CN108253576A - A kind of central air-conditioning power regulation method for considering electric system frequency modulation - Google Patents

A kind of central air-conditioning power regulation method for considering electric system frequency modulation Download PDF

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Publication number
CN108253576A
CN108253576A CN201711346909.2A CN201711346909A CN108253576A CN 108253576 A CN108253576 A CN 108253576A CN 201711346909 A CN201711346909 A CN 201711346909A CN 108253576 A CN108253576 A CN 108253576A
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CN
China
Prior art keywords
conditioning
central air
air
frequency modulation
electric system
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Pending
Application number
CN201711346909.2A
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Chinese (zh)
Inventor
杨建林
黄超
黄一超
王海群
纪元
高赐威
郭旭歆
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Southeast University
State Grid Shanghai Electric Power Co Ltd
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Southeast University
State Grid Shanghai Electric Power Co Ltd
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Application filed by Southeast University, State Grid Shanghai Electric Power Co Ltd filed Critical Southeast University
Priority to CN201711346909.2A priority Critical patent/CN108253576A/en
Publication of CN108253576A publication Critical patent/CN108253576A/en
Pending legal-status Critical Current

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Abstract

The present invention discloses a kind of central air-conditioning power regulation method for considering electric system frequency modulation, in mains frequency fluctuation, according to air-conditioning energy consumption rule, with reference to the condition in air-conditioning effect room, in the case where not influencing indoor temperature, automatic adjustment chilled water leaving water temperature provides frequency modulation service so as to improve or reduce central air-conditioning operation power for electric system；The power regulation method specifically comprises the following steps：Step 101, determine that energy consumption reduces coefficient according to the nameplate parameter and use state of handpiece Water Chilling Units；Step 102, FM signal frequency response analysis is carried out to central air-conditioning, asks for the lower-frequency limit that central air-conditioning central air-conditioning can undertake.Such method can realize central air-conditioning by changing its operating power so as to provide frequency modulation service for power grid.

