Idle contact and circuit breaker intelligent controller that low-pressure side and bus connection switch connect native system communicate.
As preferably, distribution transformer is two, and 5 circuit breakers are joined at the switching scene, and two distribution transformers are parallel with one another, connect a circuit breaker between the parallel connection, and the input of each distribution transformer and output respectively connect a circuit breaker.Three operational modes of two station power distribution transformers and 5 circuit breaker formation economical operation systems drop into single distribution transformer and have two kinds of patterns, and two are dropped into simultaneously is the third pattern.
The beneficial effect of the utility model is: the electric energy measurement control terminal gather the distribution district distribution transformer technical parameter and carry out communication with the distribution transformer detection and control terminal; After the distribution transformer detection and control terminal receives parameter; By intelligent powerless compensation terminal, load control terminal distribution transformer is selected switching, realize distribution transformer economical operation function according to the power loss of distribution transformer and the load characteristic of the proportion of goods damageds.
Description of drawings
Fig. 1 is a kind of principle schematic of the utility model;
Fig. 2 is a kind of distribution transformer winding diagram of the utility model;
Fig. 3 is a kind of structural representation block diagram of the utility model;
Among the figure: 1, distribution transformer detection and control terminal, 2, from acquisition control system, 3, circuit breaker, 4, distribution transformer, 5, the intelligent powerless compensation terminal, 6, the electric energy measurement control terminal, 7, the load control terminal.
Embodiment
Pass through specific embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Embodiment: a kind of distribution economical operation system arranged side by side (referring to accompanying drawing 1); Comprise the two station power distribution transformers 4, distribution transformer detection and control terminal 1, intelligent powerless compensation terminal 5, load control terminal 7 and the electric energy measurement control terminal 6 that are in the electrical network; Whole system comprises principal and subordinate's acquisition control system; It is inner that wherein main acquisition control system is in the distribution transformer detection and control terminal; Be in 2 minutes in load control terminal and the electric energy measurement control terminal from acquisition control system, comprise real-time load monitoring sampling module from acquisition control system, main acquisition control system connects the input memory module; In real time the monitoring sampling module with import that communication is connected between the memory module, be provided with comparison module and operation control module in the distribution transformer detection and control terminal.
The identical wiring group of two station power distribution transformer adopting, the no-load voltage ratio between the distribution transformer, short-circuit impedance equate that the Capacity Ratio of two station power distribution transformers is less than 3:1.
The distribution transformer detection and control terminal adopts 32 bit DSPs-coldfire5272 as core processor (referring to accompanying drawing 3); The input memory module comprises 16M SDRAM, 4Mflash storage, 8 road remote-control communications, 6 road remote-control communications; The input memory module is connected with core processor; Comprise that from acquisition control system the input of 12 road pulsed quantities is gathered and the input of 2 tunnel DC quantity is gathered, the pulsed quantity input is gathered has photoelectric isolating circuit, and two input collections are connected with core processor; Communication remote control input also comprises the DMS communication substation that joins through 1 road Ethernet; Through 2 road serial ports and slave station distribution transforming device communication and with the communication of site intelligent switchgear, core processor is connected with man-machine interface, handled easily and observation and monitoring.
Distribution transformer is two (referring to accompanying drawings 2); 5 circuit breakers 3 are joined at the switching scene, are respectively DL1, DL2, DL3, DL4 and DLM, and two distribution transformers are parallel with one another; Meet a circuit breaker DLM between the parallel connection, the input of each distribution transformer and output respectively connect a circuit breaker.The high side switch of distribution transformer connects the idle contact of native system, is controlled the jumping of this switch by system and closes; Idle contact and circuit breaker intelligent controller that low-pressure side and bus connection switch connect native system communicate.
Entire system adopts modularized design; The opening system module and the expanded type grafting hardware that comprise embedded software; The entire system communication-type inserts multiple automation equipment; Comprise the comprehensive automation device, stand and hold FTU, TTU, DTU device and kilowatt meter reading-out system that system joins through communication modes and main website.
