CN1731648A - High voltage reactive-load compensation complete equipment - Google Patents

High voltage reactive-load compensation complete equipment Download PDF

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Publication number
CN1731648A
CN1731648A CN 200510103346 CN200510103346A CN1731648A CN 1731648 A CN1731648 A CN 1731648A CN 200510103346 CN200510103346 CN 200510103346 CN 200510103346 A CN200510103346 A CN 200510103346A CN 1731648 A CN1731648 A CN 1731648A
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China
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resistance
connect
diode
frequency
capacitor
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CN 200510103346
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CN100384046C (en
Inventor
李晓刚
程勇
王思顺
范劲宏
王建民
王振
范维礼
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Wang Sishun
Shandong University of Science and Technology
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李晓刚
王思顺
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Priority to CNB2005101033465A priority Critical patent/CN100384046C/en
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Publication of CN100384046C publication Critical patent/CN100384046C/en
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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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation

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  • Supply And Distribution Of Alternating Current (AREA)

Abstract

Disclosed is a high voltage reactive-load compensation device which comprises: power capacitor which is characterized in that the device comprises a filter that comprising reactor L1, L2, L3, L4, L5 and L6, impedance R1, R2 and R3, high frequency capacitor C1, C2 and C3. The device comprises voltage transformer, harmonic wave detecting unit with a frequency <=150Hz, a harmonic wave detecting unit with a frequency>=200Hz, a harmonic wave frequency indicator memory unit with a frequency <= 150Hz, a harmonic wave frequency indicator memory unit with a frequency>=200Hz, and an over-voltage protecting circuit. An over-temperature protecting circuit comprises a protecting switch circuit for time-base circuit IC5 and relay J3. When the harmonic wave current exceeds the allowing value, cuts off the capacitor group temporarily and starts again when it reducing to the allowing value.

Description

High voltage reactive-load compensation complete equipment
Technical field
The present invention relates to a kind of device in power distribution field, more particularly, the present invention relates to a kind of high voltage reactive-load compensation complete equipment.In International Patent Classification (IPC), the present invention should be divided into the H02J group.
Background technology
Along with the prolongation of high-voltage electric power circuit and the increase of high-power transformer, low-voltage capacitance compensating can not solve the problem of high pressure line loss and no-load transformer reactive loss.Even make terminal voltage be lower than acceptance value.High-pressure capacitance compensation is gradually spread now, mainly based on mains side and load side centralized compensation, when when harmonic wave appears in power line, find capacitor overcurrent or abnormal voice, administrative staff can in time cut off capacitor power, avoiding capacitor to damage, but this can cause power quality further to destroy.Particularly during line build-out, because harmonic wave is not fixed, after high order harmonic component occurs, the capacitive reactance of capacitor reduces, and the electric current off-rating of electric capacity and overcurrent can occur is because most of power factor controller is an electronic type, its poor anti jamming capability, the normal phenomenon that chaotic and Control Failure occur showing can cause leaky condenser even blast when serious, thereby cause supply line's fault.
Summary of the invention
The objective of the invention is to: at the deficiency of prior art, provide a kind of cheaply, can suppress harmonic wave, can prevent to cause capacitor blast or capacitor switching is irrational, can be contained in full automatic high voltage reactive-load compensation complete equipment on the high-voltage wire or in the cabinet of a certain section circuit, that can improve power supply quality because of factors such as overvoltage.
The objective of the invention is to be achieved through the following technical solutions: described high voltage reactive-load compensation complete equipment comprises power capacitor, and described power capacitor comprises power capacitor C-3W 1, power capacitor C-3W 2With power capacitor C-3W 3
Main feature is: described high voltage reactive-load compensation complete equipment has a filter, and described filter comprises reactor L 1, L 2, L 3, L 4, L 5And L 6, wherein: reactor L 1With L 2The same polarity series connection, reactor L 3With L 4The same polarity series connection, reactor L 5With L 6The same polarity series connection.
