CN105141156A - Control method for DC bus voltage of two-stage inverter - Google Patents
Control method for DC bus voltage of two-stage inverter Download PDFInfo
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Abstract
The invention proposes a control method for a DC bus voltage of a two-stage inverter. A DC/AC inverter unit adopts a voltage outer ring to stabilize the DC bus voltage; an AC grid-connection current inner ring is used for achieving unity power factor running of a grid-connected current; a DC/DC unit adopts the voltage outer ring to achieve maximum power tracing; the current inner ring is used for achieving rapid and stabile running of a DC-side current; a DC bus voltage control strategy is added on the basis; in DC/DC, the output ability of a front stage is dynamically adjusted by the DC bus voltage control strategy; when the DC sub voltage is pulled down, the output ability of the front stage is enhanced by the DC bus voltage control strategy, and the DC bus voltage is increased; and when the DC bus voltage is pulled up, the output ability of the front stage is reduced by the DC bus voltage control strategy, and the DC bus voltage is reduced. Therefore, the stable running of the DC bus voltage is achieved by the DC bus voltage control strategy.
Description
Technical field
The present invention relates to a kind of control method of two-stage type inverter, relate to a kind of control method of DC bus-bar voltage particularly.
Background technology
China is a production of energy big country and consumption big country, has abundant fossil energy resource.2006, coal reserves was 10,345 hundred million tons, verified residual recoverable reserves and accounted for global 13%, row third place in the world.But per capita energy's resource owning amount of China is lower, and coal and hydropower resources per capita owning amount are only equivalent to 50% of world average level, oil, natural gas per capita resources owning amount are only about 1/15 of world average level.Energy resources tax is deposited unbalanced, and development difficulty is comparatively large, the high-grade energy such as verified oil, natural gas reserves wretched insufficiency.Add energy utilization technology to fall behind, utilize low, under the condition of economy rapid growth, the depletion rate of China's energy is faster than other countries, and the threat of lack of energy may come more early, more serious.Thus, the Pressure on Energy that growing external energy demand causes forces us to have to find the road of the breakthrough solving energy crisis.
China is that a few take coal as the country of main energy sources in the world, disposable production of energy and consumption about 65% are coal, a large amount of use coal, makes the Chinese city Atmospheric Grains content of 66% and the urban air content of sulfur dioxide of 22% exceed national air quality secondary standard.This energy resource structure based on coal and single energy-consuming pattern bring serious environmental pollution for a long time.Along with the fast development of economy and the sustainable growth of demand for energy, the greenhouse gas emission that combustion of fossil fuel produces causes more and more heavier pressure to environment.In the face of the severe environments crisis that current fossil energy consumption brings, readjust the energy structure extremely urgent.
Regenerative resource is can the energy of continuous utilization, as water can (small power station), wind energy, solar energy, biomass energy and oceanic energy etc., there is not resource exhaustion problem.At present, regenerative resource is all tried hard to recommend in countries in the world, and China more should grasp the era trend of Renewable Energy Development, strives for taking its place in the front ranks of the world on regenerative resource develops, and alleviates the energy crisis and ambient pressure that day by day increase the weight of.
China's regenerative resource great variety of goods, quantity is many, and resource base is rich.The exploitable deposit of China's small-sized water power hydraulic power potentials of 50,000 kilowatts (refer to≤) is 1.2 hundred million kilowatts, only develops less than 1/4 at present; The solar radiant energy that land, the whole nation receives every year is equivalent to 24,000 hundred million tons of standard coals, if by land surface 1%, average conversion efficiency is by 20%, within 1 year, available energy reaches 4,800,000,000 tons of standard coals, be equivalent to 2006 national primary energy consumption figure (24.6 hundred million tons of standard coals) twice; The wind energy gross reserves of China 10m height layer is 3,200,000,000 kilowatts, and reality can be developed as 2.53 hundred million kilowatts, adds coastal waters (1 ~ 15 meter of depth of water) wind resource, installed capacity can reach 1,000,000,000 kilowatts; Biomass Energy Resources is also very abundant, and the agricultural wastes such as stalk about have 3.0 hundred million tons of standard coals every year, and fuel wood resource is 1.3 hundred million tons of standard coals, adds organic garbage of city etc., the nearly 700,000,000 tons of standard coals of total resources.By breed improvement and expansion plantation, the stock number of biological energy source can be doubled in this level again.In addition, also have geothermal energy and oceanic energy etc., can utilize for extensive long period of development.In a word, Chinese Renewable Energy Resources enriches, and has resources supplIes and the Technology Potential of large-scale development, can provide the enough energy for future society and economic development, develops regenerative resource and is well worth doing.
China's regenerative resource has huge potential market, along with the propelling with off construction that further develops of China's economy, will propose new requirement to energy supply.Simultaneously, China is again a large agricultural country, the population lives of 61% is in rural area, rural energy utilance is in reduced levels, the energy of standard coal more than 600,000,000 will be consumed every year, wherein the energy of half is by crop material and acquisition of falling trees, and this makes biological environment be destroyed, and desertification degree aggravates.As the important supplement of rural energy supply, utilize regenerative resource for rural area provides gaseous fuel, provides domestic hot-water, plays a significant role without aspects such as electric problems for peasant household from far-off regions solves, directly improve life of farmers quality and improve rural environment quality.The utilization of regenerative resource is rural energy and harmonious development important channel.So active demand is objectively that regenerative resource provides huge market.
Most of regenerative resource is all connected to electrical network, and the source of the energy exists mainly with galvanic form greatly.Solar-energy photo-voltaic cell can provide direct voltage, middle-size and small-size wind-driven generator can output AC electricity, these alternating currents are convertible into direct current subsequently.Inverters, can be converted to AC energy by direct current energy.The control objectives of DC terminal captures maximum energy, and be transferred in utility network.The AC energy produced, the electric energy at inverter and utility network tie point place in necessary energy compatible with alternating utility network.
The denominator of inverter has a kind of specific algorithm, can increase the electric energy extracted from regenerative resource to greatest extent.In solar energy photovoltaic system, this typically refers to MPPT maximum power point tracking (MPPT) technology.Wind turbine generator seeks the maximization of energy capture too, but this needs to force turbine could realize with maximum pneumatic efficiency work usually.In theory, this is a kind of MPPT technology, but it relates to is not merely combining inverter.
One of feature of distributed power generation is exactly that the DC voltage fluctuation produced is large, voltage is low.This will ask inverter in this case, can outputting high quality be suitable for grid-connected alternating current.DC side fluctuate large in, the control mode that two-stage type inverter coordinates adaptive technique and intellectual technology to combine, can in efficiency, high and cost be low is under the target of the continuous pursuit of combining inverter research, increase the direct voltage input range allowed, and do not affect the quality of output AC electricity, farthest electric energy is input to electrical network.
The stability contorting of busbar voltage is that two-stage type inverter is long-term, the prerequisite of stable operation, and in real process, two-stage type inverter prime completes DC/DC function, and the voltage loop of the main MPPT of employing technology and current loop form double-closed-loop control prime and stablize; DC/AC function is mainly completed in rear class, in two-stage type combining inverter, main employing DC bus-bar voltage loop and grid-connected output current loop form double-closed-loop control rear class and stablize, for front stage loop cooperation control, as document " the single-phase photovoltaic grid-connected control strategy based on power feedforward ", author Jiang Shigong, Wang Wei, Wang Panbao, Liu Guihua, it has carried out labor to traditional double-loop control mode (outer voltage, current inner loop), proposes a kind of Novel photovoltaic grid-connected inverter control algolithm based on input power feedforward link on this basis.Photovoltaic panel power output is joined current inner loop as feedforward amount by this algorithm, makes electric current loop given containing input power information.By analyzing, this algorithm effectively can improve response speed when traditional control method output current changes to input power, makes the dynamic response performance of system more superior.
But when intelligent grid tunable generates electricity, rear class power stage will by selected by power grid user, under rear class is in restriction output condition situation, above-mentioned power feedforward thought is adopted cannot directly to realize busbar voltage stability contorting, therefore, in this case, document is had to adopt prime dynamic adjustments, inverter busbar voltage stability contorting is realized again by power feedforward, adopt said method, independently DC/DC loop and DC/AC loop is equivalent to adopt a larger loop to control to realize the stability of a system, adopt said method practical in theory, also control effects can be obtained in practical operation, but system adds the outer shroud of a DC/DC loop and DC/AC loop, make control system that very large change occur, in actual debug process, difficulty increases.
To sum up, how efficiently to control two-stage type inverter DC bus-bar voltage to control to seem particularly important, only has the stability contorting of busbar voltage, two-stage type inverter could be realized long-term, stable operation, from current control method, be divided into feedforward or feedback, both equal existing defects in the actual inverter course of work, and adopt global loop control strategy, DC bus-bar voltage stability contorting can be realized very well, but in real process, increase the outer shroud of a DC/DC loop and DC/AC loop, relative to " three rings " control circui, practical operation difficulty is larger, the stability of a system is not easily assessed, in the extreme circumstances, adopt " three rings " control circui, even the problems such as systematic jitters can be brought.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art and problem, provide a kind of control system and control method thereof of two-stage type inverter DC bus-bar voltage.
Technical scheme of the present invention is as follows:
A control method for two-stage type inverter DC bus-bar voltage, described two-stage type inverter comprises DC/DC, DC/AC, it is characterized in that, described method comprises the steps:
Step 1: the numerical value being obtained DC voltage, electric current and DC bus-bar voltage by detecting unit;
Step 2: adopt MPPT to control to control the outer voltage of described DC/DC according to the numerical value that step 1 obtains;
Step 3: according to current reference value and the given Systematical control of electric current actual sample value of described outer voltage;
Step 4: according to DC bus-bar voltage and DC bus-bar voltage reference value, dynamic adjustments current reference value.
Preferably, the detecting unit in above-mentioned steps 1 is used for DC voltage, DC side electric current and DC bus-bar voltage.
Preferably, the numerical value that the control strategy of the MPPT in above-mentioned steps 2 can obtain according to step 1 adjusts MPPT control strategy.
Preferably, above-mentioned steps 3 is according to the current reference value of described outer voltage and the given Systematical control of electric current actual sample value.
Preferably, the DC bus-bar voltage reference value setting of above-mentioned steps 4, by DC bus-bar voltage ring, realizes current-order regulated quantity and combines with the current-order that MPPT instruction controls, dynamic adjustments DC reference value.
General principle of the present invention is: by the original control unit of system, calculate current required controlled quentity controlled variable, in digital signal processor (DSP), according to control situation, complete corresponding control strategy, DC bus-bar voltage control loop is added in DC/DC side, make inverter system at running, no matter be that backing system or rear level system change, system all can regulate, realize two-stage inverter front stage and be connected link DC bus-bar voltage stability contorting, after completing corresponding control, by PWM mechanism corresponding in digital signal processor (DSP), realize DC bus-bar voltage stability contorting.
Beneficial effect
A kind of two-stage type inverter of the present invention DC bus-bar voltage stabilizing control system, by to original DC/DC side outer voltage, the basis of current inner loop superposes DC bus-bar voltage stability contorting loop, adopt this thought will retain original control algolithm thought to greatest extent, this algorithm function module is facilitated to be transplanted to other parametric controller, owing to have employed DC bus-bar voltage Stable Control Strategy, that is backing system and rear level system all have employed DC bus-bar voltage Stable Control Strategy, no matter that prime or rear class are when changing, system all can realize DC bus-bar voltage and control, the present invention achieves DC bus-bar voltage stability contorting at utmost retaining on original algorithm basis, be coupled owing to not adopting DC/DC and DC/AC control loop, simplified control system difficulty.
Accompanying drawing explanation
Fig. 1 is two-stage type inverter DC/DC control block diagram.
Fig. 2 is two-stage type inverter DC/AC control block diagram.
Fig. 3 is adopted DC/DC control block diagram by two-stage type inverter DC bus-bar voltage stabilizing control system.
Fig. 4 is not for adopt two-stage type inverter DC bus-bar voltage stabilizing control system DC bus-bar voltage waveform.
Fig. 5 is for adopting two-stage type inverter DC bus-bar voltage stabilizing control system DC bus-bar voltage waveform.
Embodiment
Below in conjunction with the accompanying drawing of the embodiment of the present invention, check the technical scheme of the embodiment of the present invention, intactly describe, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In order to better, the technical scheme of this example is described, first summary photovoltaic DC-to-AC converter is once described.
The control structure figure of inverter electricity generation system, the function realized by it is different, and control structure is also divided into two large divisions: DC/DC circuit and DC/AC circuit; For the outer voltage major control output voltage of DC/DC circuit, realize broad sense MPPT; For DC/AC, comprise two loops, outer voltage is used for stable DC busbar voltage, exchanges grid-connected, and the unity power factor that current inner loop realizes grid-connected current runs.
DC/AC inversion unit is the core of combining inverter, its operation principle: send pwm switching signal according to control loop and control turning on and off of full bridge power device, realize high voltage direct current being reverse into and the single-phase alternating current of line voltage with frequency, homophase, and it is steadily connected to the grid, its outer voltage stable DC busbar voltage, exchanges the unity power factor operation that grid-connected current inner ring realizes grid-connected current.
To change or input power changes in situation at real output, stablize for maintaining DC bus-bar voltage, only have and carry out stable DC busbar voltage by the outer voltage of DC/AC inversion unit, when DC/DC and DC/AC rapidity and stability inharmonious time, inverter unit will maintain system stability to sacrifice DC bus-bar voltage stability, in this process, DC bus-bar voltage is dragged down or is elevated, no matter drag down or raise, two-stage type inverter cannot for a long time, stable operation.
By description above, below in conjunction with the control method of the detailed description of accompanying drawing (omit and have nothing to do with the technical program) a kind of two-stage type inverter DC bus-bar voltage,
As shown in Figure 1, be PV outer voltage, PV current inner loop control block diagram, PV Voltage Reference in PV outer voltage can be that mppt is given, also can be that other modes are given, according to the given current-order of outer shroud, realize closed-loop current control, its control effects is maximumly follow given voltage and current signal.
As shown in Figure 2, be Bus outer voltage, current inner loop control block diagram, according to the given current-order of outer shroud, realizes closed-loop current control, and its control effects is that maximum maintenance Bus voltage stabilization situation follows given current signal.
As shown in Figure 3, by two-stage type inverter DC bus-bar voltage stabilizing control system is adopted DC/DC control block diagram, wherein PV voltage is outer shroud, PV electric current is inner ring, Bus voltage control restriction loop directly acts on Boost current reference value, by Bus loop stability dynamic adjustments current/voltage ring, when Bus voltage is higher than BusRef, limit loop by Bus and act on current loop, reduce electric current to export, when Bus voltage is lower than BusRef, limit loop by Bus and act on current loop, improve electric current and export.
The present embodiment provides a kind of control method of two-stage type inverter DC bus-bar voltage, and described two-stage type inverter comprises DC/DC, DC/AC, it is characterized in that, described method comprises the steps:
Step 1: the numerical value being obtained DC voltage, electric current and DC bus-bar voltage by detecting unit;
Step 2: adopt MPPT to control to control the outer voltage of described DC/DC according to the numerical value that step 1 obtains; In whole process, all realize optimal control by maximum power output, but in real process, for meeting DC bus-bar voltage stability contorting, need to carry out regulating system by MPPT control strategy and export situation, thus it is stable to realize DC bus-bar voltage
Step 3: (effect of current inner loop is that the current-order exported by outer voltage carries out Current Control, improves the dynamic response of system according to the current reference value of described outer voltage and the given Systematical control of electric current actual sample value.The effect of outer voltage controls DC voltage according to MPPT instruction, and keeping system presses MPPT work, and DC bus-bar voltage ring realizes the stable of DC bus-bar voltage);
Step 4: according to DC bus-bar voltage and DC bus-bar voltage reference value, dynamic adjustments current reference value (realizes current-order regulated quantity by DC bus-bar voltage ring to combine with the current-order that MPPT instruction controls, dynamic adjustments DC reference value, namely direct current command value).
