CN110864687A - Phase-change energy storage inertia system - Google Patents
Phase-change energy storage inertia system Download PDFInfo
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- CN110864687A CN110864687A CN201911149553.2A CN201911149553A CN110864687A CN 110864687 A CN110864687 A CN 110864687A CN 201911149553 A CN201911149553 A CN 201911149553A CN 110864687 A CN110864687 A CN 110864687A
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- phase change
- energy storage
- inertial
- change material
- material layer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
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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
- H02J15/00—Systems for storing electric energy
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- Radar, Positioning & Navigation (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
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Abstract
The invention relates to a phase change energy storage inertial system, which comprises a case, an inertial element assembly, a phase change material layer, an electric heating unit, an energy storage control circuit and a power supply conversion module, wherein the phase change material layer is wrapped around the inertial element assembly to provide a heat preservation environment for the inertial element assembly, the electric heating unit and a temperature sensor are arranged around and in the phase change material layer, the electric heating unit and the temperature sensor are connected to the energy storage control circuit, and the energy storage control circuit is connected with the power supply conversion module. According to the phase change energy storage inertial system, a stable temperature environment is provided for an inertial element of the inertial system through a phase change energy storage technology, so that the inertial element is always kept in a stable temperature environment in the whole process of a task, the adverse effect of temperature compensation model errors and inertial element hysteresis errors on high-precision measurement is eliminated, the measurement precision is improved, a temperature compensation link is omitted, the debugging time is greatly shortened, the requirement of the full-temperature index of the inertial element is reduced, and the utilization rate of the inertial element is improved.
Description
Technical Field
The invention relates to the technical field of inertial navigation, in particular to a phase-change energy storage inertial system.
Background
In inertial systems, the inertial element is the key to achieving high precision measurements. The conventional high-precision inertial system has short starting time, short time from system starting to high-precision measurement, and incapability of achieving thermal balance of an inertial element, and usually adopts a temperature compensation mode for error compensation, but the temperature compensation mode has temperature compensation model errors, so that the highest precision of the inertial element is difficult to effectively exert. Therefore, in order to achieve high-precision measurement, it is necessary to provide a temperature stable environment for the inertial element.
Disclosure of Invention
The invention aims to overcome the defect of contradiction between quick start and high-precision measurement of an inertial system in the prior art, and provides a phase-change energy storage inertial system which provides a stable temperature environment for an inertial element of the inertial system through phase-change energy storage and meets the requirements of quick start and high-precision measurement in use.
The technical problem to be solved by the invention is realized by the following technical scheme:
the utility model provides a phase change energy storage inertial system, includes quick-witted case, inertial element assembly, its characterized in that: the phase change material layer wraps around the inertia element assembly to provide a heat preservation environment, the electric heating unit and the temperature sensor are arranged around the phase change material layer and inside the phase change material layer, the electric heating unit and the temperature sensor are connected to the energy storage control circuit, and the energy storage control circuit is connected with the power conversion module.
And an inertia element is arranged in the inertia element assembly, the inertia element is a gyroscope or an accelerometer, and a resolving circuit is used for realizing high-precision angle and speed measurement, and the inertia element is connected with a temperature sensor which is connected to an energy storage control circuit.
Furthermore, the electric heating unit is an electric heating sheet uniformly arranged around the phase change material layer, preferably a flexible electric heating sheet.
Moreover, the phase change material layer is an energy storage and heat release material, a phase change material with the temperature of 30-80 ℃ is selected, and a high-molecular solid-solid phase change material is preferred.
Moreover, the temperature sensor is a PT1000 thermistor.
Furthermore, the power conversion module is connected to an external DC24V DC power source to convert it to a power source that functions as a power storage control circuit and inertia assembly, preferably an isolated DC-DC conversion module.
The external DC24V direct-current power supply comprises a direct-current generator and a storage battery connected in parallel, wherein the direct-current generator is preferably a diesel direct-current generator, and the storage battery is preferably a lead-acid storage battery.
