本文目录
- simulink的proportional模块在哪
- controller是什么意思
- 外文翻译(自动化专业)不 要在线翻译的
- 帮我解读这段程序
- 翻译啊!!!加急!!!
- 求一篇和“现金流量的资本决策分析”相关的英文文章
simulink的proportional模块在哪
就是Gain模块,三角形的那个,虽然它原本不叫这个名字,但是你可以改掉他的名字,在传函计算中两个模块的作用是一样的。
controller是什么意思
现代英汉controllern.审计员,审计官美国传统辞典controllerAHD:D.J.:K.K.: n.One that controls: 控制者控制或支配的人:a controller, not an observer of events.事件的支配者,而不是旁观者C101AlsocomptrollerC101也作comptrollerAHD:An officer who audits accounts and supervises the financial affairs of a corporation or of a governmental body. 审计官为企业或政府机构审查帐务并监督经济事务的官员A regulating mechanism, as in a vehicle or electric device. 控制器起控制作用的机械装置,如在交通工具或电动装置上现代英汉综合controllern.管理员, 检验员, 审计员调节装置〔仪表, 器〕; 操纵器〔杆〕; 控制装置〔器〕传感器配电设备开关设备(锚链的)掣键器特殊用法acceleration controller加速度控制器adaptive controller自适应控制装置〔器〕adjustable controller可调控制器admission controller进水〔气〕口控制器air operated humidity controller气动湿度控制器air traffic controller空中交通管理员alternating-current controller交流电控制器altitude controller高度调节〔控制〕器amplitude balance controller振幅平衡控制装置analog controller模拟控制器anchorage controller船舶停泊调度员approach controller进场管理员automatic controller自动控制〔调节〕器〔装置〕automatic temperature recorder controller自动温度记录调节器automatic volume controller自动音量控制器auto-search controller自动探索控制〔操纵〕器ball float level controller浮球液面调节器barometric pressure controller气压调节器blast volume controller风量控制器boost pressure controller升压调节〔控制〕器, 进气压力控制器brake controller制动控制器bus controller总线控制器central traffic controller总调度员centrifugal force controller离心力调节器, 离心调速器channel controller通道控制器changeover switch controller转换开关控制器circuit controller控制器; 转换开关clock controller时钟(脉冲)控制〔调节〕器combination controller复〔组〕合控制器combined electric lock and circuit controller组合电锁与电路控制器combustion controller燃烧控制器commutator controller整流子控制器consistency controller稠度控制器console controller操纵台管理员constant-pressure flow controller稳压流量控制器contactor controller接触器控制器, 接点控制系统controllable silicon controller可控硅控制器current controller电流控制器density controller密度控制器, 比重调节器derivative action controller微商作用控制器device controller设备控制器diaphragm box level controller气压型鼓膜液面控制器differential controller差压调节器differential gap controller差动间隙控制器digital controller数字控制器direct operating controller直接作用〔操作〕控制器director controller指挥仪disc storage controller磁盘存储控制器display controller显示控制器drum controller磁鼓〔鼓形〕控制器duplex controller双工控制〔调节〕器editing controller剪〔编〕辑操纵器elastic feedback controller弹性〔可变〕反馈控制器electric controller电控制器; 供电控制设备electrode controller电极控制器electrohydraulic controller电液控制器electromagnetic controller电磁控制器electromechanical controller电动机械控制器, 机电控制器electronic pressure controller电子压力控制器elevator controller升降机控制器, 电梯控制器engagement controller啮合调节器feed controller进给〔馈给, 送料〕控制器feedback-type proportioning controller反馈型比例控制器feedforward controller前馈控制器final controller终端控制〔调节〕器fine controller精密控制〔调整〕器fixed command controller固定指令〔给定值〕控制器flow controller流量控制器fluid-operated controller流体传动控制器frequency controller频率控制〔调节〕器fuzzy logic controller模糊逻辑控制器ga(u)ge controller厚度控制器(压延用)gain controller增益控制〔调整〕器, 音量控制器gamma controller图象灰度, 控制器, γ控制非线性控制器gas flow controller气流控制器gas-temperature controller燃气温度调节器generator voltage controller发电机电压控制器〔调节器〕goods traffic controller货运调度员hand controller人工控制器heating controller加热〔温度〕调节器high-low controller高-低位调节器hoist(ing) controller起重控制器humidity controller湿度控制〔调节〕器hydraulically operated controller液压控制器ignition controller着火控制剂〔器〕impulse controller脉冲控制〔调节〕器indicating controller指示控制器, 有刻度的控制器integral action controller积分作用〔动作〕控制器intelligent controller智能操纵〔控制〕器isochronous controller同步控制〔调节〕器isodromic controller等速控制器knob controller按钮式操纵器level controller电平控制器; 液面调节器lift controller电梯控制器lighting controller照明控制器, 