CN2541986Y - Intelligent high frequency switching d.c. power source - Google Patents
Intelligent high frequency switching d.c. power source Download PDFInfo
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- CN2541986Y CN2541986Y CN02226571.6U CN02226571U CN2541986Y CN 2541986 Y CN2541986 Y CN 2541986Y CN 02226571 U CN02226571 U CN 02226571U CN 2541986 Y CN2541986 Y CN 2541986Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
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Abstract
一种智能高频开关直流电源装置，在模块式安装骨架结构的开关柜内，主要包括交流电配电单元、高频斩波器式按N+1冗余组合的充电器、蓄电池组以及直流电压的调节器顺序电连接，后台微机和智能监控器连接充电器并实现智能在线充、放电、自动保护、均流、互为备用等统一管理功能。具有接口简单、电源模块组合扩容方便，软件控制触发系统反应快，输出电源质量高，系统工作可靠性高的特点，适用于自动化电站等其它行业电气的控制操作电源。
An intelligent high-frequency switching DC power supply device, in a switch cabinet with a modular installation skeleton structure, mainly includes an AC power distribution unit, a high-frequency chopper-type charger combined with N+1 redundancy, a battery pack, and a DC voltage The regulators are electrically connected in sequence, and the background microcomputer and intelligent monitor are connected to the charger to realize unified management functions such as intelligent online charging, discharging, automatic protection, current sharing, and mutual backup. It has the characteristics of simple interface, convenient expansion of power module combination, fast response of software control trigger system, high output power quality, and high system reliability. It is suitable for electrical control and operation power supply in other industries such as automated power stations.
Description
技术领域technical field
本实用新型涉及一种电源设备，具体地说涉及一种用于无人值班变电站等变配电系统的控制操作电源的智能高频开关直流电源装置。The utility model relates to a power supply device, in particular to an intelligent high-frequency switching DC power supply device used for controlling and operating power supply of power transformation and distribution systems such as unattended substations.
技术背景technical background
目前，高频开关直流电源装置一般由高频开关直流电源模块组成的整流充电器、监控器、蓄电池组、直流电压调节器及直流馈出回路等部件组成，具有在线充电、母线电压监视及母线电压自动调节的功能，是传统可控硅直流电源的更新换代产品，中国专利(专利号：00259859.0)公开了一种新型智能高频开关直流电源，其主要包括交流电配电单元、变压器、整流滤波模块、串联式高频开关电源模块、微机监控模块和蓄电池组，串联式高频开关电源模块分为两组，一组为控制负荷提供直流电源，另一组为动力负荷和蓄电池组充电提供直流电源。其不足之处在于，电路构造设计不合理，多了变压器，模块采用串联组合，增加了中间环节，隐含故障率较高。At present, the high-frequency switching DC power supply device is generally composed of a rectifier charger composed of a high-frequency switching DC power supply module, a monitor, a battery pack, a DC voltage regulator, and a DC feed-out circuit. It has online charging, bus voltage monitoring and bus The function of voltage automatic adjustment is an updated product of the traditional thyristor DC power supply. Chinese patent (patent number: 00259859.0) discloses a new type of intelligent high-frequency switching DC power supply, which mainly includes AC power distribution unit, transformer, rectifier filter Module, series high-frequency switching power supply module, microcomputer monitoring module and battery pack, the series high-frequency switching power supply module is divided into two groups, one group provides DC power for control loads, and the other group provides DC power for power loads and battery pack charging power supply. Its shortcoming is that the design of the circuit structure is unreasonable, more transformers are added, the modules are combined in series, the intermediate links are added, and the hidden failure rate is higher.
发明内容Contents of the invention
为了克服现有技术存在的不足之处，本实用新型的目的是，提供一种智能高频开关直流电源装置，它采用全模块设计技术，集散分布控制模式，以N+1备份的电源模块组合方式，充电模块主电路采用高频开关脉宽调制式。它不仅电路结构合理，而且能够实现智能在线充、放电，软件控制触发、系统反应速度快，输出电源质量稳定可靠。In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an intelligent high-frequency switching DC power supply device, which adopts a full-module design technology, a collection and distribution control mode, and a combination of power supply modules with N+1 backup In this way, the main circuit of the charging module adopts high-frequency switching pulse width modulation. It not only has a reasonable circuit structure, but also can realize intelligent online charging and discharging, software-controlled triggering, fast system response, and stable and reliable output power quality.
本实用新型的目的是通过以下技术方案的实施来实现的：The purpose of this utility model is achieved through the implementation of the following technical solutions:
一种智能高频开关直流电源装置，在模块式安装骨架结构开关柜内，它包括：来自市网的主电源与备用电源自动进行切换互锁的配电单元，为动力负荷、控制负荷及蓄电池组提供直流电源的高频开关电源的充电器，对充电器工况实施监控的智能监控器和后台微机，以及在断电状况下可提供直流电源的蓄电池组和调节控制母线电压直流电压调节器，配电单元、充电器与蓄电池组和直流电压调节器顺序电连接，后台微机、智能监控器与充电器顺序电连接。从配电单元输出的交流电源进入由后台微机、智能监控器管理的充电器整流滤波后输出直流电，从充电器输出的直流电源一路经直流电压调节器，提供给控制母线，另一路提供给蓄电池组和动力负荷。所述的充电器由具有按N+1冗余组合的一组智能高频开关电源模块组成，智能高频开关模块由整流滤波电路顺序电连接无源填谷方式PFC升压电路、LC滤波及可控硅软启动电路、IPM功率元件、单相/三相变压器、带RC保护的桥式整流高频滤波电路，滤波及软启动电路和IPM功率元件连接CPU控制、PWM脉冲发生波和光隔式电流电压反馈电路，并由CPU管理，主电路是高频开关脉宽调制式。智能监控器是可以实现对各电源模块的控制、显示、保护等功能的集成电路板，并可以对蓄电池组实现智能充电、浮充电，在线自动周期放电、充电的管理功能。智能监控器可由后台微机通过RS232/485接口进行控制实现管理。积极效果An intelligent high-frequency switching DC power supply device, in a modular installation skeleton structure switch cabinet, it includes: a power distribution unit for automatic switching and interlocking of the main power supply from the city network and the backup power supply, serving as power loads, control loads and storage batteries A charger with a high-frequency switching power supply that provides DC power, an intelligent monitor and a background microcomputer that monitors the working conditions of the charger, a battery pack that can provide DC power in the event of a power failure, and a DC voltage regulator that regulates and controls the bus voltage , the power distribution unit, the charger are electrically connected to the battery pack and the DC voltage regulator in sequence, and the background microcomputer and the intelligent monitor are electrically connected to the charger in sequence. The AC power output from the power distribution unit enters the charger managed by the background microcomputer and intelligent monitor to rectify and filter and then output DC power. One way of the DC power output from the charger is supplied to the control bus through the DC voltage regulator, and the other is supplied to the battery. group and power load. The charger is composed of a group of intelligent high-frequency switching power supply modules with N+1 redundant combination, and the intelligent high-frequency switching module is sequentially electrically connected to a passive valley-filling PFC booster circuit, LC filter and Thyristor soft-start circuit, IPM power components, single-phase/three-phase transformers, bridge rectifier high-frequency filter circuit with RC protection, filter and soft-start circuit and IPM power components are connected to CPU control, PWM pulse generation wave and optical isolation The current and voltage feedback circuit is managed by the CPU, and the main circuit is a high-frequency switch pulse width modulation type. The intelligent monitor is an integrated circuit board that can realize functions such as control, display, and protection of each power module, and can realize intelligent charging, floating charging, and online automatic periodic discharge and charging management functions for the battery pack. The intelligent monitor can be controlled and managed by the background microcomputer through the RS232/485 interface. positive effect
本实用新型由于在充电器部分采用单相/三相软件触发控制的智能高频开关直流电源模块，无源功率因数补偿电路以及IPM功率元件模块、单相/三相PWM波功率变换器，能够适应于单相/三相交流输出，输出电源稳定度高、纹波小，且具有在线自动充电、放电的功能；电源系统各部件在后台微机和智能监控器的协调下集中控制运行，具有保护动作速度快、报警准确及时，以及具有智能判断的能力，完全适合于无人值班运行。Because the utility model adopts the single-phase/three-phase software trigger-controlled intelligent high-frequency switching DC power supply module, the passive power factor compensation circuit, the IPM power element module, and the single-phase/three-phase PWM wave power converter in the charger part, it can Adapted to single-phase/three-phase AC output, the output power supply has high stability, small ripple, and has the function of online automatic charging and discharging; all components of the power supply system are controlled and operated under the coordination of the background microcomputer and intelligent monitor, with protection The action speed is fast, the alarm is accurate and timely, and it has the ability of intelligent judgment, which is completely suitable for unattended operation.
以下结合附图和实施例对本实用新型做进一步说明。Below in conjunction with accompanying drawing and embodiment the utility model is described further.
附图说明Description of drawings
图1是本实用新型电路构造原理方框示意图。Fig. 1 is a schematic block diagram of the circuit structure principle of the utility model.
图2是本实用新型第一个实施例中智能高频开关直流电源模块电路构造方框示意图。Fig. 2 is a schematic block diagram of the circuit structure of the intelligent high-frequency switching DC power supply module in the first embodiment of the present invention.
图3是本实用新型第一个实施例中智能高频开关直流电源模块电路构造图。Fig. 3 is a circuit diagram of the intelligent high-frequency switching DC power supply module in the first embodiment of the utility model.
在图1中，一种智能高频开关直流电源装置，在模块式安装骨架结构(如PK屏)的开关柜内，包括能使来自市电的主电源与备用电源自动进行切换互锁的配电单元，为动力负荷、控制负荷及蓄电池组提供直流电源的高频开关电源模块式充电器，对充电器工况实施监控的后台微机和智能监控器，以及在断电状况下可提供直流电源的蓄电池组和调节控制负荷电压的直流电压调节器。配电单元、充电器与蓄电池组和直流电压调节器顺序电连接，后台微机、智能监控器与充电器顺序电连接。从配电单元输出交流电进入由后台微机、智能监控器管理的充电器整形滤波后输出直流电，从充电器输出的直流电一路经直流电压调节器提供给控制母线，另一路提供给蓄电池组和动力负荷。微机与智能监控器通过RS232或RS485接口通讯，所述的充电器由具有按N+1冗余组合的一组智能高频开关电源模块组成。在图2中，智能高频开关模块由整流滤波电路顺序连接无源填谷方式PFC升压电路、LC滤波及可控硅软启动电路、IPM功率元件、三相/单相变压器、带RC保护的桥式整流高频滤波电路，滤波及软启动电路和IPM功率元件连接CPU控制、PWM脉冲发生波和光隔式电流电压反馈电路，并由CPU管理，主电路是高频开关脉宽调制式。单片机CPU是N80C196MD，IPM功率元件是PM75CSA120，二极管D12、D13、D14，电阻R33，电容C37、C39集合连接构成桥式无源填谷方式PFC升压电路。当输入电压高于C37、C39上的电压时，两个电容处于串联充电状态，当输入电压低于C37、C39上的电压时，两个电容处于并联放电状态，从而构成了填谷方式的PFC整流回路，达到了功率因数补偿的功效。In Figure 1, an intelligent high-frequency switching DC power supply device, in a switch cabinet with a modular installation frame structure (such as a PK screen), includes a distribution box that can automatically switch and interlock the main power supply from the mains and the backup power supply. Power unit, a high-frequency switching power supply modular charger that provides DC power for power loads, control loads and battery packs, a background microcomputer and an intelligent monitor for monitoring the working conditions of the charger, and DC power supply in the event of a power failure battery pack and a DC voltage regulator that regulates and controls the load voltage. The power distribution unit, the charger are electrically connected to the battery pack and the DC voltage regulator in sequence, and the background microcomputer and the intelligent monitor are electrically connected to the charger in sequence. The AC output from the power distribution unit enters the charger managed by the background microcomputer and intelligent monitor, and then outputs DC after shaping and filtering. One of the DC outputs from the charger is supplied to the control bus through the DC voltage regulator, and the other is supplied to the battery pack and power load. . The microcomputer communicates with the intelligent monitor through the RS232 or RS485 interface, and the charger is composed of a group of intelligent high-frequency switching power supply modules with N+1 redundant combination. In Figure 2, the intelligent high-frequency switch module is sequentially connected by a rectifier and filter circuit to a passive valley-filling PFC boost circuit, LC filter and SCR soft-start circuit, IPM power components, three-phase/single-phase transformer, and RC protection Bridge rectifier high-frequency filter circuit, filter and soft-start circuit and IPM power components are connected to CPU control, PWM pulse generation wave and optical isolation current and voltage feedback circuit, and are managed by CPU. The main circuit is high-frequency switch pulse width modulation. The single-chip CPU is N80C196MD, the IPM power element is PM75CSA120, diodes D12, D13, D14, resistor R33, capacitors C37, C39 are collectively connected to form a bridge-type passive valley-filling PFC boost circuit. When the input voltage is higher than the voltage on C37 and C39, the two capacitors are charged in series, and when the input voltage is lower than the voltage on C37 and C39, the two capacitors are discharged in parallel, thus forming a valley-filling PFC The rectifier circuit achieves the effect of power factor compensation.
