CN203481825U - Optimized natural gas distribution-type energy main wiring circuit - Google Patents
Optimized natural gas distribution-type energy main wiring circuit Download PDFInfo
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- CN203481825U CN203481825U CN201320615692.1U CN201320615692U CN203481825U CN 203481825 U CN203481825 U CN 203481825U CN 201320615692 U CN201320615692 U CN 201320615692U CN 203481825 U CN203481825 U CN 203481825U
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Abstract
The utility model provides an optimized natural gas distribution-type energy main wiring circuit comprising a plurality of combination circulation units and a plurality of main transformer. Each of the combination circulation units comprises a gas-powered generator, a steam-turbine generator, a circulation unit bus segment, and a reactor. A voltage output end of each of the gas-powered generators is connected with the corresponding main transformer, and a voltage output end of each of the steam-turbine generators is connected with each of the circulation unit bus segments. Each of the circulation unit bus segments is connected with the voltage output end of each of the gas-powered generators by the reactor, and the circulation unit bus segments of two adjacent circulation units of the plurality of circulation units are connected together. The optimized natural gas distribution-type energy main wiring circuit is advantageous in that the gas-powered generator and the steam-turbine generator of each of the combination circulation units can share one main transformer, and the number of the main transformers can be reduced, and therefore the investment can be saved, the layout and the structure are compact, the occupied space is small, and the investment can be saved.
Description
Technical field
The utility model relates to high-tension circuit field, especially relates to a kind of Distribution of Natural formula energy main wiring circuit of optimization.
Background technology
The Distribution of Natural formula energy develops rapidly in the world as a kind of clean resource, but China's natural gas distributed energy is still in the starting stage.The Distribution of Natural formula energy refers to and utilizes natural gas for fuel, by modes such as cold, heat and electricity triple supplies, realize the cascade utilization of the energy, comprehensive energy utilization ratio is more than 70%, and at load center, realizes the modern energy method of supplying of energy supply nearby, is the important way that High-efficiency Gas utilizes.Compare with the centralized energy-provision way of tradition, the Distribution of Natural formula energy has that efficiency is high, clean environment firendly, fail safe are good, peak load shifting, the advantage such as good in economic efficiency.Current domestic distributed energy project is more and more, because distributed energy has himself particularity, can not simply apply mechanically the electricity main wiring design of coal-burning power plant, should design for distributed energy feature, so just can better meet power plant's reliability of operation, flexibility and economy.
Summary of the invention
The purpose of this utility model is: the problem existing for prior art, provides a kind of Distribution of Natural formula energy main wiring circuit that can meet the optimization of power plant's reliability of operation, flexibility and economy.
The purpose of this utility model is achieved through the following technical solutions:
A kind of Distribution of Natural formula energy main wiring circuit of optimization, it is characterized in that, this circuit comprises many group Combined Cycle Unit and a plurality of main transformer, every group of Combined Cycle Unit includes gas electricity generator, turbo generator, Cycle Unit bus section, busbar section and reactor, the voltage output end of gas electricity generator is connected with a main transformer, the voltage output end of turbo generator is connected with Cycle Unit bus section, busbar section, this Cycle Unit bus section, busbar section is connected by reactor with the voltage output end of gas electricity generator, between the Cycle Unit bus section, busbar section of the two adjacent groups Combined Cycle Unit in described many group Combined Cycle Unit, connect.
Preferably, from described gas electricity generator to being connected with enclosed busbar, current transformer and generator circuit breaker main transformer in turn.
Preferably, from described Cycle Unit bus section, busbar section to being connected with circuit breaker, current transformer, reactor summation current transformer gas electricity generator in turn.
Preferably, from described turbo generator, to Cycle Unit bus section, busbar section, be connected with current transformer and circuit breaker in turn.
Preferably, between the Cycle Unit bus section, busbar section of two adjacent groups Combined Cycle Unit, be connected with circuit breaker, current transformer, current transformer and circuit breaker in turn.