灯光调节器linearity controller线性控制器load controller【采矿】控制装载装置magnetic switch controller磁开关控制器manual controller手动控制器master remote controller主遥控器mixer controller混频控制器motor speed controller发动机转速调节器multiple-unit controller多元控制器multiplex controller多路〔多重〕控制器off-on cycle controller开关周期控制器on-(and-)off controller双位调节器, 通断控制器oscillating controller振荡控制器over-and-under controller自动控制器parallel run controller并联运行控制器, 平行控制器passenger train controller客运调度员periodic controller周期性控制器phase controller相位补偿器photoelectric controller光电控制器pilot controller辅助控制器pilot-operated controller自动控制器pneumatic controller气压式调节计positioning controller定位控制器potentiometer-type master controller电位器式主控制器power controller功率控制〔调节〕器presentation controller显象〔节目〕控制器pressure controller电压调整器, 升压器; 压力控制器process-cycle controller(生产)顺序控制器program controller程序控制器〔检验器〕programmable digital controller可编程序数字控制机proportional controller比例控制器〔调节器〕proportional-integral-derivative controller比例-积分-微商控制器, PID 调节器pulling controller单晶拉制电子控制器pulse controller脉冲控制器push-button controller按钮式操纵器quantity controller数量控制器radar controller雷达操纵员rate controller速率〔微分〕控制器rate-of-flow controller流速控制器ratio controller关系调整器, 比值调节器reactive load controller无功〔电抗性〕负载控制器recording controller自动记录调节〔控制〕器, 数据控制器refresh controller再生控制器refrigeration controller致冷控制器register controller寄存器控制器relay-operated controller继电控制器reset controller重调〔重定〕(动作)控制器resistance controller电阻调节器〔控制器〕restriction controller限制〔节流〕控制器retardation controller减速控制器reversing controller可逆〔双向〕控制器rheostatic braking controller变阻制动器rotary speed controller转速控制器route controller线路调度员〔值班员〕; 进路控制器scram controller快速停推控制器second-generation analog merging controller再生模拟汇合控制器secondary controller副〔次级〕调节器self-acting controller自作用控制器sensitivity-time controller灵敏度-时间控制器sequence controller顺序控制器series-parallel controller串并联控制器shunting controller调车〔车站〕调度员shunting signal controller调车信号控制箱signal circuit controller信号电路控制器; 回路管制器size controller(图象的)尺寸控制器slave controller从属控制器, 从动调节器solid-state power proportioning controller固态功率比例控制器speed controller调速器; 转速调节器〔控制器〕; 速度调节手柄speech path controller话路控制器spray controller喷涂控制器spring controller弹簧控制器starter controller起动控制器static controller固定控制器station controller车站调度员step-by-step controller步进〔分步〕控制器straightline controller直线控制器subtraction controller减法控制器switch circuit controller转换〔开关〕电路控制器tactical air controller战术空中管制人员temperature limit controller温度限制控制器test controller测试员〔器〕thermal controller热控制〔调节〕器thermionic controller热离子调节器thermostatic controller恒温控制器throttling controller节流阀thrust controller推力自动稳定器, 推力调节器thyristor chopper controller可控硅斩波控制器time controller时控机构, 自动定时仪time-schedule controller程序控制器tone controller音调〔音质〕控制器; 色调控制器track controller线路值班员; 进路控制器tramway controller电车(道)控制器transductor controller磁放大器调节器transistorized on-off controller晶体管开关控制器transmission controller传输控制器turn controller转弯驾驶杆two-position controller双位(自动)调节器〔控制器〕, 通-断控制器unit switch controller单元开关控制器, 组合开关universal controller(起重机)万用控制器vacuum tube type automatic voltage controller电子管式自动电压调整器, 电子稳压器variable feedback controller可变反馈控制器variable speed controller变速控制器voice controller语音控制器voltage controller电压控制器volume controller音量控制〔调节〕器volume-and-flow controller容量与流速控制器wall stress controller(汽)缸壁应力控制器weighing controller(自动)重量定量器whistle controller(电)笛开关window machine controller中继控制器, 部分放大样控制器yard controller调车场调度员controller of accounts会计主任, 会计检查官, 审计官controller of currency通货检查员
外文翻译(自动化专业)不 要在线翻译的