The intelligent powerless compensation terminal mainly realizes on the spot that for distribution transformer voltage and idle situation the switching of capacitor group realizes reactive power compensation, and the circuit breaker that control is on-the-spot is controlled the state that distribution transformer puts into operation by circuit breaker; The load control terminal is mainly kept watch on the electric weight of distribution transformer and is realized the electric weight demand control to the user; The electric weight of the main remote monitoring distribution transformer of electric energy measurement control terminal and each user's under the distribution transformer electric weight; The of ac of the main distant place of distribution transformer detection and control terminal measuring transformer is also realized the distant place breaker tripping and closing control to distribution transformer; Main acquisition control system and formed the master-slave mode acquisition control system from acquisition control system; From the main collection site information of acquisition control system; Main acquisition control system is realized the economical operation of distribution transformer according to the various information of sending from acquisition control system and the operating condition of current each station power distribution transformer.
With the gross power economic operation model is example:
System's initial launch scheme is that DL1 closes, and DL2 closes, and DL3 closes, and DL4 closes, and DLM closes.
Note
is a working capacity.
A, if
, start distribution transformer T1.SetT1S is the capacity of distribution transformer T1 operation.
Then only drop into T1, excision T2.Be operating as and close DL1, DL2 and DLM, jump DL3, DL4.After confirming that this time operated successfully, be transported to piezoelectric transformer economic operation model 1 signal.
B, if
, start distribution transformer T2.SetT2S is the capacity of distribution transformer T2 operation.
Then only drop into T2, excision T1.Be operating as and close DL3, DL4 and DLM, jump DL1 and DL2.After confirming that this time operated successfully, be transported to piezoelectric transformer economic operation model 1 signal.
C, if
, start distribution transformer T1 and distribution transformer T2.
Be operating as: close DL1, DL2, DL3, DL4 and DLM.After confirming that this operates successfully, be transported to piezoelectric transformer economic operation model 3 signals.
Above-described embodiment is a kind of preferred version of the utility model, is not the utility model is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (8)
1. distribution economical operation arranged side by side system; Comprise the Liang Tai and the distribution transformer more than two that are in the electrical network; Distribution transformer connects distribution transformer detection and control terminal, intelligent powerless compensation terminal, load control terminal and electric energy measurement control terminal; It is characterized in that the distribution transformer detection and control terminal adopts 32 bit DSPs as core processor; Distribution economical operation system comprises principal and subordinate's acquisition control system side by side, and it is inner that wherein main acquisition control system is in the distribution transformer detection and control terminal, is in load control terminal and the electric energy measurement control terminal from the acquisition control system branch; Comprise real-time load monitoring sampling module from acquisition control system; Main acquisition control system connects the input memory module, monitors sampling module in real time and imports that communication is connected between the memory module, is provided with comparison module and operation control module in the distribution transformer detection and control terminal.
2. distribution economical operation arranged side by side according to claim 1 system is characterized in that Liang Tai and the distribution transformer more than two adopt wiring group identical, and the no-load voltage ratio between the distribution transformer equates that short-circuit impedance equates.
3. distribution economical operation arranged side by side according to claim 1 and 2 system is characterized in that distribution transformer is two, and the Capacity Ratio of this two station power distributions transformer was less than 3: 1.
4. distribution economical operation arranged side by side according to claim 1 system; It is characterized in that entire system adopts modularized design; Comprise expanded type grafting hardware, the entire system communication-type inserts multiple automation equipment, and automation equipment is joined through communication modes and main website in real time.
5. distribution economical operation arranged side by side according to claim 1 system is characterized in that importing memory module and comprises communication remote control input and Flash memory module; Communication remote control input comprise with slave station distribution transforming device communication and with the communication of site intelligent switchgear.
6. distribution economical operation arranged side by side according to claim 1 system is characterized in that comprising that from acquisition control system the input of 12 road pulsed quantities gathers with 2 tunnel DC quantity input and gather that pulsed quantity input collection has photoelectric isolating circuit.
7. according to claim 1 or 2 or 4 or 5 or 6 described distribution economical operation arranged side by side systems, it is characterized in that the high side switch of distribution transformer connects the idle contact of native system, control the jumping of this switch by system and close; Idle contact and circuit breaker intelligent controller that low-pressure side and bus connection switch connect native system communicate.