如图3所示的智能高频开关直流电源模块原理图中，交流电源通过EMI高频滤波后整流，直流滤波、功率因数补偿、降压启动，进入IPM的P、N两极，另一方面单相/三相触发脉冲由监控CPU输出经过六个TLP250光隔进入IPM控制端，同时，IPM的故障、报警信号通过四个TLP521光隔返回给CPU，IPM的U、V端或U、V、W端输出单相或三相高压PWM波，通过隔直电容、单相/三相高频变压器，整流滤波输出直流电。In the schematic diagram of the intelligent high-frequency switching DC power supply module shown in Figure 3, the AC power is rectified after EMI high-frequency filtering, DC filtering, power factor compensation, step-down startup, and enters the P and N poles of the IPM. The phase/three-phase trigger pulse is output by the monitoring CPU and enters the IPM control terminal through six TLP250 optical isolations. At the same time, the fault and alarm signals of IPM are returned to the CPU through four TLP521 optical isolations. The U, V terminals of IPM or U, V, The W terminal outputs single-phase or three-phase high-voltage PWM waves, and rectifies and filters output DC through DC blocking capacitors and single-phase/three-phase high-frequency transformers.
工作过程，如图1所示，正常情况下外电输入两路：交流电源和备用电源，两路电源连接到输入交流母线，再由交流母线连接至高频开关电源充电器，充电器在监控的控制下对蓄电池进行自动充电及浮充电，从蓄电池的两端输出直流电压至直流电压调节器，再至直流母线，直流母线连接馈出回路形成直流输出，蓄电池自动放电时，智能监控器控制充电器的输出端电压略低于蓄电池的端电压以保证蓄电池按“经常性”负荷恒流放电，蓄电池端电压达到终止电压时，充电器在监控器的控制下又进入正常在线充电。The working process is shown in Figure 1. Under normal circumstances, there are two external power inputs: AC power and backup power. The two power sources are connected to the input AC bus, and then the AC bus is connected to the high-frequency switching power supply charger. The charger is monitoring Under control, the battery is automatically charged and float charged, and the DC voltage is output from both ends of the battery to the DC voltage regulator and then to the DC bus. The DC bus is connected to the feed-out circuit to form a DC output. When the battery is automatically discharged, the intelligent monitor controls the charging. The output terminal voltage of the charger is slightly lower than the terminal voltage of the battery to ensure that the battery is discharged according to the "regular" load constant current. When the terminal voltage of the battery reaches the cut-off voltage, the charger enters normal online charging under the control of the monitor.
本实用新型的结构不限于实施例所描述的结构形式。The structure of the utility model is not limited to the structural forms described in the embodiments.