Concrete operations are, be made up of outer voltage, current inner loop and DC bus-bar voltage control ring in DC/DC, owing to too increasing DC bus-bar voltage control loop in prime, make inverter system at running, no matter be that backing system or rear level system change, system all can regulate, and realizes two-stage inverter front stage and is connected link DC bus-bar voltage stability contorting.
DC bus-bar voltage controls actual DC busbar voltage and follows the tracks of DC bus-bar voltage reference value, change current loop current reference, according to control algolithm and hardware circuit, changing current loop will affect prime changed power, thus realize DC bus-bar voltage stability contorting, be specially, when DC bus-bar voltage is by too high, the current reference value basis of outer voltage is reduced because of the current reference required for the DC bus amount of being elevated, reduce prime input energy, otherwise, increase prime input energy.
Composition graphs 4,5, the design sketch for a kind of two-stage type inverter DC bus-bar voltage stabilizing control system of technical scheme of the present invention:
For in figure, passage 1, grid-connected output current; Passage 2, direct current input side voltage; Passage 3,1/2 DC bus-bar voltage; Passage 4, DC bus-bar voltage.
As can be seen from contrast test, do not adopting two-stage type inverter DC bus-bar voltage stabilizing control system, concrete as in Fig. 4, DC bus-bar voltage root-mean-square value 630v, DC bus-bar voltage maximum 657.4v, DC bus-bar voltage minimum value 615.6v; At employing two-stage type inverter DC bus-bar voltage stabilizing control system, concrete as in Fig. 5, DC bus-bar voltage root-mean-square value 615v, DC bus-bar voltage maximum 630v, DC bus-bar voltage minimum value 601.As can be seen from the above, after adopting two-stage type inverter DC bus-bar voltage stabilizing control system, after DC bus-bar voltage fluctuation reduces; DC bus-bar voltage is stablized, and DC bus-bar voltage utilance is improved further, thus realizes that two-stage type inverter is long-term, stable operation.
Technique effect:
The technical program proposes a kind of two-stage type inverter DC bus-bar voltage stable control method: its DC/AC inversion unit adopts outer voltage stable DC busbar voltage, exchange the unity power factor operation that grid-connected current inner ring realizes grid-connected current, and adopt outer voltage to realize maximum power tracing at DC/DC unit, current inner loop realizes DC side electric current fast and stable and runs, add DC bus-bar voltage control strategy on this basis, by DC bus-bar voltage control strategy dynamic adjustments prime input capability in DC/DC, when DC bus-bar voltage is dragged down, prime input capability is strengthened by DC bus-bar voltage control strategy, improve DC bus-bar voltage, when DC bus-bar voltage by too high time, weaken prime input capability by DC bus-bar voltage control strategy, reduce DC bus-bar voltage, realize DC bus-bar voltage stable operation by busbar voltage control strategy
The present invention is illustrated by above-described embodiment, but should be understood that, above-described embodiment just for the object of illustrating and illustrate, and is not intended to the present invention to be limited in described scope of embodiments.In addition it will be appreciated by persons skilled in the art that the present invention is not limited to above-described embodiment, more kinds of variants and modifications can also be made according to instruction of the present invention, within these variants and modifications all drop on the present invention's scope required for protection.Protection scope of the present invention defined by the appended claims and equivalent scope thereof.