Described filter comprises resistance R 1, R 2And R 3
Described filter comprises high frequency capacitance C 1, C 2And C 3
Described resistance R 1With reactor L 1After the parallel connection again with described high frequency capacitance C 1An end connect.
Described resistance R 2With reactor L 3After the parallel connection again with described high frequency capacitance C 2An end connect.
Described resistance R 3With reactor L 5After the parallel connection again with described high frequency capacitance C 3An end connect.
Described reactor L 1And L 2Same polarity series connection back is by the contact ZJ of vacuum contactor 1With power capacitor C-3W 1An end connect.
Described reactor L 3And L 4Same polarity series connection back is by the contact ZJ of vacuum contactor 2With power capacitor C-3W 2An end connect.
Described reactor L 5And L 6Same polarity series connection back is by the contact ZJ of vacuum contactor 3With power capacitor C-3W 3An end connect.
Described high frequency capacitance C 1The other end, described high frequency capacitance C 2The other end, described high frequency capacitance C 3The other end, described power capacitor C-3W 1The other end, described power capacitor C-3W 2The other end and described power capacitor C-3W 3The other end all link together.
Described resistance R 1With reactor L 1The common port of the upside after the parallel connection connects the A phase of power line.
Described resistance R 2With reactor L 3The common port of the upside after the parallel connection connects the B phase of power line.
Described resistance R 3With reactor L 5The common port of the upside after the parallel connection connects the C phase of power line.
Described high voltage reactive-load compensation complete equipment comprises voltage transformer pt, and the primary side of described voltage transformer pt is connected between the two-phase of power line, vacuum contactor ZJ and relay J 3Normally closed interlock series connection after be connected to the secondary side of described voltage transformer pt, resistance R 4, inductance L 7And resistance R 5The bleeder circuit that the series connection back is formed is connected to the secondary side of described voltage transformer pt, described inductance L 7And resistance R 5Common end grounding.
Described high voltage reactive-load compensation complete equipment has one to comprise operational amplifier IC 1The harmonic wave detecting unit of frequency≤150Hz, have one to comprise operational amplifier IC 3The high order harmonic component detecting unit of frequency 〉=200Hz, have one to comprise operational amplifier IC 2The harmonic frequency indication mnemon of frequency≤150Hz, have one to comprise operational amplifier IC 4The harmonic frequency indication mnemon of frequency 〉=200Hz, an overvoltage crowbar is arranged. an overtemperature prote circuit is arranged, has one to comprise time-base circuit IC 5, relay J 3The protection switch circuit.
In the harmonic wave detecting unit of described frequency≤150Hz: have one by inductance L 8, capacitor C 4And inductance L 9The logical oscillating circuit of the band of the frequency≤150Hz that forms, described inductance L 8An end and resistance R 4And inductance L 7Common port connect described inductance L 8The other end and capacitor C 4An end connect described capacitor C 4The other end respectively with resistance R 7An end, operational amplifier IC 1'-' end and inductance L 9An end connect described inductance L 9The other end be connected with ground; Resistance R 8An end and described operational amplifier IC 1'+' end connect resistance R 8Other end ground connection; Described resistance R 7The other end respectively with voltage stabilizing didoe DW 1Negative pole, operational amplifier IC 1Output connect described voltage stabilizing didoe DW 1Positive pole respectively with diode D 1Positive pole and diode D 2Positive pole connect described diode D 1Negative pole connect time-base circuit IC 5Input.
In the harmonic frequency indication mnemon of described frequency≤150Hz: described harmonic frequency indication mnemon comprises operational amplifier IC 2, diode D 3, set resistance W 1, R 13, light-emitting diode H 1With current-limiting resistance R 6Wherein: described operational amplifier IC 2Output connect described diode D 3Positive pole, described diode D 3Negative pole connect described diode D respectively 2Negative pole and described operational amplifier IC 2'+' end, described setting resistance W 1An end connect power supply+12V, the setting resistance W that states 1The other end connect described operational amplifier IC respectively 2'-' end and described setting resistance R 13An end, described setting resistance R 13The other end connect described operational amplifier IC respectively 2Output and described light-emitting diode H 1Positive pole, described light-emitting diode H 1Negative pole by described current-limiting resistance R 6Ground connection.
In the high order harmonic component detecting unit of described frequency 〉=200Hz: described high order harmonic component detecting unit comprises by high-frequency inductor coil L 10And capacitor C 5High order harmonic component absorption circuit, the operational amplifier IC of the frequency 〉=200Hz that forms 3, resistance R 9, resistance R 11, voltage stabilizing didoe DW 2, diode D 4With diode D 5Described capacitor C 5An end and described resistance R 4And inductance L 7Common port connect described capacitor C 5The other end respectively with described resistance R 9An end, operational amplifier IC 3'-' end and high-frequency inductor coil L 10An end connect described high-frequency inductor coil L 10Other end ground connection, described resistance R 11An end ground connection, described resistance R 11The other end connect described operational amplifier IC 3'+' end, described operational amplifier IC 3Output connect described resistance R respectively 9The other end and described voltage stabilizing didoe DW 2Negative pole, described voltage stabilizing didoe DW 2Positive pole connect diode D respectively 4With diode D 5Positive pole, described diode D 4Negative pole connect time-base circuit IC 5Input.
In the harmonic frequency indication mnemon of described frequency 〉=200Hz: described harmonic frequency indication mnemon comprises operational amplifier IC 4, diode D 6, set resistance W 2, R 14, light-emitting diode H 2With current-limiting resistance R 10Wherein: described operational amplifier IC 4Output connect described diode D 6Positive pole, described diode D 6Negative pole connect described diode D respectively 5Negative pole and described operational amplifier IC 4'+' end, described setting resistance W 2An end connect power supply+12V, described setting resistance W 2The other end connect described operational amplifier IC respectively 4'-' end and described setting resistance R 14An end, described setting resistance R 14The other end connect described operational amplifier IC respectively 4Output and described light-emitting diode H 2Positive pole, described light-emitting diode H 2Negative pole by described current-limiting resistance R 10Ground connection.
Described overvoltage crowbar comprises sets resistance W 3, voltage stabilizing didoe DW 3With diode D 8, described setting resistance W 3An end and described resistance R 4And inductance L 7Common port connect described setting resistance W 3The other end and described voltage stabilizing didoe DW 3Negative terminal connects, described voltage stabilizing didoe DW 3Anode connect described diode D 8Positive pole, described diode D 8Negative pole connects time-base circuit IC 5Input.
Described overtemperature prote circuit comprises temperature sensor W 0, temperature sets adjustable resistance W 4With diode D 7, described temperature sensor W 0An end connect power supply+12V, described temperature sensor W 0The other end and described temperature set adjustable resistance W 4An end connect, described temperature is set adjustable resistance W 4The other end connect diode D 7Positive pole, described diode D 7Negative pole connect time-base circuit IC 5Input.
Described protection switch circuit comprises by electrochemical capacitor C 6And resistance R 12The delay circuit, the time-base circuit IC that form 5, relay J 3And capacitor C 7, described electrochemical capacitor C 6And resistance R 12Back its electrochemical capacitor C in parallel 6Negativing ending grounding, its electrochemical capacitor C 6Anode connect time-base circuit IC 5Input, described capacitor C 7An end ground connection, described capacitor C 7The other end connect described time-base circuit IC 5An end, described relay J 3Be connected across described time-base circuit IC 5Two ends, described relay J 3An end be connected+the 12V power supply on.
Described resistance R 1, R 2And R 3Be noninductive resistance.