Description

A kind of central air-conditioning power regulation method for considering electric system frequency modulation
Technical field
The invention belongs to demand side management technology field, more particularly to a kind of central hollow Power Regulation for considering electric system frequency modulation Rate regulates and controls method.
Background technology
Both at home and abroad to the research of flexible load in VPP mainly in the air-conditioning and heating system that can directly control, wherein Central air-conditioning has the ability of the quick demand response of offer, by building automatic system because its scale of construction is greatly and the characteristics of thermal inertia System, frequency modulation service is provided in mains frequency fluctuation by reducing or improving power for power grid.
Invention content
The purpose of the present invention is to provide a kind of central air-conditioning power regulation method for considering electric system frequency modulation, can Realize central air-conditioning by changing its operating power so as to provide frequency modulation service for power grid.
In order to achieve the above objectives, solution of the invention is：
A kind of central air-conditioning power regulation method for considering electric system frequency modulation, includes the following steps：
Step 101, determine that energy consumption reduces factor alpha according to the nameplate parameter and use state of handpiece Water Chilling Units；
Step 102, FM signal frequency response analysis is carried out to central air-conditioning, asking for central air-conditioning central air-conditioning can undertake Lower-frequency limit ω.
In above-mentioned steps 101, energy consumption reduces factor alpha and represents that chilled water leaving water temperature averagely improves 1 DEG C, air-conditioning energy consumption α is reduced, i.e.,：
ΔPair=α × Δ Twat
In formula, Δ TwatFor chilled water leaving water temperature regulated quantity, Δ PairPower variation is run for central air-conditioning.
It is 2%~3% that above-mentioned energy consumption, which reduces factor alpha value,.
It is 2.5% that above-mentioned energy consumption, which reduces factor alpha value,.
The particular content of above-mentioned steps 102 is：
Step 1021, according to building type, room parameter lambda is inputted1,λ2,b,Tin(0)；
Step 1022, original frequency ω=0 is chosen；
Step 1023, according to α × Δ Twat=sin ω t calculate corresponding leaving water temperature regulated quantity Δ Twat；
Step 1024, according toCalculated room temperature change is bent Line Tin(t)；
Step 1025, judge Tin(t) whether maximum value is beyond 27 DEG C, if it has, then performing step 1026；If it has not, then Perform step 1027；
Step 1026, increase frequencies omega, perform step 1023；
Step 1027, minimum frequency ω is obtained and according to Δ Pair=α × Δ Twat, calculated power value Pair, wherein, Δ Pair Power variation is run for central air-conditioning.
After using the above scheme, compared with prior art, the present invention haing the following advantages：
(1) by building automation system, tune is provided for power grid in mains frequency fluctuation by reducing or improving power Be taken in small doses at short intervals business.
(2) resource of Demand-side is made preferably to participate in electric system frequency modulation, the fm capacity of power grid is improved, enables power grid The new energy quantity of receiving increases, and contributes for power network safety operation.
Description of the drawings
Fig. 1 is the broad flow diagram of the present invention.
Specific embodiment
Below with reference to attached drawing, technical scheme of the present invention is described in detail.
The present invention provides a kind of central air-conditioning power regulation method for considering electric system frequency modulation, in mains frequency fluctuation When, according to air-conditioning energy consumption rule, the condition in room is acted on reference to air-conditioning, in the case where not influencing indoor temperature, automatically Chilled water leaving water temperature is adjusted so as to improve or reduce central air-conditioning operation power, frequency modulation service is provided for electric system；It is described Power regulation method includes the following steps：
101) determine that energy consumption reduces factor alpha according to the nameplate parameter and use state of handpiece Water Chilling Units；
In the step 101), energy consumption reduces factor alpha and represents that chilled water leaving water temperature averagely improves 1 DEG C, central air-conditioning energy Consumption reduces α, i.e.,：
ΔPair=α × Δ Twat
In formula, Δ TwatFor chilled water leaving water temperature regulated quantity, Δ PairPower variation is run for central air-conditioning.
The value is 2%~3%, generally can be taken as 2.5%.
102) FM signal frequency response analysis is carried out to central air-conditioning, asks for the frequency that central air-conditioning central air-conditioning can undertake Rate lower limit ω；
Coordinate shown in Fig. 1, the step 102) specifically includes：
1021) according to building type, room parameter lambda is inputted1,λ2,b,Tin(0)；Wherein, room initial temperature：
In formula, Qer=(keNe+k1N1)Sc+(kpqs+q1)npScα
keAnd k1It is the refrigeration duty parameter of electrical vehicle pond and lighting system respectively, NeAnd N1Respectively electrical equipment and illumination The heat flow rate per unit area of system, ScFor refrigerated area area, kpFor sensible heat gain from human bodies refrigeration duty system, qsAnd q1Respectively Human body sensible heat and latent heat heat dissipation capacity, npFor unit area number, α represents cluster coefficient, ρaFor atmospheric density, VkFor chamber interior volume, caFor air specific heat capacity, ksFor interior wall heat storage coefficient,For interior wall area, ktopAnd kwallThe heat on respectively roof and wall passes Lead coefficient, SwallAnd StopThe respectively area of wall and roof, mzTo freeze water quality, cwFor chilled water specific heat capacity；
1022) original frequency ω=0 is chosen；
1023) according to 2.5% × Δ Twat=sin ω t calculate corresponding leaving water temperature regulated quantity Δ Twat；
1024) basisCalculated room temperature variation curve Tin (t)；
1025) judge Tin(t) whether maximum value is beyond 27 DEG C, if it has, then performing step 1026)；If it has not, it then performs Step 1027)；
1026) increase frequencies omega, perform step 1023)；
1027) minimum frequency ω is obtained and according to Pair=2.5% × Δ Twat, calculated power value Pair。
Above example is merely illustrative of the invention's technical idea, it is impossible to protection scope of the present invention is limited with this, it is every According to technological thought proposed by the present invention, any change done on the basis of technical solution each falls within the scope of the present invention Within.

Claims (5)

  1. A kind of 1. central air-conditioning power regulation method for considering electric system frequency modulation, it is characterised in that include the following steps：
    Step 101, determine that energy consumption reduces factor alpha according to the nameplate parameter and use state of handpiece Water Chilling Units；
    Step 102, FM signal frequency response analysis is carried out to central air-conditioning, asks for the frequency that central air-conditioning central air-conditioning can undertake Rate lower limit ω.
  2. 2. a kind of central air-conditioning power regulation method for considering electric system frequency modulation as described in claim 1, it is characterised in that： In the step 101, energy consumption reduces factor alpha and represents that chilled water leaving water temperature averagely improves 1 DEG C, and air-conditioning energy consumption reduces α, I.e.：
    ΔPair=α × Δ Twat
    In formula, Δ TwatFor chilled water leaving water temperature regulated quantity, Δ PairPower variation is run for central air-conditioning.
  3. 3. a kind of central air-conditioning power regulation method for considering electric system frequency modulation as claimed in claim 2, it is characterised in that： It is 2%~3% that the energy consumption, which reduces factor alpha value,.
  4. 4. a kind of central air-conditioning power regulation method for considering electric system frequency modulation as claimed in claim 3, it is characterised in that： It is 2.5% that the energy consumption, which reduces factor alpha value,.
  5. 5. a kind of central air-conditioning power regulation method for considering electric system frequency modulation as described in claim 1, it is characterised in that： The particular content of the step 102 is：
    Step 1021, according to building type, room parameter lambda is inputted1,λ2,b,Tin(0)；
    Step 1022, original frequency ω=0 is chosen；
    Step 1023, according to α × Δ Twat=sin ω t calculate corresponding leaving water temperature regulated quantity Δ Twat；
    Step 1024, according toCalculated room temperature variation curve Tin (t)；
    Step 1025, judge Tin(t) whether maximum value is beyond 27 DEG C, if it has, then performing step 1026；If it has not, it then performs Step 1027；
    Step 1026, increase frequencies omega, perform step 1023；
    Step 1027, minimum frequency ω is obtained and according to Δ Pair=α × Δ Twat, calculated power value Pair, wherein, Δ PairFor in Entreat operation of air conditioner power variation.
CN201711346909.2A 2017-12-15 2017-12-15 A kind of central air-conditioning power regulation method for considering electric system frequency modulation Pending CN108253576A (en)

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CN201711346909.2A CN108253576A (en) 2017-12-15 2017-12-15 A kind of central air-conditioning power regulation method for considering electric system frequency modulation

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JPS56142338A (en) * 1980-04-08 1981-11-06 Mitsubishi Electric Corp Controlling method of air conditioner
JPH10332187A (en) * 1997-06-03 1998-12-15 Daikin Ind Ltd Air-conditioning control system
JP2004139582A (en) * 2002-09-25 2004-05-13 Asahi Glass Co Ltd Warmth amenity performance evaluation method of structure, design support method of structure taking body warmth amenity into consideration, program, and system
CN201547914U (en) * 2009-11-13 2010-08-11 深圳达实智能股份有限公司 Air-conditioning energy consumption remote monitoring system
CN103257571A (en) * 2013-04-22 2013-08-21 东南大学 Air conditioning load control strategy making method based on direct load control
CN105004015A (en) * 2015-08-25 2015-10-28 东南大学 Central air-conditioning modeling and controlling strategy on basis of demand response
CN105042800A (en) * 2015-09-01 2015-11-11 东南大学 Variable-frequency air conditioner load modeling and operation controlling method based on demand responses
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CN105352108A (en) * 2015-09-29 2016-02-24 中国电力科学研究院 Load optimization control method based on air conditioner electricity utilization mode
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CN107062548A (en) * 2017-04-25 2017-08-18 天津大学 A kind of central air-conditioning varying load rate adjustment control method based on argument sequence

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Application publication date: 20180706