8. according to claim 1 or 2 or 4 or 5 or 6 described distribution economical operation arranged side by side systems; It is characterized in that distribution transformer is two; 5 circuit breakers are joined at the switching scene; Two distribution transformers are parallel with one another, connect a circuit breaker between the parallel connection, and the input of each distribution transformer and output respectively connect a circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202377042U CN202218024U (en) | 2011-07-07 | 2011-07-07 | Parallel power distribution economic operation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202377042U CN202218024U (en) | 2011-07-07 | 2011-07-07 | Parallel power distribution economic operation system |
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| CN202218024U true CN202218024U (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202377042U Expired - Fee Related CN202218024U (en) | 2011-07-07 | 2011-07-07 | Parallel power distribution economic operation system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638096A (en) * | 2012-03-21 | 2012-08-15 | 三江学院 | Wireless monitoring system based on General Packet Radio Service (GPRS) for distributing transformer |
| CN103280839A (en) * | 2013-05-30 | 2013-09-04 | 山东计保电气有限公司 | Different-capacitance transformer paralleling alternate operation electricity-saving method and device |
| CN103595077A (en) * | 2013-11-29 | 2014-02-19 | 国网安徽省电力公司淮南供电公司 | Control method for converting split operation state into independent operation state in double-transformer system |
| CN103595055A (en) * | 2013-11-29 | 2014-02-19 | 国网安徽省电力公司淮南供电公司 | Control method for converting independent operation states of two transformers in double-transformer system |
| CN106451420A (en) * | 2016-09-26 | 2017-02-22 | 南方电网科学研究院有限责任公司 | Analysis method for power grid parallel process |
| CN110336278A (en) * | 2019-07-11 | 2019-10-15 | 中铁隧道集团三处有限公司 | Parallel operation of transformers method based on electric current relay |
| CN112751367A (en) * | 2020-12-28 | 2021-05-04 | 国网山东省电力公司枣庄供电公司 | Transformer-based electrical load regulation and control system and use method thereof |
-
2011
- 2011-07-07 CN CN2011202377042U patent/CN202218024U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638096A (en) * | 2012-03-21 | 2012-08-15 | 三江学院 | Wireless monitoring system based on General Packet Radio Service (GPRS) for distributing transformer |
| CN103280839A (en) * | 2013-05-30 | 2013-09-04 | 山东计保电气有限公司 | Different-capacitance transformer paralleling alternate operation electricity-saving method and device |
| CN103280839B (en) * | 2013-05-30 | 2016-05-11 | 山东计保电气有限公司 | Different appearance transformer alternate run power-saving method arranged side by side and device |
| CN103595077A (en) * | 2013-11-29 | 2014-02-19 | 国网安徽省电力公司淮南供电公司 | Control method for converting split operation state into independent operation state in double-transformer system |
| CN103595055A (en) * | 2013-11-29 | 2014-02-19 | 国网安徽省电力公司淮南供电公司 | Control method for converting independent operation states of two transformers in double-transformer system |
| CN103595055B (en) * | 2013-11-29 | 2015-09-30 | 国网安徽省电力公司淮南供电公司 | The control method of two transformer separate unit running state conversions in dual transformer system |
| CN103595077B (en) * | 2013-11-29 | 2015-12-30 | 国网安徽省电力公司淮南供电公司 | In dual transformer system, split operation is to the control method of separate unit running state conversion |
| CN106451420A (en) * | 2016-09-26 | 2017-02-22 | 南方电网科学研究院有限责任公司 | Analysis method for power grid parallel process |
| CN106451420B (en) * | 2016-09-26 | 2018-11-27 | 南方电网科学研究院有限责任公司 | Analysis method for power grid parallel process |
| CN110336278A (en) * | 2019-07-11 | 2019-10-15 | 中铁隧道集团三处有限公司 | Parallel operation of transformers method based on electric current relay |
| CN112751367A (en) * | 2020-12-28 | 2021-05-04 | 国网山东省电力公司枣庄供电公司 | Transformer-based electrical load regulation and control system and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20120707 |