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| CN102843052A (en) * | 2012-09-18 | 2012-12-26 | 江苏省电力公司洪泽县供电公司 | Rectification module of intelligent high frequency switch power supply |
| CN102857122A (en) * | 2011-08-11 | 2013-01-02 | 南通天华和睿科技创业有限公司 | Novel rectifier module |
| CN103199596A (en) * | 2012-01-06 | 2013-07-10 | 鸿富锦精密工业（深圳）有限公司 | Battery charge-discharge system and battery charge-discharge method |
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| CN104467170A (en) * | 2014-12-31 | 2015-03-25 | 苏州市龙源电力科技股份有限公司 | Intelligent high-frequency switch microcomputer direct-current power cabinet control system |
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| CN108270348A (en) * | 2018-02-28 | 2018-07-10 | 深圳市鼎硕同邦科技有限公司 | The direct current output low-frequency ripple suppression circuit and its control method of digital charge machine |
| CN108270347A (en) * | 2018-02-28 | 2018-07-10 | 深圳市鼎硕同邦科技有限公司 | The direct current output low-frequency ripple compensation circuit and its control method of digital charge machine |
| CN109100971A (en) * | 2018-08-20 | 2018-12-28 | 合肥华耀电子工业有限公司 | A kind of switching on and shutting down sequential control circuit with interlock function |
| CN110247472A (en) * | 2019-07-17 | 2019-09-17 | 珠海格力电器股份有限公司 | Power supply device, method and equipment |
| CN114136376A (en) * | 2021-11-30 | 2022-03-04 | 国网宁夏电力有限公司电力科学研究院 | Switchgear monitoring system based on temperature sensor fusion application |
-
2002
- 2002-04-03 CN CN02226571.6U patent/CN2541986Y/en not_active Expired - Fee Related
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| CN100346551C (en) * | 2005-03-22 | 2007-10-31 | 浙江大学 | Modular Parallel Digital Control Power Harmonic Active Suppression Method |
| CN102857122A (en) * | 2011-08-11 | 2013-01-02 | 南通天华和睿科技创业有限公司 | Novel rectifier module |
| CN103199596A (en) * | 2012-01-06 | 2013-07-10 | 鸿富锦精密工业（深圳）有限公司 | Battery charge-discharge system and battery charge-discharge method |
| CN102843052A (en) * | 2012-09-18 | 2012-12-26 | 江苏省电力公司洪泽县供电公司 | Rectification module of intelligent high frequency switch power supply |
| CN104467168A (en) * | 2014-12-26 | 2015-03-25 | 苏州市龙源电力科技股份有限公司 | Intelligent direct-current power cabinet |
| CN104578283A (en) * | 2014-12-29 | 2015-04-29 | 苏州市龙源电力科技股份有限公司 | Direct-current power supply cabinet adopting high-frequency switch |
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| CN107612138A (en) * | 2017-09-21 | 2018-01-19 | 国网浙江省电力公司电力科学研究院 | A kind of low-voltage direct-current system |
| CN108270348A (en) * | 2018-02-28 | 2018-07-10 | 深圳市鼎硕同邦科技有限公司 | The direct current output low-frequency ripple suppression circuit and its control method of digital charge machine |
| CN108270347A (en) * | 2018-02-28 | 2018-07-10 | 深圳市鼎硕同邦科技有限公司 | The direct current output low-frequency ripple compensation circuit and its control method of digital charge machine |
| CN108270347B (en) * | 2018-02-28 | 2024-03-05 | 深圳市鼎硕同邦科技有限公司 | DC output low-frequency ripple compensation circuit of digital charger and control method thereof |
| CN108270348B (en) * | 2018-02-28 | 2024-03-08 | 深圳市鼎硕同邦科技有限公司 | Direct-current output low-frequency ripple suppression circuit of digital charger and control method thereof |
| CN109100971A (en) * | 2018-08-20 | 2018-12-28 | 合肥华耀电子工业有限公司 | A kind of switching on and shutting down sequential control circuit with interlock function |
| CN109100971B (en) * | 2018-08-20 | 2024-02-09 | 合肥华耀电子工业有限公司 | On-off time sequence control circuit with interlocking function |
| CN110247472A (en) * | 2019-07-17 | 2019-09-17 | 珠海格力电器股份有限公司 | Power supply device, method and equipment |
| CN114136376A (en) * | 2021-11-30 | 2022-03-04 | 国网宁夏电力有限公司电力科学研究院 | Switchgear monitoring system based on temperature sensor fusion application |
| CN114136376B (en) * | 2021-11-30 | 2024-06-04 | 国网宁夏电力有限公司电力科学研究院 | Switching equipment monitoring system based on temperature sensor fusion application |
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