Compared with prior art, consider that distributed energy is generally positioned at city, take up an area nervous, and every group of combustion machine, steam turbine generator of the technical program share a main transformer, reduce main transformer quantity, so not only can save investment, also have arrangement compact, take up an area the advantages such as little, reduced investment.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present utility model;
Fig. 2 is the electrical block diagram of power distribution equipment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
embodimenta power distribution equipment 3
As shown in Figure 1 and Figure 2, the Distribution of Natural formula energy main wiring circuit of a kind of optimization of the utility model mainly comprises many group Combined Cycle Unit 1 and a plurality of main transformer 2, a main transformer 2 of every group of Combined Cycle Unit 1 configuration.The group number of Combined Cycle Unit 1 increases and decreases as required, and the present embodiment adopts three groups (I, II, III).Each main transformer 2 can also be connected with a power distribution equipment 3, and power supply is delivered to 220KV main transformer, and the power distribution equipment 3 of the present embodiment can adopt 110kV power distribution equipment.
Every group of Combined Cycle Unit 1 includes gas electricity generator 101, turbo generator 102 and 1 section of Cycle Unit bus section, busbar section 103, and fuel engine power generation machine 101 is through main transformer 2 access 110kV power distribution equipments.Steam turbine generator 102 is connected to Cycle Unit bus section, busbar section 103, through station-service reactor, from corresponding fuel engine power generation machine outlet, draws and connects, and combustion, steam turbine generator are all installed outlet breaker.Specific as follows: because high-voltage Auxiliary electric system adopts 10kV mono-step voltage, thereby the output voltage of the gas electricity generator of the present embodiment and turbo generator is 10.5KV, and corresponding Cycle Unit bus section, busbar section is also 10KV section.Cycle Unit bus section, busbar section 103 adopts single bus scheme.The voltage output end of the gas electricity generator 101 in every cover Combined Cycle Unit is connected with power distribution equipment 3 by a main transformer 2, and from gas electricity generator 101 to being connected with enclosed busbar 104, current transformer 105 and generator circuit breaker 106 main transformer 2 in turn.The voltage output end of turbo generator 102 is connected with Cycle Unit bus section, busbar section 103, and from turbo generator 102 to being connected with current transformer 107 and circuit breaker 108 Cycle Unit bus section, busbar section 103 in turn.For limiting short-circuit current, Cycle Unit bus section, busbar section 103 need draw and connect from corresponding fuel engine power generation machine outlet through station-service reactor, concrete, Cycle Unit bus section, busbar section 103 is to being connected with circuit breaker 109, current transformer 110, reactor 111 summation current transformers 112 in turn between gas electricity generator 101, current transformer 112 is connected between generator circuit breaker 106 and main transformer 2.And every steam turbine generator, unit unit load, public load philosophy are connected to the Cycle Unit bus section, busbar section 103 of corresponding 10kV.
Between the Cycle Unit bus section, busbar section of the two adjacent groups Combined Cycle Unit in many group Combined Cycle Unit, interconnect.Take and adopt three groups as example: between 10kV I section and II section, all establish interconnection switch between 10kV II section and III section, between I, II section and standby each other between II, III section.Interconnection switch is specifically set to: between the Cycle Unit bus section, busbar section of two adjacent groups Combined Cycle Unit, be connected with circuit breaker 113, current transformer 114, current transformer 115 and circuit breaker 116 in turn.Every section of 10kV bus section, busbar section independent operating under normal circumstances, the interconnection switch that closes when its electric power loop maintenance or fault, is moved by 2 sections of bus loads of other 1 section of 10kV bus section, busbar section band.
110kV power distribution equipment adopts the wiring that can adopt any requirement of engineering.The present embodiment has only adopted double bus scheme mode as example, and it draws and connects 2 and return back out Xian Zhi 220kV transformer station.110kV power distribution equipment adopts the gas-insulating and fully-enclosed power distribution equipment of indoor GIS(), have 8 intervals: 2 outgoing line intervals; 3 main transformer inlet wire intervals; 1 mother interval and 2 bus equipment intervals.2 outgoing line intervals 302 connect 220KV main transformer.In 1 mother interval, be provided with two buses 301.Because the concrete connecting circuit of double bus scheme mode and power distribution equipment is that those skilled in the art can be known according to industry standard, in this programme, be just not described in detail.
In addition, Distribution of Natural formula energy General Requirements participates in peak load regulation network, and generator outlet generally need be installed generator circuit breaker, and the frequent start and stop of unit are higher to circuit breaker performance requirement.Fuel engine power generation machine producer can supportingly provide generator outlet circuit breaker, but is generally imported circuit breaker, expensive.Consider economy, this programme adopts generator outlet definite purpose circuit breaker.Special circuit breaker for a generator has SF6 circuit breaker and two kinds of forms of vacuum circuit-breaker, considers operation maintenance conveniently and economy, and this main electrical scheme adopts vacuum circuit-breaker form.Fuel engine power generation machine is because capacity is larger, and outlet short-circuit current level is high, and conventional vacuum circuit-breaker can not meet connecting-disconnecting function, cut-offs DC component, the isoparametric requirement of transient recovery voltage, therefore select generator vacuum circuit breaker special; Steam turbine generator, because capacity is little, short-circuit current level is less demanding, therefore select conventional vacuum circuit-breaker, is saved investment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all any modifications of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. the Distribution of Natural formula energy main wiring circuit of an optimization, it is characterized in that, this circuit comprises many group Combined Cycle Unit and a plurality of main transformer, every group of Combined Cycle Unit includes gas electricity generator, turbo generator, Cycle Unit bus section, busbar section and reactor, the voltage output end of gas electricity generator is connected with a main transformer, the voltage output end of turbo generator is connected with Cycle Unit bus section, busbar section, this Cycle Unit bus section, busbar section is connected by reactor with the voltage output end of gas electricity generator, between the Cycle Unit bus section, busbar section of the two adjacent groups Combined Cycle Unit in described many group Combined Cycle Unit, connect.
2. the Distribution of Natural formula energy main wiring circuit of a kind of optimization according to claim 1, is characterized in that, from described gas electricity generator to being connected with enclosed busbar, current transformer and generator circuit breaker main transformer in turn.
3. the Distribution of Natural formula energy main wiring circuit of a kind of optimization according to claim 1, is characterized in that, from described Cycle Unit bus section, busbar section to being connected with circuit breaker, current transformer, reactor summation current transformer gas electricity generator in turn.
4. the Distribution of Natural formula energy main wiring circuit of a kind of optimization according to claim 1, is characterized in that, from described turbo generator, to Cycle Unit bus section, busbar section, is connected with current transformer and circuit breaker in turn.
5. the Distribution of Natural formula energy main wiring circuit of a kind of optimization claimed in claim 1, is characterized in that, between the Cycle Unit bus section, busbar section of two adjacent groups Combined Cycle Unit, is connected with circuit breaker, current transformer, current transformer and circuit breaker in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615692.1U CN203481825U (en) | 2013-09-30 | 2013-09-30 | Optimized natural gas distribution-type energy main wiring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615692.1U CN203481825U (en) | 2013-09-30 | 2013-09-30 | Optimized natural gas distribution-type energy main wiring circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203481825U true CN203481825U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320615692.1U Expired - Lifetime CN203481825U (en) | 2013-09-30 | 2013-09-30 | Optimized natural gas distribution-type energy main wiring circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203481825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684927A (en) * | 2017-03-30 | 2017-05-17 | 山东中实易通集团有限公司 | Grid-connected system for large generator sets in isolated grid system and grid-connected method |
| CN108494086A (en) * | 2018-04-18 | 2018-09-04 | 国电建投内蒙古能源有限公司 | Service power voltage hierarchical selection method, equipment and medium |
-
2013
- 2013-09-30 CN CN201320615692.1U patent/CN203481825U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684927A (en) * | 2017-03-30 | 2017-05-17 | 山东中实易通集团有限公司 | Grid-connected system for large generator sets in isolated grid system and grid-connected method |
| CN108494086A (en) * | 2018-04-18 | 2018-09-04 | 国电建投内蒙古能源有限公司 | Service power voltage hierarchical selection method, equipment and medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP SOUTHWEST Free format text: FORMER NAME: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee after: Southwest Electric Power Design Institute CO., Ltd. of China Power Engineering Consulting Group Address before: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee before: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |