CN113555911B - Central air conditioning power grid peak regulation system based on phase change material energy storage - Google Patents
Central air conditioning power grid peak regulation system based on phase change material energy storage Download PDFInfo
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- CN113555911B CN113555911B CN202110887392.8A CN202110887392A CN113555911B CN 113555911 B CN113555911 B CN 113555911B CN 202110887392 A CN202110887392 A CN 202110887392A CN 113555911 B CN113555911 B CN 113555911B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
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Abstract
The invention discloses a phase-change material energy storage based central air-conditioning power grid peak regulation system, which relates to the field of power grids and comprises the following components: the power supply module is used for supplying different required electric quantity in different electricity utilization periods; the voltage reduction rectification filter module is used for converting 220V alternating current into direct current higher than 10V and lower than 15V; the voltage stabilizing module is used for stably outputting 5V direct current; compared with the prior art, the invention has the beneficial effects that: the first hydraulic power supply and the second hydraulic power supply are added on the basis of the traditional thermal power supply, so that the thermal power supply, the first hydraulic power supply and the second hydraulic power supply are used for supplying power together at the peak time of power utilization; in the electricity utilization gentle time period, the firepower power supply and the second hydraulic power supply power; the power consumption valley period, firepower power supply supplies power, and the effectual electric wire netting burden that slows down the power consumption peak period reduces the power supply quantity simultaneously at the power consumption valley period, practices thrift the electric energy.
Description
Technical Field
The invention relates to the field of power grids, in particular to a phase-change material energy storage based peak regulation system for a central air-conditioning power grid.
Background
The peak shaving of the power grid is to adjust the output of the generator set in order to meet the requirement of peak load of power utilization of the power grid. Peak loads typically occur during daytime operation. When scheduling peak shaving of the power grid, the demand capacity and related safety constraints must be fully considered, while also considering the economics of peak shaving. These security constraints mainly include: (1) areas with weak links are divided into areas to be balanced; (2) the peak regulation speed is in accordance with the actual condition of the power grid; (3) and the voltage quality requirement is met.
At present, electricity consumption in China is still large-scale thermal power generation, and peak regulation of thermal power generating units can achieve the peak regulation effect, but the power supply coal consumption is increased, the power generation cost is increased, the environment is polluted, and improvement is needed.
Disclosure of Invention
The invention aims to provide a phase-change material energy storage-based central air-conditioning power grid peak regulation system to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a phase change material energy storage based central air conditioning power grid peak shaving system comprises:
the power supply module is used for supplying different required electric quantities in different electricity utilization periods, and in electricity utilization peak periods, thermal power supply, first hydraulic power supply and second hydraulic power supply are used for supplying power; in the electricity utilization gentle time period, the firepower power supply and the second hydraulic power supply power; in the electricity low-valley period, the power is supplied by firepower;
the voltage reduction rectification filter module is used for converting 220V alternating current into direct current higher than 10V and lower than 15V;
the voltage stabilizing module is used for stably outputting 5V direct current;
the first time delay module is used for conducting in the peak period of power utilization and outputting voltage to the first control module;
the first control module is used for controlling the first hydraulic power supply to supply power when the first control module is powered on;
the second time delay module is used for conducting in the electricity utilization valley period and outputting voltage to the second control module;
the second control module is used for controlling the second hydraulic power supply to stop supplying power when the power is on;
the output end of the power supply module is connected with the input end of the voltage reduction rectification filter module, the output end of the voltage reduction rectification filter module is connected with the input end of the voltage stabilization module, the output end of the voltage stabilization module is connected with the input end of the first delay module, the second input end of the first control module, the output end of the first delay module is connected with the first input end of the first control module, the first output end of the first control module is connected with the first input end of the power supply module, the second output end of the first control module is connected with the second input end of the second control module, the input end of the second delay module, the output end of the second delay module is connected with the first input end of the second control module, and the output end of the second control module is connected with the second input end of the power supply module.
As a still further scheme of the invention: the power supply module comprises thermal power generation, first hydraulic power supply, second hydraulic power supply, a first switch, a second switch and a live wire, the thermal power generation is connected with the live wire, the first hydraulic power supply is connected with the live wire through the first switch, and the second hydraulic power supply is connected with the live wire through the second switch.