Because the present invention adopted above-mentioned technical scheme, when harmonic current hour, by filter on the spot filtering eliminate; When harmonic current surpasses permissible value, temporarily excise the capacitor group; When harmonic current is reduced to permissible value by the time, drop into the capacitor group once more, and the HF filtering capacitor group of low capacity is parallel to all the time in the electrical network, has both compensated idlely, eliminated the harmonic components in the power circuit again, power waveform is improved.Another characteristics of the present invention are the memory functions with harmonic frequency: for example, when the harmonic current that occurs in the circuit surpassed permissible value, equipment is excision capacitor group automatically.Fault can drop into the capacitor group again later automatically, and permanent memory is done in the harmonic frequency indication of appearance, and demonstration is harmonic wave or the harmonic wave more than 4 times below 3 times.This equipment also has over-voltage protecting function and overtemperature prote function,
Description of drawings
Accompanying drawing 1 is a fundamental diagram of the present invention.Described high voltage reactive-load compensation complete equipment has a filter, and described high voltage reactive-load compensation complete equipment comprises voltage transformer pt, and described high voltage reactive-load compensation complete equipment has one to comprise operational amplifier IC 1The harmonic wave detecting unit of frequency≤150Hz, have one to comprise operational amplifier IC 3The high order harmonic component detecting unit of frequency 〉=200Hz, have one to comprise operational amplifier IC 2The harmonic frequency indication mnemon of frequency≤150Hz, have one to comprise operational amplifier IC 4The harmonic frequency indication mnemon of frequency 〉=200Hz, an overvoltage crowbar is arranged. an overtemperature prote circuit is arranged, has one to comprise time-base circuit IC 5, relay J 3The protection switch circuit.
Embodiment
The present invention is further described below in conjunction with drawings and Examples, and accompanying drawing 1 is a most preferred embodiment of the present invention.Described high voltage reactive-load compensation complete equipment has a filter, and described filter comprises: reactor L 1, L 2, L 3, L 4, L 5, L 6, resistance R 1, R 2, R 3, high frequency capacitance C 1, C 2And C 3, power capacitor C-3W 1, C-3W 2And C-3W 3In addition, the contact ZJ that also comprises vacuum contactor 1, ZJ 2With ZJ 3Wherein: reactor L 1With L 2The same polarity series connection, reactor L 3With L 4The same polarity series connection, reactor L 5With L 6The same polarity series connection.Described resistance R 1With reactor L 1After the parallel connection again with described high frequency capacitance C 1An end connect; Described resistance R 2With reactor L 3After the parallel connection again with described high frequency capacitance C 2An end connect; Described resistance R 3With reactor L 5After the parallel connection again with described high frequency capacitance C 3An end connect.Described reactor L 1And L 2Pass through the contact ZJ of vacuum contactor after the same polarity series connection again 1With power capacitor C-3W 1An end connect; Described reactor L 3And L 4Pass through the contact ZJ of vacuum contactor after the same polarity series connection again 2With power capacitor C-3W 2An end connect; Described reactor L 5And L 6Pass through the contact ZJ of vacuum contactor after the same polarity series connection again 3With power capacitor C-3W 3An end connect.Described high frequency capacitance C 1The other end, high frequency capacitance C 2The other end, high frequency capacitance C 3The other end, described power capacitor C-3W 1The other end, power capacitor C-3W 2The other end and power capacitor C-3W 3The other end all link together.Described resistance R 1With reactor L 1The common port of the upside after the parallel connection connects the A phase of power line, resistance R 2With reactor L 3The common port of the upside after the parallel connection connects the B phase of power line, resistance R 3With reactor L 5The common port of the upside after the parallel connection connects the C phase of power line.Can also see in this embodiment: described high voltage reactive-load compensation complete equipment comprises voltage transformer pt, and the primary side of described voltage transformer pt is connected between the two-phase of power line, vacuum contactor ZJ and relay J 3Normally closed interlock series connection after be connected to the secondary side of described voltage transformer pt, resistance R 4, inductance L 7And resistance R 5The bleeder circuit that the series connection back is formed is connected to the secondary side of described voltage transformer pt, described inductance L 7And resistance R 5Common end grounding.
The harmonic wave detecting unit and the high order harmonic component detecting unit of frequency 〉=200Hz and the corresponding with it harmonic frequency indication mnemon that also comprise frequency≤150Hz in this embodiment; In addition, also have overvoltage crowbar and overtemperature prote circuit; In addition, also has a supporting with it protection switch circuit.
Its operation principle is as follows: be example mutually with A now, when system sent electricity, under normal situation, the power frequency of 50Hz was by reactor L 1, L 2Main contact ZJ with vacuum contactor 1To electric capacitor C-3W 1Charging because present Low ESR, so the pressure drop at reactor two ends is very little, has reached purpose of energy saving; When having harmonic wave to occur in the circuit, the reactor L of series connection 1, L 2Present high impedance, limited the increase of power capacitor electric current; And simultaneously, harmonic current is by noninductive resistance R 1To high frequency capacitance C 1Charging has increased filter effect.When if harmonic voltage surpasses permissible value, the work of harmonic wave detecting unit, the main contact ZJ of disconnection vacuum contactor 1, power capacitor C-3W 1Temporarily out of service, and noninductive resistance R 1With reactor L 1After the parallel connection again with high frequency capacitance C 1Operation is continued in the loop of series connection, the effect that reach and absorb harmonic wave, improves power supply quality.The operation principle of other two-phase is identical, repeats no more.
The test point of harmonic source is the secondary output of voltage transformer pt, wherein resistance R 4, inductance L 7And resistance R 5The series connection back forms bleeder circuit.It detects principle: by low frequency inductance coil L 8, L 9, capacitor C 4Form the resonant circuit about 150Hz, the L that signal is got 7The hot junction, about 150Hz, L 9The voltage output at two ends is the highest, by operational amplifier IC 1Amplify, when reaching set point, voltage stabilizing didoe DW 1Puncture conducting, by ' or ' gate diode D 1Trigger time-base circuit IC 5, relay J 3Action, its normally-closed contact disconnects, high-pressure vacuum contactor ZJ action, its main contact disconnects (ZJ 1, ZJ 2, and ZJ 3Disconnect simultaneously), cut off power capacitor C-3W 1, C-3W 2And C-3W 3Power supply, power capacitor is deactivated, treat that harmonic wave is eliminated after, by capacitor C 6, resistance R 12The delay circuit of forming makes time-base circuit IC 5The output high potential, relay J 3 loses electric current, drops into power capacitor C-3W again 1, C-3W 2And C-3W 3
In like manner, by high-frequency inductor coil L 10, capacitor C 5The high order harmonic component absorption circuit of component frequency 〉=200Hz, harmonic frequency is high more, high-frequency inductor coil L 10The voltage at two ends is big more, when surpassing set point, through operational amplifier IC 3Oppositely amplify voltage stabilizing didoe DW 2Puncture, by ' or ' gate diode D 4Trigger time-base circuit IC 5, repeat the situation of above-mentioned 150Hz, repeat no more.
In addition, by operational amplifier IC 2, diode D 3, set resistance W 1, R 13, indication light-emitting diode H 1, current-limiting resistance R 6The indication memory switch circuit of component frequency≤150Hz.Its operation principle is: by by operational amplifier IC 1The harmonic signal of output is through isolating diode D 2Trigger operational amplifier IC 2In-phase input end, through setting resistance W 1, R 13Adjust operational amplifier IC when surpassing set point 2The output high potential is by positive feedback diode D 3High potential is fed back to operational amplifier IC 2In-phase input end, even harmonic source disappears, IC 2All the time export high potential, memory indicator H 1Do permanent lighting (after treating that administrative staff write down, close primary power source again, send electric indicator light just can extinguish again, i.e. manual reset).In like manner, by operational amplifier IC 4, diode D 6, set resistance W 2, R 14, indication light-emitting diode H 2, current-limiting resistance R 10The indication memory switch circuit of component frequency 〉=250Hz, the same with the above-mentioned course of work, repeat no more.
Described excess voltage protection is by setting resistance W 3, voltage stabilizing didoe DW 3' or ' gate diode D 8Form.Its operation principle is: the voltage of voltage transformer pt secondary side raises with the voltage of system, inductance coil L 7The hot junction current potential increase thereupon, through setting adjustable resistance W 3Adjust, when reaching within the permissible value, voltage stabilizing didoe DW 3Not conducting, DW when voltage surpasses permissible value 3Puncture conducting, through ' or ' gate diode D 8Trigger IC 5Output is an electronegative potential, relay J 3Action disconnects the power capacitor group, when treating that voltage returns to normal value, powers to the power capacitor group again.
Described overtemperature prote circuit is by temperature sensor W 0, temperature sets adjustable resistance W 4' or ' gate diode D 7Form.Its operation principle is: temperature sensor W 0Change with temperature, by adjusting adjustable resistance W 4, when temperature surpassed set point, source current was by described W 0, W 4' or ' gate diode D 7Trigger IC 5Output is an electronegative potential, relay J 3Action, its contact J 3Disconnect, vacuum contactor coil decompression disconnects the power capacitor group.In case of necessity, another group normally opened contact of available relay is connected ventilating fan. put into operation again after waiting to lower the temperature.
The present invention has eliminated the harmonic components in the power circuit substantially, improve the quality of power supply, reduced the energy loss in the circuit, improved the transfer efficiency of electric energy, solve the overheated situation of overvoltage that the power capacitor group causes because of harmonic wave, thereby prevented the problem of capacitor blast.Because this equipment has harmonic frequency indication memory function, it is triple-frequency harmonics or high order harmonic component that administrative staff can sum up harmonic frequency by each mounting points, and can find the harmonic wave scene apace, so that in time solve the electric pollution problem.Structure of the present invention is simple relatively, and it is lower to be convenient to manufacturing and manufacturing cost, helps using and promoting.

Claims (9)

1. high voltage reactive-load compensation complete equipment, described high voltage reactive-load compensation complete equipment comprises power capacitor, described power capacitor comprises power capacitor C-3W 1, power capacitor C-3W 2With power capacitor C-3W 3
It is characterized in that: described high voltage reactive-load compensation complete equipment has a filter, and described filter comprises reactor L 1, L 2, L 3, L 4, L 5And L 6, wherein: reactor L 1With L 2The same polarity series connection, reactor L 3With L 4The same polarity series connection, reactor L 5With L 6The same polarity series connection;
Described filter comprises resistance R 1, R 2And R 3
Described filter comprises high frequency capacitance C 1, C 2And C 3
Described resistance R 1With reactor L 1After the parallel connection again with described high frequency capacitance C 1An end connect;
Described resistance R 2With reactor L 3After the parallel connection again with described high frequency capacitance C 2An end connect;
Described resistance R 3With reactor L 5After the parallel connection again with described high frequency capacitance C 3An end connect;
Described reactor L 1And L 2Same polarity series connection back is by the contact ZJ of vacuum contactor 1With power capacitor C-3W 1An end connect;
Described reactor L 3And L 4Same polarity series connection back is by the contact ZJ of vacuum contactor 2With power capacitor C-3W 2An end connect;
Described reactor L 5And L 6Same polarity series connection back is by the contact ZJ of vacuum contactor 3With power capacitor C-3W 3An end connect;
Described high frequency capacitance C 1The other end, described high frequency capacitance C 2The other end, described high frequency capacitance C 3The other end, described power capacitor C-3W 1The other end, described power capacitor C-3W 2The other end and described power capacitor C-3W 3The other end all link together;
Described resistance R 1With reactor L 1The common port of the upside after the parallel connection connects the A phase of power line;
Described resistance R 2With reactor L 3The common port of the upside after the parallel connection connects the B phase of power line;
Described resistance R 3With reactor L 5The common port of the upside after the parallel connection connects the C phase of power line;
Described high voltage reactive-load compensation complete equipment comprises voltage transformer pt, and the primary side of described voltage transformer pt is connected between the two-phase of power line, vacuum contactor ZJ and relay J 3Normally closed interlock series connection after be connected to the secondary side of described voltage transformer pt, resistance R 4, inductance L 7And resistance R 5The bleeder circuit that the series connection back is formed is connected to the secondary side of described voltage transformer pt, described inductance L 7And resistance R 5Common end grounding;
Described high voltage reactive-load compensation complete equipment has one to comprise operational amplifier IC 1The harmonic wave detecting unit of frequency≤150Hz, have one to comprise operational amplifier IC 3The high order harmonic component detecting unit of frequency 〉=200Hz, have one to comprise operational amplifier IC 2The harmonic frequency indication mnemon of frequency≤150Hz, have one to comprise operational amplifier IC 4The harmonic frequency indication mnemon of frequency 〉=200Hz, an overvoltage crowbar is arranged.An overtemperature prote circuit is arranged, have one to comprise time-base circuit IC 5, relay J 3The protection switch circuit.
2. high voltage reactive-load compensation complete equipment according to claim 1 is characterized in that: in the harmonic wave detecting unit of described frequency≤150Hz: have one by inductance L 8, capacitor C 4And inductance L 9The logical oscillating circuit of the band of the frequency≤150Hz that forms, described inductance L 8An end and resistance R 4And inductance L 7Common port connect described inductance L 8The other end and capacitor C 4An end connect described capacitor C 4The other end respectively with resistance R 7An end, operational amplifier IC 1'-' end and inductance L 9An end connect described inductance L 9The other end be connected with ground; Resistance R 8An end and described operational amplifier IC 1'+' end connect resistance R 8Other end ground connection; Described resistance R 7The other end respectively with voltage stabilizing didoe DW 1Negative pole, operational amplifier IC 1Output connect described voltage stabilizing didoe DW 1Positive pole respectively with diode D 1Positive pole and diode D 2Positive pole connect described diode D 1Negative pole connect time-base circuit IC 5Input.
3. high voltage reactive-load compensation complete equipment according to claim 1 is characterized in that: in the harmonic frequency indication mnemon of described frequency≤150Hz: described harmonic frequency indication mnemon comprises operational amplifier IC 2, diode D 3, set resistance W 1, R 13, light-emitting diode H 1With current-limiting resistance R 6Wherein: described operational amplifier IC 2Output connect described diode D 3Positive pole, described diode D 3Negative pole connect described diode D respectively 2Negative pole and described operational amplifier IC 2'+' end, described setting resistance W 1An end connect power supply+12V, the setting resistance W that states 1The other end connect described operational amplifier IC respectively 2'-' end and described setting resistance R 13An end, described setting resistance R 13The other end connect described operational amplifier IC respectively 2Output and described light-emitting diode H 1Positive pole, described light-emitting diode H 1Negative pole by described current-limiting resistance R 6Ground connection.
4. high voltage reactive-load compensation complete equipment according to claim 1 is characterized in that: in the high order harmonic component detecting unit of described frequency 〉=200Hz: described high order harmonic component detecting unit comprises by high-frequency inductor coil L 10And capacitor C 5High order harmonic component absorption circuit, the operational amplifier IC of the frequency 〉=200Hz that forms 3, resistance R 9, resistance R 11, voltage stabilizing didoe DW 2, diode D 4With diode D 5Described capacitor C 5An end and described resistance R 4And inductance L 7Common port connect described capacitor C 5The other end respectively with described resistance R 9An end, operational amplifier IC 3'-' end and high-frequency inductor coil L 10An end connect described high-frequency inductor coil L 10Other end ground connection, described resistance R 11An end ground connection, described resistance R 11The other end connect described operational amplifier IC 3'+' end, described operational amplifier IC 3Output connect described resistance R respectively 9The other end and described voltage stabilizing didoe DW 2Negative pole, described voltage stabilizing didoe DW 2Positive pole connect diode D respectively 4With diode D 5Positive pole, described diode D 4Negative pole connect time-base circuit IC 5Input.