In the conventional PID control algorithm, the proportional, integral and derivative parts are implemented 在常规PID控制算法中,正向循环系统中需要执行比例,积分及微分部分, in the forward loop, thus acting on the error between the set-point and closed-loop response. This PID 因此要对定点和闭环响应这二者的错误进行纠错。此PID控制controller implementation may lead to an undesirable phenomenon, namely the derivative kick. Also, by moving执行可能导致一种不愿看到的现象,叫作微分效应。同样,把PD部分转移到内部反馈环的话,一个不稳定或是 the PD part into an inner feedback loop, an unstable or integrating process can be stabilized and then 积分过程就会变得稳定而且将使正向PI控制起来更加高效。controlled more effectively by the PI controller in the forward path.Therefore, the control structure shown in Fig. 1, which is known as a PI-PD control structure, has been 所以,在图1所示的控制结构图即是PI-PD控制结构。在此结构中,G(s)为设备传递函数,GPI(s)proposed. In this structure, G(s) is the plant transfer functionand GPI(s) and GPD(s) are the PI and PD controller transfer functions, respectively, which have the following 及GPD(s)分别为PI和PD控制传递函数,附其理想状态下的形式:ideal forms:This structure, which uses an inner feedback loop, is not a totally new concept. Benouarets was the first to此结构运用于内部反馈环并不是一个全新的概念。Benouarets是第一个mention the PI-PD controller structure. Unfortunately, its true potential was not recognized there as it was used 提出PI-PD控制结构的人。不幸的是,它的潜在价值并没得到认可,因为它已被运用在一些设简单而稳定的实极to control plants with simple stable real pole transfer functions where its advantages are relatively minor. 值传递函数的设备控制中,这种控制中它的优越性并不明显。Later, Kwak et al. used a PID-P control structure for controlling integrating and unstable 随后,Kwak et al. 使用一种PID-P控制结构分别对积分过程和不稳定的过程进行控制。processes, respectively. However, as they still use the derivative term, D, in the forward path, the structure然而,由于它们仍然在正向系统中运用微分项“D”,这种结构may result in a derivative kick. Also, they use a gain only controller to alter the open-loop unstable or integrating 可能导致微分效应。同样,它们使用一个只增控制系统将开环但不稳定的过程或是积分processes to open-loop stable processes and then过程转换成开环且稳定的过程,然后运用PID控制对整个系统进行有效控制。use the PID controller for an effective control of the overall system. It is better to use an inner feedback loop 内部反馈环与PD控制器配合使用要比with a PD controller rather than a P-only controller, as this not only converts the open-loop unstable or 只使用单一比例控制器要好,因为这样不仅将开环但不稳定过程integrating processes to open-loop stable processes but also guarantees more suitable pole locations. To或是积分过程转换成开环且稳定的过程,而且能确保得到更加合适的极点位置。为了更好的弄清楚这一点, clarify this better, consider the PD controller of the form given by假定PD控制器传递函数为等式2所示,设备的传递函数如下所示Eq. 2 and a general plant transfer function of The closed-loop transfer function for the inner loop,with G(s) given by Eq. 3, is provided that n》m+2. 应用等式3得到内环闭环传递函数如下(……),已知n》m+2。The modification in the last two terms of the denominator of Eq. 4, due to the insertion f the PD controller used 由于反馈环中PD控制器的引入,等式4中分母的最后两项的限制作用很明显。in the feedback loop, is clear.Let us assume that the coefficients a0 and a1 take suitable alues to make the plant transfer function given in 试想对回归参数a0和a1赋以适当的值,这样会将上述等式3所示的设备传递函数变为不稳定,积分或是共振态Eq. 3 unstable, integrating or a resonant plant transfer function. The PD controller used in the inner feedback设备传递函数。应用于内部反馈环中的PD控制器可用来转换为一个应用于正向环中使用PI控制器的开环且稳定 loop can be used to convert it to an open-loop stable plant transfer function for the PI controller used in the的设备传递函数,这样可以得到一种更加令人满意的闭环控制效果。forward loop, which can then be used for a more satisfactory closed-loop performance. Another point, which 另外有必要指出的一点是 should be pointed out, is that the use of the PI-PD controller gives more flexibility than a PID-P controller to要想同时使用Kf和Td而不是只增变量Kf,在开环设备传递函数Gil(s)中得到更多合适极值点位,PI-PD的应用 locate the poles of open-loop plant transfer function Gil(s) in more desired locations, with the simultaneous比PID-P显得更加灵活。use of Kf and Td rather than a gain-only parameter Kf.