As a still further scheme of the invention: the voltage reduction rectification filter module comprises a transformer, a rectifier, a first capacitor, a second capacitor and a first inductor, wherein one end of the input end of the transformer is connected with a live wire, the other end of the input end of the transformer is connected with a zero line, one end of the output end of the transformer is connected with a pin No. 2 of the rectifier, the other end of the output end of the transformer is connected with a pin No. 4 of the rectifier, a pin No. 3 of the rectifier is connected with the first capacitor and the first inductor, the other end of the first capacitor is connected with a pin No. 1 of the rectifier, the second capacitor, the other end of the second capacitor is connected with the other end of the first inductor, and the input end of the voltage stabilization module.
As a still further scheme of the invention: the voltage stabilizing module comprises a first resistor, a voltage stabilizer and a third capacitor, one end of the first resistor is connected with the output end of the voltage reduction rectification filtering module, the other end of the first resistor is connected with the input end of the voltage stabilizer, the grounding end of the voltage stabilizer is grounded, and the output end of the voltage stabilizer is connected with the third capacitor, the input end of the first time delay module and the second input end of the first control module.
As a still further scheme of the invention: the first time delay module comprises a second timer, a fourth capacitor, a fifth capacitor, a second resistor, a third resistor, a fourth resistor, a first diode and a second diode, a No. 4 pin of the second timer is connected with the output end of the voltage stabilizing module, no. 8 pin of the second timer, No. 7 pin of the second timer, a fourth resistor and a second resistor, the other end of the second resistor is connected with the anode of the first diode, the cathode of the first diode is connected with the third resistor, the other end of the third resistor is connected with the fourth capacitor, the anode of the second diode, No. 2 pin of the second timer and No. 6 pin of the second timer, the other end of the fourth capacitor is grounded, the cathode of the second diode is connected with the other end of the fourth resistor, No. 5 pin of the second timer is grounded through the fifth capacitor, No. 1 pin of the second timer is grounded, and No. 3 pin of the second timer is connected with the first input end of the first control module.
As a still further scheme of the invention: the first control module comprises a first MOS (metal oxide semiconductor) tube, an eighth resistor, a fourth diode, a first relay, a third diode and a controlled silicon, the G pole of the first MOS tube is connected with the output end of the first time delay module, the S pole of the first MOS tube is connected with the anode of the fourth diode, the control pole of the controlled silicon, the cathode of the fourth diode is grounded, the D pole of the first MOS tube is connected with the eighth resistor, the other end of the eighth resistor is connected with the first relay, the anode of the third diode, the cathode of the third diode is connected with the other end of the first relay, the anode of the controlled silicon and the output end of the voltage stabilizing module, the cathode of the controlled silicon is connected with the input end of the second time delay module and the second input end of the second control module.
As a still further scheme of the invention: the second delay module comprises a fifth resistor, a sixth resistor, a fifth diode, a sixth capacitor, a seventh resistor, a sixth diode, a seventh capacitor and a third timer, one end of the fifth resistor is connected with the second output end of the first control module, the other end of the fifth resistor is connected with the anode of a fifth diode, the cathode of the fifth diode is connected with a sixth resistor, the other end of the sixth resistor is connected with a sixth capacitor, the anode of the sixth diode, the pin 2 of the third timer and the pin 6 of the third timer, the other end of the sixth capacitor is grounded, the cathode of the sixth diode is connected with the other end of the seventh resistor, the pin 5 of the third timer is grounded through the seventh capacitor, the pin 1 of the third timer is grounded, and the pin 3 of the third timer is connected with the first input end of the second control module.
As a still further scheme of the invention: the second control module comprises a seventh diode, a second relay, a second MOS (metal oxide semiconductor) tube, a ninth resistor and an eighth diode, the cathode of the seventh diode is connected with the second relay, the second output end of the first control module, the anode of the seventh diode is connected with the other end of the second relay and the ninth resistor, the other end of the ninth resistor is connected with the D pole of the second MOS tube, the G pole of the second MOS tube is connected with the output end of the second delay module, the S pole of the second MOS tube is connected with the anode of the eighth diode, and the cathode of the eighth diode is grounded.
Compared with the prior art, the invention has the beneficial effects that: the first hydraulic power supply and the second hydraulic power supply are added on the basis of the traditional thermal power supply, so that the thermal power supply, the first hydraulic power supply and the second hydraulic power supply are used for supplying power together at the peak time of power utilization; in the electricity utilization gentle time period, the firepower power supply and the second hydraulic power supply power; the power consumption valley period, firepower power supply supplies power, and the effectual electric wire netting burden that slows down the power consumption peak period reduces the power supply quantity simultaneously at the power consumption valley period, practices thrift the electric energy.
Drawings
Fig. 1 is a schematic diagram of a phase-change material energy storage based central air-conditioning power grid peak shaving system.
Fig. 2 is a circuit diagram of a phase-change material energy storage based central air-conditioning power grid peak shaving system.
FIG. 3 is a pin diagram of a 555 timer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1, a phase-change material energy storage based peak shaving system for a central air-conditioning power grid includes:
the power supply module 1 is used for supplying different required electric quantities in different electricity utilization periods, and in electricity utilization peak periods, the thermal power supply 11, the first hydraulic power supply 12 and the second hydraulic power supply 13 supply power; in the electricity utilization gentle time period, the firepower electricity supply 11 and the second hydraulic power electricity supply 13 supply electricity; in the electricity consumption valley period, the thermal power supply 11 supplies power;
the voltage reduction rectification filter module 2 is used for converting 220V alternating current into direct current higher than 10V and lower than 15V;
the voltage stabilizing module 3 is used for stably outputting 5V direct current;
the first time delay module 4 is used for conducting in the peak period of power utilization and outputting voltage to the first control module 5;
the first control module 5 is used for controlling the first hydraulic power supply 12 to supply power when the power is on;
the second delay module 6 is used for conducting in the electricity utilization valley period and outputting voltage to the second control module 7;
the second control module 7 is used for controlling the second hydraulic power supply 13 to stop supplying power when the power is on;
the output end of the power supply module 1 is connected with the input end of the voltage reduction rectification filter module 2, the output end of the voltage reduction rectification filter module 2 is connected with the input end of the voltage stabilization module 3, the output end of the voltage stabilization module 3 is connected with the input end of the first delay module 4, the second input end of the first control module 5, the output end of the first delay module 4 is connected with the first input end of the first control module 5, the first output end of the first control module 5 is connected with the first input end of the power supply module 1, the second output end of the first control module 5 is connected with the second input end of the second control module 7, the input end of the second delay module 6, the output end of the second delay module 6 is connected with the first input end of the second control module 7, and the output end of the second control module 7 is connected with the second input end of the power supply module 1.
In the specific embodiment, the country supplies power to residents and factories through a power grid, and the power supply quantity needs to be increased due to the fact that the power supply quantity is insufficient in unit time during peak electricity utilization period; in the off-peak period, the power supply amount is more than the power consumption amount in the unit time, and unnecessary electric energy is consumed, so that the power supply amount in different working time needs to be adjusted. In the scheme, different electricity utilization periods are achieved through the completely same timer and peripheral circuits (the first delay module 4 and the second delay module 6), the supplied electricity quantity on the power grid is different, the first delay module 4 and the second delay module 6 output high level for 8 hours after preparing for 16 hours, since the second delay module 6 is electrically conducted through the thyristor Z1 of the first control module, after the circuit is conducted, after the first delay module 4 is prepared for 16 hours, the first delay module 4 outputs a high level for 8 hours, so that the thyristor Z1 is turned on, the thyristor Z1 is turned on to make the second delay module 6 ready for 16 hours, after 16 hours the second delay module 6 outputs high level for 8 hours, therefore, through the same circuit, only one thyristor needs to pass through, so that the time difference between the first delay module 4 and the second delay module 6 starting to output the high level is 16 hours.
In this embodiment: referring to fig. 2, the power supply module 1 includes a thermal power generator, a first hydraulic power supply 12, a second hydraulic power supply 13, a first switch S1, a second switch S2, and a live wire L, wherein the thermal power generator is connected to the live wire L, the first hydraulic power supply 12 is connected to the live wire L through the first switch S1, and the second hydraulic power supply 13 is connected to the live wire L through the second switch S2.
The thermal power supply 11, the first hydraulic power supply 12 and the second hydraulic power supply 13 supply power together at the peak time of electricity utilization; in the electricity utilization gentle time period, the firepower electricity supply 11 and the second hydraulic power electricity supply 13 supply electricity; the power consumption low ebb time section, firepower supply 11 supplies power, and the effectual electric wire netting burden that slows down the power consumption peak period reduces the power supply quantity simultaneously at the power consumption low ebb time section, practices thrift the electric energy.
In another embodiment, the thermal power supply 11, the first hydraulic power supply 12, and the second hydraulic power supply 13 may be replaced with the first thermal power supply, the second thermal power supply, and the third thermal power supply, but the use of the thermal power supply 11 in large amounts increases the power consumption and pollutes the environment.
In this embodiment: referring to fig. 2, the buck rectifying and filtering module 2 includes a transformer W, a rectifier T, a first capacitor C1, a second capacitor C2, and a first inductor L1, one end of an input end of the transformer W is connected to a live line L, the other end of the input end of the transformer W is connected to a zero line N, one end of an output end of the transformer W is connected to pin No. 2 of the rectifier T, the other end of the output end of the transformer W is connected to pin No. 4 of the rectifier T, pin No. 3 of the rectifier T is connected to the first capacitor C1 and the first inductor L1, pin No. 1 of the rectifier T is connected to the other end of the first capacitor C1 and the second capacitor C2, and the other end of the second capacitor C2 is connected to the other end of the first inductor L1 and the input end of the voltage stabilizing module 3.
The 220V alternating current on the live line L and the neutral line N is changed into low-voltage alternating current of 10V to 15V through the transformer W, is changed into unstable low-voltage direct current of 10V to 15V through the rectifier T, and is changed into low-voltage direct current of 10V to 15V through the first capacitor C1, the second capacitor C2 and the first inductor L1.
In another embodiment, the second capacitor C2 may be replaced by a resistor to achieve the same filtering effect, but the capacitance requirement of the first capacitor C1 is larger.
In this embodiment: referring to fig. 2, the voltage stabilizing module 3 includes a first resistor R1, a voltage regulator U1, and a third capacitor C3, one end of the first resistor R1 is connected to the output end of the buck rectifier filter module 2, the other end of the first resistor R1 is connected to the input end of the voltage regulator U1, the ground end of the voltage regulator U1 is grounded, and the output end of the voltage regulator U1 is connected to the third capacitor C3, the input end of the first delay module 4, and the second input end of the first control module 5.
Because the input voltage is direct current voltage of 10V to 15V, the conversion voltage of the voltage stabilizer U1 is satisfied, the model of the voltage stabilizer U1 selects 7805, and 5V voltage is fixedly output.
In another embodiment, regulator U1 may be replaced by a zener diode, but achieving a constant output voltage of 5V through a zener diode is cumbersome.
In this embodiment: referring to fig. 2 and 3, the first delay module 4 includes a second timer U2, a fourth capacitor C4, a fifth capacitor C5, a second resistor R2, a third resistor R3, a fourth resistor R4, a first diode D1, and a second diode D2, the pin No. 4 of the second timer U2 is connected to the output terminal of the voltage regulator module 3, the pin No. 8 of the second timer U2, the pin No. 7 of the second timer U2, the fourth resistor R4, and the second resistor R2, the other end of the second resistor R2 is connected to the anode of the first diode D1, the cathode of the first diode D1 is connected to the third resistor R3, the other end of the third resistor R3 is connected to the fourth capacitor C4, the anode of the second diode D4, the pin No. 2 of the second timer U4, the cathode of the second timer U366, the cathode of the fourth capacitor C4, the other end of the fourth resistor R4 is connected to the ground, and the other end of the first diode D4 is connected to the ground through the first capacitor C4, pin 1 of the second timer U2 is grounded, and pin 3 of the second timer U2 is connected to the first input terminal of the first control module 5.
The model of the second timer U2 is 555 timer, when one of pin No. 2 and pin No. 6 is at low level (lower than 1/3 of input voltage), the output voltage of pin No. 3 is at high level, otherwise, pin No. 3 outputs low level; meanwhile, when the high levels of the No. 2 pin and the No. 6 pin exceed the threshold (namely 2/3 of the input voltage), the No. 7 pin is internally conducted to absorb the voltage; in the invention, the voltage of the pin No. 2 and the pin No. 6 of the second timer U2 is the voltage of the fourth capacitor C4, at the beginning, the voltage of the fourth capacitor C4 is 0, the pin No. 3 of the second timer U2 outputs high level, the fourth capacitor C4 is charged through the second resistor R2, the first diode D1 and the third resistor R3, when the high level is reached, the pin No. 3 of the second timer U2 outputs low level, the fourth capacitor C4 is continuously charged, when the pin No. 7 of the second timer U2 is turned on, the voltage of the fourth capacitor C4 is discharged through the pin No. 7 and becomes low level again, the pin No. 3 of the second timer U2 outputs high level, the charging time is adjusted to 16 hours, and the discharging time is adjusted to 8, so that the pin No. 3 of the second timer U2 outputs high level in the electricity utilization peak period.
In another embodiment, the third resistor R3 can be replaced by a potentiometer to adjust the charging time, and the charging time does not need to be changed in the invention.
In this embodiment: referring to fig. 2, the first control module 5 includes a first MOS transistor V1, an eighth resistor R8, a fourth diode D4, a first relay J1, a third diode D3, and a thyristor Z1, a G pole of the first MOS transistor V1 is connected to the output end of the first delay module 4, an S pole of the first MOS transistor V1 is connected to an anode of the fourth diode D4 and a control pole of the thyristor Z1, a cathode of the fourth diode D4 is grounded, a D pole of the first MOS transistor V1 is connected to the eighth resistor R8, another end of the eighth resistor R8 is connected to anodes of the first relay J1 and the third diode D3, a cathode of the third diode D3 is connected to another end of the first relay J1, an anode of the thyristor Z1, and an output end of the voltage regulator module 3, and a cathode of the thyristor Z1 is connected to an input end of the second delay module 6 and a second input end of the second control module 7.
When the first relay J1 works, the first switch S1 is closed, and when the first relay J1 does not work, the first switch S1 pops open; when the pin 3 of the second timer U2 outputs a high level, the first relay J1 is powered on to operate, so that the first switch S1 is closed, and the first hydraulic power supply 12 supplies power. If the output high level of the first delay module 4 is 8 to 16 points (the plant operation peak period) is the electricity utilization peak period, the first hydraulic power supply 12 supplies power from 8 to 16 points. Meanwhile, the control electrode of the controllable silicon Z1 is electrified to work, so that the second control module 7 and the second delay module 6 are electrified to work.
In another embodiment, the eighth resistor R8 can be replaced by a potentiometer, and the resistance of the potentiometer cannot be too small, and the price of the potentiometer is high.
In this embodiment: referring to fig. 2 and 3, the second delay module 6 includes a fifth resistor R5, a sixth resistor R6, a fifth diode D5, a sixth capacitor C6, a seventh resistor R7, a sixth diode D6, a seventh capacitor C7, and a third timer U3, one end of the fifth resistor R5 is connected to the second output terminal of the first control module 5, the seventh resistor R7, the pin No. 7 of the third timer U3, the pin No. 8 of the third timer U3, and the pin No. 4 of the third timer U3, the other end of the fifth resistor R5 is connected to the anode of the fifth diode D5, the cathode of the fifth diode D5 is connected to the sixth resistor R6, the other end of the sixth resistor R6 is connected to the sixth capacitor C6, the anode of the sixth diode D6, the pin No. 2 of the third timer U3, the cathode of the sixth resistor U866, and the cathode of the sixth capacitor R8658 are connected to the ground, pin No. 5 of the third timer U3 is grounded through the seventh capacitor C7, pin No. 1 of the third timer U3 is grounded, and pin No. 3 of the third timer U3 is connected to the first input terminal of the second control module 7.
The second delay module 6 and the first delay module 4 are identical in device, so that the circuit is simple, the charging time is 16 hours, and the discharging time is 8 hours, but due to the delayed conduction of the thyristor Z1, the second delay module 6 is charged after the first delay module 4 outputs a high level, if the discharging time of the first delay module 4 is from 8 to 16 (factory work peak period), the second delay module 6 starts charging at 8, and the 24-point charging is completed, so that the power consumption valley period, i.e., from 24 to 8 in the next day, and the pin 3 of the third timer U3 continuously outputs a high level.
In another embodiment, 556 timers can be used instead of 555 timers, but it is not necessary that 556 timers are a combination of two 555 timers, and the 555 timers can be satisfied in the present invention.
In this embodiment: referring to fig. 2, the second control module 7 includes a seventh diode D7, a second relay J2, a second MOS transistor V2, a ninth resistor R9, and an eighth diode D8, a cathode of the seventh diode D7 is connected to the second relay J2 and the second output terminal of the first control module 5, an anode of the seventh diode D7 is connected to the other end of the second relay J2 and the ninth resistor R9, the other end of the ninth resistor R9 is connected to a D-pole of the second MOS transistor V2, a G-pole of the second MOS transistor V2 is connected to the output terminal of the second delay module 6, an S-pole of the second MOS transistor V2 is connected to an anode of the eighth diode D8, and a cathode of the eighth diode D8 is grounded.
When the second relay J2 works, the second switch S2 springs open, and when the second relay J2 does not work, the second switch S2 is closed; the second delay module 6 outputs a high level from 24 to 8 the next day, and the second relay J2 is powered on to work in this period, so that the second hydraulic power supply 13 stops supplying power in the power consumption valley period.
In another embodiment, the eighth diode D8 may be omitted, and the eighth diode D8 may be a light emitting diode, which may serve as an indication when the second relay J2 is in operation, to facilitate the determination of whether the second hydraulic power supply 13 is supplying power.
The working principle of the invention is as follows: setting 8 to 16 points as a peak time period, 16 to 24 points as a gentle time period, and 24 to the next day and 8 points as a valley time period, wherein the power supply module 1 supplies 220V alternating current, the voltage reduction rectification filter module 2 converts the alternating current into low-voltage direct current of 10V to 15V, the voltage stabilization module 3 supplies power and outputs 5V direct current voltage, and the first delay module 4 is conducted at the 8 to 16 point time period, so that the first control module 5 works at the 8 to 16 point time period and controls the first hydraulic power supply 12 to supply power; the second delay module 6 is conducted from 24 to 8 days, so that the second control module 7 works from 24 to 8 days and controls the second hydraulic power supply 13 to stop supplying power; therefore, the 8-point to 16 ignition power supply 11, the first hydraulic power supply 12 and the second hydraulic power supply 13 are all supplied with power; from 16 to 24, the thermal power supply 11 and the second hydraulic power supply 13 supply power; 24 a little to 8 a day next, only firepower supply 11 supplies power, has guaranteed that the power supply volume on the power consumption time interval electric wire netting of difference is different, has both satisfied the power consumption demand of power consumption peak period, has solved the electric energy loss of power consumption trough period again.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a central air conditioning electric wire netting peak shaving system based on phase change material energy storage which characterized in that:
this central air conditioning electric wire netting system of adjusting peak based on phase change material energy storage includes:
the power supply module is used for supplying different required electric quantities in different electricity utilization periods, and in electricity utilization peak periods, thermal power supply, first hydraulic power supply and second hydraulic power supply are used for supplying power; in the electricity utilization gentle time period, the firepower power supply and the second hydraulic power supply power; in the electricity low-valley period, the power is supplied by firepower;
the voltage reduction rectification filter module is used for converting 220V alternating current into direct current higher than 10V and lower than 15V;
the voltage stabilizing module is used for stably outputting 5V direct current;
the first time delay module is used for conducting in the peak period of power utilization and outputting voltage to the first control module;
the first control module is used for controlling the first hydraulic power supply to supply power when the first control module is powered on;
the second time delay module is used for conducting in the electricity utilization valley period and outputting voltage to the second control module;
the second control module is used for controlling the second hydraulic power supply to stop supplying power when the power is on;
the output end of the power supply module is connected with the input end of the voltage reduction rectification filter module, the output end of the voltage reduction rectification filter module is connected with the input end of the voltage stabilization module, the output end of the voltage stabilization module is connected with the input end of the first delay module and the second input end of the first control module, the output end of the first delay module is connected with the first input end of the first control module, the first output end of the first control module is connected with the first input end of the power supply module, the second output end of the first control module is connected with the second input end of the second control module and the input end of the second delay module, the output end of the second delay module is connected with the first input end of the second control module, and the output end of the second control module is connected with the second input end of the power supply module;
the first time delay module comprises a second timer, a fourth capacitor, a fifth capacitor, a second resistor, a third resistor, a fourth resistor, a first diode and a second diode, a No. 4 pin of the second timer is connected with the output end of the voltage stabilizing module, the other end of the second resistor is connected with the anode of a first diode, the cathode of the first diode is connected with a third resistor, the other end of the third resistor is connected with a fourth capacitor, the anode of a second diode, the anode of a second timer, the pin 2 of the second timer and the pin 6 of the second timer, the other end of the fourth capacitor is grounded, the cathode of the second diode is connected with the other end of the fourth resistor, the pin 5 of the second timer is grounded through a fifth capacitor, the pin 1 of the second timer is grounded, and the pin 3 of the second timer is connected with the first input end of the first control module;
the first control module comprises a first MOS tube, an eighth resistor, a fourth diode, a first relay, a third diode and a controlled silicon, wherein the G pole of the first MOS tube is connected with the output end of the first time delay module, the S pole of the first MOS tube is connected with the anode of the fourth diode and the control pole of the controlled silicon, the cathode of the fourth diode is grounded, the D pole of the first MOS tube is connected with the eighth resistor, the other end of the eighth resistor is connected with the anodes of the first relay and the third diode, the cathode of the third diode is connected with the other end of the first relay, the anode of the controlled silicon and the output end of the voltage stabilizing module, and the cathode of the controlled silicon is connected with the input end of the second time delay module and the second input end of the second control module;
the second delay module comprises a fifth resistor, a sixth resistor, a fifth diode, a sixth capacitor, a seventh resistor, a sixth diode, a seventh capacitor and a third timer, one end of the fifth resistor is connected with the second output end of the first control module, the other end of the fifth resistor is connected with the anode of a fifth diode, the cathode of the fifth diode is connected with a sixth resistor, the other end of the sixth resistor is connected with a sixth capacitor, the anode of the sixth diode, the pin 2 of the third timer and the pin 6 of the third timer, the other end of the sixth capacitor is grounded, the cathode of the sixth diode is connected with the other end of the seventh resistor, the pin 5 of the third timer is grounded through the seventh capacitor, the pin 1 of the third timer is grounded, and the pin 3 of the third timer is connected with the first input end of the second control module.
2. The phase-change-material-energy-storage-based power grid peak shaving system of the central air-conditioning system as claimed in claim 1, wherein the power supply module comprises a thermal power generator, a first hydraulic power supply, a second hydraulic power supply, a first switch, a second switch and a live wire, the thermal power generator is connected with the live wire, the first hydraulic power supply is connected with the live wire through the first switch, and the second hydraulic power supply is connected with the live wire through the second switch.
3. The phase change material energy storage based central air conditioning power grid peak shaving system according to claim 1, wherein the voltage reduction rectification filter module comprises a transformer, a rectifier, a first capacitor, a second capacitor and a first inductor, one end of the input end of the transformer is connected with a live wire, the other end of the input end of the transformer is connected with a zero wire, one end of the output end of the transformer is connected with pin 2 of the rectifier, the other end of the output end of the transformer is connected with pin 4 of the rectifier, pin 3 of the rectifier is connected with the first capacitor and the first inductor, pin 1 of the rectifier is connected with the other end of the first capacitor and the second capacitor, and the other end of the second capacitor is connected with the other end of the first inductor and the input end of the voltage stabilizing module.
4. The phase-change-material-energy-storage-based power grid peak regulation system of a central air conditioner is characterized in that the voltage stabilization module comprises a first resistor, a voltage stabilizer and a third capacitor, one end of the first resistor is connected with the output end of the voltage reduction rectification filter module, the other end of the first resistor is connected with the input end of the voltage stabilizer, the grounding end of the voltage stabilizer is grounded, and the output end of the voltage stabilizer is connected with the third capacitor, the input end of the first delay module and the second input end of the first control module.
5. The phase-change-material-energy-storage-based central air-conditioning power grid peak shaving system according to claim 1, wherein the second control module comprises a seventh diode, a second relay, a second MOS (metal oxide semiconductor) tube, a ninth resistor and an eighth diode, the cathode of the seventh diode is connected with the second relay and the second output end of the first control module, the anode of the seventh diode is connected with the other end of the second relay and the ninth resistor, the other end of the ninth resistor is connected with the D pole of the second MOS tube, the G pole of the second MOS tube is connected with the output end of the second delay module, the S pole of the second MOS tube is connected with the anode of the eighth diode, and the cathode of the eighth diode is grounded.
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Denomination of invention: A Peak shaving System for Central Air Conditioning Power Grid Based on Phase Change Material Energy Storage Effective date of registration: 20230822 Granted publication date: 20220415 Pledgee: Rongcheng sub branch of Postal Savings Bank of China Ltd. Pledgor: SHANDONG ZUOYAO INTELLIGENT EQUIPMENT Co.,Ltd. Registration number: Y2023980053280 |
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