5. high voltage reactive-load compensation complete equipment according to claim 1 is characterized in that: in the harmonic frequency indication mnemon of described frequency 〉=200Hz: described harmonic frequency indication mnemon comprises operational amplifier IC 4, diode D 6, set resistance W 2, R 14, light-emitting diode H 2With current-limiting resistance R 10Wherein: described operational amplifier IC 4Output connect described diode D 6Positive pole, described diode D 6Negative pole connect described diode D respectively 5Negative pole and described operational amplifier IC 4'+' end, described setting resistance W 2An end connect power supply+12V, described setting resistance W 2The other end connect described operational amplifier IC respectively 4'-' end and described setting resistance R 14An end, described setting resistance R 14In addition end connect described operational amplifier IC respectively 4Output and described light-emitting diode H 2Positive pole, described light-emitting diode H 2Negative pole by described current-limiting resistance R 10Ground connection.
6. high voltage reactive-load compensation complete equipment according to claim 1 is characterized in that: described overvoltage crowbar comprises sets resistance W 3, voltage stabilizing didoe DW 3With diode D 8, described setting resistance W 3An end and described resistance R 4And inductance L 7Common port connect described setting resistance W 3The other end and described voltage stabilizing didoe DW 3Negative terminal connects, described voltage stabilizing didoe DW 3Anode connect described diode D 8Positive pole, described diode D 8Negative pole connects time-base circuit IC 5Input.
7. high voltage reactive-load compensation complete equipment according to claim 1 is characterized in that: described overtemperature prote circuit comprises temperature sensor W 0, temperature sets adjustable resistance W 4With diode D 7, described temperature sensor W 0An end connect power supply+12V, described temperature sensor W 0The other end and described temperature set adjustable resistance W 4An end connect, described temperature is set adjustable resistance W 4The other end connect diode D 7Positive pole, described diode D 7Negative pole connect time-base circuit IC 5Input.
8. high voltage reactive-load compensation complete equipment according to claim 1 is characterized in that: described protection switch circuit comprises by electrochemical capacitor C 6And resistance R 12The delay circuit, the time-base circuit IC that form 5, relay J 3And capacitor C 7, described electrochemical capacitor C 6And resistance R 12Back its electrochemical capacitor C in parallel 6Negativing ending grounding, its electrochemical capacitor C 6Anode connect time-base circuit IC 5Input, described capacitor C 7An end ground connection, described capacitor C 7The other end connect described time-base circuit IC 5An end, described relay J 3Be connected across described time-base circuit IC 5Two ends, described relay J 3An end be connected+the 12V power supply on.
9. high voltage reactive-load compensation complete equipment according to claim 1 is characterized in that: described resistance R 1, R 2And R 3Be noninductive resistance.
CNB2005101033465A 2005-09-20 2005-09-20 High voltage reactive-load compensation complete equipment Expired - Fee Related CN100384046C (en)

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CN100384046C CN100384046C (en) 2008-04-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102723715A (en) * 2011-12-30 2012-10-10 上海纳杰电气成套有限公司 Super capacitor and capacitance compensation circuit structure capable of eliminating low-order harmonic
CN104449149A (en) * 2014-12-26 2015-03-25 苏州菲斯特电力科技有限公司 High-pressure filter compensation complete unit
CN105602318A (en) * 2015-11-20 2016-05-25 苏州菲斯特电力科技有限公司 Novel high-pressure filter compensation complete device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3319169B2 (en) * 1994-08-30 2002-08-26 松下電器産業株式会社 Static var compensator
JP2994596B2 (en) * 1996-12-17 1999-12-27 三菱電機ビルテクノサービス株式会社 Power factor adjustment system
CN1402408A (en) * 2002-09-11 2003-03-12 来林娟 High performance reactive power compensation circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102723715A (en) * 2011-12-30 2012-10-10 上海纳杰电气成套有限公司 Super capacitor and capacitance compensation circuit structure capable of eliminating low-order harmonic
CN102723715B (en) * 2011-12-30 2014-11-05 上海纳杰电气成套有限公司 Super capacitor and capacitance compensation circuit structure capable of eliminating low-order harmonic
CN104449149A (en) * 2014-12-26 2015-03-25 苏州菲斯特电力科技有限公司 High-pressure filter compensation complete unit
CN105602318A (en) * 2015-11-20 2016-05-25 苏州菲斯特电力科技有限公司 Novel high-pressure filter compensation complete device

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