帮我解读这段程序
//定义一个结构体_pidstruct _pid { int pv; /*integer that contains the process value*/ int sp; /*integer that contains the set point*/ float integral; float pgain; float igain; float dgain; int deadband; int last_error; }; struct _pid warm,*pid; //定义1个类型为_pid型的变量warm和一个指向_pid型的变量warmint process_point, set_point,dead_band; float p_gain, i_gain, d_gain, integral_val,new_integ; //定义一个函数pid_initvoid pid_init(struct _pid *warm, int process_point, int set_point) { struct _pid *pid; pid=warm; //把warm定义的结构体的内容附给pidpid-》pv = process_point; //设置pid的参数pvpid-》sp = set_point;//设置pid的参数sp} /*------------------------------------------------------------------------ pid_tune DESCRIPTION Sets the proportional gain (p_gain), integral gain (i_gain), derivitive gain (d_gain), and the dead band (dead_band) of a pid control structure _pid. (pid_tune 描述集的比例增益( p_gain ) ,积分增益( i_gain ) , derivitive增益( d_gain ) ,与死人波段( dead_band ) 1 PID控制结构_pid 。) ------------------------------------------------------------------------*/ //定义一个函数pid_tunevoid pid_tune(struct _pid *pid, float p_gain, float i_gain, float d_gain, int dead_band) { //设置pid的参数pgain,igain,dgain,deadband,integral,last_errorpid-》pgain = p_gain; pid-》igain = i_gain; pid-》dgain = d_gain; pid-》deadband = dead_band; pid-》integral= integral_val; pid-》last_error=0; } /*------------------------------------------------------------------------ pid_setinteg DESCRIPTION Set a new value for the integral term of the pid equation. This is useful for setting the initial output of the pid controller at start up. (pid_setinteg 描述设置一个新的价值为积分任期的PID方程。 这是非常有用的设置初始输出的 PID控制器在启动。) ------------------------------------------------------------------------*/ //定义一个函数pid_setintegvoid pid_setinteg(struct _pid *pid,float new_integ) { //设置pid的参数integral,last_errorpid-》integral = new_integ; pid-》last_error = 0; }
翻译啊!!!加急!!!
设计周期。(PID)控制器的古典proportional-integral-derivative常用在产业由于其sim - plicity、明确的功能,并且易实现性。
求一篇和“现金流量的资本决策分析”相关的英文文章
好了!我把刚才那文章翻译成英文了!望采纳!谢谢!Project capital cash flow analysis 1, meaning and function 2, project capital cash flow recognition and statement compiling (1) project capital cash flow of the recognition Cash inflow: Operating income, recycling, fixed assets residual value and recycling liquidity; Cash outflows: Construction investment and circulating fund of the project’s capital, management cost, operating tax and extra, servicing and income tax. When necessary cash outflows also maintain operation investment. The income tax be equivalent to the profits and profit distribution table financial statements and the income tax, different from the project investment cash flow adjustment income tax. Net cash flow: (2) project capital cash flow of the organization 3, project capital cash flow analysis index Just calculate project capital financial internal rate of return index Project capital financial internal rate of return benchmark parameters should reflect the project sponsor (representative project owners’ equity investors) in the minimum investment profit expectations (minimum acceptable yields). Judge: When the project is capital financial internal rate of return is equal to or greater than the minimum acceptable yields, and explained in the financing solutions, project capital gain profit level exceed or meeting the requirements, the financing solutions are acceptable. (3) investment parties cash flow analysis 1, investment parties of the cash flows of recognition 2, investment parties cash flow analysis indicators note (1) in the equity percentage share or profits and losses and risk under the principle of investment vested interests are generally equal, don’t computed the index. (2) only investment parties are equity outside of the unequal distribution of interests, or is not proportional contribution and distribution of cooperation project of business, investment parties yields will have differences!