CN207753454U - Controllable type voltage regulator controller - Google Patents

Abstract

The utility model discloses a kind of controllable type voltage regulator controllers, including grouping voltage dropping silicon chain and automatic control circuit, the voltage input end of+HM is connected to+KM voltage output ends by being grouped voltage dropping silicon chain, heavy DC relay corresponding with the grouping voltage dropping silicon of voltage dropping silicon chain and decompression fling-cut switch are connected in parallel between KM voltage output ends anode and cathode, for the decompression fling-cut switch controlled connection in the automatic control circuit, the normally-closed contact of the heavy DC relay is connected in parallel in each voltage dropping silicon both ends of grouping voltage dropping silicon chain respectively；The automatic control circuit contains power circuit and control channel corresponding with the grouping voltage dropping silicon group number of voltage dropping silicon chain, automatic control circuit determines the break-make of heavy DC relay by the voltage swing of detection+HM, and then control decompression fling-cut switch of the short circuit in voltage dropping silicon both ends and act, realize the adjust automatically of control bus voltage.

Description

Controllable type voltage regulator controller

Technical field

The utility model is related to a kind of voltage regulator controllers, are suitable for electric supply system to DC control busbar voltage Carry out voltage automatic adjustment.

Background technology

Voltage regulator controller, which is used as, is widely used in electric system DC power control system（Referred to as：Direct current cabinet）In A kind of voltage regulating device, when being operated in " automatic " state, controller detects busbar voltage, and compared with setting value, works as busbar Voltage is higher than（It is less than）The upper limit of setting value（Lower limit）When, controller sends out signal, and driving executes relay, by executing relay The disjunction of device or closure change the step-down value of voltage-stabilizing silicon chain, it is ensured that bus voltage value is within the limits prescribed.

During Traditional DC screen pressure regulation, it may appear that following situation：1, female according to control lock by ten thousand turns of switch manuals of cabinet Line voltage directly affects the safety of Operation of Electric Systems if system voltage is unstable；2, pass through direct current cabinet monitoring unit Control contact controls the decompression of silicon chain, if the right problem of monitoring module, silicon chain output voltage will be in relatively low, influence the operation of comprehensive guarantor Stability；3, traditional external voltage relay of silicon chain regulator, wiring is complicated easily to break down.

Invention content

The utility model is in view of the shortcomings of the prior art, propose a kind of controllable type voltage regulator controller, by automatically controlling electricity The compositions such as road, regulating switch, heavy DC relay and grouping voltage dropping silicon chain, are adjusted rapidly, stable and reliable in work.

Technical solution used by the utility model：

A kind of controllable type voltage regulator controller, including grouping voltage dropping silicon chain and automatic control circuit, the control source of+HM End is connected to+KM voltage output ends by being grouped voltage dropping silicon chain, is connected in parallel between KM voltage output ends anode and cathode With the corresponding heavy DC relay of the grouping voltage dropping silicon of voltage dropping silicon chain and decompression fling-cut switch, the decompression fling-cut switch by Control is connected to the automatic control circuit, and the normally-closed contact of the heavy DC relay is connected in parallel in grouping decompression respectively Each voltage dropping silicon both ends of silicon chain；The automatic control circuit contains power circuit and the voltage dropping silicon with grouping voltage dropping silicon chain The corresponding control channel of group number, automatic control circuit determine heavy DC relay by the voltage swing of detection+HM Break-make, and then control decompression fling-cut switch of the short circuit in voltage dropping silicon both ends and act, realize the adjust automatically of control bus voltage.

Grouping voltage dropping silicon chain contains five groups of voltage dropping silicons, and automatic control circuit corresponds to the control channel containing there are five, each to control Channel have voltage comparator and thyristor groups at, the 3rd foot input voltage vin point of LM358 voltage by R205, R206, The partial pressure of VR201, R255 determine that for the voltage range of+HM in 220V~264V, the input voltage of Vin points is 3.70V~6.44V, The voltage of VREF controls grid, the output of thyristor source electrode in 4.90V~5.14V, the output end connection thyristor of voltage comparator The coil of heavy DC relay is connected between end and power supply.The beneficial effects of the utility model：

1, the utility model controllable type voltage regulator controller can accurately detect silicon chain output voltage（That is control bus Voltage）And compared with setting value, when control bus voltage is high（It is less than）The upper limit of setting value（Lower limit）When, controller sends out driving Signal drives high power relay or D.C. contactor（60A or more is selected）, by point for executing relay or D.C. contactor Break or is closed to change the step-down value of silicon chain, so that it is guaranteed that control bus voltage value is within the scope of standard value.