Claims (3)
1. a control method for two-stage type inverter DC bus-bar voltage, described two-stage type inverter comprises DC/DC, and DC/AC, it is characterized in that, described method comprises the steps:
Step 1: the numerical value being obtained DC voltage, DC side electric current and DC bus-bar voltage by detecting unit;
Step 2: adopt MPPT to control to control the outer voltage of described DC/DC according to the numerical value that step 1 obtains;
Step 3: according to current reference value and the given Systematical control of electric current actual sample value of described outer voltage;
Step 4: according to DC bus-bar voltage and DC bus-bar voltage reference value, dynamic adjustments current reference value.
2. the method for claim 1, is characterized in that: the MPPT control strategy in the numerical value set-up procedure 2 obtained according to step 1.
3. the method for claim 1, is characterized in that: the DC bus-bar voltage reference value setting of described step 4, by DC bus-bar voltage ring, realizes current-order regulated quantity and combine with the current-order that MPPT instruction controls, dynamic adjustments DC reference value.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913340A (en) * | 2016-06-14 | 2016-08-31 | 申瓯通信设备有限公司 | Direct-current bus voltage control method based on PID algorithm |
| CN109327153A (en) * | 2018-10-15 | 2019-02-12 | 四川长虹电器股份有限公司 | The single-phase off-network inverter control method of photovoltaic |
| CN110829941A (en) * | 2019-11-08 | 2020-02-21 | 中国科学院长春光学精密机械与物理研究所 | Motor driving circuit and control method thereof |
| CN111193402A (en) * | 2019-12-23 | 2020-05-22 | 深圳市核达中远通电源技术股份有限公司 | Digital control system and method of DC-DC power supply |
| CN117792113A (en) * | 2024-02-26 | 2024-03-29 | 西安麦格米特电气有限公司 | Bus voltage control method, two-stage bidirectional converter and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969281A (en) * | 2010-10-14 | 2011-02-09 | 北京四方继保自动化股份有限公司 | Coordination control and optimization method for battery energy accumulation and photovoltaic power generation based on co-direct current bus |
| CN102355007A (en) * | 2011-09-30 | 2012-02-15 | 河北省电力建设调整试验所 | Modeling method for grid-connected photovoltaic power supply based on PSASP (power system analysis software package) |
| CN102447268A (en) * | 2011-12-19 | 2012-05-09 | 湖南大学 | Robust dicyclic photovoltaic grid-connected control method based on power feedforward |
-
2015
- 2015-08-14 CN CN201510501731.9A patent/CN105141156A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969281A (en) * | 2010-10-14 | 2011-02-09 | 北京四方继保自动化股份有限公司 | Coordination control and optimization method for battery energy accumulation and photovoltaic power generation based on co-direct current bus |
| CN102355007A (en) * | 2011-09-30 | 2012-02-15 | 河北省电力建设调整试验所 | Modeling method for grid-connected photovoltaic power supply based on PSASP (power system analysis software package) |
| CN102447268A (en) * | 2011-12-19 | 2012-05-09 | 湖南大学 | Robust dicyclic photovoltaic grid-connected control method based on power feedforward |
Non-Patent Citations (1)
| Title |
|---|
| 陈诚 等: "基于改进双闭环控制的光伏并网系统研究", 《华东交通大学学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913340A (en) * | 2016-06-14 | 2016-08-31 | 申瓯通信设备有限公司 | Direct-current bus voltage control method based on PID algorithm |
| CN109327153A (en) * | 2018-10-15 | 2019-02-12 | 四川长虹电器股份有限公司 | The single-phase off-network inverter control method of photovoltaic |
| CN110829941A (en) * | 2019-11-08 | 2020-02-21 | 中国科学院长春光学精密机械与物理研究所 | Motor driving circuit and control method thereof |
| CN111193402A (en) * | 2019-12-23 | 2020-05-22 | 深圳市核达中远通电源技术股份有限公司 | Digital control system and method of DC-DC power supply |
| CN117792113A (en) * | 2024-02-26 | 2024-03-29 | 西安麦格米特电气有限公司 | Bus voltage control method, two-stage bidirectional converter and storage medium |
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