WO2010066107A1 - Système de commande d'une alimentation à courant alternatif hybride pour station de base de communication - Google Patents

Système de commande d'une alimentation à courant alternatif hybride pour station de base de communication Download PDF

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Publication number
WO2010066107A1
WO2010066107A1 PCT/CN2009/001402 CN2009001402W WO2010066107A1 WO 2010066107 A1 WO2010066107 A1 WO 2010066107A1 CN 2009001402 W CN2009001402 W CN 2009001402W WO 2010066107 A1 WO2010066107 A1 WO 2010066107A1
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WO
WIPO (PCT)
Prior art keywords
converter
battery pack
engine
voltage
current sensor
Prior art date
Application number
PCT/CN2009/001402
Other languages
English (en)
Chinese (zh)
Inventor
肖亨琳
Original Assignee
无锡开普动力有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 无锡开普动力有限公司 filed Critical 无锡开普动力有限公司
Publication of WO2010066107A1 publication Critical patent/WO2010066107A1/fr

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Classifications

    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering

Definitions

  • the present invention relates to a hybrid AC power supply control system for a communication base station, and more particularly to an AC power supply system having a short-term overload capability.
  • the communication base station can also operate normally when the utility power is cut off, and the communication base station is equipped with an emergency power source such as an internal combustion generator set.
  • the power-consuming equipment of the communication base station includes some auxiliary equipment such as an inductive load such as an air conditioner, in addition to a communication device that operates for a long period of time and low power.
  • an inductive load such as an air conditioner
  • the inductive load can only be used with a load equivalent to about 1/3 of the rated value of the engine-driven generator.
  • only high-power generator sets can be equipped.
  • the communication equipment is a load that operates for a long time with low power.
  • the communication equipment load is low, for example, at night, the workload is greatly reduced compared to daytime, so that the power supply required by the communication equipment is also greatly reduced.
  • the generator set needs to continuously operate at a fixed speed, and its fuel consumption and rated power are basically equal, which causes waste of energy. Summary of the invention
  • An object of the present invention is to overcome the above-mentioned deficiencies and to provide a hybrid AC power supply control system for a communication base station capable of driving an inductive load of equal power and saving energy when the power consumption of the communication device is reduced.
  • a hybrid AC power supply control system for a communication base station includes an engine and a permanent magnet generator, and is characterized by: the engine, the battery pack, the AC-DC converter, the DC-DC converter, The DC-AC converter and the first current sensor are respectively connected to the main controller, the battery pack is connected to the DC-DC converter, the DC-DC converter is connected to the DC-AC converter, and the engine is connected to the permanent magnet generator.
  • the permanent magnet generator is connected to the AC-DC converter, the AC-DC converter is connected to the DC-AC converter, and the DC-AC converter is connected to the powered device through the first current sensor;
  • the main controller separately collects signals of the first current sensor, the battery pack, the DC-DC converter, the AC-DC converter, and the DC-AC converter, and performs reasonable power distribution through the collected signals;
  • the engine drives a permanent magnet generator, the DC voltage of the permanent magnet generator is converted by the AC-DC conversion, and the DC voltage of the battery pack is boosted by the DC-DC converter, and the DC voltages are converted by DC-AC. After being converted into alternating current, the device is connected to the powered device;
  • the AC-DC converter performs controllable rectification on the output of the permanent magnet generator, and controls the rectified voltage by controlling the conduction angle of the thyristor;
  • the DC-DC converter boosts the voltage of the battery pack and outputs the boosted DC voltage to the output side of the AC-DC converter;
  • the DC on the output side of the AC-DC converter is charged to the battery pack through a DC-DC converter.
  • the DC-DC converter is a bidirectional DC converter.
  • the invention is jointly powered by a generator set and a battery pack, and can provide twice the rated power for a short time to start an inductive load without using a high power generator set.
  • the invention provides three working modes, wherein the main controller performs intelligent switching of three working modes, and the main controller controls the corresponding rotating speed of the engine according to the magnitude of the load power, and supplements the battery by intermittently running the engine power according to the battery pack power.
  • the amount of electricity According to the above three characteristics of intelligent switching, changing the speed and intermittent operation, the generator set saves more than 20% of fuel compared with the conventional fixed speed synchronous generator, saving fuel.
  • the invention detects the power of the battery pack by the main controller, and the battery pack is not in excessive discharge and excessive charging, thereby prolonging the service life of the battery pack.
  • the main controller controls the corresponding engine speed according to the magnitude of the load power, so that the engine is not always in the high-speed moving state, which can reduce the noise of the generator set.
  • Figure 1 is a schematic block diagram of the structure of the present invention.
  • FIG. 2 is a schematic block diagram of a main controller in the present invention.
  • Figure 3 is a schematic block diagram of an engine controller in the present invention.
  • FIG. 1 and FIG. 2 it includes an engine 1, a permanent magnet generator 2, a battery pack 3, a DC-DC converter 4, an AC-DC converter 5, a DC-AC converter 6, a power device 7, and a main unit.
  • Controller 8 chip model XC164CM
  • first current sensor 9 second current sensor 10
  • third current sensor 11 AC voltage 12, DC voltage 13, LCD display and user operation button 14
  • engine 15 the battery pack temperature sensor 16, the battery pack current sensor 17, the Fenton 3's pressure sensor 18, and the EEP-ROM hold data 19.
  • Power equipment 7 Mainly includes battery charger, base station air conditioner, base station communication power module (model: ADC-4850) and lighting.
  • the generator 2 of the present invention is a three-phase multi-pole permanent magnet generator, and the generator 2 is connected to the engine 1.
  • the engine 1, the battery pack 3, the AC-DC converter 5, the DC-DC converter 4, the DC-AC converter 6, and the first current sensor 9 are respectively connected to the main controller 8, and the battery pack 3 is connected.
  • DC-DC converter 4, DC-DC converter 4 is connected to DC-AC converter 6, engine 1 is connected to permanent magnet generator 2, permanent magnet generator 2 is connected to AC-DC converter 5, AC-DC converter 5 is connected to the DC-AC converter 6, which is connected to the consumer 7 via the first current sensor 9.
  • the engine 1 drives a permanent magnet generator 2, a DC voltage converted by the permanent magnet generator 2 via the AC-DC converter 5, and a DC voltage boosted by the DC-DC converter 4 of the battery pack 3, which are DC The voltage is converted to AC power by the DC-AC converter 6, and then connected to the electric device 7.
  • the AC-DC converter 5 performs controllable rectification on the output of the permanent magnet generator 2, and controls the rectified voltage by controlling the conduction angle of the thyristor;
  • the DC-DC converter 4 is a bidirectional DC converter, The voltage of the battery pack 3 is boosted, and the boosted DC voltage is output to the output side of the AC-DC converter 5; the DC of the output side of the AC-DC converter 5 is passed through the DC-DC converter 4 to the battery pack 3. Charge it.
  • the DC-DC converter 4 stops acquiring the output from the battery pack 3.
  • the DC-AC converter 6 is a DC inverter AC inverter, which adopts SPWM modulation technology and inductive filtering technology to convert DC power into 50HZ AC power, and generates a sine wave with less than 3% distortion, which can meet the high requirement AC power supply.
  • Quality electrical equipment 7 Capacitive or inductive loads are 1.2 to 1.5 times more common than conventional synchronous generators.
  • the main controller 8 is a microcomputer controller chip model XC164CM, and collects signals of the current sensor 9, the battery pack 3, the DC-DC converter 4, the AC-DC converter 5, and the DC-AC converter 6. A reasonable power distribution is performed by the signals collected above.
  • the main controller 8 is respectively connected to the first current sensor 9, the second current sensor 10, the third current sensor 11, the alternating current voltage 12, the direct current voltage 13, the LCD display and the user operation button 14, and the engine control through the wires.
  • the battery 15, the battery pack temperature sensor 16, the battery pack current sensor 17, the battery pack voltage sensor 18, and the EEP-ROM save data 19 are connected.
  • the main controller 8 communicates with the engine controller through CAN or RS485 communication The letter thus controls the operation of the engine 1.
  • the main controller 8 detects the amount of electric power of the battery pack 3. When the electric quantity of the battery pack 3 is lower than the minimum value, the generator 2 is automatically activated to charge the battery pack 3.
  • the engine controller 15 is electrically connected to the fuel amount sensor 15-2, the oil pressure sensor 15-3, the oil temperature sensor 15-4, and the water temperature sensor 15-5 by a chip (model ATmega8L) 15-1.
  • the rotational speed sensor 15-6, the starter motor relay 15-7, the stop relay 15-8, the CAN communication 15-9, and the stepping motor M1 that controls the engine speed are connected to control the operation of the engine 2.
  • the main controller 8 of the present invention detects the power of the powered device 7 through the first current sensor 9, and provides three operating modes according to the power of the powered device 7:
  • Low-power power supply mode The battery pack 3 passes through the DC-DC converter 4, and the power supply is boosted to the DC-AC converter. 6 is converted into an AC power source, which is called a battery pack power supply route.
  • the permanent magnet generator 2 is driven by the engine 1 to generate alternating current, which is converted into direct current by the AC-DC converter 5, and sent to the DC-AC converter 6 to be converted into an alternating current power source, which is called a power supply route of the generator set.
  • Super power supply mode The above battery pack power supply route plus the above-mentioned generator set power supply route, according to the maximum allowable discharge current of the battery pack 3, provides the maximum output power.
  • the maximum output power of the DC-DC converter 4 is P1
  • the power of the powered device is P2.
  • the maximum output power of the DC-DC converter 4 is shown in Table 1. According to this relational table operation, the inductive load that is started for a short time can be satisfied, and the DC-DC converter 4 can be surely operated for a long time.
  • the main controller 8 and the collected power of the powered device 7 are based on the values of P0 and P1 described above, The specific work is as follows:
  • the main controller 8 commands the genset rated power P0 and the DC-DC converter 4 output power P1 to simultaneously supply the power device 7 power P2 to meet the power device. 7 power P2 requirements. For example, when the communication base station enables the air conditioner, the rated power P0 of the genset and the output power P1 of the DC-DC converter 4 are simultaneously supplied to the air conditioner to start. After the startup is successful, the power required by the air conditioner will decrease, and the output of the DC-DC converter 4 is turned off. The power Pl is supplied by the genset rated power P0.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

L'invention concerne un système de commande d'une alimentation à courant alternatif hybride destiné à une station de base de communication et comprenant un moteur (1) et un générateur à aimant permanent (2). Le moteur (1), un accumulateur (3), un convertisseur c.a.-c.c. (5), un convertisseur c.c.-c.c. (4) et un convertisseur c.c.-c.a. (6), ainsi qu'un premier détecteur de courant (9) sont raccordés respectivement à un contrôleur principal (8). L'accumulateur (3) est raccordé au convertisseur c.c.-c.c. (4). Le convertisseur c.c.-c.c. (4) est raccordé au convertisseur c.c.-c.a. (6). Le moteur (1) est raccordé au générateur (2). Le générateur (2) est raccordé au convertisseur c.a.-c.c. (5). Le convertisseur c.a.-c.c. (5) est raccordé au convertisseur c.c.-c.a. (6). Le convertisseur c.c.-c.a. (6) est raccordé à l'équipement électrique (7) via le premier détecteur de courant (9).
PCT/CN2009/001402 2008-12-12 2009-12-09 Système de commande d'une alimentation à courant alternatif hybride pour station de base de communication WO2010066107A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810244162.4 2008-12-12
CNA2008102441624A CN101447687A (zh) 2008-12-12 2008-12-12 通信基站用混合交流供电电源控制系统

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WO2010066107A1 true WO2010066107A1 (fr) 2010-06-17

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CN (1) CN101447687A (fr)
WO (1) WO2010066107A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104444806A (zh) * 2014-12-05 2015-03-25 深圳市安顺节能科技发展有限公司 一种起重机势能回收循环利用双动力系统

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101447687A (zh) * 2008-12-12 2009-06-03 无锡开普动力有限公司 通信基站用混合交流供电电源控制系统
CN103314643B (zh) * 2010-12-30 2015-01-28 奇胜澳大利亚有限公司 用于对负载的输出进行可控调光的装置和方法
CN102510255A (zh) * 2011-11-04 2012-06-20 上海科泰电源股份有限公司 一种通信基站的变频节能柴油发电机组
US9425727B2 (en) * 2012-04-17 2016-08-23 Kohler Co. Charging an energy storage device with a variable speed generator
US20140156099A1 (en) 2012-12-05 2014-06-05 Cummins Power Generation, Inc. Generator power systems with active and passive rectifiers
CN103312004B (zh) * 2013-06-27 2015-05-20 上海科泰电源股份有限公司 一种通信基站的智能油电混合电源系统
CN105846530B (zh) * 2016-05-16 2018-06-15 福建亚南电机有限公司 一种基于触摸屏一体机的发电机组控制装置
CN109298346B (zh) * 2018-10-09 2019-10-01 浙江大学 一种新能源汽车三电系统健康状态在线诊断系统和诊断方法
CN112134338A (zh) * 2019-06-24 2020-12-25 重庆宗申通用动力机械有限公司 直流发电机组自动启停控制系统

Citations (3)

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US5563802A (en) * 1994-01-26 1996-10-08 Onan Corporation Generator power system and method
CN1846338A (zh) * 2003-09-04 2006-10-11 本田技研工业株式会社 电源装置
CN101447687A (zh) * 2008-12-12 2009-06-03 无锡开普动力有限公司 通信基站用混合交流供电电源控制系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5563802A (en) * 1994-01-26 1996-10-08 Onan Corporation Generator power system and method
CN1846338A (zh) * 2003-09-04 2006-10-11 本田技研工业株式会社 电源装置
CN101447687A (zh) * 2008-12-12 2009-06-03 无锡开普动力有限公司 通信基站用混合交流供电电源控制系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104444806A (zh) * 2014-12-05 2015-03-25 深圳市安顺节能科技发展有限公司 一种起重机势能回收循环利用双动力系统

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