2, the utility model controllable type voltage regulator controller is equipped with manual regulatory function, can also carry out revers voltage tune Section.Keep power bus voltage value constant, one grade of each manual voltage regulation makes control bus voltage change once until being adjusted to control Until busbar voltage is equal with power bus voltage.It is stable and reliable in work, it is light-weight, it is easy for installation.

3, the utility model controllable type voltage regulator controller, the voltage dropping silicon chain for also configuring decompression tube core composition have PN Tie the advantages that forward characteristic consistency is good, and step-down voltage is stablized, and dynamic electric resistor is small.And arbitrary group can be carried out according to customer demand It closes, it is ensured that the reliability and superiority of machine product optimize power system design to greatest extent, reach perfect, reliable rational Using.

Description of the drawings

Fig. 1 is the utility model controllable type voltage regulator controller system construction drawing；

Fig. 2 is the design circuit diagram in one channel of the utility model DC voltage regulation device；

Fig. 3 is the design drawing of the utility model DC voltage regulation installation's power source.

Specific implementation mode

Below by specific implementation mode, the technical solution of the utility model is described in further detail.

Embodiment 1：

Referring to Fig. 1, the utility model controllable type voltage regulator controller, including it is grouped voltage dropping silicon chain and automatically controls electricity The voltage input end on road ,+HM is connected to+KM voltage output ends by being grouped voltage dropping silicon chain, in KM voltage output ends anode and bears Heavy DC relay corresponding with the grouping voltage dropping silicon of voltage dropping silicon chain and decompression fling-cut switch, institute are connected in parallel between pole Decompression fling-cut switch controlled connection is stated in the automatic control circuit, the normally-closed contact difference of the heavy DC relay is simultaneously Connection is connected to each voltage dropping silicon both ends of grouping voltage dropping silicon chain；The automatic control circuit contains power circuit and and grouping The corresponding control channel of voltage dropping silicon group number of voltage dropping silicon chain, automatic control circuit are determined big by the voltage swing of detection+HM The break-make of current DC relay, and then control decompression fling-cut switch of the short circuit in voltage dropping silicon both ends and act, realize control bus The adjust automatically of voltage.

Embodiment 2：

Referring to Fig. 1, Fig. 2, the control formula voltage regulator controller of the present embodiment, difference from example 1 is that：Grouping Voltage dropping silicon chain contains five groups of voltage dropping silicons, and automatic control circuit corresponds to the control channel containing there are five, and each control channel is by voltage ratio Compared with circuit and control thyristor groups at, the 3rd foot input voltage vin point of voltage comparator LM358 voltage by R205, R206, The partial pressure of VR201, R255 determine that for the voltage range of+HM in 220V~264V, the input voltage of Vin points is 3.70V~6.44V, The voltage of VREF controls grid, the control in 4.90V~5.14V, the output end connection control thyristor of voltage comparator LM358 The coil of heavy DC relay is connected between combinations brake tube source electrode output end and power supply.

As shown in Fig. 2, IC201A forms a voltage comparator, input voltage works as input in the range of setting voltage When voltage is less than VREF, the output end of IC1 is low level, and M201 is not turned on, and KM is disconnected, and voltage dropping silicon chain is not put into, output electricity Pressure is equal to input voltage；When input voltage reaches VREF, IC1 exports high level, at this point, the output voltage of the 1st foot of LM358 For high level, current-limiting resistance R260 is 1K, and M201 is reliably connected, and KM is connected, one section of voltage dropping silicon chain input, the output voltage of device Decline.If input voltage is high again, next channel acts again, and voltage dropping silicon chain continues to put into, and output voltage reduces again, so protects Card+KM is in ± 5% range.

The utility model controllable type voltage regulator controller is adapted to 220V, 10V, 48V grade and is adjusted, as long as changing Become the parameter of R205, R206, VR201, R255, the present embodiment is illustrated with 220V grades.

Controllable type voltage regulator controller can be in power bus voltage（ HM ）It is automatic to adjust when continuously declining from maximum value Pressure, makes control bus always（ KM ）On voltage be maintained at setting valve；It is gradually risen to from minimum value in power bus voltage When maximum value, the voltage on control bus can also be made to keep setting valve.It is dynamic by controlling relay of the short circuit in voltage dropping silicon both ends Make, realizes the adjust automatically of control bus voltage, decompression range is in 0~40V.

Controllable type voltage regulator controller, when being operated in " automatic " state, controller detects busbar voltage, and and setting value Compare, when busbar voltage is higher than（It is less than）The upper limit of setting value（Lower limit）When, controller sends out signal, and driving executes relay, By executing disjunction or the closure of relay, change the step-down value of voltage-stabilizing silicon chain, it is ensured that bus voltage value is within the limits prescribed.

When controllable type voltage regulator controller works normally, " open loop protection circuit " monitors the state of silicon chain always, works as silicon When open fault occurs for chain, " open loop protection circuit " acts at once, and by silicon chain open circuit portions short circuit, silicon chain remainder remains to just Often work still has " manual ", " automatic " regulatory function.Meanwhile warning circuit acts, and sends out silicon chain open circuit alarm signal（After Electric appliance contact）.Its technical indicator is as follows：It is depressured range：0~45V；Rated current：3~200A；The precision of voltage regulation：≤2%；Decompression Grouping：5 grades or 7 grades；Environment temperature：- 10~+50 DEG C；Relative humidity：≤95%；Height above sea level：≤ 2000 meters；Nothing in air Serious conducting dust Egypt corrosive gas；Without strenuous vibration.

Embodiment 3：

Referring to Fig. 1, Fig. 2, Fig. 3, the control formula voltage regulator controller of the present embodiment, with embodiment 1 or the difference of embodiment 2 Place is：Control channel uses power circuit as shown in Figure 3.In Fig. 3, R8 is current limliting dropping resistor, the work of adjuster Electric current is 10mA~20mA, and DW1 is the zener diode of+24V, and work leakage current is 0~30mA, to known to most by R8 When big operating current is 20mA, the pressure drop 200V or so on R8 if operating current is 10mA, is increased by DW1 zener diodes Add the leakage current of 10mA, the pressure drop on R8 is 200V or so again, so R8 selects 10K/30W can.

Claims (2)

1. a kind of controllable type voltage regulator controller, including grouping voltage dropping silicon chain and automatic control circuit, the voltage input end of+HM It is connected to+KM voltage output ends by being grouped voltage dropping silicon chain, it is characterised in that：Between KM voltage output ends anode and cathode simultaneously Connection is connected with heavy DC relay corresponding with the grouping voltage dropping silicon of voltage dropping silicon chain and decompression fling-cut switch, the decompression are thrown It cuts and closes controlled connection in the automatic control circuit, the normally-closed contact of the heavy DC relay is connected in parallel in respectively It is grouped each voltage dropping silicon both ends of voltage dropping silicon chain；The automatic control circuit contains power circuit and and grouping voltage dropping silicon chain The corresponding control channel of voltage dropping silicon group number, automatic control circuit determines heavy DC by the voltage swing of detection+HM The break-make of relay, and then control decompression fling-cut switch of the short circuit in voltage dropping silicon both ends and act, realize oneself of control bus voltage Dynamic adjustment.

2. controllable type voltage regulator controller according to claim 1, it is characterised in that：Grouping voltage dropping silicon chain contains five groups Voltage dropping silicon, automatic control circuit are corresponded to containing there are five control channel, each control channel have voltage comparator and thyristor groups at, The voltage of the 3rd foot input voltage vin point of LM358 determines by the partial pressure of R205, R206, VR201, R255, the voltage range of+HM It is 3.70V~6.44V in the input voltage of 220V~264V, Vin points, in 4.90V~5.14V, voltage compares the voltage of VREF The output end connection thyristor of device controls grid, and heavy DC relay is connected between thyristor source electrode output end and power supply Coil.