CN103066903B - A kind of generator load self-adaptive regulating - Google Patents
A kind of generator load self-adaptive regulating Download PDFInfo
- Publication number
- CN103066903B CN103066903B CN201210588659.4A CN201210588659A CN103066903B CN 103066903 B CN103066903 B CN 103066903B CN 201210588659 A CN201210588659 A CN 201210588659A CN 103066903 B CN103066903 B CN 103066903B
- Authority
- CN
- China
- Prior art keywords
- generator
- output
- detector
- input unit
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
A kind of generator load self-adaptive regulating disclosed by the invention, comprising: net side power detector, is arranged between utility power grid and external electrical network; Output of a generator detector, is arranged between generator and utility power grid; Analog input unit, connects above-mentioned two detectors, and the detection numerical value of reading is flowed to processor; Processor, connection mode analog quantity input unit, the numerical value input analog input unit and set point compare, and form corresponding control command according to comparative result and flow to digital quantity input unit; Digital output unit, connection handling device, is transmitted to generator load controller by control command; And generator load controller, control the rotating speed of generator according to control command, thus control the power output of generator.This device can enable generator load realize Automatic adjusument thus reach cost-saving object.
Description
Technical field
The present invention relates to power automation control field, particularly relate to generator load self-adaptive regulating in power plant for self-supply.
Background technology
In industrial and mining enterprises such as cement, petrochemical industry, iron and steel, its power consumption is larger, if powered by external electrical network completely, can increase the production cost of enterprise, powers so often set up private station in enterprise, reduces outside to reach cost-saving object.In actual applications, enterprise usually still can be incorporated to external electrical network the same period while setting up private station: when private station can not meet the needs of enterprise's production and operation, by external electrical network supplementary power; When private station energy output exceedes needing of enterprise's production and operation, according to the treaty conditions that each enterprise and power department are signed, the super electricity sent of some regulation must be free, if some forces to separate providing the electrical network of electrical network with power department for oneself after then specifying that the super electricity sent exceedes certain numerical value, no matter being now that a kind of mode, is all disadvantageous to this enterprise.So enterprise can regulate the power output of self-built generating set in real time according to the need for electricity of this enterprise, by increasing or reduce the power output of self-built generating set, reach self-balancing state, with the object reaching the demand that not only meets this business electrical amount but also can be cost-saving further.
At present in the power plant that enterprise is self-built, the control of its generating set power output still adopts manual adjustments mode, next step action is carried out: the power output strengthening generator when energy output is less than actual consumption electricity by the actual consumption electricity of the production and operation of manual record more self-built generating set energy output and enterprise, when still cannot meet the power consumption of this enterprise when power output is adjusted to maximum, insufficient section is provided by outer net; The power output of generator is reduced when energy output is greater than actual consumption electricity.There are some problems in this regulative mode: the labour intensity that first can increase staff, and increase human cost; Secondly, need for electricity due to this enterprise is transient change, rely on operating personnel to regulate completely, adjustment action can be delayed, do not reach the object regulated in real time, and manual adjustments numerical value is not accurate yet, in practical operation, in order to preferentially ensure the needs of enterprise production and management, operating personnel often reduce the energy output of self-supply power plant, absorb certain electricity to ensure operation from external power grid, waste the resource of self-supply power plant like this.
Summary of the invention
The present invention aims to provide a kind of generator load self-adaptive regulating, enables generator load realize Automatic adjusument thus reaches cost-saving object.
A kind of generator load self-adaptive regulating of the present invention, comprising:
Net side power detector, is arranged between utility power grid and external electrical network, for detecting power direction between utility power grid and external electrical network and size;
Output of a generator detector, is arranged between generator and utility power grid, for detecting the power output of generator;
Analog input unit, connection network side power detector and output of a generator detector, read the detection numerical value of net side power detector and output of a generator detector, and the numerical value of detection flowed to processor;
Processor, connection mode analog quantity input unit, the numerical value input analog input unit and set point compare, and form corresponding control command according to comparative result and flow to digital quantity input unit;
Digital output unit, connection handling device, is transmitted to generator load controller by control command;
And generator load controller, control the rotating speed of generator according to control command, thus control the power output of generator.
A kind of generator load self-adaptive regulating of the present invention, set when utility power grid externally mains supply time, the numerical value that net side power detector records just is, when external electrical network is powered to utility power grid, the numerical value that net side power detector records is negative, setting is when generator is powered to utility power grid, and the numerical value that generator power detector records just is.Now, if the numerical value that detects of net side power detector for just and when being greater than set point, processor sends control command, controls generator speed by generator load controller and reduces, to reduce the generated output of motor, to avoid supplying power for outside excessive, cause waste; If the numerical value that net side power detector records is negative, and the numerical value that output of a generator detects is when being less than the maximum power value of generator, processor sends control command, control generator speed by generator load controller to increase, to increase the generated output of motor, to reduce the power supply of external electrical network, save cost.