The invention has the advantages and beneficial effects that:
according to the phase change energy storage inertial system, a stable temperature environment is provided for an inertial element of the inertial system through a phase change energy storage technology, so that the inertial element is always kept in a stable temperature environment in the whole process of a task, the adverse effect of temperature compensation model errors and inertial element hysteresis errors on high-precision measurement is eliminated, the measurement precision is improved, a temperature compensation link is omitted, the debugging time is greatly shortened, the requirement of the full-temperature index of the inertial element is reduced, and the utilization rate of the inertial element is improved.
Drawings
FIG. 1 is a schematic structural diagram of a phase change energy storage inertial system according to the present invention;
fig. 2 is a flow chart of the operation of the phase change energy storage inertial system of the present invention.
Description of the reference numerals
The device comprises a case 1, an inertial element assembly 2, a phase change material layer 3, an electric heating unit 4, an energy storage control circuit 5 and a power supply conversion module 6.
Detailed Description
The present invention is further illustrated by the following specific examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
The utility model provides a phase transition energy storage inertial system, as shown in figure 1, including quick-witted case 1, inertia element assembly 2, it still includes phase change material layer 3, electrical heating unit 4, energy storage control circuit 5, power conversion module 6, phase change material layer parcel is around inertia element assembly, for it provides the heat preservation environment, sets up electrical heating unit and temperature sensor around the phase change material layer with inside, electrical heating unit and temperature sensor are connected to the energy storage control circuit, energy storage control circuit connection power conversion module. Install the inertial element in the inertial element sub-assembly, the inertial element is gyroscope or accelerometer and solves the circuit for realize high accuracy angle, speed measurement, the inertial element all is connected with temperature sensor, and this temperature sensor is connected to the energy storage control circuit. The electric heating unit is an electric heating sheet which is uniformly arranged around the phase change material layer, and a flexible electric heating sheet is preferred. The phase change material layer is an energy storage and heat release material, the phase change material with the temperature of 30-80 ℃ is selected, and a high polymer solid-solid phase change material is preferably selected. The temperature sensor is a PT1000 thermistor.
The power conversion module is connected to an external DC24V DC power source and converts it to a power source that functions as a power storage control circuit and inertia assembly, preferably an isolated DC-DC conversion module. The energy storage control circuit controls the heating of the phase-change material electric heating unit to realize the temperature control of +/-0.2 ℃, and preferably adopts a temperature control method of controlling the PWM duty ratio by adopting a PI algorithm. The external DC24V direct-current power supply comprises a direct-current generator and a storage battery connected in parallel, wherein the direct-current generator is preferably a diesel direct-current generator, and the storage battery is preferably a lead-acid storage battery.
The working process of the phase change energy storage inertial system is shown in fig. 2:
1) the carrier power supply system supplies power to the inertia system, and the inertia system is started and works normally;
2) the phase-change material layer stores energy, the carrier power supply system increases the power supply current, the inertia system works, and the energy storage time is shortened;
3) after the phase change energy storage material finishes storing energy, the temperature of the inertia element reaches the required temperature, preferably 50 ℃;
4) the inertial system is powered off;
5) the storage battery of the carrier power supply system provides necessary heat preservation current;
6) the phase change material layer releases heat, provides a stable temperature environment for the inertia element, and reduces the requirement on heat preservation current.
The inertia system is provided with a high-power supply by a power supply system of the carrier, the power supply system of the carrier stops working after the inertia system works, and a storage battery which is equipped for the inertia system provides a power supply for heat preservation. The phase change energy storage material has high enthalpy value and strong energy storage capacity, when a carrier power supply system works, electric energy is converted into heat energy and then stored, when the carrier power supply system stops working, a storage battery provided for an inertia system provides a heat preservation power supply, so that an inertia element is always kept in a stable environment, the phase change energy storage material releases heat, the temperature reduction speed of the inertia element of the inertia system is effectively reduced, and the time for providing heat preservation current for the storage battery provided for the inertia system is prolonged.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (7)
1. The utility model provides a phase change energy storage inertial system, includes quick-witted case, inertial element assembly, its characterized in that: the phase change material layer wraps around the inertia element assembly to provide a heat preservation environment, the electric heating unit and the temperature sensor are arranged around the phase change material layer and inside the phase change material layer, the electric heating unit and the temperature sensor are connected to the energy storage control circuit, and the energy storage control circuit is connected with the power conversion module.
2. The phase change energy storage inertial system of claim 1, wherein: the inertia element is installed in the inertia element assembly, the inertia elements are gyroscopes or accelerometers and a resolving circuit and used for achieving high-precision angle and speed measurement, the inertia elements are connected with temperature sensors, and the temperature sensors are connected to an energy storage control circuit.
3. The phase change energy storage inertial system of claim 1, wherein: the electric heating units are electric heating sheets which are uniformly arranged around the phase change material layer, and flexible electric heating sheets are preferably selected.
4. The phase change energy storage inertial system of claim 1, wherein: the phase change material layer is an energy storage and heat release material, a phase change material with the temperature of 30-80 ℃ is selected, and a high polymer solid-solid phase change material is preferably selected.
5. The phase change energy storage inertial system of claim 1, wherein: the temperature sensor is a PT1000 thermistor.
6. The phase change energy storage inertial system of claim 1, wherein: the power conversion module is connected to an external DC24V DC power source to convert it to a power source that functions as an energy storage control circuit and inertia assembly, preferably an isolated DC-DC conversion module.
7. The phase change energy storage inertial system of claim 6, wherein: the external DC24V direct-current power supply comprises a direct-current generator and a storage battery connected in parallel, the direct-current generator is preferably a diesel direct-current generator, and the storage battery is preferably a lead-acid storage battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911149553.2A CN110864687A (en) | 2019-11-21 | 2019-11-21 | Phase-change energy storage inertia system |
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| CN201911149553.2A CN110864687A (en) | 2019-11-21 | 2019-11-21 | Phase-change energy storage inertia system |
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| CN110864687A true CN110864687A (en) | 2020-03-06 |
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Citations (10)
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| CN202728910U (en) * | 2012-08-21 | 2013-02-13 | 北京国电通网络技术有限公司 | Storage battery heat preservation box |
| CN103412592A (en) * | 2013-07-26 | 2013-11-27 | 北京航天控制仪器研究所 | Three-level temperature control system of inertia measurement system |
| CN106767799A (en) * | 2016-11-23 | 2017-05-31 | 北京航天控制仪器研究所 | A kind of temperature control system of inexpensive micro-mechanical inertia measurement combination |
| CN108448199A (en) * | 2018-02-06 | 2018-08-24 | 上海理工大学 | A kind of power battery low temperature assisted heating device based on phase-change thermal storage |
| CN109470273A (en) * | 2018-12-14 | 2019-03-15 | 中国船舶重工集团公司第七0七研究所 | Strapdown inertial navigation system inertance element dismounts non-calibrating method |
| CN109638889A (en) * | 2019-01-15 | 2019-04-16 | 广东志成冠军集团有限公司 | The DC side inertia that island bavin stores up mixed power supply system enhances control method |
| CN209374504U (en) * | 2018-10-18 | 2019-09-10 | 瞿志刚 | A kind of automobile batteries heat management system with temperature-uniforming plate |
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2019
- 2019-11-21 CN CN201911149553.2A patent/CN110864687A/en active Pending
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| CN101701825A (en) * | 2009-09-28 | 2010-05-05 | 龙兴武 | High-precision laser gyroscope single-shaft rotating inertial navigation system |
| CN202004058U (en) * | 2009-10-19 | 2011-10-05 | 张颖 | Base station battery cabinet adopting PCM |
| CN202728910U (en) * | 2012-08-21 | 2013-02-13 | 北京国电通网络技术有限公司 | Storage battery heat preservation box |
| CN103412592A (en) * | 2013-07-26 | 2013-11-27 | 北京航天控制仪器研究所 | Three-level temperature control system of inertia measurement system |
| CN106767799A (en) * | 2016-11-23 | 2017-05-31 | 北京航天控制仪器研究所 | A kind of temperature control system of inexpensive micro-mechanical inertia measurement combination |
| CN108448199A (en) * | 2018-02-06 | 2018-08-24 | 上海理工大学 | A kind of power battery low temperature assisted heating device based on phase-change thermal storage |
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