In order to protective circuit and equipment; connect generator outlet circuit breaker between generator and utility power grid, when serious overload, short circuit, the fault such as under-voltage appear in circuit, generator outlet circuit breaker can disconnect automatically; cut off circuit, thus reach the object of protective circuit and equipment.After generator outlet circuit breaker disconnects, generator to utility power grid conveying electricity, if generator load self-adaptive regulating works on, can not judge that the power output of generator is too small, instruction can be sent and control generator increase power output until maximum power, cause unnecessary waste.Solution is as follows: generator load self-adaptive regulating also comprises digital quantity input unit, digital quantity input unit connects generator outlet circuit breaker and processor, digital quantity input unit reads generator outlet breaker closing state or off-state signal, and by this Signal transmissions to processor, if now processor receives generator outlet breaker closing status signal, generator load self-adaptive regulating normally works, if receive generator outlet circuit breaker cut-off signal, generator load self-adaptive regulating quits work, and has saved cost.
Accompanying drawing explanation
Fig. 1 is a kind of block diagram of generator self-adaptive regulating.
Fig. 2 is a kind of block diagram of generator self-adaptive regulating.
Embodiment
Embodiment one, as Fig. 1
Net side power detector is active power meter, be arranged between utility power grid and external electrical network, for detecting power direction between utility power grid and external electrical network and size, make during installation utility power grid externally electrical network conveying electricity time, its numerical value is just, when external electrical network is to utility power grid conveying electricity, its numerical value is negative; Output of a generator detector is active power meter, is arranged between generator and utility power grid, and for detecting the power output of generator, when generator is to utility power grid conveying electricity, its numerical value is just; Analog input unit, connection network side power detector and output of a generator detector, read the detection numerical value of net side power detector and output of a generator detector, and the numerical value of detection flowed to processor; Processor, connection mode analog quantity input unit, the numerical value input analog input unit and set point compare, and form corresponding control command according to comparative result and flow to digital quantity input unit; Digital output unit, connection handling device, is transmitted to generator load controller by control command; Generator load controller, controls the rotating speed of generator according to control command, thus controls the power output of generator.
If the numerical value that net side power detector detects for just and when being greater than set point, processor sends control command, controls generator speed by generator load controller and reduces, to reduce the generated output of motor; If the numerical value that net side power detector records is negative, and the numerical value that output of a generator detects is when being less than the maximum power value of generator, processor sends control command, controls generator speed increase, to increase the generated output of motor by generator load controller.
Embodiment two, as Fig. 2
Generator load self-adaptive regulating also comprises digital quantity input unit, connection handling device and the generator outlet circuit breaker be arranged between generator and outer net, read the closure state signal of generator outlet circuit breaker or off-state signal and transfer to processor, if now processor receives generator outlet breaker closing status signal, generator load self-adaptive regulating normally works, if receive generator outlet circuit breaker cut-off signal, generator load self-adaptive regulating quits work, cost-saving; Generator load self-adaptive regulating also comprises auxiliary relay, connect digital quantity output unit, be delivered to generator load controller after the control signal exported by digital output unit strengthens, solve and cross weak because of part control signal or decay too much and cause uncontrollable generator load controller to control the problem of generator speed.All the other are identical with embodiment one.
Claims (3)
1. a generator load self-adaptive regulating, is characterized in that, comprising:
Net side power detector, is arranged between utility power grid and external electrical network, for detecting power direction between utility power grid and external electrical network and size;
Output of a generator detector, is arranged between generator and utility power grid, for detecting the power output of generator;
Analog input unit, connection network side power detector and output of a generator detector, read the detection numerical value of net side power detector and output of a generator detector, and the numerical value of detection flowed to processor;
Processor, connection mode analog quantity input unit, the numerical value input analog input unit and set point compare, and form corresponding control command according to comparative result and flow to digital output unit;
Digital output unit, connection handling device, is transmitted to generator load controller by control command;
And generator load controller, control the rotating speed of generator according to control command, thus control the power output of generator;
Digital quantity input unit, connection handling device and the generator outlet circuit breaker be arranged between generator and utility power grid, read the closure state signal of generator outlet circuit breaker or off-state signal and transfer to processor.
2. a kind of generator load self-adaptive regulating according to claim 1, is characterized in that: described generator active power of output detector and net side active power detector are active power meter.
3. a kind of generator load self-adaptive regulating according to claim 1, it is characterized in that: described generator load self-adaptive regulating also comprises auxiliary relay, connect digital quantity output unit, after the control signal exported by digital output unit strengthens, be delivered to generator load controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588659.4A CN103066903B (en) | 2012-12-31 | 2012-12-31 | A kind of generator load self-adaptive regulating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588659.4A CN103066903B (en) | 2012-12-31 | 2012-12-31 | A kind of generator load self-adaptive regulating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103066903A CN103066903A (en) | 2013-04-24 |
| CN103066903B true CN103066903B (en) | 2016-04-20 |
Family
ID=48109394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210588659.4A Active CN103066903B (en) | 2012-12-31 | 2012-12-31 | A kind of generator load self-adaptive regulating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103066903B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103365281A (en) * | 2013-07-22 | 2013-10-23 | 国家电网公司 | Self-adaptation thermal power generation control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2035939U (en) * | 1988-06-27 | 1989-04-12 | 山东工业大学 | Automatic microcomputer controller for generator load |
| CN101647170A (en) * | 2006-11-16 | 2010-02-10 | 康明斯发电Ip公司 | Electricity generation system and method |
| CN202103437U (en) * | 2011-06-13 | 2012-01-04 | 沈如刚 | Anti-inverted power transmission device for photovoltaic power station grid-connected operation |
| CN203119830U (en) * | 2012-12-31 | 2013-08-07 | 广州广重企业集团有限公司 | Generator load self-adaptation adjustment device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128436Y (en) * | 1992-06-18 | 1993-03-17 | 广东省电力工业局试验研究所 | Pulse type automatic generating controller for thermal power plant |
| AUPR418901A0 (en) * | 2001-04-04 | 2001-05-03 | Applidyne Pty Ltd | Control system for cogeneration unit |
-
2012
- 2012-12-31 CN CN201210588659.4A patent/CN103066903B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2035939U (en) * | 1988-06-27 | 1989-04-12 | 山东工业大学 | Automatic microcomputer controller for generator load |
| CN101647170A (en) * | 2006-11-16 | 2010-02-10 | 康明斯发电Ip公司 | Electricity generation system and method |
| CN202103437U (en) * | 2011-06-13 | 2012-01-04 | 沈如刚 | Anti-inverted power transmission device for photovoltaic power station grid-connected operation |
| CN203119830U (en) * | 2012-12-31 | 2013-08-07 | 广州广重企业集团有限公司 | Generator load self-adaptation adjustment device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103066903A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103346587B (en) | Anti-countercurrent grid-connected photovoltaic power generation system | |
| RU2020135633A (en) | INDUSTRIAL RENEWABLE PEAK POWER PLANT, ASSOCIATED SOLAR PANEL AND ENERGY STORAGE | |
| CN104836236A (en) | Distribution panel for stand-alone micro-grid | |
| CN204721273U (en) | A kind of can according to the system of load regulation motor speed | |
| CN203119830U (en) | Generator load self-adaptation adjustment device | |
| CN103066903B (en) | A kind of generator load self-adaptive regulating | |
| CN204761158U (en) | Case of supporting photovoltaic power's electric energy quality on -line monitoring becomes measurement and control device | |
| CN103354361A (en) | Low-voltage three-phase load automation balancing device | |
| CN104269874B (en) | A kind of electric control system | |
| CN205429890U (en) | It goes up switch FTU controller to adapt to net post that joins in marriage that little power supply circuit reclosed | |
| CN104734165A (en) | Reactive power control method for low voltage ride-through of full-power converter of wind generation set | |
| CN202276135U (en) | Comprehensive protection controller for wireless intelligent motor | |
| CN107681687B (en) | Energy storage-based bus overvoltage suppression control method and system for distributed system | |
| CN105048520A (en) | Multi-load balance control system and method | |
| CN201830016U (en) | Automatic voltage regulation device with silicon chain breakage protection | |
| CN205069546U (en) | Under voltage release's controller | |
| Thompson et al. | Wind farm Volt/Var control using a real-time automation controller | |
| CN104701872A (en) | Power control system | |
| CN104682413A (en) | System and method for anti-countercurrent control based on ARM (advanced RISC machine) architecture | |
| CN204669309U (en) | A kind of solar energy photovoltaic direct current power station | |
| CN203720593U (en) | Novel cast rolling machine electrical control system | |
| CN216673598U (en) | Intelligent power supply communication box | |
| CN107591884A (en) | Safety instrumented systems high frequency switch power | |
| CN108321835A (en) | Four-quadrant grid type micro-capacitance sensor upstream controller | |
| CN202333805U (en) | Off-grid load-shedding device in case of power outage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |